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celestial-vault b36fe247fd add dev command for cline-core changes for cli 2025-10-04 10:16:12 -07:00
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---
name: cline-sdk
description: Comprehensive Cline SDK skill for building AI agents. Covers the Agent runtime, ClineCore sessions, custom tools, plugins, events, LLM providers, scheduling, multi-agent teams, and production deployment. Use for any task involving @cline/sdk or its sub-packages.
metadata:
references: agent, clinecore
---
# Cline SDK Skill
Consolidated skill for building AI agents with the Cline SDK. Use the decision trees below to find the right entry point and API surface, then load detailed references.
## Critical Rules
Follow these rules in all Cline SDK code:
1. Install with `npm install @cline/sdk`. The `@cline/sdk` package re-exports everything from `@cline/core`, `@cline/agents`, `@cline/llms`, and `@cline/shared`.
2. Requires Node.js 22 or later.
3. Use `createTool()` from `@cline/sdk` (or `@cline/shared`) to define tools. Tool names must be `snake_case`.
4. Return errors as structured data from tool `execute` functions. Throwing counts as a "mistake" against the agent's mistake limit.
5. Use `lifecycle: { completesRun: true }` on tools that should end the agent loop (e.g. a "submit answer" tool).
6. When using `ClineCore`, always call `dispose()` when done to clean up resources.
7. The standalone `Agent` and `ClineCore` have different event systems. For `Agent`: use `agent.subscribe()` to get `AgentRuntimeEvent` types (text streaming is `"assistant-text-delta"`, result text is `result.outputText`). For `ClineCore`: use `cline.subscribe()` to get `CoreSessionEvent` types (text streaming is `"chunk"` with `payload.type === "text"`, result text is `result.text`). There is no top-level `onEvent` field on `AgentRuntimeConfig` -- use `agent.subscribe()` or `hooks.onEvent` instead. Do not use event types like `"content_update"` or `"content_start"` with `agent.subscribe()` -- those are internal legacy types from the ClineCore adapter layer.
## How to Use This Skill
### Reference File Structure
The two main API surfaces (`Agent` and `ClineCore`) follow a 4-file pattern. Cross-cutting concepts are single-file guides.
Each main API surface in `./references/<api>/` contains:
| File | Purpose | When to Read |
|------|---------|--------------|
| `REFERENCE.md` | Overview, when to use, quick start | Always read first |
| `api.md` | Full API: classes, methods, config, types | Writing code |
| `patterns.md` | Common patterns, best practices | Implementation guidance |
| `gotchas.md` | Pitfalls, limitations, debugging | Troubleshooting |
Cross-cutting concepts in `./references/<concept>/` have `REFERENCE.md` as the entry point.
### Reading Order
1. Start with `REFERENCE.md` for your chosen API surface
2. Then read additional files relevant to your task:
- Writing agent code -> `api.md`
- Common patterns -> `patterns.md`
- Creating tools -> `tools/REFERENCE.md`
- Adding plugins/hooks -> `plugins/REFERENCE.md`
- Configuring LLM providers -> `providers/REFERENCE.md`
- Streaming events -> `events/REFERENCE.md`
- Deploying to production -> `production/REFERENCE.md`
- Scheduling agents -> `scheduling/REFERENCE.md`
- Multi-agent orchestration -> `multi-agent/REFERENCE.md`
- Debugging -> `gotchas.md`
### Example Paths
```
./references/agent/REFERENCE.md # Start here for lightweight agents
./references/clinecore/REFERENCE.md # Start here for full runtime
./references/agent/api.md # Agent class, config, methods
./references/tools/REFERENCE.md # Creating and using tools
./references/plugins/REFERENCE.md # Plugin system
./references/providers/REFERENCE.md # LLM provider configuration
```
## Quick Decision Trees
### "Which API surface should I use?"
```
Which API?
+-- I want a simple, stateless agent with custom tools
| +-- agent/ (Agent class from @cline/agents)
+-- I need session persistence, built-in tools, config discovery
| +-- clinecore/ (ClineCore from @cline/core)
+-- I want built-in file/shell/search/web tools
| +-- clinecore/ (has built-in tools; Agent does not)
+-- I want scheduled or recurring agents
| +-- clinecore/ (automation API)
+-- I need multi-process or multi-client session sharing
| +-- clinecore/ (hub-backed runtime)
+-- I'm building a browser-compatible agent
| +-- agent/ (no Node.js dependencies)
```
### "I need to create tools"
```
Tools?
+-- Define a custom tool with schema -> tools/REFERENCE.md
+-- Use built-in tools (bash, editor, read_files) -> tools/REFERENCE.md (built-in section)
+-- Control tool approval/policies -> tools/REFERENCE.md (policies section)
+-- Tool that ends the agent loop -> tools/REFERENCE.md (completion tools)
+-- Package tools as a reusable plugin -> plugins/REFERENCE.md
```
### "I need to handle events"
```
Events?
+-- Stream text/reasoning in real time -> events/REFERENCE.md
+-- Track token usage and costs -> events/REFERENCE.md
+-- Watch tool calls -> events/REFERENCE.md
+-- Detect completion/errors -> events/REFERENCE.md
+-- Hook into lifecycle stages -> plugins/REFERENCE.md
```
### "I need to configure a model provider"
```
Providers?
+-- Anthropic (Claude) -> providers/REFERENCE.md
+-- OpenAI (GPT) -> providers/REFERENCE.md
+-- Google (Gemini/Vertex) -> providers/REFERENCE.md
+-- AWS Bedrock -> providers/REFERENCE.md
+-- Mistral -> providers/REFERENCE.md
+-- OpenAI-compatible (vLLM, Together, etc.) -> providers/REFERENCE.md
+-- Custom/self-hosted provider -> providers/REFERENCE.md
```
### "I need plugins or hooks"
```
Plugins?
+-- Package tools + hooks together -> plugins/REFERENCE.md
+-- Observe tool calls (logging, metrics) -> plugins/REFERENCE.md
+-- Intercept lifecycle events -> plugins/REFERENCE.md
+-- Add system prompt rules -> plugins/REFERENCE.md
+-- Distribute via npm/git -> plugins/REFERENCE.md
```
### "I need multi-agent coordination"
```
Multi-agent?
+-- Spawn one-off background agents -> multi-agent/REFERENCE.md (sub-agents)
+-- Persistent cross-session teams -> multi-agent/REFERENCE.md (teams)
+-- Parent-child delegation -> multi-agent/REFERENCE.md (sub-agents)
+-- Peer-to-peer task board -> multi-agent/REFERENCE.md (teams)
```
### "I need scheduling or automation"
```
Scheduling?
+-- Recurring cron jobs -> scheduling/REFERENCE.md
+-- One-off scheduled tasks -> scheduling/REFERENCE.md
+-- Event-driven triggers -> scheduling/REFERENCE.md
+-- CLI schedule management -> scheduling/REFERENCE.md
```
### "I need to go to production"
```
Production?
+-- Error handling and status checks -> production/REFERENCE.md
+-- Cost control and token limits -> production/REFERENCE.md
+-- Observability (OpenTelemetry) -> production/REFERENCE.md
+-- Security and sandboxing -> production/REFERENCE.md
+-- Deployment patterns -> production/REFERENCE.md
```
### Troubleshooting Index
- Agent loop not stopping -> `tools/REFERENCE.md` (completion tools)
- Tool errors crashing the agent -> `agent/gotchas.md` or `clinecore/gotchas.md`
- Provider auth failures -> `providers/REFERENCE.md`
- Session not persisting -> `clinecore/gotchas.md`
- Token usage too high -> `production/REFERENCE.md` (cost control)
- Hub connection issues -> `clinecore/gotchas.md`
- Plugin not loading -> `plugins/REFERENCE.md`
- Events not firing -> `events/REFERENCE.md`
## Product Index
### API Surfaces
| API | Entry File | Description |
|-----|------------|-------------|
| Agent | `./references/agent/REFERENCE.md` | Lightweight stateless agent loop |
| ClineCore | `./references/clinecore/REFERENCE.md` | Full runtime with sessions, persistence, built-in tools |
### Cross-Cutting Concepts
| Concept | Entry File | Description |
|---------|------------|-------------|
| Tools | `./references/tools/REFERENCE.md` | Built-in and custom tool creation |
| Plugins | `./references/plugins/REFERENCE.md` | Extension system with hooks |
| Events | `./references/events/REFERENCE.md` | Real-time streaming events |
| Providers | `./references/providers/REFERENCE.md` | LLM provider configuration |
| Production | `./references/production/REFERENCE.md` | Deployment, security, observability |
| Scheduling | `./references/scheduling/REFERENCE.md` | Cron jobs and automation |
| Multi-Agent | `./references/multi-agent/REFERENCE.md` | Teams and sub-agents |
### Package Map
| Package | Purpose |
|---------|---------|
| `@cline/sdk` | Everything you need, install this one |
| `@cline/core` | Sessions, persistence, built-in tools, config, hub |
| `@cline/agents` | Stateless agent loop, tool orchestration, streaming |
| `@cline/llms` | LLM provider gateway |
| `@cline/shared` | Types, tool helpers, hook engine |
## Resources
Repository: https://github.com/cline/cline
SDK Source: https://github.com/cline/cline/tree/main/sdk
Documentation: https://docs.cline.bot/sdk/overview
Discord: https://discord.gg/cline
@@ -1,107 +0,0 @@
# Agent Runtime
The `Agent` class (also exported as `AgentRuntime`) is the lightweight, stateless agent loop from `@cline/agents`. It handles the core iteration cycle: send messages to an LLM, execute tool calls, collect results, and repeat until the task is done.
## When to Use Agent
| Use Agent when... | Use ClineCore instead when... |
|---|---|
| You want a simple agent with custom tools | You need built-in tools (bash, editor, etc.) |
| You want minimal dependencies | You need session persistence |
| You need browser compatibility | You need config discovery from `.cline/` |
| You're building a stateless worker | You need multi-process session sharing |
| You want full control over the runtime | You want batteries-included setup |
## Quick Start
```typescript
import { Agent } from "@cline/sdk"
const agent = new Agent({
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
apiKey: process.env.ANTHROPIC_API_KEY,
systemPrompt: "You are a helpful assistant.",
tools: [],
})
const result = await agent.run("What is the capital of France?")
console.log(result.outputText)
```
## Core Concepts
The Agent operates in a loop:
1. Accept user input (string, message, or array of messages)
2. Build turn context (system prompt, messages, tools)
3. Call the LLM provider
4. If the model returns tool calls, execute them and loop back to step 3
5. If the model returns text without tool calls, the run completes
6. Emit events throughout for streaming
The agent is stateless in the sense that it does not persist anything to disk. Conversation history is held in memory and can be accessed via `snapshot()`.
## Key APIs
- `new Agent(config)` or `createAgent(config)` - Create an agent
- `agent.run(input)` - Start a run with user input
- `agent.continue(input?)` - Continue an existing conversation
- `agent.abort(reason?)` - Cancel an active run
- `agent.subscribe(listener)` - Listen to streaming events
- `agent.snapshot()` - Get current runtime state
- `agent.restore(messages)` - Replace message history
See `api.md` for full API details.
## Multi-Turn Conversations
```typescript
const agent = new Agent({
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
systemPrompt: "You are a helpful assistant.",
tools: [],
})
const first = await agent.run("What is 2 + 2?")
console.log(first.outputText)
const second = await agent.continue("Now multiply that by 3")
console.log(second.outputText)
```
Use `agent.hasRun` to check if a run has already been executed, which determines whether to call `run()` or `continue()`.
## Event Streaming
Use `agent.subscribe()` to stream events in real time. Register the listener before calling `run()` to avoid missing early events.
There is no top-level `onEvent` field on the Agent config. For an async alternative, use `hooks.onEvent` (see `api.md` and `gotchas.md`).
```typescript
const agent = new Agent({
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
systemPrompt: "You are a helpful assistant.",
tools: [],
})
agent.subscribe((event) => {
if (event.type === "assistant-text-delta") {
process.stdout.write(event.text)
}
})
const result = await agent.run("What is the capital of France?")
```
See `events/REFERENCE.md` for the full event type catalog.
## Next Steps
- `api.md` - Full Agent API reference
- `patterns.md` - Common patterns and best practices
- `gotchas.md` - Pitfalls and debugging
- `../tools/REFERENCE.md` - Creating custom tools
- `../events/REFERENCE.md` - Event system details
- `../providers/REFERENCE.md` - Provider configuration
@@ -1,231 +0,0 @@
# Agent API Reference
## Constructor
```typescript
import { Agent } from "@cline/sdk"
const agent = new Agent(config: AgentRuntimeConfig)
```
Also available via factory function:
```typescript
import { createAgent } from "@cline/sdk"
const agent = createAgent(config)
```
## AgentRuntimeConfig
Two config forms exist as a discriminated union:
### With Provider ID (recommended)
```typescript
interface AgentRuntimeConfigWithProvider {
providerId: string // e.g. "anthropic", "openai", "gemini"
modelId: string // e.g. "claude-sonnet-4-6", "gpt-5.5"
apiKey?: string // provider API key
baseUrl?: string // custom endpoint
headers?: Record<string, string>
systemPrompt?: string
tools?: AgentTool[]
initialMessages?: AgentMessage[]
toolPolicies?: Record<string, ToolPolicy>
hooks?: Partial<AgentRuntimeHooks>
plugins?: AgentPlugin[]
}
```
### With Pre-built Model
```typescript
interface AgentRuntimeConfigWithModel {
model: AgentModel // pre-built model from gateway
systemPrompt?: string
tools?: AgentTool[]
initialMessages?: AgentMessage[]
toolPolicies?: Record<string, ToolPolicy>
hooks?: Partial<AgentRuntimeHooks>
plugins?: AgentPlugin[]
}
```
Note: there is no top-level `onEvent` field on `AgentRuntimeConfig`. For event streaming, use `agent.subscribe()` or `hooks.onEvent` (see AgentRuntimeHooks below).
## Methods
### run(input)
Start the agent with user input. Returns when the agent loop completes.
```typescript
const result: AgentRunResult = await agent.run("Build a REST API")
```
Input can be a string, an `AgentMessage`, or an array of `AgentMessage[]`.
### continue(input?)
Continue an existing conversation with optional new input.
```typescript
const result = await agent.continue("Now add authentication")
```
### abort(reason?)
Cancel the currently active run.
```typescript
agent.abort("User cancelled")
```
### subscribe(listener)
Register a listener for streaming events.
```typescript
const unsubscribe = agent.subscribe((event: AgentRuntimeEvent) => {
// handle event
})
// Later: stop listening
unsubscribe()
```
### snapshot()
Get the current runtime state including message history.
```typescript
const state: AgentRuntimeStateSnapshot = agent.snapshot()
```
### restore(messages)
Replace the agent's message history.
```typescript
agent.restore(previousMessages)
```
### hasRun
Boolean property indicating whether `run()` has been called at least once.
```typescript
if (agent.hasRun) {
await agent.continue(input)
} else {
await agent.run(input)
}
```
## AgentRunResult
Returned by `run()` and `continue()`.
```typescript
interface AgentRunResult {
agentId: string
agentRole?: string
runId: string
status: "completed" | "aborted" | "failed"
iterations: number
outputText: string
messages: readonly AgentMessage[]
usage: AgentUsage
error?: Error
}
```
### Status Values
- `"completed"` - Agent finished normally
- `"aborted"` - Cancelled via `abort()`
- `"failed"` - Unrecoverable error
## AgentMessage
```typescript
interface AgentMessage {
id: string
role: "user" | "assistant" | "tool"
content: AgentMessagePart[]
createdAt: number
metadata?: Record<string, unknown>
modelInfo?: { id: string; provider: string; family?: string }
metrics?: {
inputTokens: number
outputTokens: number
cacheReadTokens?: number
cacheWriteTokens?: number
cost?: number
}
}
```
## AgentUsage
```typescript
interface AgentUsage {
inputTokens: number
outputTokens: number
cacheReadTokens: number
cacheWriteTokens: number
totalInputTokens: number
totalOutputTokens: number
totalCost?: number
}
```
## AgentRuntimeHooks
```typescript
interface AgentRuntimeHooks {
beforeRun?(context): AgentStopControl | undefined
afterRun?(context): void
beforeModel?(context): AgentBeforeModelResult | undefined
afterModel?(context): AgentStopControl | undefined
beforeTool?(context): AgentBeforeToolResult | undefined
afterTool?(context): AgentAfterToolResult | undefined
onEvent?(event: AgentRuntimeEvent): void | Promise<void>
}
```
Hooks can intercept and modify behavior at each stage. Return a stop control from `beforeRun`, `afterModel`, or `beforeTool` to halt the agent loop.
`hooks.onEvent` receives the same `AgentRuntimeEvent` types as `agent.subscribe()`, but hook callbacks are awaited (can be async), while `subscribe()` listeners are called synchronously. Use `subscribe()` for UI streaming and `hooks.onEvent` for async side effects like logging to an external service.
## AgentRuntimeStateSnapshot
```typescript
interface AgentRuntimeStateSnapshot {
messages: readonly AgentMessage[]
usage: AgentUsage
iterations: number
status: string
}
```
## Factory: createAgentRuntime
Lower-level factory that returns the same `Agent` class:
```typescript
import { createAgentRuntime } from "@cline/sdk"
const runtime = createAgentRuntime(config)
```
## See Also
- `REFERENCE.md` - Overview and quick start
- `patterns.md` - Common patterns
- `../tools/REFERENCE.md` - Tool creation
- `../events/REFERENCE.md` - Event types
- `../providers/REFERENCE.md` - Provider setup
@@ -1,134 +0,0 @@
# Agent Gotchas
## Agent Loop Never Stops
If the agent keeps iterating without completing:
- Make sure at least one tool has `lifecycle: { completesRun: true }` if you want the agent to explicitly finish.
- Without any tools, the agent will complete after the model returns text without tool calls.
- If using tools, ensure the system prompt guides the model toward calling the completion tool when done.
- Check that `completesRun` tools return successfully (not throwing errors).
## Tool Errors Count as Mistakes
When a tool's `execute` function throws an exception, the SDK counts it as a "mistake." After too many mistakes, the agent stops with a `mistake_limit` finish reason.
Instead, return errors as structured data:
```typescript
// Bad: throwing
execute: async (input) => {
throw new Error("File not found")
}
// Good: returning error data
execute: async (input) => {
return { error: "File not found", path: input.path }
}
```
## run() vs continue()
- Call `run()` for the first interaction. It sets up the conversation.
- Call `continue()` for subsequent messages. It appends to the existing conversation.
- Calling `run()` a second time resets the conversation history.
- Use `agent.hasRun` to check which method to call.
## Browser Compatibility
`@cline/agents` (and by extension, the `Agent` class) is browser-safe with no Node.js dependencies. However, `@cline/core` and `ClineCore` require Node.js 22+. If you import from `@cline/sdk`, you get everything including the Node-only code. For browser usage, import directly from `@cline/agents`:
```typescript
import { Agent } from "@cline/agents"
```
## No Top-Level onEvent on Agent Config
`AgentRuntimeConfig` does not have a top-level `onEvent` field. Passing `onEvent` to `new Agent({ onEvent: ... })` has no effect. There are two ways to receive events:
```typescript
// Option 1: subscribe() - synchronous, best for UI streaming
const agent = new Agent({ ...config })
agent.subscribe((event) => {
if (event.type === "assistant-text-delta") {
process.stdout.write(event.text)
}
})
// Option 2: hooks.onEvent - awaited, best for async side effects
const agent = new Agent({
...config,
hooks: {
onEvent: async (event) => {
if (event.type === "assistant-text-delta") {
await logToService(event.text)
}
},
},
})
```
Both receive the same `AgentRuntimeEvent` types. Prefer `subscribe()` for streaming UI.
## Event Listener Timing
Register event listeners via `subscribe()` before calling `run()`:
```typescript
// Good: subscribe before run
agent.subscribe(handler)
const result = await agent.run(input)
// Bad: subscribing after run starts loses early events
const promise = agent.run(input)
agent.subscribe(handler) // may miss events
```
## Tool Input Schema Matters
The model uses the tool's `inputSchema` to decide what arguments to pass. A vague or missing schema leads to incorrect tool calls.
- Use `z.enum()` for fixed value sets, not free-form strings
- Describe every property with `.describe()` in Zod or `description` in JSON Schema
- Include constraints (rate limits, max values) in the tool description
## Memory and Long Conversations
The Agent holds all messages in memory. For long-running conversations, memory usage grows with each turn. Consider:
- Using `ClineCore` with compaction for long sessions
- Periodically creating a new agent with a summary of the conversation
- Monitoring `result.usage.totalInputTokens` to track context growth
## Abort Signal Handling in Tools
Long-running tools should respect the abort signal:
```typescript
execute: async (input, context) => {
for (const item of items) {
if (context.abortSignal?.aborted) {
return { partial: results, aborted: true }
}
results.push(await process(item))
}
return { results }
}
```
## Provider API Key
If you get authentication errors, check:
- `apiKey` is set in the config or via environment variables
- The key matches the `providerId` (e.g., Anthropic key for `providerId: "anthropic"`)
- For OpenAI-compatible providers, both `apiKey` and `baseUrl` are set
See `../providers/REFERENCE.md` for provider-specific setup.
## See Also
- `api.md` - Full API reference
- `patterns.md` - Common patterns
- `../tools/REFERENCE.md` - Tool creation
- `../clinecore/REFERENCE.md` - Use ClineCore for persistence
@@ -1,258 +0,0 @@
# Agent Patterns
## Interactive CLI Agent
A multi-turn conversational agent in the terminal with streaming output:
```typescript
import { Agent } from "@cline/sdk"
import * as readline from "node:readline"
const agent = new Agent({
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
apiKey: process.env.ANTHROPIC_API_KEY,
systemPrompt: "You are a helpful assistant. Keep responses concise.",
tools: [],
})
agent.subscribe((event) => {
if (event.type === "assistant-text-delta") {
process.stdout.write(event.text)
}
})
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout,
})
function prompt(): void {
rl.question("\nYou: ", async (input) => {
const trimmed = input.trim()
if (!trimmed || trimmed === "exit") {
rl.close()
return
}
process.stdout.write("\nAssistant: ")
if (agent.hasRun) {
await agent.continue(trimmed)
} else {
await agent.run(trimmed)
}
process.stdout.write("\n")
prompt()
})
}
prompt()
```
## Conversational Agent (Slack Bot, Chat App)
Maintain per-thread agents with conversation memory:
```typescript
import { Agent } from "@cline/sdk"
const agents = new Map<string, Agent>()
async function handleMessage(threadId: string, message: string) {
let agent = agents.get(threadId)
if (!agent) {
agent = new Agent({
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
systemPrompt: "You are a concise assistant.",
tools: [],
})
agents.set(threadId, agent)
}
const result = agent.hasRun
? await agent.continue(message)
: await agent.run(message)
return result.outputText
}
```
## Streaming UI
Build a real-time UI by handling events via `subscribe()`:
```typescript
const agent = new Agent({
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
systemPrompt: "You are a helpful assistant.",
tools: [myTool],
})
agent.subscribe((event) => {
switch (event.type) {
case "assistant-text-delta":
ui.appendText(event.text)
break
case "assistant-message":
ui.endText()
break
case "turn-started":
ui.startTurn(event.iteration)
break
case "turn-finished":
if (event.toolCallCount > 0) ui.showToolCount(event.toolCallCount)
break
case "usage-updated":
ui.updateUsage(event.usage.inputTokens, event.usage.outputTokens)
break
}
})
const result = await agent.run("Hello!")
```
## Structured Output via Completion Tool
Use a tool with `completesRun: true` to extract structured data:
```typescript
import { Agent, createTool } from "@cline/sdk"
import { z } from "zod"
const submitReview = createTool({
name: "submit_review",
description: "Submit the final code review with structured feedback.",
inputSchema: z.object({
summary: z.string(),
issues: z.array(z.object({
file: z.string(),
line: z.number(),
severity: z.enum(["error", "warning", "info"]),
message: z.string(),
})),
approved: z.boolean(),
}),
lifecycle: { completesRun: true },
execute: async (input) => input,
})
const agent = new Agent({
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
systemPrompt: "Review the code diff and submit structured feedback.",
tools: [submitReview],
})
const result = await agent.run(diffContent)
const review = result.toolCalls.find(tc => tc.name === "submit_review")
console.log(review?.output)
```
## Agent with Abort/Timeout
```typescript
const agent = new Agent({
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
systemPrompt: "Analyze this data.",
tools: [],
})
const timeout = setTimeout(() => agent.abort("Timeout"), 30_000)
try {
const result = await agent.run(data)
if (result.status === "aborted") {
console.log("Agent was aborted")
} else {
console.log(result.outputText)
}
} finally {
clearTimeout(timeout)
}
```
## Agent with Plugins
```typescript
import { Agent } from "@cline/sdk"
import type { AgentPlugin } from "@cline/sdk"
const loggingPlugin: AgentPlugin = {
name: "logging",
manifest: { capabilities: ["hooks"] },
setup() {},
hooks: {
beforeTool({ toolCall }) {
console.log(`Calling tool: ${toolCall.toolName}`)
},
afterRun({ result }) {
console.log(`Completed in ${result.iterations} iterations`)
},
},
}
const agent = new Agent({
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
systemPrompt: "You are a helpful assistant.",
tools: [myTool],
plugins: [loggingPlugin],
})
```
## Restoring State Across Sessions
Save and restore agent state manually:
```typescript
// Save state
const snapshot = agent.snapshot()
const serialized = JSON.stringify(snapshot.messages)
// Later: restore
const agent2 = new Agent({ ...config })
const messages = JSON.parse(serialized)
agent2.restore(messages)
const result = await agent2.continue("Continue where we left off")
```
For automatic persistence, use `ClineCore` instead.
## Pre-Built Model via Gateway
For advanced provider configuration:
```typescript
import { Agent } from "@cline/sdk"
import { createGateway } from "@cline/llms"
const gateway = createGateway({
providerConfigs: [
{ providerId: "anthropic", apiKey: process.env.ANTHROPIC_API_KEY },
{ providerId: "openai", apiKey: process.env.OPENAI_API_KEY },
],
})
const model = gateway.createAgentModel({
providerId: "anthropic",
modelId: "claude-opus-4-7",
})
const agent = new Agent({
model,
systemPrompt: "You are a helpful assistant.",
tools: [],
})
```
## See Also
- `api.md` - Full API reference
- `gotchas.md` - Common pitfalls
- `../tools/REFERENCE.md` - Creating tools
- `../plugins/REFERENCE.md` - Plugin system
@@ -1,131 +0,0 @@
# ClineCore Runtime
`ClineCore` is the full-featured runtime from `@cline/core`. It wraps the `Agent` loop with session persistence, built-in tools (bash, editor, file reading, search, web fetch), config discovery, plugin loading, and optional hub-backed multi-process support.
## When to Use ClineCore
| Use ClineCore when... | Use Agent instead when... |
|---|---|
| You need built-in tools (bash, editor, etc.) | You only need custom tools |
| You want session persistence to disk | Stateless is fine |
| You need config discovery from `.cline/` dirs | You handle config yourself |
| You want scheduled/automated agents | You don't need scheduling |
| You need multi-client session sharing | Single-process is fine |
| You're building a full application | You want minimal dependencies |
## Quick Start
```typescript
import { ClineCore } from "@cline/sdk"
const cline = await ClineCore.create({ clientName: "my-app" })
const session = await cline.start({
prompt: "Set up CI with GitHub Actions",
config: {
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
apiKey: process.env.ANTHROPIC_API_KEY,
cwd: "/path/to/project",
enableTools: true,
},
})
console.log(session.result?.text)
await cline.dispose()
```
## Core Concepts
### Sessions
Every `cline.start()` call creates a session with a unique ID. Sessions persist their messages and metadata to SQLite. You can list, read, resume, and delete sessions.
### Built-in Tools
ClineCore provides these tools automatically when `enableTools: true`:
| Tool | Description |
|------|-------------|
| `bash` | Execute shell commands |
| `editor` | Edit files |
| `read_files` | Read file contents |
| `apply_patch` | Apply unified diffs |
| `search` | Search file contents and structure |
| `fetch_web` | HTTP requests and web content |
### Config Discovery
ClineCore watches `.cline/` directories for:
- Rules (system prompt additions)
- Skills (domain knowledge)
- Workflows (multi-step procedures)
- Hooks (lifecycle logic)
- Plugins (tool + hook bundles)
- MCP servers (external tool providers)
### Backend Modes
| Mode | Description |
|------|-------------|
| `"auto"` (default) | Tries to connect to a local hub; falls back to in-process if unavailable |
| `"local"` | In-process execution, local SQLite storage, no hub |
| `"hub"` | Requires a compatible local WebSocket hub; fails if unavailable |
| `"remote"` | Connects to an explicit remote hub endpoint |
The default mode is `"auto"`. For simple scripts and CLI tools, `"local"` avoids hub discovery overhead. Hub mode enables multi-client session sharing (e.g., a dashboard watching a running session from another process).
## Key APIs
- `ClineCore.create(options)` - Create and initialize
- `cline.start(input)` - Start a new session
- `cline.send({ sessionId, prompt })` - Send follow-up message
- `cline.subscribe(listener)` - Listen to session events
- `cline.list()` - List sessions
- `cline.get(sessionId)` - Get session metadata
- `cline.readMessages(sessionId)` - Read persisted messages
- `cline.getAccumulatedUsage(sessionId)` - Token/cost totals
- `cline.abort(sessionId)` - Abort a session
- `cline.delete(sessionId)` - Delete a session
- `cline.dispose()` - Clean up resources
See `api.md` for full API details.
## Event Streaming
`cline.subscribe()` emits `CoreSessionEvent` types. These are different from the `AgentRuntimeEvent` types emitted by the standalone `Agent` class -- see `../events/REFERENCE.md` for the full comparison.
```typescript
cline.subscribe((event) => {
switch (event.type) {
case "chunk":
if (event.payload.type === "text") {
process.stdout.write(event.payload.text)
}
break
case "ended":
console.log(`Session ended: ${event.payload.finishReason}`)
break
}
})
```
ClineCore results use `AgentResult` with `.text` (not `.outputText` like the standalone Agent's `AgentRunResult`).
## Session Persistence
Sessions are stored at:
```
~/.cline/data/sessions/
sessions.db # SQLite database
[session-id].json # Message history
```
## Next Steps
- `api.md` - Full ClineCore API reference
- `patterns.md` - Common patterns and best practices
- `gotchas.md` - Pitfalls and debugging
- `../tools/REFERENCE.md` - Custom tool creation
- `../plugins/REFERENCE.md` - Plugin system
- `../scheduling/REFERENCE.md` - Scheduled agents
@@ -1,304 +0,0 @@
# ClineCore API Reference
## Creating ClineCore
```typescript
import { ClineCore } from "@cline/sdk"
const cline = await ClineCore.create(options: ClineCoreOptions)
```
### ClineCoreOptions
```typescript
interface ClineCoreOptions {
clientName: string // identifies your app
distinctId?: string // user/instance identifier
backendMode?: "auto" | "local" | "hub" | "remote"
hub?: HubOptions
remote?: RemoteOptions
capabilities?: RuntimeCapabilities
toolPolicies?: Record<string, ToolPolicy>
automation?: boolean | ClineCoreAutomationOptions
fetch?: typeof fetch
}
```
### RuntimeCapabilities
```typescript
interface RuntimeCapabilities {
requestToolApproval?: (request: ToolApprovalRequest) => Promise<ToolApprovalResult>
// ... other capability callbacks
}
```
## Starting Sessions
### start(input)
```typescript
const session = await cline.start(input: ClineCoreStartInput)
```
Returns a `StartSessionResult`:
```typescript
interface StartSessionResult {
sessionId: string
manifest: SessionManifest
manifestPath: string
messagesPath: string
result?: AgentResult
}
```
### ClineCoreStartInput
```typescript
interface ClineCoreStartInput {
prompt: string
config: CoreSessionConfig
source?: string
interactive?: boolean
sessionMetadata?: Record<string, unknown>
initialMessages?: AgentMessage[]
toolPolicies?: Record<string, ToolPolicy>
capabilities?: RuntimeCapabilities
}
```
### CoreSessionConfig
```typescript
interface CoreSessionConfig {
cwd?: string // working directory
providerId: string // LLM provider
modelId: string // model identifier
apiKey?: string // provider API key
systemPrompt?: string // custom system prompt
tools?: readonly AgentTool[] // additional custom tools
enableTools?: boolean // enable built-in tools
hooks?: Partial<AgentRuntimeHooks> // runtime hooks
extensions?: AgentPlugin[] // plugins loaded inline
pluginPaths?: string[] // paths to plugin packages
extensionLoading?: "isolated" | "direct"
extensionContext?: { // context passed to plugin setup()
workspace?: { rootPath: string; cwd: string }
}
checkpointConfig?: CoreCheckpointConfig
compactionConfig?: CoreCompactionConfig
telemetry?: ITelemetryService
logger?: BasicLogger
enableSpawnAgent?: boolean // enable sub-agent spawning
enableAgentTeams?: boolean // enable team coordination
teamName?: string // team identifier
}
```
`extensions` passes plugin objects directly. `pluginPaths` points to directories with `package.json` containing a `cline.plugins` field. Set `extensionContext.workspace` so plugins receive `ctx.workspaceInfo` in their `setup()` call -- without it, `ctx.workspaceInfo` is undefined.
## Follow-Up Messages
### send({ sessionId, prompt })
Send a follow-up message to an existing session:
```typescript
const result = await cline.send({
sessionId: session.sessionId,
prompt: "Now add authentication",
})
```
Returns `AgentResult | undefined`.
## Event Subscription
### subscribe(listener, options?)
```typescript
const unsubscribe = cline.subscribe(
(event: CoreSessionEvent) => {
// handle events
},
{ sessionId: "optional-filter" }
)
```
### CoreSessionEvent
```typescript
type CoreSessionEvent =
| { type: "chunk"; payload: SessionChunkEvent }
| { type: "agent_event"; payload: { sessionId: string, event: AgentEvent } }
| { type: "ended"; payload: SessionEndedEvent }
| { type: "team_progress"; payload: SessionTeamProgressEvent }
| { type: "status"; payload: { sessionId: string, status: string } }
| { type: "hook"; payload: SessionToolEvent }
```
## Session Management
### list(limit?, options?)
```typescript
const sessions: SessionRecord[] = await cline.list(50)
```
### get(sessionId)
```typescript
const session: SessionRecord = await cline.get(sessionId)
```
### readMessages(sessionId)
```typescript
const messages: AgentMessage[] = await cline.readMessages(sessionId)
```
### getAccumulatedUsage(sessionId)
```typescript
const usage = await cline.getAccumulatedUsage(sessionId)
// usage.usage - root agent only
// usage.aggregateUsage - root + subagents/teammates
```
### update(sessionId, updates)
```typescript
await cline.update(sessionId, { title: "New title" })
```
### abort(sessionId, reason?)
```typescript
await cline.abort(sessionId, "User cancelled")
```
### stop(sessionId)
```typescript
await cline.stop(sessionId)
```
### delete(sessionId)
```typescript
await cline.delete(sessionId)
```
### restore(input)
Restore a session from a checkpoint:
```typescript
await cline.restore({ sessionId, checkpointId })
```
### dispose(reason?)
Clean up all resources. Always call this when done:
```typescript
await cline.dispose("Shutting down")
```
## AgentResult
Returned by session operations:
```typescript
interface AgentResult {
text: string
usage: LegacyAgentUsage
messages: MessageWithMetadata[]
toolCalls: ToolCallRecord[]
iterations: number
finishReason: "completed" | "max_iterations" | "aborted" | "mistake_limit" | "error"
model: { id: string; provider: string; info?: ModelInfo }
startedAt: Date
endedAt: Date
durationMs: number
}
```
## Tool Policies
Control tool access at the session level:
```typescript
const session = await cline.start({
prompt: "Review the code",
config: { ... },
toolPolicies: {
read_files: { autoApprove: true },
bash: { autoApprove: false },
editor: { enabled: false },
},
})
```
### ToolPolicy
```typescript
interface ToolPolicy {
enabled?: boolean // false = tool is hidden from the model
autoApprove?: boolean // false = requires approval callback
}
```
## Interactive Approval
```typescript
const cline = await ClineCore.create({
clientName: "my-app",
capabilities: {
requestToolApproval: async (request) => {
console.log(`Tool: ${request.toolName}, Input: ${JSON.stringify(request.input)}`)
const approved = await askUser(`Allow ${request.toolName}?`)
return { approved }
},
},
})
```
## Automation API
When `automation` is enabled in `ClineCore.create()`:
```typescript
const cline = await ClineCore.create({
clientName: "my-app",
automation: true,
})
// Access automation methods
cline.automation.start()
cline.automation.stop()
cline.automation.reconcile(specs)
cline.automation.ingestEvent(event)
cline.automation.listEvents()
cline.automation.listSpecs()
cline.automation.listRuns()
```
## Settings API
```typescript
// Read settings
const settings = await cline.settings.list()
// Toggle tools, plugins, MCP servers
await cline.settings.toggle({ type: "tool", name: "bash", enabled: true })
```
## See Also
- `REFERENCE.md` - Overview and quick start
- `patterns.md` - Common patterns
- `gotchas.md` - Pitfalls
- `../tools/REFERENCE.md` - Tool creation
- `../plugins/REFERENCE.md` - Plugin system
@@ -1,148 +0,0 @@
# ClineCore Gotchas
## Always Call dispose()
`ClineCore` holds resources (file watchers, database connections, hub connections). Failing to call `dispose()` can leave orphan processes and file locks.
```typescript
const cline = await ClineCore.create({ clientName: "my-app" })
try {
// ... use cline
} finally {
await cline.dispose()
}
```
## Node.js 22 Required
ClineCore and `@cline/core` require Node.js 22 or later. If you're on an older version, you'll get runtime errors. Check with `node --version`.
## Session Config vs Global Config
Tool policies can be set at two levels:
- Global: in `ClineCore.create({ toolPolicies })` -- applies to all sessions
- Per-session: in `cline.start({ toolPolicies })` -- overrides global for that session
Per-session policies take precedence.
## enableTools Must Be Explicit
Built-in tools (bash, editor, read_files, etc.) are not available unless you set `enableTools: true` in the session config:
```typescript
await cline.start({
prompt: "Read package.json",
config: {
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
enableTools: true, // required for built-in tools
},
})
```
Without this, the agent only has access to custom tools you provide via `config.tools`.
## cwd Matters for Built-in Tools
Built-in tools like `bash`, `editor`, and `read_files` operate relative to `config.cwd`. If not set, they use the process working directory. Always set it explicitly for predictable behavior:
```typescript
config: {
cwd: "/absolute/path/to/project",
// ...
}
```
## Hub Startup Latency
With `backendMode: "auto"`, the first session may be slow if a hub daemon needs to be spawned. For immediate responsiveness:
- Use `backendMode: "local"` for in-process execution (fastest startup)
- Pre-warm the hub with `cline hub ensure` CLI command
- Accept the one-time startup cost and let subsequent sessions reuse the hub
## Session Storage Location
Sessions are stored at `~/.cline/data/sessions/`. This includes:
- `sessions.db` - SQLite database with session metadata
- `[session-id].json` - Individual message history files
If you're running in a container or ephemeral environment, these paths may not persist across restarts.
## requestToolApproval Blocks Execution
When a tool policy has `autoApprove: false` and you provide a `requestToolApproval` callback, the agent loop blocks until your callback resolves. If your callback never resolves (e.g., waiting for user input that never comes), the session hangs.
For automated pipelines, either:
- Set all tools to `autoApprove: true`
- Implement a timeout in your approval callback
## Plugin Discovery Paths
ClineCore discovers plugins from:
- Global: `~/.cline/plugins/`
- Workspace: `.cline/plugins/`
For SDK consumers, pass plugins via `extensions: [plugin]` or `pluginPaths: ["./path"]` in the session config.
If a plugin isn't loading, verify:
- The file is in one of the discovery directories, or passed via `extensions`/`pluginPaths`
- The file exports a default plugin object with a non-empty `manifest.capabilities` array
- Every `api.register*` call in `setup()` has a matching capability declared
- If `hooks` is present on the plugin, `"hooks"` is in `capabilities`
## extensionContext.workspace Is Required for Plugins
If your plugins use `ctx.workspaceInfo` (e.g., to resolve workspace paths), you must set `extensionContext.workspace` in the session config. Without it, `ctx.workspaceInfo` is undefined:
```typescript
await cline.start({
config: {
extensions: [myPlugin],
extensionContext: {
workspace: { rootPath: process.cwd(), cwd: process.cwd() },
},
},
})
```
The CLI sets this automatically, but SDK consumers must set it explicitly.
## send() Requires an Active Session
`cline.send()` only works on sessions that are still active. If a session has already completed, `send()` may return `undefined` or fail. Check session status with `cline.get(sessionId)` first.
## Result May Be Undefined
`session.result` can be `undefined` if the session was started but hasn't completed yet (e.g., in a non-blocking hub mode). Check for this:
```typescript
const session = await cline.start({ ... })
if (session.result) {
console.log(session.result.text)
} else {
console.log("Session started but not yet complete")
}
```
## Compaction and Long Sessions
For long-running sessions, message history grows and eventually exceeds the model's context window. ClineCore handles this via compaction, which summarizes older messages. Configure it via `compactionConfig`:
```typescript
config: {
compactionConfig: {
strategy: "summarize",
// ...
},
}
```
The default strategy works for most cases, but extremely long sessions may benefit from tuning.
## See Also
- `api.md` - Full API reference
- `patterns.md` - Common patterns
- `../agent/gotchas.md` - Agent-level gotchas
- `../tools/REFERENCE.md` - Tool troubleshooting
- `../providers/REFERENCE.md` - Provider troubleshooting
@@ -1,279 +0,0 @@
# ClineCore Patterns
## Basic Session with Built-in Tools
```typescript
import { ClineCore } from "@cline/sdk"
const cline = await ClineCore.create({ clientName: "my-app" })
const session = await cline.start({
prompt: "Read package.json and summarize the dependencies",
config: {
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
apiKey: process.env.ANTHROPIC_API_KEY,
cwd: process.cwd(),
enableTools: true,
},
})
console.log(session.result?.text)
await cline.dispose()
```
## Streaming Session with UI Updates
```typescript
const cline = await ClineCore.create({ clientName: "my-app" })
cline.subscribe((event) => {
switch (event.type) {
case "chunk":
if (event.payload.type === "text") {
ui.appendText(event.payload.text)
}
break
case "ended":
ui.showComplete(event.payload.finishReason)
break
}
})
await cline.start({
prompt: "Refactor the auth module",
config: {
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
cwd: "/path/to/project",
enableTools: true,
},
})
```
## Multi-Turn Session
```typescript
const cline = await ClineCore.create({ clientName: "my-app" })
const session = await cline.start({
prompt: "Create a new Express server",
config: {
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
cwd: "/path/to/project",
enableTools: true,
},
})
// Follow-up
const result = await cline.send({
sessionId: session.sessionId,
prompt: "Now add a health check endpoint",
})
console.log(result?.text)
await cline.dispose()
```
## Tiered Permission Model
Auto-approve reads, require approval for writes:
```typescript
const cline = await ClineCore.create({
clientName: "my-app",
toolPolicies: {
read_files: { autoApprove: true },
search: { autoApprove: true },
fetch_web: { autoApprove: true },
bash: { autoApprove: false },
editor: { autoApprove: false },
apply_patch: { autoApprove: false },
},
capabilities: {
requestToolApproval: async (request) => {
const approved = await promptUser(
`Allow ${request.toolName}?\n${JSON.stringify(request.input, null, 2)}`
)
return { approved }
},
},
})
```
## Custom Tools Alongside Built-ins
```typescript
import { ClineCore, createTool } from "@cline/sdk"
import { z } from "zod"
const deployTool = createTool({
name: "deploy",
description: "Deploy the application to the specified environment.",
inputSchema: z.object({
environment: z.enum(["staging", "production"]),
}),
execute: async (input) => {
const result = await runDeployment(input.environment)
return { url: result.url, status: "deployed" }
},
})
const cline = await ClineCore.create({ clientName: "my-app" })
await cline.start({
prompt: "Deploy the app to staging",
config: {
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
cwd: process.cwd(),
enableTools: true,
tools: [deployTool],
},
})
```
## Session with Plugins
Load plugins inline with `extensions` and provide workspace context so plugins can access `ctx.workspaceInfo`:
```typescript
import { ClineCore } from "@cline/sdk"
import myPlugin from "./my-plugin"
const cline = await ClineCore.create({
clientName: "my-app",
backendMode: "local",
})
await cline.start({
prompt: "Do the thing my plugin enables",
config: {
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
cwd: process.cwd(),
enableTools: true,
extensions: [myPlugin],
extensionContext: {
workspace: { rootPath: process.cwd(), cwd: process.cwd() },
},
},
})
await cline.dispose()
```
For directory-based plugin packages, use `pluginPaths` instead:
```typescript
config: {
pluginPaths: ["./my-cline-plugin"],
extensionContext: {
workspace: { rootPath: process.cwd(), cwd: process.cwd() },
},
}
```
See `../plugins/REFERENCE.md` for the full plugin authoring guide.
## Session Listing and Replay
```typescript
const cline = await ClineCore.create({ clientName: "my-app" })
// List recent sessions
const sessions = await cline.list(10)
for (const session of sessions) {
console.log(`${session.id}: ${session.title}`)
}
// Read messages from a past session
const messages = await cline.readMessages(sessions[0].id)
for (const msg of messages) {
console.log(`[${msg.role}] ${msg.content}`)
}
// Check usage
const usage = await cline.getAccumulatedUsage(sessions[0].id)
console.log(`Total tokens: ${usage.aggregateUsage.totalInputTokens + usage.aggregateUsage.totalOutputTokens}`)
```
## Graceful Shutdown
```typescript
const cline = await ClineCore.create({ clientName: "my-app" })
process.on("SIGTERM", async () => {
await cline.dispose("SIGTERM received")
process.exit(0)
})
// Run sessions...
```
## Stateless Worker Pattern
For request/response workloads (API endpoints, queue consumers):
```typescript
import { ClineCore } from "@cline/sdk"
const cline = await ClineCore.create({
clientName: "worker",
backendMode: "local",
})
async function handleRequest(prompt: string, workspace: string) {
const session = await cline.start({
prompt,
config: {
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
cwd: workspace,
enableTools: true,
},
})
return {
text: session.result?.text,
usage: session.result?.usage,
sessionId: session.sessionId,
}
}
```
## Hub-Backed Multi-Client
Multiple clients can attach to the same session:
```typescript
// Process 1: start session
const cline = await ClineCore.create({
clientName: "backend",
backendMode: "hub",
})
const session = await cline.start({
prompt: "Long running refactor task",
config: { ... },
})
// Process 2: attach and stream events
const viewer = await ClineCore.create({
clientName: "dashboard",
backendMode: "hub",
})
viewer.subscribe((event) => {
dashboard.render(event)
}, { sessionId: session.sessionId })
```
## See Also
- `api.md` - Full API reference
- `gotchas.md` - Common pitfalls
- `../tools/REFERENCE.md` - Tool creation
- `../plugins/REFERENCE.md` - Plugin system
- `../scheduling/REFERENCE.md` - Scheduled agents
@@ -1,269 +0,0 @@
# Events
The Cline SDK has three event layers. Which one you use depends on whether you're working with the standalone `Agent` class or `ClineCore`.
## Which Events Do I Get?
| If you use... | You subscribe with... | You receive... | Text streaming event |
|---|---|---|---|
| Standalone `Agent` | `agent.subscribe()` | `AgentRuntimeEvent` | `assistant-text-delta` |
| `ClineCore` | `cline.subscribe()` | `CoreSessionEvent` | `chunk` (with `payload.type === "text"`) |
These are different event types with different shapes. Do not mix them up.
## Layer 1: AgentRuntimeEvent (Standalone Agent)
Emitted by the `Agent` class via `agent.subscribe()`. This is what you get when using `new Agent(...)` directly. Every event includes a `snapshot` field with the current `AgentRuntimeStateSnapshot`.
### Run Lifecycle
```typescript
{ type: "run-started", snapshot }
{ type: "run-finished", snapshot, result: AgentRunResult }
{ type: "run-failed", snapshot, error: Error }
```
### Turns
```typescript
{ type: "turn-started", snapshot, iteration: number }
{ type: "turn-finished", snapshot, iteration: number, toolCallCount: number }
```
### Text Streaming
```typescript
// Streaming text delta (arrives as chunks during generation)
{ type: "assistant-text-delta", snapshot, iteration: number, text: string, accumulatedText: string }
// Streaming reasoning delta (when model uses extended thinking)
{ type: "assistant-reasoning-delta", snapshot, iteration: number, text: string }
// Complete assistant message after model finishes
{ type: "assistant-message", snapshot, iteration: number, message: AgentMessage, finishReason: string }
```
### Messages
```typescript
// Fired when any message (user or assistant) is added to conversation history
{ type: "message-added", snapshot, message: AgentMessage }
```
### Tool Events
```typescript
{ type: "tool-started", snapshot, toolCall: { toolName: string, toolCallId: string, input: unknown } }
{ type: "tool-updated", snapshot, toolCall: { toolName: string, toolCallId: string }, update: string }
{ type: "tool-finished", snapshot, toolCall: { toolName: string, toolCallId: string }, message: AgentMessage }
```
### Usage
```typescript
{
type: "usage-updated",
snapshot,
usage: {
inputTokens: number,
outputTokens: number,
cacheReadTokens?: number,
cacheWriteTokens?: number,
totalCost?: number,
},
}
```
### Notices
```typescript
{ type: "status-notice", snapshot, message: string, metadata?: Record<string, unknown> }
```
### Subscribing
Use `agent.subscribe()`. Register the listener before calling `run()` to avoid missing early events.
```typescript
const agent = new Agent({
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
apiKey: process.env.ANTHROPIC_API_KEY,
systemPrompt: "You are a helpful assistant.",
tools: [],
})
agent.subscribe((event) => {
switch (event.type) {
case "assistant-text-delta":
process.stdout.write(event.text)
break
case "tool-started":
console.log(`\nUsing tool: ${event.toolCall.toolName}`)
break
case "usage-updated":
console.log(`Cost: $${event.usage.totalCost?.toFixed(4)}`)
break
case "run-finished":
console.log(`\nDone: ${event.result.status}`)
break
}
})
const result = await agent.run("Hello!")
```
You can also receive events through hooks (these are awaited, so they can be async):
```typescript
const agent = new Agent({
...config,
hooks: {
onEvent: async (event) => {
// Same AgentRuntimeEvent types as subscribe()
},
},
})
```
## Layer 2: AgentEvent (ClineCore Internal)
When using `ClineCore`, a `RuntimeEventAdapter` translates Layer 1 events into a legacy format called `AgentEvent`. You do not interact with this layer directly -- it is projected into `CoreSessionEvent` for subscribers. The key mappings:
| AgentRuntimeEvent (Layer 1) | AgentEvent (Layer 2) |
|---|---|
| `turn-started` | `iteration_start` |
| `turn-finished` | `iteration_end` |
| `assistant-text-delta` | `content_start` (text) |
| `assistant-message` | `content_end` (text) |
| `tool-started` | `content_start` (tool) |
| `tool-updated` | `content_update` (tool) |
| `tool-finished` | `content_end` (tool) |
| `usage-updated` | `usage` (with computed deltas) |
| `run-finished` | `done` |
| `run-failed` | `error` |
| `run-started`, `message-added` | (suppressed, not emitted) |
This layer exists for backwards compatibility. If you see event types like `content_update` or `iteration_start` in other documentation, they refer to this layer, not to what `agent.subscribe()` emits.
## Layer 3: CoreSessionEvent (ClineCore Subscriber)
Emitted by `ClineCore` via `cline.subscribe()`. These are higher-level session events.
```typescript
type CoreSessionEvent =
| { type: "chunk"; payload: SessionChunkEvent }
| { type: "agent_event"; payload: { sessionId: string, event: AgentEvent } }
| { type: "ended"; payload: SessionEndedEvent }
| { type: "team_progress"; payload: SessionTeamProgressEvent }
| { type: "status"; payload: { sessionId: string, status: string } }
| { type: "hook"; payload: SessionToolEvent }
```
### SessionChunkEvent
```typescript
interface SessionChunkEvent {
type: "text" | "reasoning"
text: string
sessionId: string
}
```
### SessionEndedEvent
```typescript
interface SessionEndedEvent {
sessionId: string
finishReason: "completed" | "max_iterations" | "aborted" | "mistake_limit" | "error"
result?: AgentResult
}
```
### Subscribing
```typescript
cline.subscribe((event) => {
switch (event.type) {
case "chunk":
if (event.payload.type === "text") {
process.stdout.write(event.payload.text)
}
break
case "ended":
console.log(`Finished: ${event.payload.finishReason}`)
break
}
})
```
Filter by session:
```typescript
cline.subscribe(handler, { sessionId: "specific-session-id" })
```
## Hub Events (Layer 3b)
When ClineCore runs in hub mode (via `backendMode: "hub"` or `"auto"` when a hub is available), events are projected over WebSocket using `HubEventName` types like `assistant.delta`, `iteration.started`, `tool.started`, etc. You do not interact with these directly -- `cline.subscribe()` still gives you `CoreSessionEvent` regardless of backend mode.
## Result Type Differences
The standalone Agent and ClineCore return different result types:
| API | Result type | Text property |
|---|---|---|
| `agent.run()` | `AgentRunResult` | `result.outputText` |
| `cline.start()` / `cline.send()` | `AgentResult` | `result.text` |
## Common Patterns
### Streaming Text (Standalone Agent)
```typescript
agent.subscribe((event) => {
if (event.type === "assistant-text-delta") {
process.stdout.write(event.text)
}
})
```
### Streaming Text (ClineCore)
```typescript
cline.subscribe((event) => {
if (event.type === "chunk" && event.payload.type === "text") {
process.stdout.write(event.payload.text)
}
})
```
### Usage Tracking (Standalone Agent)
```typescript
agent.subscribe((event) => {
if (event.type === "usage-updated" && event.usage.totalCost) {
console.log(`Running cost: $${event.usage.totalCost.toFixed(4)}`)
}
})
```
### Tool Call Logging (Standalone Agent)
```typescript
agent.subscribe((event) => {
if (event.type === "tool-started") {
console.log(`Tool started: ${event.toolCall.toolName}`)
}
if (event.type === "tool-finished") {
console.log(`Tool finished: ${event.toolCall.toolName}`)
}
})
```
## See Also
- `../agent/REFERENCE.md` - Agent runtime overview
- `../clinecore/REFERENCE.md` - ClineCore session management
- `../plugins/REFERENCE.md` - Plugin hooks for lifecycle events
- `../production/REFERENCE.md` - Observability in production
@@ -1,157 +0,0 @@
# Multi-Agent Coordination
The Cline SDK supports two models for multi-agent work: sub-agents (parent-child) and teams (peer-to-peer).
## Sub-Agents vs Teams
| Feature | Sub-Agents | Teams |
|---------|-----------|-------|
| Enable with | `enableSpawnAgent: true` | `enableAgentTeams: true` |
| Persistence | Session-scoped only | Across sessions |
| Coordination | Parent-child hierarchy | Peer-to-peer |
| Shared state | None | Task board, mailbox, mission log |
| Best for | One-off delegation | Complex multi-session projects |
## Sub-Agents
Sub-agents are spawned by a parent agent during a run. They execute independently and report results back.
### Enabling Sub-Agents
```typescript
const cline = await ClineCore.create({ clientName: "my-app" })
await cline.start({
prompt: "Refactor the auth module and update tests",
config: {
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
enableSpawnAgent: true,
enableTools: true,
},
})
```
When `enableSpawnAgent` is true, the agent gets access to sub-agent tools:
| Tool | Description |
|------|-------------|
| `start_subagent` | Spawn a background agent with a task |
| `message_subagent` | Send a message to a running sub-agent |
| `handoff_to_agent` | Delegate the current task entirely |
| `submit_and_exit` | Signal completion |
### How Sub-Agents Work
1. The parent agent decides a subtask can be delegated
2. It calls `start_subagent` with a role, task description, and optionally a preset
3. The sub-agent runs independently in the background
4. The parent can check status or send follow-up messages
5. Sub-agent results are available to the parent when complete
## Teams
Teams provide persistent, cross-session coordination between agents.
### Enabling Teams
```typescript
await cline.start({
config: {
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
enableAgentTeams: true,
teamName: "auth-sprint",
enableTools: true,
},
})
```
### Team Tools
When `enableAgentTeams` is true, the coordinator agent gets:
| Tool | Description |
|------|-------------|
| `team_spawn_teammate` | Create a new agent with a role and task |
| `team_delegate_task` | Assign a task to an existing teammate |
| `team_check_status` | Check on a delegated task's progress |
| `team_get_result` | Get the completed result from a teammate |
### Team Persistence
Teams store shared state in:
```
~/.cline/data/teams/[team-name]/
task-board.json # task assignments and status
mailbox.json # inter-agent messages
mission-log.json # coordination log
```
This state persists across sessions, so team members can pick up where they left off.
### CLI Team Access
```bash
cline --team-name auth-sprint "Continue the auth refactor"
```
## Choosing Between Sub-Agents and Teams
Use sub-agents when:
- You need one-off parallel execution within a single session
- Tasks are independent and don't need to communicate with each other
- Results only matter to the parent agent
Use teams when:
- Work spans multiple sessions over time
- Agents need to coordinate and share progress
- Tasks have dependencies between them
- You want a persistent record of multi-agent collaboration
## Patterns
### Parallel Research with Sub-Agents
A parent agent spawns multiple sub-agents to research different topics simultaneously:
```typescript
await cline.start({
prompt: `Research these three topics in parallel:
1. Current best practices for JWT auth
2. OAuth 2.0 provider comparison
3. Session management patterns
Spawn a sub-agent for each topic, then synthesize the results.`,
config: {
enableSpawnAgent: true,
enableTools: true,
// ...
},
})
```
### Team Sprint
A coordinator manages a multi-session project:
```typescript
await cline.start({
prompt: `You are the coordinator for the auth-sprint team.
Review the task board and delegate the next highest-priority task
to a teammate. Check status on any in-progress tasks.`,
config: {
enableAgentTeams: true,
teamName: "auth-sprint",
enableTools: true,
// ...
},
})
```
## See Also
- `../clinecore/REFERENCE.md` - ClineCore runtime
- `../clinecore/api.md` - Session config for teams
- `../tools/REFERENCE.md` - Tool system
- `../plugins/REFERENCE.md` - Plugin system
@@ -1,649 +0,0 @@
# Plugins
A Cline plugin is a TypeScript module that extends any agent built on the Cline SDK. The same plugin runs in the Cline CLI, VS Code and JetBrains extensions, and any custom app built on `@cline/core`.
A plugin can:
- Register tools the model can call.
- Hook into the agent loop before/after runs, model calls, and tool calls.
- Rewrite provider messages before they hit the model (custom compaction, redaction, context shaping).
- Register slash commands, prompt rules, providers, and automation event types.
A plugin ships in one of two shapes:
1. Single-file plugin -- one `.ts` file that exports a default plugin object. Drop it in a discovery folder and it loads.
2. Plugin package -- a directory with `package.json`, npm dependencies, and optionally bundled assets. Installable via `cline plugin install`.
Both shapes use the same plugin API.
## The Mental Model
When the host starts a session, it builds a registry of plugins and runs four phases:
1. resolve -- collect the plugin objects.
2. validate -- check each plugin's `manifest`. Capabilities must be non-empty; declared hook stages must have matching handlers; if `hooks` is present, `"hooks"` must be in `capabilities`.
3. setup -- call each plugin's `setup(api, ctx)` once. This is where you `registerTool`, `registerCommand`, etc.
4. activate -- registry is frozen, the agent loop starts, and your hooks/tools are live.
Two invariants the registry enforces:
- Every contribution requires a matching capability. Calling `api.registerRule(...)` without `"rules"` in `manifest.capabilities` throws.
- Capabilities and handlers must agree. Declaring `"hooks"` without a `hooks` object, or vice versa, fails validation.
After validation, registration is one-shot -- no dynamic register/unregister during the session.
## The Smallest Working Plugin
```typescript
import type { AgentPlugin } from "@cline/core"
import { createTool } from "@cline/core"
const plugin: AgentPlugin = {
name: "hello-plugin",
manifest: {
capabilities: ["tools"],
},
setup(api, ctx) {
api.registerTool(
createTool({
name: "say_hello",
description: "Greet a person by name.",
inputSchema: {
type: "object",
properties: { name: { type: "string" } },
required: ["name"],
},
async execute({ name }: { name: string }) {
return { greeting: `Hello, ${name}!` }
},
}),
)
},
}
export default plugin
```
The agent will see `say_hello` as a callable tool.
## The Manifest
```typescript
manifest: {
capabilities: ["tools", "hooks"], // required, non-empty array
paths?: string[], // optional, multi-entry packages
providerIds?: string[], // optional, provider plugins
modelIds?: string[], // optional, model plugins
}
```
### The Complete Capability List
| Capability | What It Unlocks in `api` |
|-----------|--------------------------|
| `"tools"` | `api.registerTool()` |
| `"commands"` | `api.registerCommand()` (slash commands in chat surfaces) |
| `"rules"` | `api.registerRule()` (string injected into the system prompt) |
| `"messageBuilders"` | `api.registerMessageBuilder()` (rewrites provider-bound messages) |
| `"providers"` | `api.registerProvider()` (custom model provider) |
| `"automationEvents"` | `api.registerAutomationEventType()` and `ctx.automation?.ingestEvent()` |
| `"hooks"` | The runtime `hooks` object on the plugin (lifecycle callbacks) |
You declare any combination -- most real plugins need 1-3 capabilities.
## setup(api, ctx) -- The Registration Phase
`setup()` runs once per session before the agent loop starts. Everything you register here is frozen for the lifetime of the session.
### The api Object
Each `register*` method requires the matching capability in your manifest:
```typescript
api.registerTool(tool) // requires "tools"
api.registerCommand({ name, description, handler }) // requires "commands"
api.registerRule({ id, content, source }) // requires "rules"
api.registerMessageBuilder({ name, build }) // requires "messageBuilders"
api.registerProvider({ name, description }) // requires "providers"
api.registerAutomationEventType({ eventType, source }) // requires "automationEvents"
```
### The ctx Object -- Host-Provided Session Context
The second argument carries everything the host knows about the current session. All fields are optional, so feature-detect before using them -- the same plugin must work in hosts that supply less context (unit tests, sandboxed plugin processes).
```typescript
ctx.session?.sessionId // string, stable core session id
ctx.client?.name // host: "cline-cli", "cline-vscode", etc.
ctx.user // authenticated user/org info, when available
ctx.workspaceInfo // { rootPath, hint, latestGitBranchName,
// latestGitCommitHash, associatedRemoteUrls }
ctx.automation?.ingestEvent // emit normalized automation events
ctx.logger?.log // structured logger scoped to this plugin
ctx.telemetry // ITelemetryService, only present in-process
```
Two rules about `ctx.workspaceInfo`:
1. Always prefer `ctx.workspaceInfo?.rootPath` over `process.cwd()`. The CLI may have been launched with `--cwd` without calling `chdir`, and VS Code workspaces don't share a single CWD. `workspaceInfo` is sourced from the session config and is always correct.
2. Don't use `import.meta.url` tricks to find "the workspace". That gives you the plugin's own location, not the user's project.
### Persisting State Across Hooks
`setup()` runs first; hooks fire later. The simplest way to share state is module-level variables:
```typescript
let sessionWorkspaceRoot: string | undefined
let sessionBranch: string | undefined
const plugin: AgentPlugin = {
name: "metrics",
manifest: { capabilities: ["hooks"] },
setup(api, ctx) {
sessionWorkspaceRoot = ctx.workspaceInfo?.rootPath
sessionBranch = ctx.workspaceInfo?.latestGitBranchName
},
hooks: {
beforeTool({ toolCall, input }) {
if (sessionBranch === "main" && toolCall.toolName === "run_commands") {
// inspect input, optionally block
}
return undefined
},
},
}
```
A single Node process may host multiple sessions concurrently. If your plugin will run in a multi-session host, key your state by `ctx.session?.sessionId`:
```typescript
const stateBySession = new Map<string, MyState>()
setup(api, ctx) {
const id = ctx.session?.sessionId
if (id) stateBySession.set(id, /* ... */)
}
```
## Runtime Hooks
Runtime hooks are typed in-process callbacks on the same hook layer the runtime uses internally. They run inside the agent loop with full type information -- no IPC, no JSON marshaling.
Declare `"hooks"` in `manifest.capabilities`, then add a `hooks` property:
```typescript
const plugin: AgentPlugin = {
name: "metrics",
manifest: { capabilities: ["hooks"] },
hooks: {
beforeRun(ctx) { /* ... */ },
beforeTool({ toolCall, input }) { /* ... */ },
afterTool({ toolCall, result }) { /* ... */ },
afterRun({ result }) { /* ... */ },
onEvent(event) { /* ... */ },
},
}
```
### The Seven Hooks
| Hook | Fires | Can Stop the Loop? | Common Uses |
|------|-------|--------------------|-------------|
| `beforeRun` | Before the runtime loop starts | Yes | Greet, log, attach session metadata |
| `afterRun` | After the runtime loop finishes (success, abort, or fail) | No | Notifications, metrics, persistent logs |
| `beforeModel` | Before each model request | Yes (mutate req) | Inject context, last-mile prompt edits |
| `afterModel` | After each model response, before tool execution | Yes | Block based on model output |
| `beforeTool` | Before each tool execution | Yes (`{ stop }`) | Audit, redact, block dangerous tools |
| `afterTool` | After each tool execution | Can replace result | Post-process, redact secrets in tool output |
| `onEvent` | On every `AgentRuntimeEvent` emitted by the runtime | No | Streaming UIs, telemetry pipes |
### Stopping the Loop from a Hook
Several hooks return an optional control object. The most common pattern is `beforeTool` blocking a destructive tool call:
```typescript
beforeTool({ toolCall, input }) {
if (toolCall.toolName === "run_commands") {
const { commands } = input as { commands?: string[] }
if (sessionBranch === "main" && commands?.some(c => c.startsWith("git push"))) {
return { stop: true, reason: "Blocked git push on protected branch" }
}
}
return undefined // explicit "continue"
}
```
Returning `undefined` (or omitting `return`) lets execution continue normally.
### afterRun Semantics
`afterRun` fires for every terminal status -- `completed`, `aborted`, `failed`. If you only want to act on success:
```typescript
afterRun({ result }) {
if (result.status !== "completed") return
// notify, log success metrics, etc.
}
```
### Plugin Hooks vs File Hooks
The runtime supports two hook systems:
- File hooks -- external scripts in `.cline/hooks/` invoked with serialized JSON. Right for user/workspace-specific scripts that don't ship with code.
- Plugin runtime hooks -- typed in-process callbacks. Right when the behavior belongs to a reusable extension and needs typed access to the runtime.
Core adapts file hooks onto the runtime hook layer, so you don't need both. If you're shipping a plugin, write it as runtime hooks.
## Message Builders
Message builders rewrite the provider-bound message list before the model call. They run after runtime messages are converted into SDK message blocks but before core's built-in safety builder.
Use them for:
- Custom compaction policies (replace middle history with a summary).
- Redacting PII or secrets before they reach the provider.
- Reshaping context for a specific model's strengths.
```typescript
api.registerMessageBuilder({
name: "summarize-middle-history",
build(messages) {
if (estimateTokens(messages) < THRESHOLD) return messages
return [...prefix, summary, ...recent]
},
})
```
Multiple builders run in registration order; the output of one is the input of the next.
When to use `beforeModel` instead: reach for the `beforeModel` hook only if you need the runtime snapshot or want to mutate the request object itself. Pure message rewrites belong in a builder.
## Automation Events
Plugins can declare normalized event types and emit them into Cline automation. Hosts that don't have automation enabled simply ignore both -- feature-detect `ctx.automation`.
```typescript
manifest: { capabilities: ["automationEvents"] },
setup(api, ctx) {
api.registerAutomationEventType({
eventType: "github.pull_request.opened",
source: "github",
description: "A new GitHub PR was opened",
attributesSchema: { /* JSON Schema for envelope.attributes */ },
})
if (!ctx.automation) return // host has no automation
ctx.automation.ingestEvent({
eventId: "pr-1234",
eventType: "github.pull_request.opened",
source: "github",
subject: "owner/repo#1234",
occurredAt: new Date().toISOString(),
attributes: { /* ... */ },
})
}
```
## Loading a Plugin
There are three ways a plugin gets into a session:
### Auto-Discovery (CLI)
The CLI scans these directories on startup:
- `<workspace>/.cline/plugins/` -- project-scoped plugins.
- `~/.cline/plugins/` -- user-scoped plugins.
Drop a `.ts` or `.js` file in, run `cline`, done:
```bash
mkdir -p .cline/plugins
cp my-plugin.ts .cline/plugins/
cline -i "do the thing my plugin enables"
```
### Explicit extensions in SDK Config
When you build your own host with `ClineCore`, pass the plugin object directly:
```typescript
import plugin from "./my-plugin"
import { ClineCore } from "@cline/core"
const host = await ClineCore.create({ backendMode: "local" })
await host.start({
config: {
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
apiKey: process.env.ANTHROPIC_API_KEY ?? "",
cwd: process.cwd(),
enableTools: true,
systemPrompt: "You are a helpful assistant.",
extensions: [plugin],
extensionContext: {
workspace: { rootPath: process.cwd(), cwd: process.cwd() },
},
},
prompt: "...",
interactive: false,
})
```
### pluginPaths for Directory-Based Plugins
When the plugin is a directory with `package.json`, point `pluginPaths` at the directory:
```typescript
config: {
pluginPaths: ["./path/to/my-plugin-package"],
}
```
Or install with the CLI:
```bash
cline plugin install ./path/to/my-plugin-package
cline plugin install @scope/my-cline-plugin # from npm
cline plugin install --git github.com/owner/repo # from git
```
## Single-File Plugin Template
Save as `my-plugin.ts`, drop in `.cline/plugins/`:
```typescript
import { type AgentPlugin, ClineCore, createTool } from "@cline/core"
let sessionRoot: string | undefined
const plugin: AgentPlugin = {
name: "my-plugin",
manifest: {
capabilities: ["tools", "hooks"],
},
setup(api, ctx) {
sessionRoot = ctx.workspaceInfo?.rootPath
api.registerTool(
createTool({
name: "do_thing",
description: "Do the thing this plugin exists for.",
inputSchema: {
type: "object",
properties: { target: { type: "string" } },
required: ["target"],
},
async execute(input) {
const { target } = input as { target: string }
return { ok: true, target, root: sessionRoot }
},
}),
)
},
hooks: {
beforeRun() {
console.log("[my-plugin] run started")
},
afterRun({ result }) {
if (result.status !== "completed") return
console.log(`[my-plugin] done in ${result.iterations} iteration(s)`)
},
},
}
async function runDemo(): Promise<void> {
const host = await ClineCore.create({ backendMode: "local" })
try {
const result = await host.start({
config: {
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
apiKey: process.env.ANTHROPIC_API_KEY ?? "",
cwd: process.cwd(),
enableTools: true,
systemPrompt: "You are a helpful assistant. Use tools when needed.",
extensions: [plugin],
extensionContext: {
workspace: { rootPath: process.cwd(), cwd: process.cwd() },
},
},
prompt: "Use do_thing on the target 'world'.",
interactive: false,
})
console.log(result.result?.text ?? "")
} finally {
await host.dispose()
}
}
if (import.meta.main) {
await runDemo()
}
export { plugin, runDemo }
export default plugin
```
Copy it, rename the tool, swap in your logic. The `runDemo()` function lets you test with `ANTHROPIC_API_KEY=sk-... bun run my-plugin.ts`.
## Plugin Package
Use a plugin package when you need npm dependencies, multiple entry points, bundled assets, or npm/git distribution.
### Layout
```
my-cline-plugin/
+-- package.json
+-- tsconfig.json (optional, for local typechecking)
+-- index.ts (the plugin entry point)
+-- README.md
+-- assets/ (optional, bundled content)
+-- templates/
+-- schemas/
```
### package.json -- The Discovery Contract
```json
{
"name": "my-cline-plugin",
"version": "0.1.0",
"private": true,
"description": "What this plugin does, in one sentence.",
"type": "module",
"exports": {
".": "./index.ts"
},
"cline": {
"plugins": [
{
"paths": ["./index.ts"],
"capabilities": ["tools", "hooks"]
}
]
},
"peerDependencies": {
"@cline/core": "*"
},
"peerDependenciesMeta": {
"@cline/core": { "optional": true }
},
"dependencies": {
"zod": "^4.1.5"
}
}
```
Key fields:
- `type: "module"` -- required. Cline plugins are ES modules.
- `cline.plugins` -- the discovery contract. Array of entries, each with `paths` (entry files) and `capabilities` (pre-declared, validated before importing).
- `peerDependencies` for `@cline/core` -- the host already provides it. Marking it optional lets you typecheck in isolation.
### Bundling Assets
Resolve asset paths with `import.meta.url`, not `process.cwd()`:
```typescript
import { dirname, join } from "node:path"
import { fileURLToPath } from "node:url"
import { readFileSync, existsSync } from "node:fs"
const MODULE_DIR = dirname(fileURLToPath(import.meta.url))
const TEMPLATES_DIR = join(MODULE_DIR, "assets", "templates")
function loadTemplate(name: string): string | undefined {
const path = join(TEMPLATES_DIR, `${name}.md`)
return existsSync(path) ? readFileSync(path, "utf8") : undefined
}
```
This is the only place `import.meta.url` is appropriate in a plugin -- locating files inside the plugin package. For workspace paths, always use `ctx.workspaceInfo?.rootPath`.
### The Override Pattern (Bundled / Global / Project)
A package can ship default assets and let users override them. The convention is a three-tier lookup, last write wins by `name`:
1. bundled -- files inside the plugin package (defaults shipped with the plugin).
2. global -- files under `~/.cline/data/settings/<kind>/` (user overrides).
3. project -- files under `<workspace>/.cline/<kind>/` (project overrides).
### Multiple Plugin Entries
If your package exposes more than one plugin, list each in `cline.plugins`:
```json
"cline": {
"plugins": [
{ "paths": ["./tools-plugin.ts"], "capabilities": ["tools"] },
{ "paths": ["./hooks-plugin.ts"], "capabilities": ["hooks"] }
]
}
```
Each entry file should `export default` its own plugin object.
## Testing Your Plugin
### Unit Tests
The plugin object is plain data. Drive `setup()` against a minimal context and exercise tools directly:
```typescript
import plugin from "../my-plugin"
const tools: unknown[] = []
const api = {
registerTool: (t: unknown) => tools.push(t),
registerCommand: () => {},
registerRule: () => {},
registerMessageBuilder: () => {},
registerProvider: () => {},
registerAutomationEventType: () => {},
}
await plugin.setup?.(api as never, {
workspaceInfo: { rootPath: "/tmp/fake-workspace" },
})
// Now `tools` contains the registered tools -- call tool.execute(input, ctx)
```
### End-to-End with runDemo()
Add a `runDemo()` in your plugin file (see the single-file template above) that boots a real `ClineCore` session:
```bash
ANTHROPIC_API_KEY=sk-... bun run my-plugin.ts
```
### CLI Smoke Test
```bash
mkdir -p .cline/plugins
cp my-plugin.ts .cline/plugins/
cline -i "trigger something that exercises the plugin"
```
For packages:
```bash
cline plugin install ./my-cline-plugin
cline -i "..."
```
If the plugin fails validation or setup, the CLI prints a clear error and continues without it.
## Common Gotchas
- "capabilities must be a non-empty array" -- you forgot `manifest.capabilities`, or it's `[]`.
- "registerRule requires the 'rules' capability" -- capability/handler drift. Add `"rules"` to capabilities, or stop calling `registerRule`.
- Tool not visible to the model -- check `enableTools: true` on the session config, and that you're declaring `"tools"` in capabilities.
- `ctx.workspaceInfo` is undefined in SDK tests -- the host didn't pass `extensionContext.workspace`. In SDK code, set it explicitly (see the ClineCore loading example above).
- State leaking across sessions -- module-level variables are shared across sessions in the same process. Key by `ctx.session?.sessionId` if your host runs multiple sessions concurrently.
- `afterRun` firing on aborts -- guard with `if (result.status !== "completed") return`.
- Heavy work in `setup()` -- `setup()` blocks session start. Defer expensive work into the first tool call or `beforeRun`.
- Importing host internals -- only import from `@cline/core`. Reaching into host-specific packages (e.g. CLI internals) will break in non-CLI hosts.
- Sandboxed plugins and `telemetry` -- telemetry is process-local. Feature-detect `ctx.telemetry` and expect it to be undefined in sandboxed plugin processes.
- Resolving bundled assets -- use `import.meta.url` + `fileURLToPath` to find files inside your package; never `process.cwd()`. For workspace paths, do the opposite: use `ctx.workspaceInfo?.rootPath`, never `import.meta.url`.
- Plugin name collisions -- `name` must be unique within a session. If two plugins share a name, validation fails. Namespace by package (`my-org-redactor`, not `redactor`).
## Decision Guide -- Which Extension Point?
| You want to... | Use |
|----------------|-----|
| Give the model a new capability | `registerTool` |
| Add a slash command in chat surfaces | `registerCommand` |
| Inject text into the system prompt | `registerRule` |
| Rewrite messages before they hit the provider | `registerMessageBuilder` |
| Add a custom model provider | `registerProvider` |
| Emit normalized cron/webhook events | `registerAutomationEventType` + `ctx.automation` |
| Observe or steer the agent loop | `hooks.*` |
| Block a dangerous tool call | `hooks.beforeTool` returning `{ stop: true }` |
| Notify on completion | `hooks.afterRun` (gate on `status === "completed"`) |
| Tweak each model request | `hooks.beforeModel` |
| Stream events to a UI | `hooks.onEvent` |
| Ship reusable templates with the plugin | Bundle assets next to `index.ts`, resolve via `import.meta.url` |
| Let users override defaults globally or per-project | Three-tier lookup: bundled / global / project |
## Pre-Ship Checklist
- `manifest.capabilities` is a non-empty array.
- Every `api.register*` call has a matching capability declared.
- If `hooks` is present, `"hooks"` is in `capabilities`.
- `ctx.workspaceInfo?.rootPath` is used for workspace paths (not `process.cwd()`).
- Optional `ctx` fields are feature-detected.
- Tool names are snake_case verbs; descriptions are written for the model.
- Tool inputs have JSON Schema with `required` set.
- `afterRun` handlers gate on `result.status === "completed"` if they only want successes.
- State that must not leak between concurrent sessions is keyed by `ctx.session?.sessionId`.
- (Package) `package.json` has `type: "module"`, `cline.plugins`, and `@cline/core` as an optional peer dep.
- (Package) Bundled assets resolved via `import.meta.url`, not `process.cwd()`.
- Smoke test: drop the plugin into `.cline/plugins/` (or `cline plugin install`), run `cline -i "..."`, watch it work.
## Plugin Examples from SDK
The SDK repo includes these example plugins:
| Plugin | Description |
|--------|-------------|
| `weather-metrics.ts` | Tool registration + lifecycle metrics |
| `mac-notify.ts` | macOS Notification Center alerts |
| `custom-compaction.ts` | Custom message compaction via message builders |
| `background-terminal.ts` | Detached shell job management |
| `automation-events.ts` | Plugin-emitted automation events |
| `gitignore-read-files-guard.ts` | File access policy enforcement via beforeTool |
| `web-search.ts` | Web search via Exa API |
| `typescript-lsp/` | TypeScript Language Service tools (plugin package) |
| `agents-squad/` | Multi-agent team orchestration (plugin package) |
## See Also
- `../tools/REFERENCE.md` - Tool creation
- `../events/REFERENCE.md` - Event system
- `../agent/REFERENCE.md` - Using plugins with Agent
- `../clinecore/REFERENCE.md` - Using plugins with ClineCore
@@ -1,253 +0,0 @@
# Going to Production
Guidelines for deploying Cline SDK agents in production environments.
## Error Handling
Always check the result status:
```typescript
const result = await agent.run(input)
switch (result.status) {
case "completed":
console.log("Success:", result.outputText)
break
case "aborted":
console.log("Cancelled:", result.error?.message)
break
case "failed":
console.error("Failed:", result.error)
break
}
```
For ClineCore, check `finishReason`:
```typescript
const session = await cline.start({ ... })
switch (session.result?.finishReason) {
case "completed":
// normal completion
break
case "max_iterations":
// agent hit iteration limit
break
case "aborted":
// manually cancelled
break
case "mistake_limit":
// too many tool errors
break
case "error":
// unrecoverable error
break
}
```
## Cost Control
### Token Limits
Set maximum tokens per turn and iteration limits:
```typescript
const agent = new Agent({
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
maxTokensPerTurn: 4096,
maxIterations: 10,
tools: [...],
})
```
### Model Selection
Use cheaper models for simple tasks:
```typescript
// Simple classification or formatting
{ providerId: "anthropic", modelId: "claude-haiku-4-5" }
// Complex reasoning and code generation
{ providerId: "anthropic", modelId: "claude-sonnet-4-6" }
// Hardest tasks requiring deep reasoning
{ providerId: "anthropic", modelId: "claude-opus-4-7" }
```
### Usage Tracking
Monitor spending in real time:
```typescript
agent.subscribe((event) => {
if (event.type === "usage-updated" && event.usage.totalCost) {
if (event.usage.totalCost > MAX_BUDGET) {
agent.abort("Budget exceeded")
}
}
})
```
## Observability
### OpenTelemetry Integration
The SDK supports OpenTelemetry for traces, metrics, and logs:
```typescript
import { ClineCore } from "@cline/sdk"
const cline = await ClineCore.create({
clientName: "my-app",
// OpenTelemetry config is picked up from environment
// OTEL_EXPORTER_OTLP_ENDPOINT, OTEL_SERVICE_NAME, etc.
})
```
### Structured Logging
Use the `BasicLogger` interface for injectable logging:
```typescript
import type { BasicLogger } from "@cline/sdk"
const logger: BasicLogger = {
debug: (msg, meta) => console.debug(msg, meta),
log: (msg, meta) => console.log(msg, meta),
error: (msg, meta) => console.error(msg, meta),
}
await cline.start({
config: {
logger,
// ...
},
})
```
### Custom Metrics via Plugins
```typescript
const metricsPlugin: AgentPlugin = {
name: "metrics",
manifest: { capabilities: ["hooks"] },
setup() {},
hooks: {
beforeRun() {
metrics.increment("agent.runs.started")
},
afterRun({ result }) {
metrics.increment("agent.runs.completed")
metrics.histogram("agent.iterations", result.iterations)
metrics.histogram("agent.tokens.output", result.usage.outputTokens)
},
beforeTool({ toolCall }) {
metrics.increment(`agent.tools.${toolCall.toolName}`)
},
},
}
```
## Security
### Sandbox Tool Execution
Validate tool inputs to prevent path traversal and injection:
```typescript
execute: async (input) => {
const safePath = path.resolve(WORKSPACE_ROOT, input.path)
if (!safePath.startsWith(WORKSPACE_ROOT)) {
return { error: "Path traversal attempt blocked" }
}
return await readFile(safePath, "utf-8")
}
```
### API Key Management
- Use environment variables, never hardcode keys
- Rotate keys regularly
- Use different keys for development and production
```typescript
{
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
apiKey: process.env.ANTHROPIC_API_KEY, // never a literal string
}
```
### Tool Policy Hardening
Disable tools you don't need and require approval for dangerous ones:
```typescript
toolPolicies: {
read_files: { autoApprove: true },
search: { autoApprove: true },
bash: { autoApprove: false }, // require approval
editor: { autoApprove: false },
apply_patch: { autoApprove: false },
fetch_web: { enabled: false }, // disable entirely
}
```
## Deployment Patterns
### Stateless Worker
For request/response workloads (API endpoints, queue consumers):
```typescript
const cline = await ClineCore.create({
clientName: "worker",
backendMode: "local",
})
app.post("/agent", async (req, res) => {
const session = await cline.start({
prompt: req.body.prompt,
config: { ... },
})
res.json({ text: session.result?.text, usage: session.result?.usage })
})
```
### Persistent Service
For long-running services with session management:
```typescript
const cline = await ClineCore.create({
clientName: "service",
backendMode: "hub",
})
process.on("SIGTERM", async () => {
await cline.dispose("SIGTERM")
process.exit(0)
})
```
### Scheduled Automation
See `../scheduling/REFERENCE.md` for recurring agent tasks.
## Retry and Resilience
- Tool `execute` functions support `retryable: true` (default) and `maxRetries: 3` (default)
- Provider API calls are retried automatically on transient failures
- Use `timeoutMs` on tools to prevent hanging
- Monitor `mistake_limit` finish reason to detect systematic tool failures
## See Also
- `../agent/REFERENCE.md` - Agent overview
- `../clinecore/REFERENCE.md` - ClineCore overview
- `../tools/REFERENCE.md` - Tool configuration
- `../plugins/REFERENCE.md` - Metrics plugins
- `../scheduling/REFERENCE.md` - Scheduled agents
@@ -1,257 +0,0 @@
# Model Providers
The Cline SDK supports every major LLM provider out of the box via `@cline/llms`.
## Supported Providers
| Provider ID | Models |
|-------------|--------|
| `"anthropic"` | Claude Opus 4.7, Sonnet 4.6, Haiku 4.5 |
| `"openai"` | GPT-5.5, GPT-5.3 Codex |
| `"gemini"` | Gemini 3.1 Pro Preview, Gemini 3 Flash Preview |
| `"vertex"` | Google models via Vertex AI |
| `"bedrock"` | Claude, Llama via AWS Bedrock |
| `"mistral"` | Mistral Large, Codestral |
| `"openai-compatible"` | vLLM, Together, Fireworks, Groq, etc. |
## Basic Configuration
### With Agent
```typescript
import { Agent } from "@cline/sdk"
const agent = new Agent({
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
apiKey: process.env.ANTHROPIC_API_KEY,
systemPrompt: "You are a helpful assistant.",
tools: [],
})
```
### With ClineCore
```typescript
import { ClineCore } from "@cline/sdk"
const cline = await ClineCore.create({ clientName: "my-app" })
await cline.start({
prompt: "Hello",
config: {
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
apiKey: process.env.ANTHROPIC_API_KEY,
},
})
```
## Provider-Specific Configuration
### Anthropic
```typescript
{
providerId: "anthropic",
modelId: "claude-opus-4-7", // or "claude-sonnet-4-6", "claude-haiku-4-5"
apiKey: process.env.ANTHROPIC_API_KEY,
}
```
### OpenAI
```typescript
{
providerId: "openai",
modelId: "gpt-5.5",
apiKey: process.env.OPENAI_API_KEY,
}
```
### Google (Gemini)
```typescript
{
providerId: "gemini",
modelId: "gemini-3.1-pro-preview",
apiKey: process.env.GOOGLE_API_KEY,
}
```
### Google (Vertex AI)
```typescript
{
providerId: "vertex",
modelId: "gemini-3.1-pro-preview",
// Uses application default credentials or service account
}
```
### AWS Bedrock
```typescript
{
providerId: "bedrock",
modelId: "anthropic.claude-sonnet-4-6",
// Uses AWS credential chain (env vars, config file, IAM role)
// Set AWS_REGION, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY
}
```
### Mistral
```typescript
{
providerId: "mistral",
modelId: "mistral-large-latest",
apiKey: process.env.MISTRAL_API_KEY,
}
```
### OpenAI-Compatible
For any provider with an OpenAI-compatible API:
```typescript
{
providerId: "openai-compatible",
modelId: "my-model",
apiKey: process.env.API_KEY,
baseUrl: "https://api.together.xyz/v1",
}
```
Works with: vLLM, Together AI, Fireworks, Groq, Ollama, LiteLLM, etc.
## Custom Base URL
Override the API endpoint for any provider:
```typescript
{
providerId: "anthropic",
modelId: "claude-sonnet-4-6",
apiKey: process.env.API_KEY,
baseUrl: "https://my-proxy.example.com/v1",
}
```
## Custom Headers
Pass additional headers to API requests:
```typescript
{
providerId: "openai",
modelId: "gpt-5.5",
apiKey: process.env.API_KEY,
headers: {
"X-Custom-Header": "value",
},
}
```
## Gateway API
For advanced multi-provider setups, use the Gateway directly:
```typescript
import { createGateway, DefaultGateway } from "@cline/llms"
const gateway = createGateway({
providerConfigs: [
{ providerId: "anthropic", apiKey: process.env.ANTHROPIC_API_KEY },
{ providerId: "openai", apiKey: process.env.OPENAI_API_KEY },
],
})
// Create a model for a specific provider
const model = gateway.createAgentModel({
providerId: "anthropic",
modelId: "claude-opus-4-7",
})
// Use with Agent
const agent = new Agent({ model, systemPrompt: "...", tools: [] })
```
### Gateway Methods
```typescript
gateway.registerProvider(registration) // add a custom provider
gateway.configureProvider(config) // update provider settings
gateway.listProviders() // list available providers
gateway.listModels(providerId?) // list available models
gateway.createAgentModel(selection) // create model for agent
gateway.stream(request) // raw streaming (AsyncIterable)
```
## Provider Registry
Query and register providers programmatically:
```typescript
import {
getAllProviders,
getProviderIds,
getProvider,
getModelsForProvider,
registerProvider,
registerModel,
createHandler,
} from "@cline/llms"
// List all registered providers
const providers = getAllProviders()
// Get models for a provider
const models = getModelsForProvider("anthropic")
// Register a custom provider
registerProvider({
id: "my-provider",
name: "My Custom Provider",
handler: createHandler({ ... }),
})
```
## Model Metadata
Access model info (context window, pricing, capabilities):
```typescript
import { getModelsForProvider } from "@cline/llms"
const models = getModelsForProvider("anthropic")
for (const model of models) {
console.log(`${model.id}: context=${model.contextWindow}, input=$${model.inputPrice}/MTok`)
}
```
## Cost Tracking
Track per-request and cumulative costs:
```typescript
// Via events
agent.subscribe((event) => {
if (event.type === "usage-updated") {
console.log(`Cost: $${event.usage.totalCost?.toFixed(4)}`)
}
})
// Via result
const result = await agent.run("...")
console.log(`Total cost: $${result.usage.totalCost?.toFixed(4)}`)
// Via ClineCore accumulated usage
const usage = await cline.getAccumulatedUsage(sessionId)
```
## See Also
- `../agent/REFERENCE.md` - Using providers with Agent
- `../clinecore/REFERENCE.md` - Using providers with ClineCore
- `../production/REFERENCE.md` - Cost control in production
@@ -1,227 +0,0 @@
# Scheduling and Automation
The Cline SDK supports scheduled, one-off, and event-driven agent execution through the automation subsystem in `@cline/core`.
## Overview
Three trigger types:
| Trigger | Description |
|---------|-------------|
| `schedule` | Recurring jobs via cron expressions |
| `one_off` | Single execution tasks |
| `event` | Triggered by external events (GitHub, Linear, custom) |
## CLI Schedule Management
```bash
# Create a recurring schedule
cline schedule create "Daily standup" \
--cron "0 9 * * MON-FRI" \
--prompt "Summarize open PRs and blockers" \
--workspace /path/to/project \
--model anthropic/claude-sonnet-4-6
# List schedules
cline schedule list
# Trigger a schedule immediately
cline schedule trigger <schedule-id>
# Pause/resume
cline schedule pause <schedule-id>
cline schedule resume <schedule-id>
# Delete
cline schedule delete <schedule-id>
# View past executions
cline schedule executions <schedule-id>
```
## Cron Expressions
| Expression | Meaning |
|-----------|---------|
| `0 9 * * MON-FRI` | 9 AM weekdays |
| `0 */6 * * *` | Every 6 hours |
| `0 8 * * MON` | Mondays at 8 AM |
| `*/30 * * * *` | Every 30 minutes |
| `0 0 1 * *` | First of every month |
## File-Based Specs
Create Markdown files in `~/.cline/cron/` (global) or `.cline/cron/` (workspace):
### Recurring Schedule
```markdown
---
trigger: schedule
schedule: "0 9 * * MON-FRI"
timezone: America/New_York
mode: exclusive
prompt: "Check for dependency updates and create PRs for any outdated packages."
modelSelection:
providerId: anthropic
modelId: claude-sonnet-4-6
tools:
enabled: true
---
Additional context or instructions for the agent go in the body.
```
### One-Off Task
```markdown
---
trigger: one_off
prompt: "Generate a comprehensive test coverage report."
modelSelection:
providerId: anthropic
modelId: claude-sonnet-4-6
---
```
### Event-Driven
```markdown
---
trigger: event
eventType: github.pull_request.opened
filters:
repository: myorg/myrepo
debounceMs: 5000
cooldownMs: 60000
prompt: "Review the PR for security issues and code quality."
modelSelection:
providerId: anthropic
modelId: claude-sonnet-4-6
---
```
## CronSpec Types
```typescript
interface CronScheduleSpec {
trigger: "schedule"
schedule: string // cron expression
timezone?: string
mode?: "exclusive" | "concurrent"
prompt: string
modelSelection?: { providerId: string; modelId?: string }
extensionLoading?: "isolated" | "direct"
configExtensions?: RuntimeConfigExtensionKind[]
tools?: { enabled?: boolean; names?: string[] }
}
interface CronOneOffSpec {
trigger: "one_off"
prompt: string
modelSelection?: { providerId: string; modelId?: string }
}
interface CronEventSpec {
trigger: "event"
eventType: string // e.g., "github.pull_request.opened"
filters?: Record<string, unknown>
debounceMs?: number
cooldownMs?: number
prompt: string
modelSelection?: { providerId: string; modelId?: string }
}
```
## Programmatic Automation API
```typescript
const cline = await ClineCore.create({
clientName: "my-app",
automation: true,
})
// Start automation service
cline.automation.start()
// Ingest an external event
cline.automation.ingestEvent({
eventId: "evt-123",
eventType: "github.pull_request.opened",
source: "github",
timestamp: Date.now(),
payload: { pr: { number: 42, title: "..." } },
})
// List specs, runs, events
const specs = await cline.automation.listSpecs()
const runs = await cline.automation.listRuns()
const events = await cline.automation.listEvents()
// Reconcile specs from directory
await cline.automation.reconcile(specDirectory)
// Stop automation
cline.automation.stop()
```
## Event Ingestion from Plugins
Plugins can declare and emit automation events:
```typescript
const webhookPlugin: AgentPlugin = {
name: "webhook-events",
manifest: { capabilities: ["automationEvents"] },
setup(api) {
api.registerAutomationEventType({
type: "webhook.received",
description: "External webhook received",
})
},
}
```
Submit events via the plugin context:
```typescript
ctx.automation.ingestEvent({
eventId: "evt-456",
eventType: "webhook.received",
source: "custom",
timestamp: Date.now(),
payload: { ... },
})
```
## Concurrency Control
| Mode | Behavior |
|------|----------|
| `"exclusive"` | Skip if previous run still active |
| `"concurrent"` | Allow overlapping runs |
## Run Reports
Each completed run writes a Markdown report to `.cline/cron/reports/<run-id>.md` with:
- Run metadata (spec, trigger, timing)
- Summary of agent output
- Usage (tokens, cost)
- Tool calls made
- Trigger event context (for event-driven runs)
## Use Cases
- Daily standup summaries
- Automated dependency update checks
- PR review on open
- Codebase health reports
- Scheduled security scans
- Event-driven CI/CD workflows
## See Also
- `../clinecore/REFERENCE.md` - ClineCore runtime
- `../clinecore/api.md` - Automation API details
- `../plugins/REFERENCE.md` - Plugin events
- `../production/REFERENCE.md` - Production deployment
@@ -1,259 +0,0 @@
# Tools
Tools are how agents interact with the world. The Cline SDK supports both built-in tools (via ClineCore) and custom tools you define yourself.
## Creating Custom Tools
Use `createTool()` from `@cline/sdk` (or `@cline/shared`):
```typescript
import { createTool } from "@cline/sdk"
const myTool = createTool({
name: "search_issues",
description: "Search GitHub issues by query. Returns up to 10 results.",
inputSchema: {
type: "object",
properties: {
query: { type: "string", description: "Search query" },
state: { type: "string", enum: ["open", "closed", "all"] },
},
required: ["query"],
},
execute: async (input) => {
const issues = await github.searchIssues(input.query, input.state)
return { issues, count: issues.length }
},
})
```
### With Zod Schema
```typescript
import { createTool } from "@cline/sdk"
import { z } from "zod"
const deployTool = createTool({
name: "deploy",
description: "Deploy the app to the specified environment.",
inputSchema: z.object({
environment: z.enum(["staging", "production"]).describe("Target environment"),
version: z.string().optional().describe("Version tag, defaults to latest"),
}),
execute: async (input) => {
const result = await deploy(input.environment, input.version)
return { url: result.url, status: "deployed" }
},
})
```
### Tool Config Options
```typescript
createTool({
name: string, // snake_case, unique per agent
description: string, // what the tool does (model reads this)
inputSchema: JSONSchema | ZodSchema, // input validation
execute: async (input, context, onChange?) => output,
timeoutMs?: number, // default: 30000
retryable?: boolean, // default: true
maxRetries?: number, // default: 3
lifecycle?: {
completesRun?: boolean // true = ends agent loop on success
},
})
```
### AgentToolContext
The second argument to `execute` provides runtime context:
```typescript
interface AgentToolContext {
agentId: string
conversationId: string
iteration: number
abortSignal?: AbortSignal
metadata?: Record<string, unknown>
}
```
## Tool Naming Rules
- Names must be `snake_case` (e.g., `search_issues`, `deploy_app`)
- Names must be unique within a single agent's tool set
- Choose descriptive names since the model uses them to decide which tool to call
## Tool Descriptions Matter
The model reads the tool description to decide when and how to use it. Write clear, specific descriptions:
```typescript
// Bad: vague
description: "Does deployment stuff"
// Good: specific with constraints
description: "Deploy the application to staging or production. " +
"Staging deployments are immediate. Production requires a passing CI build. " +
"Returns the deployment URL and status."
```
Include constraints, rate limits, and expected behavior in the description.
## Error Handling in Tools
Return errors as structured data instead of throwing:
```typescript
// Good: return error data
execute: async (input) => {
const file = await readFile(input.path).catch(() => null)
if (!file) {
return { error: "File not found", path: input.path }
}
return { content: file }
}
```
Thrown exceptions count as "mistakes" against the agent's mistake limit. Returned error data lets the agent adjust its approach.
## Completion Tools
Tools with `lifecycle: { completesRun: true }` end the agent loop when they execute successfully:
```typescript
const submitAnswer = createTool({
name: "submit_answer",
description: "Submit the final answer and end the task.",
inputSchema: z.object({
answer: z.string(),
confidence: z.number().min(0).max(1),
}),
lifecycle: { completesRun: true },
execute: async (input) => input,
})
```
The model sees the tool result and the run ends. Access the output via `result.toolCalls`.
## Built-in Tools (ClineCore Only)
When using `ClineCore` with `enableTools: true`, these tools are available automatically:
| Tool | Name | What It Does |
|------|------|-------------|
| Shell | `bash` | Execute shell commands in the session workspace |
| Editor | `editor` | Create and edit files |
| Read | `read_files` | Read file contents |
| Patch | `apply_patch` | Apply unified diffs to files |
| Search | `search` | Search file contents and directory structure |
| Web | `fetch_web` | Fetch web content via HTTP |
Built-in tools respect the `cwd` setting in `CoreSessionConfig`.
## Tool Policies
Control which tools are available and whether they require approval:
```typescript
// In Agent config
const agent = new Agent({
tools: [toolA, toolB, toolC],
toolPolicies: {
tool_a: { autoApprove: true }, // runs without asking
tool_b: { autoApprove: false }, // requires approval
tool_c: { enabled: false }, // hidden from model
},
})
// In ClineCore session
await cline.start({
prompt: "...",
config: { ... },
toolPolicies: {
bash: { autoApprove: true },
editor: { autoApprove: false },
},
})
```
### Policy Options
| Policy | Effect |
|--------|--------|
| `{ autoApprove: true }` | Tool runs without approval |
| `{ autoApprove: false }` | Triggers approval callback before running |
| `{ enabled: false }` | Tool is hidden from the model entirely |
| No policy set | Defaults to enabled and auto-approved |
## Abort Signal in Long-Running Tools
Respect the abort signal for tools that take a long time:
```typescript
execute: async (input, context) => {
const results = []
for (const item of input.items) {
if (context.abortSignal?.aborted) {
return { results, aborted: true, processed: results.length }
}
results.push(await processItem(item))
}
return { results, processed: results.length }
}
```
## Streaming Tool Output
Use the `onChange` callback (third argument) to stream partial results:
```typescript
execute: async (input, context, onChange) => {
let progress = 0
for (const step of steps) {
progress++
onChange?.(`Processing step ${progress}/${steps.length}...`)
await processStep(step)
}
return { completed: true }
}
```
## Testing Tools
Tools are plain async functions, so they're straightforward to test:
```typescript
import { describe, it, expect } from "vitest"
describe("deploy tool", () => {
it("deploys to staging", async () => {
const context = { agentId: "test", conversationId: "test", iteration: 1 }
const result = await deployTool.execute({ environment: "staging" }, context)
expect(result.status).toBe("deployed")
})
})
```
## MCP Tool Integration
ClineCore can connect to MCP (Model Context Protocol) servers for additional tools. Configure in `.cline/mcp-servers.json`:
```json
{
"servers": {
"my-server": {
"command": "node",
"args": ["./mcp-server.js"]
}
}
}
```
MCP tools appear alongside built-in and custom tools automatically.
## See Also
- `../agent/REFERENCE.md` - Using tools with Agent
- `../clinecore/REFERENCE.md` - Using tools with ClineCore
- `../plugins/REFERENCE.md` - Packaging tools as plugins
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---
name: create-pull-request
description: Create a GitHub pull request following project conventions. Use when the user asks to create a PR, submit changes for review, or open a pull request. Handles commit analysis, branch management, PR template usage, and PR creation using the gh CLI tool.
---
# Create Pull Request
This skill guides you through creating a well-structured GitHub pull request that follows project conventions and best practices.
## Prerequisites Check
Before proceeding, verify the following:
### 1. Check if `gh` CLI is installed
```bash
gh --version
```
If not installed, inform the user:
> The GitHub CLI (`gh`) is required but not installed. Please install it:
> - macOS: `brew install gh`
> - Other: https://cli.github.com/
### 2. Check if authenticated with GitHub
```bash
gh auth status
```
If not authenticated, guide the user to run `gh auth login`.
### 3. Verify clean working directory
```bash
git status
```
If there are uncommitted changes, ask the user whether to:
- Commit them as part of this PR
- Stash them temporarily
- Discard them (with caution)
## Gather Context
### 1. Identify the current branch
```bash
git branch --show-current
```
Ensure you're not on `main` or `master`. If so, ask the user to create or switch to a feature branch.
### 2. Find the base branch
```bash
git remote show origin | grep "HEAD branch"
```
This is typically `main` or `master`.
### 3. Analyze recent commits relevant to this PR
```bash
git log origin/main..HEAD --oneline --no-decorate
```
Review these commits to understand:
- What changes are being introduced
- The scope of the PR (single feature/fix or multiple changes)
- Whether commits should be squashed or reorganized
### 4. Review the diff
```bash
git diff origin/main..HEAD --stat
```
This shows which files changed and helps identify the type of change.
## Information Gathering
Before creating the PR, you need the following information. Check if it can be inferred from:
- Commit messages
- Branch name (e.g., `fix/issue-123`, `feature/new-login`)
- Changed files and their content
If any critical information is missing, use `ask_followup_question` to ask the user:
### Required Information
1. **Related Issue Number**: Look for patterns like `#123`, `fixes #123`, or `closes #123` in commit messages
2. **Description**: What problem does this solve? Why were these changes made?
3. **Type of Change**: Bug fix, new feature, breaking change, refactor, cosmetic, documentation, or workflow
4. **Test Procedure**: How was this tested? What could break?
### Example clarifying question
If the issue number is not found:
> I couldn't find a related issue number in the commit messages or branch name. What GitHub issue does this PR address? (Enter the issue number, e.g., "123" or "N/A" for small fixes)
## Git Best Practices
Before creating the PR, consider these best practices:
### Commit Hygiene
1. **Atomic commits**: Each commit should represent a single logical change
2. **Clear commit messages**: Follow conventional commit format when possible
3. **No merge commits**: Prefer rebasing over merging to keep history clean
### Branch Management
1. **Rebase on latest main** (if needed):
```bash
git fetch origin
git rebase origin/main
```
2. **Squash if appropriate**: If there are many small "WIP" commits, consider interactive rebase:
```bash
git rebase -i origin/main
```
Only suggest this if commits appear messy and the user is comfortable with rebasing.
### Push Changes
Ensure all commits are pushed:
```bash
git push origin HEAD
```
If the branch was rebased, you may need:
```bash
git push origin HEAD --force-with-lease
```
## Create the Pull Request
**IMPORTANT**: Read and use the PR template at `.github/pull_request_template.md`. The PR body format must **strictly match** the template structure. Do not deviate from the template format.
When filling out the template:
- Replace `#XXXX` with the actual issue number, or keep as `#XXXX` if no issue exists (for small fixes)
- Fill in all sections with relevant information gathered from commits and context
- Mark the appropriate "Type of Change" checkbox(es)
- Complete the "Pre-flight Checklist" items that apply
### Create PR with gh CLI
**Use a temporary file for the PR body** to avoid shell escaping issues, newline problems, and other command-line flakiness:
1. Write the PR body to a temporary file:
```
/tmp/pr-body.md
```
2. Create the PR using the file:
```bash
gh pr create --title "PR_TITLE" --body-file /tmp/pr-body.md --base main
```
3. Clean up the temporary file:
```bash
rm /tmp/pr-body.md
```
For draft PRs:
```bash
gh pr create --title "PR_TITLE" --body-file /tmp/pr-body.md --base main --draft
```
**Why use a file?** Passing complex markdown with newlines, special characters, and checkboxes directly via `--body` is error-prone. The `--body-file` flag handles all content reliably.
## Post-Creation
After creating the PR:
1. **Display the PR URL** so the user can review it
2. **Remind about CI checks**: Tests and linting will run automatically
3. **Suggest next steps**:
- Add reviewers if needed: `gh pr edit --add-reviewer USERNAME`
- Add labels if needed: `gh pr edit --add-label "bug"`
## Error Handling
### Common Issues
1. **No commits ahead of main**: The branch has no changes to submit
- Ask if the user meant to work on a different branch
2. **Branch not pushed**: Remote doesn't have the branch
- Push the branch first: `git push -u origin HEAD`
3. **PR already exists**: A PR for this branch already exists
- Show the existing PR: `gh pr view`
- Ask if they want to update it instead
4. **Merge conflicts**: Branch conflicts with base
- Guide user through resolving conflicts or rebasing
## Summary Checklist
Before finalizing, ensure:
- [ ] `gh` CLI is installed and authenticated
- [ ] Working directory is clean
- [ ] All commits are pushed
- [ ] Branch is up-to-date with base branch
- [ ] Related issue number is identified, or placeholder is used
- [ ] PR description follows the template exactly
- [ ] Appropriate type of change is selected
- [ ] Pre-flight checklist items are addressed
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@@ -1,200 +0,0 @@
---
name: opentui
description: Comprehensive OpenTUI skill for building terminal user interfaces. Covers the core imperative API, React reconciler, and Solid reconciler. Use for any TUI development task including components, layout, keyboard handling, animations, and testing.
metadata:
references: core, react, solid
---
# OpenTUI Platform Skill
Consolidated skill for building terminal user interfaces with OpenTUI. Use decision trees below to find the right framework and components, then load detailed references.
## Critical Rules
**Follow these rules in all OpenTUI code:**
1. **Use `create-tui` for new projects.** See framework `REFERENCE.md` quick starts.
2. **`create-tui` options must come before arguments.** `bunx create-tui -t react my-app` works, `bunx create-tui my-app -t react` does NOT.
3. **Never call `process.exit()` directly.** Use `renderer.destroy()` (see `core/gotchas.md`).
4. **Text styling requires nested tags in React/Solid.** Use modifier elements, not props (see `components/text-display.md`).
## How to Use This Skill
### Reference File Structure
Framework references follow a 5-file pattern. Cross-cutting concepts are single-file guides.
Each framework in `./references/<framework>/` contains:
| File | Purpose | When to Read |
|------|---------|--------------|
| `REFERENCE.md` | Overview, when to use, quick start | **Always read first** |
| `api.md` | Runtime API, components, hooks | Writing code |
| `configuration.md` | Setup, tsconfig, bundling | Configuring a project |
| `patterns.md` | Common patterns, best practices | Implementation guidance |
| `gotchas.md` | Pitfalls, limitations, debugging | Troubleshooting |
Cross-cutting concepts in `./references/<concept>/` have `REFERENCE.md` as the entry point.
### Reading Order
1. Start with `REFERENCE.md` for your chosen framework
2. Then read additional files relevant to your task:
- Building components -> `api.md` + `components/<category>.md`
- Setting up project -> `configuration.md`
- Layout/positioning -> `layout/REFERENCE.md`
- Keyboard/input handling -> `keyboard/REFERENCE.md`
- Animations -> `animation/REFERENCE.md`
- Troubleshooting -> `gotchas.md` + `testing/REFERENCE.md`
### Example Paths
```
./references/react/REFERENCE.md # Start here for React
./references/react/api.md # React components and hooks
./references/solid/configuration.md # Solid project setup
./references/components/inputs.md # Input, Textarea, Select docs
./references/core/gotchas.md # Core debugging tips
```
### Runtime Notes
OpenTUI runs on Bun and uses Zig for native builds. Read `./references/core/gotchas.md` for runtime requirements and build guidance.
## Quick Decision Trees
### "Which framework should I use?"
```
Which framework?
├─ I want full control, maximum performance, no framework overhead
│ └─ core/ (imperative API)
├─ I know React, want familiar component patterns
│ └─ react/ (React reconciler)
├─ I want fine-grained reactivity, optimal re-renders
│ └─ solid/ (Solid reconciler)
└─ I'm building a library/framework on top of OpenTUI
└─ core/ (imperative API)
```
### "I need to display content"
```
Display content?
├─ Plain or styled text -> components/text-display.md
├─ Container with borders/background -> components/containers.md
├─ Scrollable content area -> components/containers.md (scrollbox)
├─ ASCII art banner/title -> components/text-display.md (ascii-font)
├─ Data table with borders/wrapping -> components/code-diff.md (TextTable)
├─ Code with syntax highlighting -> components/code-diff.md
├─ Diff viewer (unified/split) -> components/code-diff.md
├─ Line numbers with diagnostics -> components/code-diff.md
└─ Markdown content (streaming) -> components/code-diff.md (markdown)
```
### "I need user input"
```
User input?
├─ Single-line text field -> components/inputs.md (input)
├─ Multi-line text editor -> components/inputs.md (textarea)
├─ Select from a list (vertical) -> components/inputs.md (select)
├─ Tab-based selection (horizontal) -> components/inputs.md (tab-select)
└─ Custom keyboard shortcuts -> keyboard/REFERENCE.md
```
### "I need layout/positioning"
```
Layout?
├─ Flexbox-style layouts (row, column, wrap) -> layout/REFERENCE.md
├─ Absolute positioning -> layout/patterns.md
├─ Responsive to terminal size -> layout/patterns.md
├─ Centering content -> layout/patterns.md
└─ Complex nested layouts -> layout/patterns.md
```
### "I need animations"
```
Animations?
├─ Timeline-based animations -> animation/REFERENCE.md
├─ Easing functions -> animation/REFERENCE.md
├─ Property transitions -> animation/REFERENCE.md
└─ Looping animations -> animation/REFERENCE.md
```
### "I need to handle input"
```
Input handling?
├─ Keyboard events (keypress, release) -> keyboard/REFERENCE.md
├─ Focus management -> keyboard/REFERENCE.md
├─ Paste events -> keyboard/REFERENCE.md
├─ Mouse events -> components/containers.md
├─ Text selection & copy-on-select -> keyboard/REFERENCE.md (selection)
└─ Clipboard (OSC 52) -> keyboard/REFERENCE.md (clipboard)
```
### "I need to test my TUI"
```
Testing?
├─ Snapshot testing -> testing/REFERENCE.md
├─ Interaction testing -> testing/REFERENCE.md
├─ Test renderer setup -> testing/REFERENCE.md
└─ Debugging tests -> testing/REFERENCE.md
```
### "I need to debug/troubleshoot"
```
Troubleshooting?
├─ Runtime errors, crashes -> <framework>/gotchas.md
├─ Layout issues -> layout/REFERENCE.md + layout/patterns.md
├─ Input/focus issues -> keyboard/REFERENCE.md
└─ Repro + regression tests -> testing/REFERENCE.md
```
### Troubleshooting Index
- Terminal cleanup, crashes -> `core/gotchas.md`
- Text styling not applying -> `components/text-display.md`
- Input focus/shortcuts -> `keyboard/REFERENCE.md`
- Layout misalignment -> `layout/REFERENCE.md`
- Flaky snapshots -> `testing/REFERENCE.md`
For component naming differences and text modifiers, see `components/REFERENCE.md`.
## Product Index
### Frameworks
| Framework | Entry File | Description |
|-----------|------------|-------------|
| Core | `./references/core/REFERENCE.md` | Imperative API, all primitives |
| React | `./references/react/REFERENCE.md` | React reconciler for declarative TUI |
| Solid | `./references/solid/REFERENCE.md` | SolidJS reconciler for declarative TUI |
### Cross-Cutting Concepts
| Concept | Entry File | Description |
|---------|------------|-------------|
| Layout | `./references/layout/REFERENCE.md` | Yoga/Flexbox layout system |
| Components | `./references/components/REFERENCE.md` | Component reference by category |
| Keyboard | `./references/keyboard/REFERENCE.md` | Keyboard input handling |
| Animation | `./references/animation/REFERENCE.md` | Timeline-based animations |
| Testing | `./references/testing/REFERENCE.md` | Test renderer and snapshots |
### Component Categories
| Category | Entry File | Components |
|----------|------------|------------|
| Text & Display | `./references/components/text-display.md` | text, ascii-font, styled text |
| Containers | `./references/components/containers.md` | box, scrollbox, borders |
| Inputs | `./references/components/inputs.md` | input, textarea, select, tab-select |
| Code & Diff | `./references/components/code-diff.md` | code, line-number, diff, markdown, text-table |
## Resources
**Repository**: https://github.com/anomalyco/opentui
**Core Docs**: https://github.com/anomalyco/opentui/tree/main/packages/core/docs
**Examples**: https://github.com/anomalyco/opentui/tree/main/packages/core/src/examples
**Awesome List**: https://github.com/msmps/awesome-opentui
@@ -1,431 +0,0 @@
# Animation System
OpenTUI provides a timeline-based animation system for smooth property transitions.
## Overview
Animations in OpenTUI use:
- **Timeline**: Orchestrates multiple animations
- **Animation Engine**: Manages timelines and rendering
- **Easing Functions**: Control animation curves
## When to Use
Use this reference when you need timeline-driven animations, easing curves, or progressive transitions.
## Basic Usage
### React
```tsx
import { useTimeline } from "@opentui/react"
import { useEffect, useState } from "react"
function AnimatedBox() {
const [width, setWidth] = useState(0)
const timeline = useTimeline({
duration: 2000,
})
useEffect(() => {
timeline.add(
{ width: 0 },
{
width: 50,
duration: 2000,
ease: "easeOutQuad",
onUpdate: (anim) => {
setWidth(Math.round(anim.targets[0].width))
},
}
)
}, [])
return (
<box
width={width}
height={3}
backgroundColor="#6a5acd"
/>
)
}
```
### Solid
```tsx
import { useTimeline } from "@opentui/solid"
import { createSignal, onMount } from "solid-js"
function AnimatedBox() {
const [width, setWidth] = createSignal(0)
const timeline = useTimeline({
duration: 2000,
})
onMount(() => {
timeline.add(
{ width: 0 },
{
width: 50,
duration: 2000,
ease: "easeOutQuad",
onUpdate: (anim) => {
setWidth(Math.round(anim.targets[0].width))
},
}
)
})
return (
<box
width={width()}
height={3}
backgroundColor="#6a5acd"
/>
)
}
```
### Core
```typescript
import { createCliRenderer, Timeline, engine } from "@opentui/core"
const renderer = await createCliRenderer()
engine.attach(renderer)
const timeline = new Timeline({
duration: 2000,
autoplay: true,
})
timeline.add(
{ x: 0 },
{
x: 50,
duration: 2000,
ease: "easeOutQuad",
onUpdate: (anim) => {
box.setLeft(Math.round(anim.targets[0].x))
},
}
)
engine.addTimeline(timeline)
```
## Timeline Options
```typescript
const timeline = useTimeline({
duration: 2000, // Total duration in ms
loop: false, // Loop the timeline
autoplay: true, // Start automatically
onComplete: () => {}, // Called when timeline completes
onPause: () => {}, // Called when timeline pauses
})
```
## Timeline Methods
```typescript
// Add animation
timeline.add(target, properties, startTime?)
// Control playback
timeline.play() // Start/resume
timeline.pause() // Pause
timeline.restart() // Restart from beginning
// State
timeline.progress // Current progress (0-1)
timeline.duration // Total duration
```
## Animation Properties
```typescript
timeline.add(
{ value: 0 }, // Target object with initial values
{
value: 100, // Final value
duration: 1000, // Animation duration in ms
ease: "linear", // Easing function
delay: 0, // Delay before starting
onUpdate: (anim) => {
// Called each frame
const current = anim.targets[0].value
},
onComplete: () => {
// Called when this animation completes
},
},
0 // Start time in timeline (optional)
)
```
## Easing Functions
Available easing functions:
### Linear
| Name | Description |
|------|-------------|
| `linear` | Constant speed |
### Quad (Power of 2)
| Name | Description |
|------|-------------|
| `easeInQuad` | Slow start |
| `easeOutQuad` | Slow end |
| `easeInOutQuad` | Slow start and end |
### Cubic (Power of 3)
| Name | Description |
|------|-------------|
| `easeInCubic` | Slower start |
| `easeOutCubic` | Slower end |
| `easeInOutCubic` | Slower start and end |
### Quart (Power of 4)
| Name | Description |
|------|-------------|
| `easeInQuart` | Even slower start |
| `easeOutQuart` | Even slower end |
| `easeInOutQuart` | Even slower start and end |
### Expo (Exponential)
| Name | Description |
|------|-------------|
| `easeInExpo` | Exponential start |
| `easeOutExpo` | Exponential end |
| `easeInOutExpo` | Exponential start and end |
### Back (Overshoot)
| Name | Description |
|------|-------------|
| `easeInBack` | Pull back, then forward |
| `easeOutBack` | Overshoot, then settle |
| `easeInOutBack` | Both |
### Elastic
| Name | Description |
|------|-------------|
| `easeInElastic` | Elastic start |
| `easeOutElastic` | Elastic end (bouncy) |
| `easeInOutElastic` | Both |
### Bounce
| Name | Description |
|------|-------------|
| `easeInBounce` | Bounce at start |
| `easeOutBounce` | Bounce at end |
| `easeInOutBounce` | Both |
## Patterns
### Progress Bar
```tsx
function ProgressBar({ progress }: { progress: number }) {
const [width, setWidth] = useState(0)
const maxWidth = 50
const timeline = useTimeline()
useEffect(() => {
timeline.add(
{ value: width },
{
value: (progress / 100) * maxWidth,
duration: 300,
ease: "easeOutQuad",
onUpdate: (anim) => {
setWidth(Math.round(anim.targets[0].value))
},
}
)
}, [progress])
return (
<box flexDirection="column" gap={1}>
<text>Progress: {progress}%</text>
<box width={maxWidth} height={1} backgroundColor="#333">
<box width={width} height={1} backgroundColor="#00FF00" />
</box>
</box>
)
}
```
### Fade In
```tsx
function FadeIn({ children }) {
const [opacity, setOpacity] = useState(0)
const timeline = useTimeline()
useEffect(() => {
timeline.add(
{ opacity: 0 },
{
opacity: 1,
duration: 500,
ease: "easeOutQuad",
onUpdate: (anim) => {
setOpacity(anim.targets[0].opacity)
},
}
)
}, [])
return (
<box style={{ opacity }}>
{children}
</box>
)
}
```
### Looping Animation
```tsx
function Spinner() {
const [frame, setFrame] = useState(0)
const frames = ["⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏"]
useEffect(() => {
const interval = setInterval(() => {
setFrame(f => (f + 1) % frames.length)
}, 80)
return () => clearInterval(interval)
}, [])
return <text>{frames[frame]} Loading...</text>
}
```
### Staggered Animation
```tsx
function StaggeredList({ items }) {
const [visibleCount, setVisibleCount] = useState(0)
useEffect(() => {
let count = 0
const interval = setInterval(() => {
count++
setVisibleCount(count)
if (count >= items.length) {
clearInterval(interval)
}
}, 100)
return () => clearInterval(interval)
}, [items.length])
return (
<box flexDirection="column">
{items.slice(0, visibleCount).map((item, i) => (
<text key={i}>{item}</text>
))}
</box>
)
}
```
### Slide In
```tsx
function SlideIn({ children, from = "left" }) {
const [offset, setOffset] = useState(from === "left" ? -20 : 20)
const timeline = useTimeline()
useEffect(() => {
timeline.add(
{ offset: from === "left" ? -20 : 20 },
{
offset: 0,
duration: 300,
ease: "easeOutCubic",
onUpdate: (anim) => {
setOffset(Math.round(anim.targets[0].offset))
},
}
)
}, [])
return (
<box position="relative" left={offset}>
{children}
</box>
)
}
```
## Performance Tips
### Batch Updates
Timeline automatically batches updates within the render loop.
### Use Integer Values
Round animated values for character-based positioning:
```typescript
onUpdate: (anim) => {
setX(Math.round(anim.targets[0].x))
}
```
### Clean Up Timelines
Hooks automatically clean up, but for core:
```typescript
// When done with timeline
engine.removeTimeline(timeline)
```
## Gotchas
### Terminal Refresh Rate
Terminal UIs typically refresh at 60 FPS max. Very fast animations may appear choppy.
### Character Grid
Animations are constrained to character cells. Sub-pixel positioning isn't possible.
### Cleanup in Effects
Always clean up intervals and timelines:
```tsx
useEffect(() => {
const interval = setInterval(...)
return () => clearInterval(interval)
}, [])
```
## See Also
- [React API](../react/api.md) - `useTimeline` hook reference
- [Solid API](../solid/api.md) - `useTimeline` hook reference
- [Core API](../core/api.md) - `AnimationEngine` and `Timeline` classes
- [Layout Patterns](../layout/patterns.md) - Animated positioning and transitions
@@ -1,144 +0,0 @@
# OpenTUI Components
Reference for all OpenTUI components, organized by category. Components are available in all three frameworks (Core, React, Solid) with slight API differences.
## When to Use
Use this reference when you need to find the right component category or compare naming across Core, React, and Solid.
## Component Categories
| Category | Components | File |
|----------|------------|------|
| Text & Display | text, ascii-font, styled text | [text-display.md](./text-display.md) |
| Containers | box, scrollbox, borders | [containers.md](./containers.md) |
| Inputs | input, textarea, select, tab-select | [inputs.md](./inputs.md) |
| Code & Diff | code, line-number, diff, markdown, text-table | [code-diff.md](./code-diff.md) |
## Component Chooser
```
Need a component?
├─ Styled text or ASCII art -> text-display.md
├─ Containers, borders, scrolling -> containers.md
├─ Forms or input controls -> inputs.md
└─ Code blocks, diffs, line numbers, markdown -> code-diff.md
```
## Component Naming
Components have different names across frameworks:
| Concept | Core (Class) | React (JSX) | Solid (JSX) |
|---------|--------------|-------------|-------------|
| Text | `TextRenderable` | `<text>` | `<text>` |
| Box | `BoxRenderable` | `<box>` | `<box>` |
| ScrollBox | `ScrollBoxRenderable` | `<scrollbox>` | `<scrollbox>` |
| Input | `InputRenderable` | `<input>` | `<input>` |
| Textarea | `TextareaRenderable` | `<textarea>` | `<textarea>` |
| Select | `SelectRenderable` | `<select>` | `<select>` |
| Tab Select | `TabSelectRenderable` | `<tab-select>` | `<tab_select>` |
| ASCII Font | `ASCIIFontRenderable` | `<ascii-font>` | `<ascii_font>` |
| Code | `CodeRenderable` | `<code>` | `<code>` |
| Line Number | `LineNumberRenderable` | `<line-number>` | `<line_number>` |
| Diff | `DiffRenderable` | `<diff>` | `<diff>` |
| Markdown | `MarkdownRenderable` | `<markdown>` | `<markdown>` |
| TextTable | `TextTableRenderable` | N/A (Core only) | N/A (Core only) |
**Note**: Solid uses underscores (`tab_select`) while React uses hyphens (`tab-select`). `TextTableRenderable` is used internally by `MarkdownRenderable` for table rendering and is also available as a standalone Core component.
## Common Properties
All components share these layout properties (see [Layout](../layout/REFERENCE.md)):
```tsx
// Positioning
position="relative" | "absolute"
left, top, right, bottom
// Dimensions
width, height
minWidth, maxWidth, minHeight, maxHeight
// Flexbox
flexDirection, flexGrow, flexShrink, flexBasis
justifyContent, alignItems, alignSelf
flexWrap, gap
// Spacing
padding, paddingTop, paddingRight, paddingBottom, paddingLeft
paddingX, paddingY // Axis shorthand (horizontal/vertical)
margin, marginTop, marginRight, marginBottom, marginLeft
marginX, marginY // Axis shorthand (horizontal/vertical)
// Display
display="flex" | "none"
overflow="visible" | "hidden" | "scroll"
zIndex
```
## Quick Examples
### Core (Imperative)
```typescript
import { createCliRenderer, TextRenderable, BoxRenderable } from "@opentui/core"
const renderer = await createCliRenderer()
const box = new BoxRenderable(renderer, {
id: "container",
border: true,
padding: 2,
})
const text = new TextRenderable(renderer, {
id: "greeting",
content: "Hello!",
fg: "#00FF00",
})
box.add(text)
renderer.root.add(box)
```
### React
```tsx
import { createCliRenderer } from "@opentui/core"
import { createRoot } from "@opentui/react"
function App() {
return (
<box border padding={2}>
<text fg="#00FF00">Hello!</text>
</box>
)
}
const renderer = await createCliRenderer()
createRoot(renderer).render(<App />)
```
### Solid
```tsx
import { render } from "@opentui/solid"
function App() {
return (
<box border padding={2}>
<text fg="#00FF00">Hello!</text>
</box>
)
}
render(() => <App />)
```
## See Also
- [Core API](../core/api.md) - Imperative component classes
- [React API](../react/api.md) - React component props
- [Solid API](../solid/api.md) - Solid component props
- [Layout](../layout/REFERENCE.md) - Layout system details
@@ -1,672 +0,0 @@
# Code & Diff Components
Components for displaying code with syntax highlighting and diffs in OpenTUI.
## Code Component
Display syntax-highlighted code blocks.
### Basic Usage
```tsx
// React
<code
code={`function hello() {
console.log("Hello, World!");
}`}
language="typescript"
/>
// Solid
<code
code={sourceCode}
language="javascript"
/>
// Core
const codeBlock = new CodeRenderable(renderer, {
id: "code",
code: sourceCode,
language: "typescript",
})
```
### Supported Languages
OpenTUI uses Tree-sitter for syntax highlighting. Common languages:
- `typescript`, `javascript`
- `python`
- `rust`
- `go`
- `json`
- `html`, `css`
- `markdown`
- `bash`, `shell`
### Styling
```tsx
<code
code={sourceCode}
language="typescript"
backgroundColor="#1a1a2e"
showLineNumbers
/>
```
### onHighlight Callback
Intercept and modify syntax highlights before rendering:
```tsx
// Core
const codeBlock = new CodeRenderable(renderer, {
id: "code",
code: sourceCode,
language: "typescript",
onHighlight: (highlights, context) => {
// Add custom highlights
highlights.push([10, 20, "custom.error", {}])
return highlights
},
})
// React/Solid
<code
code={sourceCode}
language="typescript"
onHighlight={(highlights, context) => {
// context: { content, filetype, syntaxStyle }
// Modify and return highlights array
return highlights.filter(h => h[2] !== "comment")
}}
/>
```
**Callback signature:**
- `highlights: SimpleHighlight[]` - Array of `[start, end, scope, metadata]`
- `context: { content, filetype, syntaxStyle }` - Highlighting context
- Return modified highlights array or `undefined` to use original
Supports async callbacks for fetching additional highlight data.
### onChunks Callback
Post-process rendered text chunks after syntax highlighting. Runs after `onHighlight` and receives fully resolved chunks:
```tsx
// Core
const codeBlock = new CodeRenderable(renderer, {
id: "code",
code: sourceCode,
language: "typescript",
onChunks: (chunks, context) => {
// Transform chunks (e.g., add link detection)
return chunks
},
})
// React/Solid
<code
code={sourceCode}
language="typescript"
onChunks={(chunks, context) => {
// context: { content, filetype, syntaxStyle, highlights }
return chunks
}}
/>
```
### Link Detection Utility
Auto-detect URLs in code and add clickable hyperlinks:
```typescript
import { detectLinks } from "@opentui/core"
<code
code={sourceCode}
language="typescript"
onChunks={(chunks, context) => detectLinks(chunks, context)}
/>
```
`detectLinks` examines Tree-sitter highlights to find URL tokens and sets `chunk.link` on matching chunks. Supports async usage.
## TextTable Component
Render data tables with borders, word wrapping, and selection support.
### Basic Usage
```typescript
// Core
import { TextTableRenderable, type TextTableContent } from "@opentui/core"
const content: TextTableContent = [
[[ { text: "Name" } ], [ { text: "Age" } ], [ { text: "Role" } ]],
[[ { text: "Alice" } ], [ { text: "30" } ], [ { text: "Engineer" } ]],
[[ { text: "Bob" } ], [ { text: "25" } ], [ { text: "Designer" } ]],
]
const table = new TextTableRenderable(renderer, {
id: "table",
content,
wrapMode: "word", // "none" | "char" | "word"
columnWidthMode: "content", // "content" | "fill"
cellPadding: 0,
border: true,
outerBorder: true,
borderStyle: "single", // single | double | rounded | bold
selectable: true, // Allow text selection
columnFitter: "balanced", // "proportional" | "balanced"
})
```
### Options
| Option | Type | Default | Description |
|--------|------|---------|-------------|
| `content` | `TextTableContent` | - | 2D array of cell content |
| `wrapMode` | `"none" \| "char" \| "word"` | `"none"` | Text wrapping in cells |
| `columnWidthMode` | `"content" \| "fill"` | `"content"` | Column sizing strategy |
| `cellPadding` | `number` | `0` | Padding inside cells |
| `border` | `boolean` | `true` | Show inner borders |
| `outerBorder` | `boolean` | `true` | Show outer borders |
| `borderStyle` | `string` | `"single"` | Border style |
| `borderColor` | `string \| RGBA` | - | Border color |
| `selectable` | `boolean` | `false` | Allow text selection |
| `columnFitter` | `"proportional" \| "balanced"` | `"proportional"` | Column width distribution |
### Cell Content Format
Each cell is an array of styled text chunks:
```typescript
type TextTableCellContent = { text: string; fg?: RGBA; bg?: RGBA }[]
type TextTableContent = TextTableCellContent[][] // rows -> cells -> chunks
```
### Selection
```typescript
table.getSelectedText() // Get selected text
table.hasSelection() // Check if text is selected
```
Columnar selection is supported: dragging vertically within a single column selects only that column's content.
## Line Number Component
Code display with line numbers, highlighting, and diagnostics.
### Basic Usage
```tsx
// React
<line-number
code={sourceCode}
language="typescript"
/>
// Solid (note underscore)
<line_number
code={sourceCode}
language="typescript"
/>
// Core
const codeView = new LineNumberRenderable(renderer, {
id: "code-view",
code: sourceCode,
language: "typescript",
})
```
### Line Number Options
```tsx
// React
<line-number
code={sourceCode}
language="typescript"
startLine={1} // Starting line number
showLineNumbers={true} // Display line numbers
/>
// Solid
<line_number
code={sourceCode}
language="typescript"
startLine={1}
showLineNumbers={true}
/>
```
### Line Highlighting
Highlight specific lines:
```tsx
// React
<line-number
code={sourceCode}
language="typescript"
highlightedLines={[5, 10, 15]} // Highlight these lines
/>
// Solid
<line_number
code={sourceCode}
language="typescript"
highlightedLines={[5, 10, 15]}
/>
```
### Diagnostics
Show errors, warnings, and info on specific lines:
```tsx
// React
<line-number
code={sourceCode}
language="typescript"
diagnostics={[
{ line: 3, severity: "error", message: "Unexpected token" },
{ line: 7, severity: "warning", message: "Unused variable" },
{ line: 12, severity: "info", message: "Consider using const" },
]}
/>
// Solid
<line_number
code={sourceCode}
language="typescript"
diagnostics={[
{ line: 3, severity: "error", message: "Unexpected token" },
]}
/>
```
**Diagnostic severity levels:**
- `error` - Red indicator
- `warning` - Yellow indicator
- `info` - Blue indicator
- `hint` - Gray indicator
### Diff Highlighting
Show added/removed lines:
```tsx
<line-number
code={sourceCode}
language="typescript"
addedLines={[5, 6, 7]} // Green background
removedLines={[10, 11]} // Red background
/>
```
## Diff Component
Unified or split diff viewer with syntax highlighting.
### Basic Usage
```tsx
// React
<diff
oldCode={originalCode}
newCode={modifiedCode}
language="typescript"
/>
// Solid
<diff
oldCode={originalCode}
newCode={modifiedCode}
language="typescript"
/>
// Core
const diffView = new DiffRenderable(renderer, {
id: "diff",
oldCode: originalCode,
newCode: modifiedCode,
language: "typescript",
})
```
### Display Modes
```tsx
// Unified diff (default)
<diff
oldCode={old}
newCode={new}
mode="unified"
/>
// Split/side-by-side diff
<diff
oldCode={old}
newCode={new}
mode="split"
/>
```
### Synchronized Scrolling (Split View)
In split view, enable synchronized scrolling between left and right panes:
```tsx
// React/Solid
<diff
oldCode={old}
newCode={new}
mode="split"
syncScroll // Scrolling one pane syncs the other
/>
// Core
const diffView = new DiffRenderable(renderer, {
id: "diff",
diff: unifiedDiff,
view: "split",
syncScroll: true,
})
// Toggle at runtime
diffView.syncScroll = true
diffView.syncScroll = false
```
### Options
```tsx
<diff
oldCode={originalCode}
newCode={modifiedCode}
language="typescript"
mode="unified"
showLineNumbers
context={3} // Lines of context around changes
/>
```
### Styling
```tsx
<diff
oldCode={old}
newCode={new}
addedLineColor="#2d4f2d" // Background for added lines
removedLineColor="#4f2d2d" // Background for removed lines
unchangedLineColor="transparent"
/>
```
### Line Highlighting API (Core)
Programmatically highlight specific lines in a diff:
```typescript
// Set a single line's color
diffView.setLineColor(5, "#2d4f2d")
diffView.setLineColor(5, { gutter: "#333", content: "#2d4f2d" })
// Clear a single line's color
diffView.clearLineColor(5)
// Set multiple lines at once
diffView.setLineColors(new Map([
[1, "#2d4f2d"],
[2, "#4f2d2d"],
]))
// Highlight a range
diffView.highlightLines(10, 20, "#2d4f2d")
diffView.clearHighlightLines(10, 20)
// Clear all line colors
diffView.clearAllLineColors()
```
The `LineNumberRenderable` also supports programmatic highlighting:
```typescript
lineNumberView.highlightLines(5, 10, "#2d4f2d")
lineNumberView.clearHighlightLines(5, 10)
```
```
## Markdown Component
Render markdown content with syntax highlighting for code blocks.
### Basic Usage
```tsx
// React
<markdown
content={markdownText}
syntaxStyle={mySyntaxStyle}
/>
// Solid
<markdown
content={markdownText}
syntaxStyle={mySyntaxStyle}
/>
// Core
import { MarkdownRenderable } from "@opentui/core"
const md = new MarkdownRenderable(renderer, {
id: "markdown",
content: "# Hello\n\nThis is **markdown**.",
syntaxStyle: mySyntaxStyle,
})
```
### Options
```tsx
<markdown
content={markdownText}
syntaxStyle={syntaxStyle}
treeSitterClient={client} // Optional: custom tree-sitter client
conceal={true} // Hide markdown syntax characters
streaming={true} // Enable streaming mode for incremental updates
tableOptions={{ // Customize markdown table rendering
widthMode: "full", // "content" | "full"
wrapMode: "word", // "none" | "char" | "word"
cellPadding: 0,
borders: true,
outerBorder: true,
borderStyle: "single",
borderColor: "#555",
selectable: true, // Tables are selectable by default
}}
/>
```
### Custom Node Rendering
```tsx
// Core
const md = new MarkdownRenderable(renderer, {
id: "markdown",
content: "# Custom Heading",
syntaxStyle,
renderNode: (node, ctx, defaultRender) => {
if (node.type === "heading") {
// Return custom renderable for headings
return new TextRenderable(ctx, {
content: `>> ${node.content} <<`,
})
}
return null // Use default rendering
},
})
```
### Streaming Mode
For real-time content like LLM output:
```tsx
const [content, setContent] = useState("")
// Append text as it arrives
useEffect(() => {
llmStream.on("token", (token) => {
setContent(c => c + token)
})
}, [])
<markdown
content={content}
syntaxStyle={syntaxStyle}
streaming={true} // Optimizes for incremental updates
/>
```
## Use Cases
### Code Editor
```tsx
function CodeEditor() {
const [code, setCode] = useState(`function hello() {
console.log("Hello!");
}`)
return (
<box flexDirection="column" height="100%">
<box height={1}>
<text>editor.ts</text>
</box>
<textarea
value={code}
onChange={setCode}
language="typescript"
showLineNumbers
flexGrow={1}
focused
/>
</box>
)
}
```
### Code Review
```tsx
function CodeReview({ oldCode, newCode }) {
return (
<box flexDirection="column" height="100%">
<box height={1} backgroundColor="#333">
<text>Changes in src/utils.ts</text>
</box>
<diff
oldCode={oldCode}
newCode={newCode}
language="typescript"
mode="split"
showLineNumbers
/>
</box>
)
}
```
### Syntax-Highlighted Preview
```tsx
function MarkdownPreview({ content }) {
// Extract code blocks from markdown
const codeBlocks = extractCodeBlocks(content)
return (
<scrollbox height={20}>
{codeBlocks.map((block, i) => (
<box key={i} marginBottom={1}>
<code
code={block.code}
language={block.language}
/>
</box>
))}
</scrollbox>
)
}
```
### Error Display
```tsx
function ErrorView({ errors, code }) {
const diagnostics = errors.map(err => ({
line: err.line,
severity: "error",
message: err.message,
}))
return (
<line-number
code={code}
language="typescript"
diagnostics={diagnostics}
highlightedLines={errors.map(e => e.line)}
/>
)
}
```
## Gotchas
### Solid Uses Underscores
```tsx
// React
<line-number />
// Solid
<line_number />
```
### Language Required for Highlighting
```tsx
// No highlighting (plain text)
<code code={text} />
// With highlighting
<code code={text} language="typescript" />
```
### Large Files
For very large files, consider:
- Pagination or virtual scrolling
- Loading only visible portion
- Using `scrollbox` wrapper
```tsx
<scrollbox height={30}>
<line-number
code={largeFile}
language="typescript"
/>
</scrollbox>
```
### Tree-sitter Loading
Syntax highlighting requires Tree-sitter grammars. If highlighting isn't working:
1. Check the language is supported
2. Verify grammars are installed
3. Check `OTUI_TREE_SITTER_WORKER_PATH` if using custom path
@@ -1,417 +0,0 @@
# Container Components
Components for grouping and organizing content in OpenTUI.
## Box Component
The primary container component with borders, backgrounds, and layout capabilities.
### Basic Usage
```tsx
// React/Solid
<box>
<text>Content inside box</text>
</box>
// Core
const box = new BoxRenderable(renderer, {
id: "container",
})
box.add(child)
```
### Borders
```tsx
<box border>
Simple border
</box>
<box
border
borderStyle="single" // single | double | rounded | bold | none
borderColor="#FFFFFF"
>
Styled border
</box>
// Individual borders
<box
borderTop
borderBottom
borderLeft={false}
borderRight={false}
>
Top and bottom only
</box>
```
**Border Styles:**
| Style | Appearance |
|-------|------------|
| `single` | `┌─┐│ │└─┘` |
| `double` | `╔═╗║ ║╚═╝` |
| `rounded` | `╭─╮│ │╰─╯` |
| `bold` | `┏━┓┃ ┃┗━┛` |
### Title
```tsx
<box
border
title="Settings"
titleAlignment="center" // left | center | right
>
Panel content
</box>
```
### Background
```tsx
<box backgroundColor="#1a1a2e">
Dark background
</box>
<box backgroundColor="transparent">
No background
</box>
```
### Layout
Boxes are flex containers by default:
```tsx
<box
flexDirection="row" // row | column | row-reverse | column-reverse
justifyContent="center" // flex-start | flex-end | center | space-between | space-around
alignItems="center" // flex-start | flex-end | center | stretch | baseline
gap={2} // Space between children
>
<text>Item 1</text>
<text>Item 2</text>
</box>
```
### Spacing
```tsx
<box
padding={2} // All sides
paddingTop={1}
paddingRight={2}
paddingBottom={1}
paddingLeft={2}
paddingX={2} // Horizontal (left + right)
paddingY={1} // Vertical (top + bottom)
margin={1}
marginTop={1}
marginX={2} // Horizontal (left + right)
marginY={1} // Vertical (top + bottom)
>
Spaced content
</box>
```
### Dimensions
```tsx
<box
width={40} // Fixed width
height={10} // Fixed height
width="50%" // Percentage of parent
minWidth={20} // Minimum width
maxWidth={80} // Maximum width
flexGrow={1} // Grow to fill space
>
Sized box
</box>
```
### Mouse Events
```tsx
<box
onMouseDown={(event) => {
console.log("Clicked at:", event.x, event.y)
}}
onMouseUp={(event) => {}}
onMouseMove={(event) => {}}
>
Clickable box
</box>
```
### Focusable Boxes
By default, Box elements are not focusable. Set the `focusable` prop to enable focus behavior:
```tsx
// Make a box focusable - it can receive focus via mouse click
<box focusable border>
<text>Click to focus</text>
</box>
// Controlled focus state
const [focused, setFocused] = useState(false)
<box
focusable
focused={focused}
border
borderColor={focused ? "#00ff00" : "#888"}
>
<text>{focused ? "Focused!" : "Not focused"}</text>
</box>
```
When a focusable Box is clicked, focus bubbles up from the click target to the nearest focusable parent. Use `event.preventDefault()` in `onMouseDown` to prevent auto-focus.
## ScrollBox Component
A scrollable container for content that exceeds the viewport.
### Basic Usage
```tsx
// React
<scrollbox height={10}>
{items.map((item, i) => (
<text key={i}>{item}</text>
))}
</scrollbox>
// Solid
<scrollbox height={10}>
<For each={items()}>
{(item) => <text>{item}</text>}
</For>
</scrollbox>
// Core
const scrollbox = new ScrollBoxRenderable(renderer, {
id: "list",
height: 10,
})
items.forEach(item => {
scrollbox.add(new TextRenderable(renderer, { content: item }))
})
```
### Focus for Keyboard Scrolling
```tsx
<scrollbox focused height={20}>
{/* Use arrow keys to scroll */}
</scrollbox>
```
### Scrollbar Styling
```tsx
// React
<scrollbox
style={{
rootOptions: {
backgroundColor: "#24283b",
},
wrapperOptions: {
backgroundColor: "#1f2335",
},
viewportOptions: {
backgroundColor: "#1a1b26",
},
contentOptions: {
backgroundColor: "#16161e",
},
scrollbarOptions: {
showArrows: true,
trackOptions: {
foregroundColor: "#7aa2f7",
backgroundColor: "#414868",
},
},
}}
>
{content}
</scrollbox>
```
### Scroll Position (Core)
```typescript
const scrollbox = new ScrollBoxRenderable(renderer, {
id: "list",
height: 20,
})
// Scroll programmatically
scrollbox.scrollTo(0) // Scroll to top
scrollbox.scrollTo(100) // Scroll to position
scrollbox.scrollBy(10) // Scroll relative
scrollbox.scrollToBottom() // Scroll to end
// Scroll a child into view (nearest alignment)
scrollbox.scrollChildIntoView("child-id") // Searches descendants by ID
```
`scrollChildIntoView(childId)` scrolls the minimum amount needed to make the identified descendant visible. It mirrors `Element.scrollIntoView({ block: "nearest" })` from the CSSOM View spec. Works with nested descendants and handles both horizontal and vertical scrolling.
## Composition Patterns
### Card Component
```tsx
function Card({ title, children }) {
return (
<box
border
borderStyle="rounded"
padding={2}
marginBottom={1}
>
{title && (
<text fg="#00FFFF" bold>
{title}
</text>
)}
<box marginTop={title ? 1 : 0}>
{children}
</box>
</box>
)
}
```
### Panel Component
```tsx
function Panel({ title, children, width = 40 }) {
return (
<box
border
borderStyle="double"
width={width}
backgroundColor="#1a1a2e"
>
{title && (
<box
borderBottom
padding={1}
backgroundColor="#2a2a4e"
>
<text bold>{title}</text>
</box>
)}
<box padding={2}>
{children}
</box>
</box>
)
}
```
### List Container
```tsx
function List({ items, renderItem }) {
return (
<scrollbox height={15} focused>
{items.map((item, i) => (
<box
key={i}
padding={1}
backgroundColor={i % 2 === 0 ? "#222" : "#333"}
>
{renderItem(item, i)}
</box>
))}
</scrollbox>
)
}
```
## Nesting Containers
```tsx
<box flexDirection="column" height="100%">
{/* Header */}
<box height={3} border>
<text>Header</text>
</box>
{/* Main area with sidebar */}
<box flexDirection="row" flexGrow={1}>
<box width={20} border>
<text>Sidebar</text>
</box>
<box flexGrow={1}>
<scrollbox height="100%">
{/* Scrollable content */}
</scrollbox>
</box>
</box>
{/* Footer */}
<box height={1}>
<text>Footer</text>
</box>
</box>
```
## Gotchas
### Percentage Dimensions Need Parent Size
```tsx
// WRONG - parent has no explicit size
<box>
<box width="50%">Won't work</box>
</box>
// CORRECT
<box width="100%">
<box width="50%">Works</box>
</box>
```
### FlexGrow Needs Sized Parent
```tsx
// WRONG
<box>
<box flexGrow={1}>Won't grow</box>
</box>
// CORRECT
<box height="100%">
<box flexGrow={1}>Will grow</box>
</box>
```
### ScrollBox Needs Height
```tsx
// WRONG - no height constraint
<scrollbox>
{items}
</scrollbox>
// CORRECT
<scrollbox height={20}>
{items}
</scrollbox>
```
### Borders Add to Size
Borders take up space inside the box:
```tsx
<box width={10} border>
{/* Inner content area is 8 chars (10 - 2 for borders) */}
</box>
```
@@ -1,531 +0,0 @@
# Input Components
Components for user input in OpenTUI.
## Input Component
Single-line text input field.
### Basic Usage
```tsx
// React
<input
value={value}
onChange={(newValue) => setValue(newValue)}
placeholder="Enter text..."
focused
/>
// Solid
<input
value={value()}
onInput={(newValue) => setValue(newValue)}
placeholder="Enter text..."
focused
/>
// Core
const input = new InputRenderable(renderer, {
id: "name",
placeholder: "Enter text...",
})
input.on(InputRenderableEvents.CHANGE, (value) => {
console.log("Value:", value)
})
input.focus()
```
### Styling
```tsx
<input
width={30}
backgroundColor="#1a1a1a"
textColor="#FFFFFF"
cursorColor="#00FF00"
focusedBackgroundColor="#2a2a2a"
placeholderColor="#666666"
/>
```
### Events
```tsx
// React
<input
onChange={(value) => console.log("Changed:", value)}
onFocus={() => console.log("Focused")}
onBlur={() => console.log("Blurred")}
/>
// Core
input.on(InputRenderableEvents.CHANGE, (value) => {})
input.on(InputRenderableEvents.FOCUS, () => {})
input.on(InputRenderableEvents.BLUR, () => {})
```
### Controlled Input
```tsx
// React
function ControlledInput() {
const [value, setValue] = useState("")
return (
<input
value={value}
onChange={setValue}
focused
/>
)
}
// Solid
function ControlledInput() {
const [value, setValue] = createSignal("")
return (
<input
value={value()}
onInput={setValue}
focused
/>
)
}
```
## Textarea Component
Multi-line text input field.
### Basic Usage
```tsx
// React
<textarea
value={text}
onChange={(newText) => setText(newText)}
placeholder="Enter multiple lines..."
width={40}
height={10}
focused
/>
// Solid
<textarea
value={text()}
onInput={(newText) => setText(newText)}
placeholder="Enter multiple lines..."
width={40}
height={10}
focused
/>
// Core
const textarea = new TextareaRenderable(renderer, {
id: "editor",
width: 40,
height: 10,
placeholder: "Enter text...",
})
```
### Features
```tsx
<textarea
showLineNumbers // Display line numbers
wrapText // Wrap long lines
readOnly // Disable editing
tabSize={2} // Tab character width
/>
```
### Syntax Highlighting
```tsx
<textarea
language="typescript"
value={code}
onChange={setCode}
/>
```
## Select Component
List selection for choosing from options.
### Basic Usage
```tsx
// React
<select
options={[
{ name: "Option 1", description: "First option", value: "1" },
{ name: "Option 2", description: "Second option", value: "2" },
{ name: "Option 3", description: "Third option", value: "3" },
]}
onSelect={(index, option) => {
console.log("Selected:", option.name) // Called when Enter is pressed
}}
focused
/>
// Solid
<select
options={[
{ name: "Option 1", description: "First option", value: "1" },
{ name: "Option 2", description: "Second option", value: "2" },
]}
onSelect={(index, option) => {
console.log("Selected:", option.name) // Called when Enter is pressed
}}
focused
/>
// Core
const select = new SelectRenderable(renderer, {
id: "menu",
options: [
{ name: "Option 1", description: "First option", value: "1" },
{ name: "Option 2", description: "Second option", value: "2" },
],
})
select.on(SelectRenderableEvents.ITEM_SELECTED, (index, option) => {
console.log("Selected:", option.name) // Called when Enter is pressed
})
select.focus()
```
### Option Format
```typescript
interface SelectOption {
name: string // Display text
description?: string // Optional description shown below
value?: any // Associated value
}
```
### Styling
```tsx
<select
height={8} // Visible height
selectedIndex={0} // Initially selected
showScrollIndicator // Show scroll arrows
selectedBackgroundColor="#333"
selectedTextColor="#fff"
highlightBackgroundColor="#444"
/>
```
### Navigation
Default keybindings:
- `Up` / `k` - Move up
- `Down` / `j` - Move down
- `Enter` - Select item
### Events
**Important**: `onSelect` and `onChange` serve different purposes:
| Event | Trigger | Use Case |
|-------|---------|----------|
| `onSelect` | **Enter key pressed** - user confirms selection | Perform action with selected item |
| `onChange` | **Arrow keys** - user navigates list | Preview, update UI as user browses |
```tsx
// React/Solid
<select
onSelect={(index, option) => {
// Called when Enter is pressed - selection confirmed
console.log("User selected:", option.name)
performAction(option)
}}
onChange={(index, option) => {
// Called when navigating with arrow keys
console.log("Browsing:", option.name)
showPreview(option)
}}
/>
// Core
select.on(SelectRenderableEvents.ITEM_SELECTED, (index, option) => {
// Called when Enter is pressed
})
select.on(SelectRenderableEvents.SELECTION_CHANGED, (index, option) => {
// Called when navigating with arrow keys
})
```
## Tab Select Component
Horizontal tab-based selection.
### Basic Usage
```tsx
// React
<tab-select
options={[
{ name: "Home", description: "Dashboard view" },
{ name: "Settings", description: "Configuration" },
{ name: "Help", description: "Documentation" },
]}
onSelect={(index, option) => {
console.log("Tab selected:", option.name) // Called when Enter is pressed
}}
focused
/>
// Solid (note underscore)
<tab_select
options={[
{ name: "Home", description: "Dashboard view" },
{ name: "Settings", description: "Configuration" },
]}
onSelect={(index, option) => {
console.log("Tab selected:", option.name) // Called when Enter is pressed
}}
focused
/>
// Core
const tabs = new TabSelectRenderable(renderer, {
id: "tabs",
options: [...],
tabWidth: 20,
})
tabs.on(TabSelectRenderableEvents.ITEM_SELECTED, (index, option) => {
console.log("Tab selected:", option.name) // Called when Enter is pressed
})
tabs.focus()
```
### Events
Same pattern as Select - `onSelect` for Enter key, `onChange` for navigation:
```tsx
<tab-select
onSelect={(index, option) => {
// Called when Enter is pressed - switch to tab
setActiveTab(index)
}}
onChange={(index, option) => {
// Called when navigating with arrow keys
showTabPreview(option)
}}
/>
```
### Styling
```tsx
// React
<tab-select
tabWidth={20} // Width of each tab
selectedIndex={0} // Initially selected tab
/>
// Solid
<tab_select
tabWidth={20}
selectedIndex={0}
/>
```
### Navigation
Default keybindings:
- `Left` / `[` - Previous tab
- `Right` / `]` - Next tab
- `Enter` - Select tab
## Focus Management
### Single Focused Input
```tsx
function SingleInput() {
return <input placeholder="I'm focused" focused />
}
```
### Multiple Inputs with Focus State
```tsx
// React
function Form() {
const [focusIndex, setFocusIndex] = useState(0)
const fields = ["name", "email", "message"]
useKeyboard((key) => {
if (key.name === "tab") {
setFocusIndex(i => (i + 1) % fields.length)
}
})
return (
<box flexDirection="column" gap={1}>
{fields.map((field, i) => (
<input
key={field}
placeholder={`Enter ${field}`}
focused={i === focusIndex}
/>
))}
</box>
)
}
```
### Focus Methods (Core)
```typescript
input.focus() // Give focus
input.blur() // Remove focus
input.isFocused() // Check focus state
```
## Form Patterns
### Login Form
```tsx
function LoginForm() {
const [username, setUsername] = useState("")
const [password, setPassword] = useState("")
const [focusField, setFocusField] = useState<"username" | "password">("username")
useKeyboard((key) => {
if (key.name === "tab") {
setFocusField(f => f === "username" ? "password" : "username")
}
if (key.name === "enter") {
handleLogin()
}
})
return (
<box flexDirection="column" gap={1} border padding={2}>
<box flexDirection="row" gap={1}>
<text>Username:</text>
<input
value={username}
onChange={setUsername}
focused={focusField === "username"}
width={20}
/>
</box>
<box flexDirection="row" gap={1}>
<text>Password:</text>
<input
value={password}
onChange={setPassword}
focused={focusField === "password"}
width={20}
/>
</box>
</box>
)
}
```
### Search with Results
```tsx
function SearchableList({ items, onItemSelected }) {
const [query, setQuery] = useState("")
const [focusSearch, setFocusSearch] = useState(true)
const [preview, setPreview] = useState(null)
const filtered = items.filter(item =>
item.toLowerCase().includes(query.toLowerCase())
)
useKeyboard((key) => {
if (key.name === "tab") {
setFocusSearch(f => !f)
}
})
return (
<box flexDirection="column">
<input
value={query}
onChange={setQuery}
placeholder="Search..."
focused={focusSearch}
/>
<select
options={filtered.map(item => ({ name: item }))}
focused={!focusSearch}
height={10}
onSelect={(index, option) => {
// Enter pressed - confirm selection
onItemSelected(option)
}}
onChange={(index, option) => {
// Navigating - show preview
setPreview(option)
}}
/>
</box>
)
}
```
## Gotchas
### Focus Required
Inputs must be focused to receive keyboard input:
```tsx
// WRONG - won't receive input
<input placeholder="Type here" />
// CORRECT
<input placeholder="Type here" focused />
```
### Select Options Format
Options must be objects with `name` property:
```tsx
// WRONG
<select options={["a", "b", "c"]} />
// CORRECT
<select options={[
{ name: "A", description: "Option A" },
{ name: "B", description: "Option B" },
]} />
```
### Solid Uses Underscores
```tsx
// React
<tab-select />
// Solid
<tab_select />
```
### Value vs onInput (Solid)
Solid uses `onInput` instead of `onChange`:
```tsx
// React
<input value={value} onChange={setValue} />
// Solid
<input value={value()} onInput={setValue} />
```
@@ -1,386 +0,0 @@
# Text & Display Components
Components for displaying text content in OpenTUI.
## Text Component
The primary component for displaying styled text.
### Basic Usage
```tsx
// React/Solid
<text>Hello, World!</text>
// With content prop
<text content="Hello, World!" />
// Core
const text = new TextRenderable(renderer, {
id: "greeting",
content: "Hello, World!",
})
```
### Styling (React/Solid)
For React and Solid, use **nested modifier tags** for text styling:
```tsx
<text fg="#FFFFFF" bg="#000000">
<strong>Bold</strong>, <em>italic</em>, and <u>underlined</u>
</text>
```
> **Important**: Do NOT use `bold`, `italic`, `underline`, `dim`, `strikethrough` as props on `<text>` — they don't work. Always use nested tags like `<strong>`, `<em>`, `<u>`, or `<span>` with styling.
### Styling (Core) - Text Attributes
```typescript
import { TextRenderable, TextAttributes } from "@opentui/core"
const text = new TextRenderable(renderer, {
content: "Styled",
attributes: TextAttributes.BOLD | TextAttributes.UNDERLINE,
})
```
**Available attributes:**
- `TextAttributes.BOLD`
- `TextAttributes.DIM`
- `TextAttributes.ITALIC`
- `TextAttributes.UNDERLINE`
- `TextAttributes.BLINK`
- `TextAttributes.INVERSE`
- `TextAttributes.HIDDEN`
- `TextAttributes.STRIKETHROUGH`
### Text Selection
```tsx
<text selectable>
This text can be selected by the user
</text>
<text selectable={false}>
This text cannot be selected
</text>
```
For copy-on-selection and the full selection API, see `keyboard/REFERENCE.md` (selection).
## Text Modifiers
Inline styling elements that must be used inside `<text>`:
### Span
Inline styled text:
```tsx
<text>
Normal text with <span fg="red">red text</span> inline
</text>
```
### Bold/Strong
```tsx
<text>
<strong>Bold text</strong>
<b>Also bold</b>
</text>
```
### Italic/Emphasis
```tsx
<text>
<em>Italic text</em>
<i>Also italic</i>
</text>
```
### Underline
```tsx
<text>
<u>Underlined text</u>
</text>
```
### Line Break
```tsx
<text>
Line one
<br />
Line two
</text>
```
### Link
```tsx
<text>
Visit <a href="https://example.com">our website</a>
</text>
```
### Combined Modifiers
```tsx
<text>
<span fg="#00FF00">
<strong>Bold green</strong>
</span>
and
<span fg="#FF0000">
<em><u>italic underlined red</u></em>
</span>
</text>
```
## Styled Text Template (Core)
The `t` template literal for complex styling:
```typescript
import { t, bold, italic, underline, fg, bg, dim } from "@opentui/core"
const styled = t`
${bold("Bold")} and ${italic("italic")} text.
${fg("#FF0000")("Red text")} with ${bg("#0000FF")("blue background")}.
${dim("Dimmed")} and ${underline("underlined")}.
`
const text = new TextRenderable(renderer, {
content: styled,
})
```
### Style Functions
| Function | Description |
|----------|-------------|
| `bold(text)` | Bold text |
| `italic(text)` | Italic text |
| `underline(text)` | Underlined text |
| `dim(text)` | Dimmed text |
| `strikethrough(text)` | Strikethrough text |
| `fg(color)(text)` | Set foreground color |
| `bg(color)(text)` | Set background color |
## ASCII Font Component
Display large ASCII art text banners.
### Basic Usage
```tsx
// React
<ascii-font text="TITLE" font="tiny" />
// Solid
<ascii_font text="TITLE" font="tiny" />
// Core
const title = new ASCIIFontRenderable(renderer, {
id: "title",
text: "TITLE",
font: "tiny",
})
```
### Available Fonts
| Font | Description |
|------|-------------|
| `tiny` | Compact ASCII font |
| `block` | Block-style letters |
| `slick` | Sleek modern style |
| `shade` | Shaded 3D effect |
### Styling
```tsx
// React
<ascii-font
text="HELLO"
font="block"
color="#00FF00"
/>
// Core
import { RGBA } from "@opentui/core"
const title = new ASCIIFontRenderable(renderer, {
text: "HELLO",
font: "block",
color: RGBA.fromHex("#00FF00"),
})
```
### Example Output
```
Font: tiny
╭─╮╭─╮╭─╮╭╮╭╮╭─╮╶╮╶ ╶╮
│ ││─┘├┤ │╰╯││ │ │
╰─╯╵ ╰─╯╵ ╵╰─╯╶╯╶╰─╯
Font: block
█▀▀█ █▀▀█ █▀▀ █▀▀▄
█ █ █▀▀▀ █▀▀ █ █
▀▀▀▀ ▀ ▀▀▀ ▀ ▀
```
## Colors
### Color Formats
```tsx
// Hex colors
<text fg="#FF0000">Red</text>
<text fg="#F00">Short hex</text>
// Named colors
<text fg="red">Red</text>
<text fg="blue">Blue</text>
// Transparent
<text bg="transparent">No background</text>
```
### RGBA Class
The `RGBA` class from `@opentui/core` can be used in **all frameworks** (Core, React, Solid) for programmatic color manipulation:
```typescript
import { RGBA } from "@opentui/core"
// From hex string (most common)
const red = RGBA.fromHex("#FF0000")
const shortHex = RGBA.fromHex("#F00") // Short form supported
// From integers (0-255 range for each channel)
const green = RGBA.fromInts(0, 255, 0, 255) // r, g, b, a
const semiGreen = RGBA.fromInts(0, 255, 0, 128) // 50% transparent
// From normalized floats (0.0-1.0 range)
const blue = RGBA.fromValues(0.0, 0.0, 1.0, 1.0) // r, g, b, a
const overlay = RGBA.fromValues(0.1, 0.1, 0.1, 0.7) // Dark semi-transparent
// Common use cases
const backgroundColor = RGBA.fromHex("#1a1a2e")
const textColor = RGBA.fromHex("#FFFFFF")
const borderColor = RGBA.fromInts(122, 162, 247, 255) // Tokyo Night blue
const shadowColor = RGBA.fromValues(0.0, 0.0, 0.0, 0.5) // 50% black
```
**When to use each method:**
- `fromHex()` - When working with design specs or CSS colors
- `fromInts()` - When you have 8-bit color values (0-255)
- `fromValues()` - When doing color math or interpolation (normalized 0.0-1.0)
### Using RGBA in React/Solid
```tsx
// React or Solid - RGBA works with color props
import { RGBA } from "@opentui/core"
const primaryColor = RGBA.fromHex("#7aa2f7")
function MyComponent() {
return (
<box backgroundColor={primaryColor} borderColor={primaryColor}>
<text fg={RGBA.fromHex("#c0caf5")}>Styled with RGBA</text>
</box>
)
}
```
Most props that accept color strings (`"#FF0000"`, `"red"`) also accept `RGBA` objects directly.
## Text Wrapping
Text wraps based on parent container:
```tsx
<box width={40}>
<text>
This long text will wrap when it reaches the edge of the
40-character wide parent container.
</text>
</box>
```
## Dynamic Content
### React
```tsx
function Counter() {
const [count, setCount] = useState(0)
return <text>Count: {count}</text>
}
```
### Solid
```tsx
function Counter() {
const [count, setCount] = createSignal(0)
return <text>Count: {count()}</text>
}
```
### Core
```typescript
const text = new TextRenderable(renderer, {
id: "counter",
content: "Count: 0",
})
// Update later
text.setContent("Count: 1")
```
## Gotchas
### Text Modifiers Outside Text
```tsx
// WRONG - modifiers only work inside <text>
<box>
<strong>Won't work</strong>
</box>
// CORRECT
<box>
<text>
<strong>This works</strong>
</text>
</box>
```
### Empty Text
```tsx
// May cause layout issues
<text></text>
// Better - use space or conditional
<text>{content || " "}</text>
```
### Color Format
```tsx
// WRONG
<text fg="FF0000">Missing #</text>
// CORRECT
<text fg="#FF0000">With #</text>
```
@@ -1,145 +0,0 @@
# OpenTUI Core (@opentui/core)
The foundational library for building terminal user interfaces. Provides an imperative API with all primitives, giving you maximum control over rendering, state, and behavior.
## Overview
OpenTUI Core runs on Bun with native Zig bindings for performance-critical operations:
- **Renderer**: Manages terminal output, input events, and the rendering loop
- **Renderables**: Hierarchical UI building blocks with Yoga layout
- **Constructs**: Declarative wrappers for composing Renderables
- **FrameBuffer**: Low-level 2D rendering surface for custom graphics
## When to Use Core
Use the core imperative API when:
- Building a library or framework on top of OpenTUI
- Need maximum control over rendering and state
- Want smallest possible bundle size (no React/Solid runtime)
- Building performance-critical applications
- Integrating with existing imperative codebases
## When NOT to Use Core
| Scenario | Use Instead |
|----------|-------------|
| Familiar with React patterns | `@opentui/react` |
| Want fine-grained reactivity | `@opentui/solid` |
| Building typical applications | React or Solid reconciler |
| Rapid prototyping | React or Solid reconciler |
## Quick Start
### Using create-tui (Recommended)
```bash
bunx create-tui@latest -t core my-app
cd my-app
bun run src/index.ts
```
The CLI creates the `my-app` directory for you - it must **not already exist**.
**Agent guidance**: Always use autonomous mode with `-t <template>` flag. Never use interactive mode (`bunx create-tui@latest my-app` without `-t`) as it requires user prompts that agents cannot respond to.
### Manual Setup
```bash
mkdir my-tui && cd my-tui
bun init
bun install @opentui/core
```
```typescript
import { createCliRenderer, TextRenderable, BoxRenderable } from "@opentui/core"
const renderer = await createCliRenderer()
// Create a box container
const container = new BoxRenderable(renderer, {
id: "container",
width: 40,
height: 10,
border: true,
borderStyle: "rounded",
padding: 1,
})
// Create text inside the box
const greeting = new TextRenderable(renderer, {
id: "greeting",
content: "Hello, OpenTUI!",
fg: "#00FF00",
})
// Compose the tree
container.add(greeting)
renderer.root.add(container)
```
## Core Concepts
### Renderer
The `CliRenderer` orchestrates everything:
- Manages the terminal viewport and alternate screen
- Handles input events (keyboard, mouse, paste)
- Runs the rendering loop (configurable FPS)
- Provides the root node for the renderable tree
### Renderables vs Constructs
| Renderables (Imperative) | Constructs (Declarative) |
|--------------------------|--------------------------|
| `new TextRenderable(renderer, {...})` | `Text({...})` |
| Requires renderer at creation | Creates VNode, instantiated later |
| Direct mutation via methods | Chained calls recorded, replayed on instantiation |
| Full control | Cleaner composition |
### Storage Options
Renderables can be composed in two ways:
1. **Imperative**: Create instances, call `.add()` to compose
2. **Declarative (Constructs)**: Create VNodes, pass children as arguments
## Essential Commands
```bash
bun install @opentui/core # Install
bun run src/index.ts # Run directly (no build needed)
bun test # Run tests
```
## Runtime Requirements
OpenTUI runs on Bun and uses Zig for native builds.
```bash
# Package management
bun install @opentui/core
# Running
bun run src/index.ts
bun test
# Building (only needed for native code changes)
bun run build
```
**Zig** is required for building native components.
## In This Reference
- [Configuration](./configuration.md) - Renderer options, environment variables
- [API](./api.md) - Renderer, Renderables, types, utilities
- [Patterns](./patterns.md) - Composition, events, state management
- [Gotchas](./gotchas.md) - Common issues, debugging, limitations
## See Also
- [React](../react/REFERENCE.md) - React reconciler for declarative TUI
- [Solid](../solid/REFERENCE.md) - Solid reconciler for declarative TUI
- [Layout](../layout/REFERENCE.md) - Yoga/Flexbox layout system
- [Components](../components/REFERENCE.md) - Component reference by category
- [Keyboard](../keyboard/REFERENCE.md) - Input handling and shortcuts
- [Testing](../testing/REFERENCE.md) - Test renderer and snapshots
@@ -1,543 +0,0 @@
# Core API Reference
## Renderer
### createCliRenderer(config?)
Creates and initializes the CLI renderer.
```typescript
import { createCliRenderer, type CliRendererConfig } from "@opentui/core"
const renderer = await createCliRenderer({
targetFPS: 60, // Target frames per second
exitOnCtrlC: true, // Exit process on Ctrl+C
consoleOptions: { // Debug console overlay
position: ConsolePosition.BOTTOM,
sizePercent: 30,
startInDebugMode: false,
},
onDestroy: () => {}, // Cleanup callback
})
```
### CliRenderer Instance
```typescript
renderer.root // Root renderable node
renderer.width // Terminal width in columns
renderer.height // Terminal height in rows
renderer.keyInput // Keyboard event emitter
renderer.console // Console overlay controller
renderer.start() // Start render loop
renderer.stop() // Stop render loop
renderer.destroy() // Cleanup and exit alternate screen
renderer.requestRender() // Request a re-render
renderer.setCursorStyle(options) // Set cursor style
renderer.setCursorColor(color) // Set cursor color
renderer.setMousePointer(style) // Set mouse pointer shape
```
### Cursor & Mouse Pointer
```typescript
import { type CursorStyleOptions, type MousePointerStyle } from "@opentui/core"
// Set cursor style (options object)
renderer.setCursorStyle({
style: "block", // "block" | "line" | "underline" | "default"
blinking: true, // Cursor blink
color: RGBA.fromHex("#FF0000"), // Cursor color
cursor: "pointer", // Mouse pointer shape
})
// Set mouse pointer shape (OSC 22)
renderer.setMousePointer("pointer")
// Available: "default" | "pointer" | "text" | "crosshair" | "move" | "not-allowed"
```
### Renderer Events
```typescript
renderer.on("resize", (width, height) => {}) // Terminal resized
renderer.on("focus", () => {}) // Terminal window gained focus
renderer.on("blur", () => {}) // Terminal window lost focus
renderer.on("theme_mode", (mode) => {}) // "dark" | "light"
renderer.on("capabilities", (caps) => {}) // Terminal capabilities detected
renderer.on("selection", (selection) => {}) // Text selection finished (mouse-up)
renderer.on("destroy", () => {}) // Renderer destroyed
renderer.on("memory:snapshot", (snapshot) => {}) // Memory snapshot
renderer.on("debugOverlay:toggle", () => {}) // Debug overlay toggled
```
### Console Overlay
```typescript
renderer.console.show() // Show console overlay
renderer.console.hide() // Hide console overlay
renderer.console.toggle() // Toggle visibility/focus
renderer.console.clear() // Clear console contents
```
## Renderables
All renderables extend the base `Renderable` class and share common properties.
### Common Properties
```typescript
interface CommonProps {
id?: string // Unique identifier
// Positioning
position?: "relative" | "absolute"
left?: number | string
top?: number | string
right?: number | string
bottom?: number | string
// Dimensions
width?: number | string | "auto"
height?: number | string | "auto"
minWidth?: number
minHeight?: number
maxWidth?: number
maxHeight?: number
// Flexbox
flexDirection?: "row" | "column" | "row-reverse" | "column-reverse"
flexGrow?: number
flexShrink?: number
flexBasis?: number | string
flexWrap?: "nowrap" | "wrap" | "wrap-reverse"
justifyContent?: "flex-start" | "flex-end" | "center" | "space-between" | "space-around" | "space-evenly"
alignItems?: "flex-start" | "flex-end" | "center" | "stretch" | "baseline"
alignSelf?: "auto" | "flex-start" | "flex-end" | "center" | "stretch" | "baseline"
alignContent?: "flex-start" | "flex-end" | "center" | "stretch" | "space-between" | "space-around"
// Spacing
padding?: number
paddingTop?: number
paddingRight?: number
paddingBottom?: number
paddingLeft?: number
margin?: number
marginTop?: number
marginRight?: number
marginBottom?: number
marginLeft?: number
gap?: number
// Display
display?: "flex" | "none"
overflow?: "visible" | "hidden" | "scroll"
zIndex?: number
}
```
### Renderable Methods
```typescript
renderable.add(child) // Add child renderable
renderable.remove(child) // Remove child renderable
renderable.getRenderable(id) // Find child by ID
renderable.focus() // Focus this renderable
renderable.blur() // Remove focus
renderable.destroy() // Destroy and cleanup
renderable.on(event, handler) // Add event listener
renderable.off(event, handler) // Remove event listener
renderable.emit(event, ...args) // Emit event
```
### TextRenderable
Display styled text content.
```typescript
import { TextRenderable, TextAttributes, t, bold, fg, underline } from "@opentui/core"
const text = new TextRenderable(renderer, {
id: "text",
content: "Hello World",
fg: "#FFFFFF", // Foreground color
bg: "#000000", // Background color
attributes: TextAttributes.BOLD | TextAttributes.UNDERLINE,
selectable: true, // Allow text selection
})
// Styled text with template literals
const styled = new TextRenderable(renderer, {
content: t`${bold("Bold")} and ${fg("#FF0000")(underline("red underlined"))}`,
})
```
**TextAttributes flags:**
- `TextAttributes.BOLD`
- `TextAttributes.DIM`
- `TextAttributes.ITALIC`
- `TextAttributes.UNDERLINE`
- `TextAttributes.BLINK`
- `TextAttributes.INVERSE`
- `TextAttributes.HIDDEN`
- `TextAttributes.STRIKETHROUGH`
### BoxRenderable
Container with borders and layout.
```typescript
import { BoxRenderable } from "@opentui/core"
const box = new BoxRenderable(renderer, {
id: "box",
width: 40,
height: 10,
backgroundColor: "#1a1a2e",
border: true,
borderStyle: "single" | "double" | "rounded" | "bold" | "none",
borderColor: "#FFFFFF",
title: "Panel Title",
titleAlignment: "left" | "center" | "right",
onMouseDown: (event) => {},
onMouseUp: (event) => {},
onMouseMove: (event) => {},
})
```
### InputRenderable
Single-line text input.
```typescript
import { InputRenderable, InputRenderableEvents } from "@opentui/core"
const input = new InputRenderable(renderer, {
id: "input",
width: 30,
placeholder: "Enter text...",
value: "", // Initial value
backgroundColor: "#1a1a1a",
textColor: "#FFFFFF",
cursorColor: "#00FF00",
focusedBackgroundColor: "#2a2a2a",
})
input.on(InputRenderableEvents.CHANGE, (value: string) => {
console.log("Value:", value)
})
input.focus() // Must be focused to receive input
```
### SelectRenderable
List selection component.
```typescript
import { SelectRenderable, SelectRenderableEvents } from "@opentui/core"
const select = new SelectRenderable(renderer, {
id: "select",
width: 30,
height: 10,
options: [
{ name: "Option 1", description: "First option", value: "1" },
{ name: "Option 2", description: "Second option", value: "2" },
],
selectedIndex: 0,
})
// Called when Enter is pressed - selection confirmed
select.on(SelectRenderableEvents.ITEM_SELECTED, (index, option) => {
console.log("Selected:", option.name)
performAction(option)
})
// Called when navigating with arrow keys
select.on(SelectRenderableEvents.SELECTION_CHANGED, (index, option) => {
console.log("Browsing:", option.name)
showPreview(option)
})
select.focus() // Navigate with up/down/j/k, select with enter
```
**Event distinction:**
- `ITEM_SELECTED` - Enter key pressed, user confirms selection
- `SELECTION_CHANGED` - Arrow keys, user navigating/browsing options
### TabSelectRenderable
Horizontal tab selection.
```typescript
import { TabSelectRenderable, TabSelectRenderableEvents } from "@opentui/core"
const tabs = new TabSelectRenderable(renderer, {
id: "tabs",
width: 60,
options: [
{ name: "Home", description: "Dashboard" },
{ name: "Settings", description: "Configuration" },
],
tabWidth: 20,
})
// Called when Enter is pressed - tab selected
tabs.on(TabSelectRenderableEvents.ITEM_SELECTED, (index, option) => {
console.log("Tab selected:", option.name)
switchToTab(index)
})
// Called when navigating with arrow keys
tabs.on(TabSelectRenderableEvents.SELECTION_CHANGED, (index, option) => {
console.log("Browsing tab:", option.name)
})
tabs.focus() // Navigate with left/right/[/], select with enter
```
**Event distinction** (same as SelectRenderable):
- `ITEM_SELECTED` - Enter key pressed, user confirms tab
- `SELECTION_CHANGED` - Arrow keys, user navigating tabs
### ScrollBoxRenderable
Scrollable container.
```typescript
import { ScrollBoxRenderable } from "@opentui/core"
const scrollbox = new ScrollBoxRenderable(renderer, {
id: "scrollbox",
width: 40,
height: 20,
showScrollbar: true,
scrollbarOptions: {
showArrows: true,
trackOptions: {
foregroundColor: "#7aa2f7",
backgroundColor: "#414868",
},
},
})
// Add content that exceeds viewport
for (let i = 0; i < 100; i++) {
scrollbox.add(new TextRenderable(renderer, {
id: `line-${i}`,
content: `Line ${i}`,
}))
}
scrollbox.focus() // Scroll with arrow keys
```
### ASCIIFontRenderable
ASCII art text.
```typescript
import { ASCIIFontRenderable, RGBA } from "@opentui/core"
const title = new ASCIIFontRenderable(renderer, {
id: "title",
text: "OPENTUI",
font: "tiny" | "block" | "slick" | "shade",
color: RGBA.fromHex("#FFFFFF"),
})
```
### FrameBufferRenderable
Low-level 2D rendering surface.
```typescript
import { FrameBufferRenderable, RGBA } from "@opentui/core"
const canvas = new FrameBufferRenderable(renderer, {
id: "canvas",
width: 50,
height: 20,
})
// Direct pixel manipulation
canvas.frameBuffer.fillRect(10, 5, 20, 8, RGBA.fromHex("#FF0000"))
canvas.frameBuffer.drawText("Custom", 12, 7, RGBA.fromHex("#FFFFFF"))
canvas.frameBuffer.setCell(x, y, char, fg, bg)
```
## Constructs (VNode API)
Declarative wrappers that create VNodes instead of direct instances.
```typescript
import { Text, Box, Input, Select, instantiate, delegate } from "@opentui/core"
// Create VNode tree
const ui = Box(
{ border: true, padding: 1 },
Text({ content: "Hello" }),
Input({ placeholder: "Type here..." }),
)
// Instantiate onto renderer
renderer.root.add(ui)
// Delegate focus to nested element
const form = delegate(
{ focus: "email-input" },
Box(
{},
Text({ content: "Email:" }),
Input({ id: "email-input", placeholder: "you@example.com" }),
),
)
form.focus() // Focuses the input, not the box
```
## Colors (RGBA)
The `RGBA` class is exported from `@opentui/core` but works across **all frameworks** (Core, React, Solid). Use it for programmatic color manipulation.
### Creating Colors
```typescript
import { RGBA, parseColor } from "@opentui/core"
// From hex string (most common)
RGBA.fromHex("#FF0000") // Full hex
RGBA.fromHex("#F00") // Short hex
// From integers (0-255 range)
RGBA.fromInts(255, 0, 0, 255) // r, g, b, a - fully opaque red
RGBA.fromInts(255, 0, 0, 128) // 50% transparent red
RGBA.fromInts(0, 0, 0, 0) // Fully transparent
// From normalized floats (0.0-1.0 range)
RGBA.fromValues(1.0, 0.0, 0.0, 1.0) // Fully opaque red
RGBA.fromValues(0.1, 0.1, 0.1, 0.7) // Dark gray, 70% opaque
RGBA.fromValues(0.0, 0.5, 1.0, 1.0) // Light blue
```
### Common Color Patterns
```typescript
// Theme colors
const primary = RGBA.fromHex("#7aa2f7") // Tokyo Night blue
const background = RGBA.fromHex("#1a1a2e")
const foreground = RGBA.fromHex("#c0caf5")
const error = RGBA.fromHex("#f7768e")
// Overlays and shadows
const modalOverlay = RGBA.fromValues(0.0, 0.0, 0.0, 0.5) // 50% black
const shadow = RGBA.fromInts(0, 0, 0, 77) // 30% black
// Borders
const activeBorder = RGBA.fromHex("#7aa2f7")
const inactiveBorder = RGBA.fromInts(65, 72, 104, 255)
```
### parseColor Utility
```typescript
// Accepts multiple formats
parseColor("#FF0000") // Hex string
parseColor("red") // CSS color name
parseColor("transparent") // Special values
parseColor(RGBA.fromHex("#F00")) // Pass-through RGBA objects
```
### When to Use Each Method
| Method | Use When |
|--------|----------|
| `fromHex()` | Working with design specs, CSS colors, config files |
| `fromInts()` | You have 8-bit values (0-255), common in graphics |
| `fromValues()` | Doing color interpolation, animations, math |
| `parseColor()` | Accepting user input or config that could be any format |
### Using RGBA in React/Solid
```tsx
// Import from @opentui/core, use in any framework
import { RGBA } from "@opentui/core"
// React or Solid component
function ThemedBox() {
const bg = RGBA.fromHex("#1a1a2e")
const border = RGBA.fromInts(122, 162, 247, 255)
return (
<box backgroundColor={bg} borderColor={border} border>
<text fg={RGBA.fromHex("#c0caf5")}>Works everywhere!</text>
</box>
)
}
```
Color props in React/Solid accept both string formats (`"#FF0000"`, `"red"`) and `RGBA` objects.
## Keyboard Input
```typescript
import { type KeyEvent } from "@opentui/core"
renderer.keyInput.on("keypress", (key: KeyEvent) => {
console.log(key.name) // "a", "escape", "f1", etc.
console.log(key.sequence) // Raw escape sequence
console.log(key.ctrl) // Ctrl held
console.log(key.shift) // Shift held
console.log(key.meta) // Alt held
console.log(key.option) // Option held (macOS)
console.log(key.eventType) // "press" | "release" | "repeat"
})
renderer.keyInput.on("paste", (event: PasteEvent) => {
const text = decodePasteBytes(event.bytes)
console.log("Pasted:", text)
})
```
## Animation Timeline
```typescript
import { Timeline, engine } from "@opentui/core"
const timeline = new Timeline({
duration: 2000,
loop: false,
autoplay: true,
})
timeline.add(
{ width: 0 },
{
width: 50,
duration: 1000,
ease: "easeOutQuad",
onUpdate: (anim) => {
box.setWidth(anim.targets[0].width)
},
},
)
engine.attach(renderer)
engine.addTimeline(timeline)
```
## Type Exports
```typescript
import type {
CliRenderer,
CliRendererConfig,
RenderContext,
KeyEvent,
Renderable,
// ... and more
} from "@opentui/core"
```
@@ -1,168 +0,0 @@
# Core Configuration
## Renderer Configuration
### createCliRenderer Options
```typescript
import { createCliRenderer, ConsolePosition } from "@opentui/core"
const renderer = await createCliRenderer({
// Rendering
targetFPS: 60, // Target frames per second (default: 60)
// Behavior
exitOnCtrlC: true, // Exit on Ctrl+C (default: true)
// Console overlay
consoleOptions: {
position: ConsolePosition.BOTTOM, // BOTTOM | TOP | LEFT | RIGHT
sizePercent: 30, // Percentage of screen
colorInfo: "#00FFFF",
colorWarn: "#FFFF00",
colorError: "#FF0000",
colorDebug: "#888888",
startInDebugMode: false,
},
// Lifecycle
onDestroy: () => {
// Cleanup callback
},
})
```
## Environment Variables
OpenTUI respects several environment variables for configuration and debugging.
### Debug & Development
| Variable | Type | Default | Description |
|----------|------|---------|-------------|
| `OTUI_DEBUG` | boolean | false | Enable debug mode, capture raw input |
| `OTUI_DEBUG_FFI` | boolean | false | Debug logging for FFI bindings |
| `OTUI_TRACE_FFI` | boolean | false | Tracing for FFI bindings |
| `OTUI_SHOW_STATS` | boolean | false | Show debug overlay at startup |
| `OTUI_DUMP_CAPTURES` | boolean | false | Dump captured output on exit |
### Console
| Variable | Type | Default | Description |
|----------|------|---------|-------------|
| `OTUI_USE_CONSOLE` | boolean | true | Enable console capture |
| `SHOW_CONSOLE` | boolean | false | Show console at startup |
### Rendering
| Variable | Type | Default | Description |
|----------|------|---------|-------------|
| `OTUI_NO_NATIVE_RENDER` | boolean | false | Disable ANSI output (for debugging) |
| `OTUI_USE_ALTERNATE_SCREEN` | boolean | true | Use alternate screen buffer |
| `OTUI_OVERRIDE_STDOUT` | boolean | true | Override stdout stream |
### Terminal Capabilities
| Variable | Type | Default | Description |
|----------|------|---------|-------------|
| `OPENTUI_NO_GRAPHICS` | boolean | false | Disable Kitty graphics protocol |
| `OPENTUI_FORCE_UNICODE` | boolean | false | Force Mode 2026 Unicode support |
| `OPENTUI_FORCE_WCWIDTH` | boolean | false | Use wcwidth for character width |
| `OPENTUI_FORCE_NOZWJ` | boolean | false | Disable ZWJ emoji joining |
| `OPENTUI_FORCE_EXPLICIT_WIDTH` | string | - | Force explicit width ("true"/"false") |
### Tree-sitter (Syntax Highlighting)
| Variable | Type | Default | Description |
|----------|------|---------|-------------|
| `OTUI_TS_STYLE_WARN` | boolean | false | Warn on missing syntax styles |
| `OTUI_TREE_SITTER_WORKER_PATH` | string | "" | Custom tree-sitter worker path |
### XDG Paths
| Variable | Type | Default | Description |
|----------|------|---------|-------------|
| `XDG_CONFIG_HOME` | string | "" | User config directory |
| `XDG_DATA_HOME` | string | "" | User data directory |
## Usage Examples
### Development Mode
```bash
# Show debug overlay and console
OTUI_SHOW_STATS=true SHOW_CONSOLE=true bun run src/index.ts
# Debug FFI issues
OTUI_DEBUG_FFI=true OTUI_TRACE_FFI=true bun run src/index.ts
# Disable native rendering for testing
OTUI_NO_NATIVE_RENDER=true bun run src/index.ts
```
### Terminal Compatibility
```bash
# Force wcwidth for problematic terminals
OPENTUI_FORCE_WCWIDTH=true bun run src/index.ts
# Disable graphics for SSH sessions
OPENTUI_NO_GRAPHICS=true bun run src/index.ts
```
## Project Setup
### package.json
```json
{
"name": "my-tui-app",
"type": "module",
"scripts": {
"start": "bun run src/index.ts",
"dev": "bun --watch run src/index.ts",
"test": "bun test"
},
"dependencies": {
"@opentui/core": "latest"
},
"devDependencies": {
"@types/bun": "latest",
"typescript": "latest"
}
}
```
### tsconfig.json
```json
{
"compilerOptions": {
"lib": ["ESNext"],
"target": "ESNext",
"module": "NodeNext",
"moduleResolution": "NodeNext",
"strict": true,
"skipLibCheck": true,
"noEmit": true,
"types": ["bun-types"]
},
"include": ["src/**/*"]
}
```
> **Note**: OpenTUI uses `NodeNext` module resolution. All internal imports use `.js` extensions. If you use `bundler` resolution, imports still work but `NodeNext` is recommended for compatibility.
## Building Native Code
Native code changes require rebuilding:
```bash
# From repo root (if developing OpenTUI itself)
bun run build
# Zig is required for native compilation
# Install: https://ziglang.org/learn/getting-started/
```
**Note**: TypeScript changes do NOT require building. Bun runs TypeScript directly.
@@ -1,393 +0,0 @@
# Core Gotchas
## Runtime Environment
### Use Bun, Not Node.js
OpenTUI is built for Bun. Always use Bun commands:
```bash
# CORRECT
bun install @opentui/core
bun run src/index.ts
bun test
# WRONG
npm install @opentui/core
node src/index.ts
npx jest
```
### Bun APIs to Use
Prefer Bun's built-in APIs for your application code:
```typescript
// CORRECT - Bun APIs
Bun.serve({ ... }) // Instead of express
Bun.$`ls -la` // Instead of execa
import { Database } from "bun:sqlite" // Instead of better-sqlite3
// WRONG - Node.js patterns
import express from "express"
```
> **Note**: OpenTUI itself uses `node:fs` internally for file I/O (for broader compatibility), but your application code should still prefer Bun APIs where available.
### Avoid process.exit()
**Never use `process.exit()` directly** - it prevents proper terminal cleanup and can leave the terminal in a broken state (alternate screen mode, raw input mode, etc.).
```typescript
// WRONG - Terminal may be left in broken state
if (error) {
console.error("Fatal error")
process.exit(1)
}
// CORRECT - Use renderer.destroy() for cleanup
if (error) {
console.error("Fatal error")
await renderer.destroy()
process.exit(1) // Only after destroy
}
// BETTER - Let destroy handle exit
const renderer = await createCliRenderer({
exitOnCtrlC: true, // Handles Ctrl+C properly
})
// For programmatic exit
renderer.destroy() // Cleans up and exits
```
`renderer.destroy()` restores the terminal to its original state before exiting.
### Environment Variables
Bun auto-loads `.env` files. Don't use dotenv:
```typescript
// CORRECT
const apiKey = process.env.API_KEY
// WRONG
import dotenv from "dotenv"
dotenv.config()
```
## Debugging TUIs
### Cannot See console.log Output
OpenTUI captures console output for the debug overlay. You can't see logs in the terminal while the TUI is running.
**Solutions:**
1. **Use the console overlay:**
```typescript
const renderer = await createCliRenderer()
renderer.console.show()
console.log("This appears in the overlay")
```
2. **Toggle with keyboard:**
```typescript
renderer.keyInput.on("keypress", (key) => {
if (key.name === "f12") {
renderer.console.toggle()
}
})
```
3. **Write to a file:**
```typescript
import { appendFileSync } from "node:fs"
function debugLog(msg: string) {
appendFileSync("debug.log", `${new Date().toISOString()} ${msg}\n`)
}
```
4. **Disable console capture:**
```bash
OTUI_USE_CONSOLE=false bun run src/index.ts
```
### Reproduce Issues in Tests
Don't guess at bugs. Create a reproducible test:
```typescript
import { test, expect } from "bun:test"
import { createTestRenderer } from "@opentui/core/testing"
test("reproduces the issue", async () => {
const { renderer, snapshot } = await createTestRenderer({
width: 40,
height: 10,
})
// Setup that reproduces the bug
const box = new BoxRenderable(renderer, { ... })
renderer.root.add(box)
// Verify with snapshot
expect(snapshot()).toMatchSnapshot()
})
```
## Focus Management
### Components Must Be Focused
Input components only receive keyboard input when focused:
```typescript
const input = new InputRenderable(renderer, {
id: "input",
placeholder: "Type here...",
})
renderer.root.add(input)
// WRONG - input won't receive keystrokes
// (no focus call)
// CORRECT
input.focus()
```
### Focus in Nested Components
When a component is inside a container, focus the component directly:
```typescript
const container = new BoxRenderable(renderer, { id: "container" })
const input = new InputRenderable(renderer, { id: "input" })
container.add(input)
renderer.root.add(container)
// WRONG
container.focus()
// CORRECT
input.focus()
// Or use getRenderable
container.getRenderable("input")?.focus()
// Or use delegate (constructs)
const form = delegate(
{ focus: "input" },
Box({}, Input({ id: "input" })),
)
form.focus() // Routes to the input
```
## Build Requirements
### Zig is Required
Native code compilation requires Zig:
```bash
# Install Zig first
# macOS
brew install zig
# Linux
# Download from https://ziglang.org/download/
# Then build
bun run build
```
### When to Build
- **TypeScript changes**: NO build needed (Bun runs TS directly)
- **Native code changes**: Build required
```bash
# Only needed when changing native (Zig) code
cd packages/core
bun run build
```
## Common Errors
### "Cannot read properties of undefined"
Usually means a renderable wasn't added to the tree:
```typescript
// WRONG - not added to tree
const text = new TextRenderable(renderer, { content: "Hello" })
// text.someMethod() // May fail
// CORRECT
const text = new TextRenderable(renderer, { content: "Hello" })
renderer.root.add(text)
text.someMethod()
```
### Layout Not Updating
Yoga layout is calculated lazily. Force a recalculation:
```typescript
// After changing layout properties
box.setWidth(newWidth)
renderer.requestRender()
```
### Text Overflow/Clipping
Text doesn't wrap by default. Set explicit width:
```typescript
// May overflow
const text = new TextRenderable(renderer, {
content: "Very long text that might overflow the terminal...",
})
// Contained within width
const text = new TextRenderable(renderer, {
content: "Very long text that might overflow the terminal...",
width: 40, // Will clip or wrap based on parent
})
```
### Colors Not Showing
Check terminal capability and color format:
```typescript
// CORRECT formats
fg: "#FF0000" // Hex
fg: "red" // CSS color name
fg: RGBA.fromHex("#FF0000")
// WRONG
fg: "FF0000" // Missing #
fg: 0xFF0000 // Number (not supported)
```
## Performance
### Avoid Frequent Re-renders
Batch updates when possible:
```typescript
// WRONG - multiple render calls
item1.setContent("...")
item2.setContent("...")
item3.setContent("...")
// BETTER - single render after all updates
// (OpenTUI batches automatically, but be mindful)
items.forEach((item, i) => {
item.setContent(data[i])
})
```
### Minimize Tree Depth
Deep nesting impacts layout calculation:
```typescript
// Avoid unnecessary wrappers
// WRONG
Box({}, Box({}, Box({}, Text({ content: "Hello" }))))
// CORRECT
Box({}, Text({ content: "Hello" }))
```
### Use display: none
Hide elements instead of removing/re-adding:
```typescript
// For toggling visibility
element.setDisplay("none") // Hidden
element.setDisplay("flex") // Visible
// Instead of
parent.remove(element)
parent.add(element)
```
## Testing
### Test Runner
Use Bun's test runner:
```typescript
import { test, expect, beforeEach, afterEach } from "bun:test"
test("my test", () => {
expect(1 + 1).toBe(2)
})
```
### Test from Package Directories
Run tests from the specific package directory:
```bash
# CORRECT
cd packages/core
bun test
# For native tests
cd packages/core
bun run test:native
```
### Filter Tests
```bash
# Bun test filter
bun test --filter "component name"
# Native test filter
bun run test:native -Dtest-filter="test name"
```
## Keyboard Handling
### Key Names
Common key names for `KeyEvent.name`:
```typescript
// Letters/numbers
"a", "b", ..., "z"
"1", "2", ..., "0"
// Special keys
"escape", "enter", "return", "tab", "backspace", "delete"
"up", "down", "left", "right"
"home", "end", "pageup", "pagedown"
"f1", "f2", ..., "f12"
"space"
// Modifiers (check boolean properties)
key.ctrl // Ctrl held
key.shift // Shift held
key.meta // Alt held
key.option // Option held (macOS)
```
### Key Event Types
```typescript
renderer.keyInput.on("keypress", (key) => {
// eventType: "press" | "release" | "repeat"
if (key.eventType === "repeat") {
// Key being held down
}
})
```
@@ -1,449 +0,0 @@
# Core Patterns
## Composition Patterns
### Imperative Composition
Create renderables and compose with `.add()`:
```typescript
import { createCliRenderer, BoxRenderable, TextRenderable } from "@opentui/core"
const renderer = await createCliRenderer()
// Create parent
const container = new BoxRenderable(renderer, {
id: "container",
flexDirection: "column",
padding: 1,
})
// Create children
const header = new TextRenderable(renderer, {
id: "header",
content: "Header",
fg: "#00FF00",
})
const body = new TextRenderable(renderer, {
id: "body",
content: "Body content",
})
// Compose tree
container.add(header)
container.add(body)
renderer.root.add(container)
```
### Declarative Composition (Constructs)
Use VNode functions for cleaner composition:
```typescript
import { createCliRenderer, Box, Text, Input, delegate } from "@opentui/core"
const renderer = await createCliRenderer()
// Compose as function calls
const ui = Box(
{ flexDirection: "column", padding: 1 },
Text({ content: "Header", fg: "#00FF00" }),
Box(
{ flexDirection: "row", gap: 2 },
Text({ content: "Name:" }),
Input({ id: "name", placeholder: "Enter name..." }),
),
)
renderer.root.add(ui)
```
### Reusable Components
Create factory functions for reusable UI pieces:
```typescript
// Imperative factory
function createLabeledInput(
renderer: RenderContext,
props: { id: string; label: string; placeholder: string }
) {
const container = new BoxRenderable(renderer, {
id: `${props.id}-container`,
flexDirection: "row",
gap: 1,
})
container.add(new TextRenderable(renderer, {
id: `${props.id}-label`,
content: props.label,
}))
container.add(new InputRenderable(renderer, {
id: `${props.id}-input`,
placeholder: props.placeholder,
width: 20,
}))
return container
}
// Declarative factory
function LabeledInput(props: { id: string; label: string; placeholder: string }) {
return delegate(
{ focus: `${props.id}-input` },
Box(
{ flexDirection: "row", gap: 1 },
Text({ content: props.label }),
Input({
id: `${props.id}-input`,
placeholder: props.placeholder,
width: 20,
}),
),
)
}
```
### Focus Delegation
Route focus calls to nested elements:
```typescript
import { delegate, Box, Input, Text } from "@opentui/core"
const form = delegate(
{
focus: "email-input", // Route .focus() to this child
blur: "email-input", // Route .blur() to this child
},
Box(
{ border: true, padding: 1 },
Text({ content: "Email:" }),
Input({ id: "email-input", placeholder: "you@example.com" }),
),
)
// This focuses the input inside, not the box
form.focus()
```
## Event Handling
### Keyboard Events
```typescript
const renderer = await createCliRenderer()
// Global keyboard handler
renderer.keyInput.on("keypress", (key) => {
if (key.name === "escape") {
renderer.destroy()
process.exit(0)
}
if (key.ctrl && key.name === "c") {
// Ctrl+C handling (if exitOnCtrlC is false)
}
if (key.name === "tab") {
// Tab navigation
focusNext()
}
})
// Paste events
renderer.keyInput.on("paste", (event) => {
const text = decodePasteBytes(event.bytes)
currentInput?.setValue(currentInput.value + text)
})
```
### Component Events
```typescript
import { InputRenderable, InputRenderableEvents } from "@opentui/core"
const input = new InputRenderable(renderer, {
id: "search",
placeholder: "Search...",
})
input.on(InputRenderableEvents.CHANGE, (value) => {
performSearch(value)
})
// Select events
const select = new SelectRenderable(renderer, {
id: "menu",
options: [...],
})
select.on(SelectRenderableEvents.ITEM_SELECTED, (index, option) => {
handleSelection(option)
})
select.on(SelectRenderableEvents.SELECTION_CHANGED, (index, option) => {
showPreview(option)
})
```
### Mouse Events
```typescript
const button = new BoxRenderable(renderer, {
id: "button",
border: true,
onMouseDown: (event) => {
button.setBackgroundColor("#444444")
},
onMouseUp: (event) => {
button.setBackgroundColor("#222222")
handleClick()
},
onMouseMove: (event) => {
// Hover effect
},
})
```
## State Management
### Local State
Manage state in closures or objects:
```typescript
// Closure-based state
function createCounter(renderer: RenderContext) {
let count = 0
const display = new TextRenderable(renderer, {
id: "count",
content: `Count: ${count}`,
})
const increment = () => {
count++
display.setContent(`Count: ${count}`)
}
return { display, increment }
}
// Class-based state
class CounterWidget {
private count = 0
private display: TextRenderable
constructor(renderer: RenderContext) {
this.display = new TextRenderable(renderer, {
id: "count",
content: this.formatCount(),
})
}
private formatCount() {
return `Count: ${this.count}`
}
increment() {
this.count++
this.display.setContent(this.formatCount())
}
getRenderable() {
return this.display
}
}
```
### Focus Management
Track and manage focus across components:
```typescript
class FocusManager {
private focusables: Renderable[] = []
private currentIndex = 0
register(renderable: Renderable) {
this.focusables.push(renderable)
}
focusNext() {
this.focusables[this.currentIndex]?.blur()
this.currentIndex = (this.currentIndex + 1) % this.focusables.length
this.focusables[this.currentIndex]?.focus()
}
focusPrevious() {
this.focusables[this.currentIndex]?.blur()
this.currentIndex = (this.currentIndex - 1 + this.focusables.length) % this.focusables.length
this.focusables[this.currentIndex]?.focus()
}
}
// Usage
const focusManager = new FocusManager()
focusManager.register(input1)
focusManager.register(input2)
focusManager.register(select1)
renderer.keyInput.on("keypress", (key) => {
if (key.name === "tab") {
key.shift ? focusManager.focusPrevious() : focusManager.focusNext()
}
})
```
## Lifecycle Patterns
### Cleanup
Always clean up resources:
```typescript
const renderer = await createCliRenderer()
// Track intervals/timeouts
const intervals: Timer[] = []
intervals.push(setInterval(() => {
updateClock()
}, 1000))
// Cleanup on exit
process.on("SIGINT", () => {
intervals.forEach(clearInterval)
renderer.destroy()
process.exit(0)
})
// Or use onDestroy callback
const renderer = await createCliRenderer({
onDestroy: () => {
intervals.forEach(clearInterval)
},
})
```
### Dynamic Updates
Update UI based on external data:
```typescript
async function createDashboard(renderer: RenderContext) {
const statsText = new TextRenderable(renderer, {
id: "stats",
content: "Loading...",
})
// Poll for updates
const updateStats = async () => {
const data = await fetchStats()
statsText.setContent(`CPU: ${data.cpu}% | Memory: ${data.memory}%`)
}
// Initial load
await updateStats()
// Periodic updates
setInterval(updateStats, 5000)
return statsText
}
```
## Layout Patterns
### Responsive Layout
Adapt to terminal size:
```typescript
const renderer = await createCliRenderer()
const mainPanel = new BoxRenderable(renderer, {
id: "main",
width: "100%",
height: "100%",
flexDirection: renderer.width > 80 ? "row" : "column",
})
// Listen for resize
process.stdout.on("resize", () => {
mainPanel.setFlexDirection(renderer.width > 80 ? "row" : "column")
})
```
### Split Panels
```typescript
function createSplitView(renderer: RenderContext, ratio = 0.3) {
const container = new BoxRenderable(renderer, {
id: "split",
flexDirection: "row",
width: "100%",
height: "100%",
})
const left = new BoxRenderable(renderer, {
id: "left",
width: `${ratio * 100}%`,
border: true,
})
const right = new BoxRenderable(renderer, {
id: "right",
flexGrow: 1,
border: true,
})
container.add(left)
container.add(right)
return { container, left, right }
}
```
## Debugging Patterns
### Console Overlay
Use the built-in console for debugging:
```typescript
const renderer = await createCliRenderer({
consoleOptions: {
startInDebugMode: true,
},
})
// Show console
renderer.console.show()
// All console methods work
console.log("Debug info")
console.warn("Warning")
console.error("Error")
// Toggle with keyboard
renderer.keyInput.on("keypress", (key) => {
if (key.name === "f12") {
renderer.console.toggle()
}
})
```
### State Inspection
```typescript
function debugState(label: string, state: unknown) {
console.log(`[${label}]`, JSON.stringify(state, null, 2))
}
// In your update logic
debugState("form", { name: nameInput.value, email: emailInput.value })
```
@@ -1,617 +0,0 @@
# Keyboard Input Handling
How to handle keyboard input in OpenTUI applications.
## Overview
OpenTUI provides keyboard input handling through:
- **Core**: `renderer.keyInput` EventEmitter
- **React**: `useKeyboard()` hook
- **Solid**: `useKeyboard()` hook
## When to Use
Use this reference when you need keyboard shortcuts, focus-aware input handling, or custom keybindings.
## KeyEvent Object
All keyboard handlers receive a `KeyEvent` object:
```typescript
interface KeyEvent {
name: string // Key name: "a", "escape", "f1", etc.
sequence: string // Raw escape sequence
ctrl: boolean // Ctrl modifier held
shift: boolean // Shift modifier held
meta: boolean // Alt modifier held
option: boolean // Option modifier held (macOS)
eventType: "press" | "release" | "repeat"
repeated: boolean // Key is being held (repeat event)
}
```
## Basic Usage
### Core
```typescript
import { createCliRenderer, type KeyEvent } from "@opentui/core"
const renderer = await createCliRenderer()
renderer.keyInput.on("keypress", (key: KeyEvent) => {
if (key.name === "escape") {
renderer.destroy()
return
}
if (key.ctrl && key.name === "s") {
saveDocument()
}
})
```
### React
```tsx
import { useKeyboard, useRenderer } from "@opentui/react"
function App() {
const renderer = useRenderer()
useKeyboard((key) => {
if (key.name === "escape") {
renderer.destroy()
}
})
return <text>Press ESC to exit</text>
}
```
### Solid
```tsx
import { useKeyboard, useRenderer } from "@opentui/solid"
function App() {
const renderer = useRenderer()
useKeyboard((key) => {
if (key.name === "escape") {
renderer.destroy()
}
})
return <text>Press ESC to exit</text>
}
```
## Key Names
### Alphabetic Keys
Lowercase: `a`, `b`, `c`, ... `z`
With Shift: Check `key.shift && key.name === "a"` for uppercase
### Numeric Keys
`0`, `1`, `2`, ... `9`
### Function Keys
`f1`, `f2`, `f3`, ... `f12`
### Special Keys
| Key Name | Description |
|----------|-------------|
| `escape` | Escape key |
| `enter` | Enter/Return |
| `return` | Enter/Return (alias) |
| `tab` | Tab key |
| `backspace` | Backspace |
| `delete` | Delete key |
| `space` | Spacebar |
### Arrow Keys
| Key Name | Description |
|----------|-------------|
| `up` | Up arrow |
| `down` | Down arrow |
| `left` | Left arrow |
| `right` | Right arrow |
### Navigation Keys
| Key Name | Description |
|----------|-------------|
| `home` | Home key |
| `end` | End key |
| `pageup` | Page Up |
| `pagedown` | Page Down |
| `insert` | Insert key |
## Modifier Keys
Check modifier properties on `KeyEvent`:
```typescript
renderer.keyInput.on("keypress", (key) => {
if (key.ctrl && key.name === "c") {
// Ctrl+C
}
if (key.shift && key.name === "tab") {
// Shift+Tab
}
if (key.meta && key.name === "s") {
// Alt+S (meta = Alt on most systems)
}
if (key.option && key.name === "a") {
// Option+A (macOS)
}
})
```
### Modifier Combinations
```typescript
// Ctrl+Shift+S
if (key.ctrl && key.shift && key.name === "s") {
saveAs()
}
// Ctrl+Alt+Delete (careful with system shortcuts!)
if (key.ctrl && key.meta && key.name === "delete") {
// ...
}
```
## Event Types
### Press Events (Default)
Normal key press:
```typescript
renderer.keyInput.on("keypress", (key) => {
if (key.eventType === "press") {
// Initial key press
}
})
```
### Repeat Events
Key held down:
```typescript
renderer.keyInput.on("keypress", (key) => {
if (key.eventType === "repeat" || key.repeated) {
// Key is being held
}
})
```
### Release Events
Key released (opt-in):
```tsx
// React
useKeyboard(
(key) => {
if (key.eventType === "release") {
// Key released
}
},
{ release: true } // Enable release events
)
// Solid
useKeyboard(
(key) => {
if (key.eventType === "release") {
// Key released
}
},
{ release: true }
)
```
## Patterns
### Navigation Menu
```tsx
function Menu() {
const [selectedIndex, setSelectedIndex] = useState(0)
const items = ["Home", "Settings", "Help", "Quit"]
useKeyboard((key) => {
switch (key.name) {
case "up":
case "k":
setSelectedIndex(i => Math.max(0, i - 1))
break
case "down":
case "j":
setSelectedIndex(i => Math.min(items.length - 1, i + 1))
break
case "enter":
handleSelect(items[selectedIndex])
break
}
})
return (
<box flexDirection="column">
{items.map((item, i) => (
<text
key={item}
fg={i === selectedIndex ? "#00FF00" : "#FFFFFF"}
>
{i === selectedIndex ? "> " : " "}{item}
</text>
))}
</box>
)
}
```
### Modal Escape
```tsx
function Modal({ onClose, children }) {
useKeyboard((key) => {
if (key.name === "escape") {
onClose()
}
})
return (
<box border padding={2}>
{children}
</box>
)
}
```
### Vim-style Modes
```tsx
function Editor() {
const [mode, setMode] = useState<"normal" | "insert">("normal")
const [content, setContent] = useState("")
useKeyboard((key) => {
if (mode === "normal") {
switch (key.name) {
case "i":
setMode("insert")
break
case "escape":
// Already in normal mode
break
case "j":
moveCursorDown()
break
case "k":
moveCursorUp()
break
}
} else if (mode === "insert") {
if (key.name === "escape") {
setMode("normal")
}
// Input component handles text in insert mode
}
})
return (
<box flexDirection="column">
<text>Mode: {mode}</text>
<textarea
value={content}
onChange={setContent}
focused={mode === "insert"}
/>
</box>
)
}
```
### Game Controls
```tsx
function Game() {
const [pressed, setPressed] = useState(new Set<string>())
useKeyboard(
(key) => {
setPressed(keys => {
const newKeys = new Set(keys)
if (key.eventType === "release") {
newKeys.delete(key.name)
} else {
newKeys.add(key.name)
}
return newKeys
})
},
{ release: true }
)
// Game logic uses pressed set
useEffect(() => {
if (pressed.has("up") || pressed.has("w")) {
moveUp()
}
if (pressed.has("down") || pressed.has("s")) {
moveDown()
}
}, [pressed])
return <text>WASD or arrows to move</text>
}
```
### Keyboard Shortcuts Help
```tsx
function ShortcutsHelp() {
const shortcuts = [
{ keys: "Ctrl+S", action: "Save" },
{ keys: "Ctrl+Q", action: "Quit" },
{ keys: "Ctrl+F", action: "Find" },
{ keys: "Tab", action: "Next field" },
{ keys: "Shift+Tab", action: "Previous field" },
]
return (
<box border title="Keyboard Shortcuts" padding={1}>
{shortcuts.map(({ keys, action }) => (
<box key={keys} flexDirection="row">
<text width={15} fg="#00FFFF">{keys}</text>
<text>{action}</text>
</box>
))}
</box>
)
}
```
## Paste Events
Handle pasted content. Paste events deliver raw bytes, not decoded text.
### PasteEvent Object
```typescript
import { type PasteEvent } from "@opentui/core"
interface PasteEvent {
type: "paste" // Always "paste"
bytes: Uint8Array // Raw pasted bytes
metadata?: PasteMetadata // Optional metadata
preventDefault(): void // Prevent default paste handling
defaultPrevented: boolean // Whether preventDefault was called
}
interface PasteMetadata {
mimeType?: string // MIME type if available
kind?: PasteKind // Paste kind
}
```
### Decoding Paste Bytes
Use `decodePasteBytes` to convert raw bytes to a string, and `stripAnsiSequences` to remove ANSI escape codes:
```typescript
import { decodePasteBytes, stripAnsiSequences } from "@opentui/core"
const text = decodePasteBytes(event.bytes) // Decode UTF-8
const clean = stripAnsiSequences(decodePasteBytes(event.bytes)) // Decode + strip ANSI
```
### Core
```typescript
import { type PasteEvent, decodePasteBytes } from "@opentui/core"
renderer.keyInput.on("paste", (event: PasteEvent) => {
const text = decodePasteBytes(event.bytes)
console.log("Pasted:", text)
})
```
### Solid
Solid provides a dedicated `usePaste` hook:
```tsx
import { usePaste } from "@opentui/solid"
import { decodePasteBytes } from "@opentui/core"
function App() {
usePaste((event) => {
const text = decodePasteBytes(event.bytes)
console.log("Pasted:", text)
})
return <text>Paste something</text>
}
```
> **Note**: `usePaste` is **Solid-only**. React does not have this hook - handle paste via the Core event emitter or input component's `onChange`.
## Text Selection
Text selection is renderer-managed. The renderer owns a single `Selection` object, walks the renderable tree to find selectable children, and emits a `"selection"` event when the user finishes selecting (mouse-up). The `Selection` object aggregates text from all selected renderables automatically.
### Making Renderables Selectable
A renderable must have `selectable` set to `true` to participate in selection. Text-based renderables (`TextRenderable`, `TextareaRenderable`, `ASCIIFontRenderable`, `TextTableRenderable`) support this:
```tsx
// React / Solid
<text selectable>This text can be selected</text>
// Core
const text = new TextRenderable(renderer, {
id: "label",
content: "This text can be selected",
selectable: true,
})
```
### Copy-on-Selection (Core)
Listen to the renderer's `"selection"` event. The `Selection` object's `getSelectedText()` returns text aggregated from all selected renderables in reading order:
```typescript
import type { Selection } from "@opentui/core"
renderer.on("selection", (selection: Selection) => {
const text = selection.getSelectedText()
if (text) {
renderer.copyToClipboardOSC52(text)
}
})
```
> **Important**: Call `selection.getSelectedText()` on the `Selection` object from the event -- not `renderer.root.getSelectedText()`. Individual renderables only return their own selected text. The `Selection` object aggregates across the tree.
### Copy-on-Selection (Solid)
```tsx
import { useSelectionHandler } from "@opentui/solid"
function App() {
useSelectionHandler((selection) => {
const text = selection.getSelectedText()
if (text) {
renderer.copyToClipboardOSC52(text)
}
})
return <text selectable>Select this text</text>
}
```
> **Note**: `useSelectionHandler` is **Solid-only**. React does not have this hook -- use the Core `renderer.on("selection", ...)` event.
### Selection Object
The `Selection` object passed to the event callback:
```typescript
selection.getSelectedText() // Aggregated text from all selected renderables
selection.bounds // { startX, startY, endX, endY } bounding rect
selection.selectedRenderables // Renderable[] with active selections
selection.isActive // Whether selection is still active
```
Individual renderables also expose:
```typescript
renderable.hasSelection() // Does this renderable have selected text?
renderable.getSelectedText() // Selected text in this renderable only
```
### How Selection Traversal Works
When the user drags to select, the renderer:
1. Identifies the selection container (common ancestor of start and end points)
2. Walks all `selectable` descendants within the selection bounds
3. Calls `onSelectionChanged(selection)` on each, which computes local selection
4. Tracks which renderables have active selections in `selection.selectedRenderables`
This means selection works across multiple renderables. Dragging across two `<text selectable>` elements selects text in both, and `selection.getSelectedText()` joins them with newlines.
## Clipboard API (OSC 52)
Copy text to the system clipboard using OSC 52 escape sequences. Works over SSH and in most modern terminal emulators.
```typescript
// Copy to clipboard
const success = renderer.copyToClipboardOSC52("text to copy")
// Check if OSC 52 is supported
if (renderer.isOsc52Supported()) {
renderer.copyToClipboardOSC52("Hello!")
}
// Clear clipboard
renderer.clearClipboardOSC52()
// Target specific clipboard (X11)
import { ClipboardTarget } from "@opentui/core"
renderer.copyToClipboardOSC52("text", ClipboardTarget.Primary) // X11 primary
renderer.copyToClipboardOSC52("text", ClipboardTarget.Clipboard) // System clipboard (default)
```
## Focus and Input Components
Input components (`<input>`, `<textarea>`, `<select>`) capture keyboard events when focused:
```tsx
<input focused /> // Receives keyboard input
// Global useKeyboard still fires, but input consumes characters
```
To prevent conflicts, check if an input is focused before handling global shortcuts:
```tsx
function App() {
const renderer = useRenderer()
const [inputFocused, setInputFocused] = useState(false)
useKeyboard((key) => {
if (inputFocused) return // Let input handle it
// Global shortcuts
if (key.name === "escape") {
renderer.destroy()
}
})
return (
<input
focused={inputFocused}
onFocus={() => setInputFocused(true)}
onBlur={() => setInputFocused(false)}
/>
)
}
```
## Gotchas
### Terminal Limitations
Some key combinations are captured by the terminal or OS:
- `Ctrl+C` often sends SIGINT (use `exitOnCtrlC: false` to handle)
- `Ctrl+Z` suspends the process
- Some function keys may be intercepted
### SSH and Remote Sessions
Key detection may vary over SSH. Test on target environments.
### Multiple Handlers
Multiple `useKeyboard` calls all receive events. Coordinate handlers to prevent conflicts.
## See Also
- [React API](../react/api.md) - `useKeyboard` hook reference
- [Solid API](../solid/api.md) - `useKeyboard` hook reference
- [Input Components](../components/inputs.md) - Focus management with input, textarea, select
- [Testing](../testing/REFERENCE.md) - Simulating key presses in tests
@@ -1,337 +0,0 @@
# OpenTUI Layout System
OpenTUI uses the Yoga layout engine, providing CSS Flexbox-like capabilities for positioning and sizing components in the terminal.
## Overview
Key concepts:
- **Flexbox model**: Familiar CSS Flexbox properties
- **Yoga engine**: Facebook's cross-platform layout engine
- **Terminal units**: Dimensions are in character cells (columns x rows)
- **Percentage support**: Relative sizing based on parent
## Flex Container Properties
### flexDirection
Controls the main axis direction:
```tsx
// Row (default) - children flow horizontally
<box flexDirection="row">
<text>1</text>
<text>2</text>
<text>3</text>
</box>
// Output: 1 2 3
// Column - children flow vertically
<box flexDirection="column">
<text>1</text>
<text>2</text>
<text>3</text>
</box>
// Output:
// 1
// 2
// 3
// Reverse variants
<box flexDirection="row-reverse">...</box> // 3 2 1
<box flexDirection="column-reverse">...</box> // Bottom to top
```
### justifyContent
Aligns children along the main axis:
```tsx
<box flexDirection="row" width={40} justifyContent="flex-start">
{/* Children at start (left for row) */}
</box>
<box flexDirection="row" width={40} justifyContent="flex-end">
{/* Children at end (right for row) */}
</box>
<box flexDirection="row" width={40} justifyContent="center">
{/* Children centered */}
</box>
<box flexDirection="row" width={40} justifyContent="space-between">
{/* First at start, last at end, rest evenly distributed */}
</box>
<box flexDirection="row" width={40} justifyContent="space-around">
{/* Equal space around each child */}
</box>
<box flexDirection="row" width={40} justifyContent="space-evenly">
{/* Equal space between all children and edges */}
</box>
```
### alignItems
Aligns children along the cross axis:
```tsx
<box flexDirection="row" height={10} alignItems="flex-start">
{/* Children at top */}
</box>
<box flexDirection="row" height={10} alignItems="flex-end">
{/* Children at bottom */}
</box>
<box flexDirection="row" height={10} alignItems="center">
{/* Children vertically centered */}
</box>
<box flexDirection="row" height={10} alignItems="stretch">
{/* Children stretch to fill height */}
</box>
<box flexDirection="row" height={10} alignItems="baseline">
{/* Children aligned by text baseline */}
</box>
```
### flexWrap
Controls whether children wrap to new lines:
```tsx
<box flexDirection="row" flexWrap="nowrap" width={20}>
{/* Children overflow (default) */}
</box>
<box flexDirection="row" flexWrap="wrap" width={20}>
{/* Children wrap to next row */}
</box>
<box flexDirection="row" flexWrap="wrap-reverse" width={20}>
{/* Children wrap upward */}
</box>
```
### gap
Space between children:
```tsx
<box flexDirection="row" gap={2}>
<text>A</text>
<text>B</text>
<text>C</text>
</box>
// Output: A B C (2 spaces between)
```
## Flex Item Properties
### flexGrow
How much a child should grow relative to siblings:
```tsx
<box flexDirection="row" width={30}>
<box flexGrow={1}><text>1</text></box>
<box flexGrow={2}><text>2</text></box>
<box flexGrow={1}><text>1</text></box>
</box>
// Widths: 7.5 | 15 | 7.5 (1:2:1 ratio)
```
### flexShrink
How much a child should shrink when space is limited:
```tsx
<box flexDirection="row" width={20}>
<box width={15} flexShrink={1}><text>Shrinks</text></box>
<box width={15} flexShrink={0}><text>Fixed</text></box>
</box>
```
### flexBasis
Initial size before growing/shrinking:
```tsx
<box flexDirection="row">
<box flexBasis={20} flexGrow={1}>Starts at 20, can grow</box>
<box flexBasis="50%">Half of parent</box>
</box>
```
### alignSelf
Override parent's alignItems for this child:
```tsx
<box flexDirection="row" height={10} alignItems="center">
<text>Centered</text>
<text alignSelf="flex-start">Top</text>
<text alignSelf="flex-end">Bottom</text>
</box>
```
## Dimensions
### Fixed Dimensions
```tsx
<box width={40} height={10}>
{/* Exactly 40 columns by 10 rows */}
</box>
```
### Percentage Dimensions
Parent must have explicit size:
```tsx
<box width="100%" height="100%">
<box width="50%" height="50%">
{/* Half of parent */}
</box>
</box>
```
### Min/Max Constraints
```tsx
<box
minWidth={20}
maxWidth={60}
minHeight={5}
maxHeight={20}
>
{/* Constrained sizing */}
</box>
```
## Spacing
### Padding (inside)
```tsx
// All sides
<box padding={2}>Content</box>
// Individual sides
<box
paddingTop={1}
paddingRight={2}
paddingBottom={1}
paddingLeft={2}
>
Content
</box>
```
### Margin (outside)
```tsx
// All sides
<box margin={1}>Content</box>
// Individual sides
<box
marginTop={1}
marginRight={2}
marginBottom={1}
marginLeft={2}
>
Content
</box>
```
## Positioning
### Relative (default)
Element flows in normal document order:
```tsx
<box position="relative">
{/* Normal flow */}
</box>
```
### Absolute
Element positioned relative to nearest positioned ancestor:
```tsx
<box position="relative" width="100%" height="100%">
<box
position="absolute"
left={10}
top={5}
width={20}
height={5}
>
Positioned at (10, 5)
</box>
</box>
```
### Position Properties
```tsx
<box
position="absolute"
left={10} // From left edge
top={5} // From top edge
right={10} // From right edge
bottom={5} // From bottom edge
>
Content
</box>
```
## Display
### Visibility Control
```tsx
// Visible (default)
<box display="flex">Visible</box>
// Hidden (removed from layout)
<box display="none">Hidden</box>
```
## Overflow
```tsx
<box overflow="visible">
{/* Content can extend beyond bounds (default) */}
</box>
<box overflow="hidden">
{/* Content clipped at bounds */}
</box>
<box overflow="scroll">
{/* Scrollable when content exceeds bounds */}
</box>
```
## Z-Index
Control stacking order for overlapping elements:
```tsx
<box position="relative">
<box position="absolute" zIndex={1}>Behind</box>
<box position="absolute" zIndex={2}>In front</box>
</box>
```
## See Also
- [Layout Patterns](./patterns.md) - Common layout recipes
- [Components/Containers](../components/containers.md) - Box and ScrollBox details
@@ -1,444 +0,0 @@
# Layout Patterns
Common layout recipes for terminal user interfaces.
## Full-Screen App
Fill the entire terminal:
```tsx
function App() {
return (
<box width="100%" height="100%">
{/* Content fills terminal */}
</box>
)
}
```
## Header/Content/Footer
Classic app layout:
```tsx
function AppLayout() {
return (
<box flexDirection="column" width="100%" height="100%">
{/* Header - fixed height */}
<box height={3} borderStyle="single" borderBottom>
<text>Header</text>
</box>
{/* Content - fills remaining space */}
<box flexGrow={1}>
<text>Main Content</text>
</box>
{/* Footer - fixed height */}
<box height={1}>
<text>Status: Ready</text>
</box>
</box>
)
}
```
## Sidebar Layout
```tsx
function SidebarLayout() {
return (
<box flexDirection="row" width="100%" height="100%">
{/* Sidebar - fixed width */}
<box width={25} borderStyle="single" borderRight>
<text>Sidebar</text>
</box>
{/* Main - fills remaining space */}
<box flexGrow={1}>
<text>Main Content</text>
</box>
</box>
)
}
```
## Resizable Sidebar
Responsive based on terminal width:
```tsx
function ResponsiveSidebar() {
const dims = useTerminalDimensions() // React: useTerminalDimensions()
const showSidebar = dims.width > 60
const sidebarWidth = Math.min(30, Math.floor(dims.width * 0.3))
return (
<box flexDirection="row" width="100%" height="100%">
{showSidebar && (
<box width={sidebarWidth} border>
<text>Sidebar</text>
</box>
)}
<box flexGrow={1}>
<text>Main</text>
</box>
</box>
)
}
```
## Centered Content
### Horizontally Centered
```tsx
<box width="100%" justifyContent="center">
<box width={40}>
<text>Centered horizontally</text>
</box>
</box>
```
### Vertically Centered
```tsx
<box height="100%" alignItems="center">
<text>Centered vertically</text>
</box>
```
### Both Axes
```tsx
<box
width="100%"
height="100%"
justifyContent="center"
alignItems="center"
>
<box width={40} height={10} border>
<text>Centered both ways</text>
</box>
</box>
```
## Modal/Dialog
Centered overlay:
```tsx
function Modal({ children, visible }) {
if (!visible) return null
return (
<box
position="absolute"
left={0}
top={0}
width="100%"
height="100%"
justifyContent="center"
alignItems="center"
backgroundColor="rgba(0,0,0,0.5)"
>
<box
width={50}
height={15}
border
borderStyle="double"
backgroundColor="#1a1a2e"
padding={2}
>
{children}
</box>
</box>
)
}
```
## Grid Layout
Using flexWrap:
```tsx
function Grid({ items, columns = 3 }) {
const itemWidth = `${Math.floor(100 / columns)}%`
return (
<box flexDirection="row" flexWrap="wrap" width="100%">
{items.map((item, i) => (
<box key={i} width={itemWidth} padding={1}>
<text>{item}</text>
</box>
))}
</box>
)
}
```
## Split Panels
### Horizontal Split
```tsx
function HorizontalSplit({ ratio = 0.5 }) {
return (
<box flexDirection="row" width="100%" height="100%">
<box width={`${ratio * 100}%`} border>
<text>Left Panel</text>
</box>
<box flexGrow={1} border>
<text>Right Panel</text>
</box>
</box>
)
}
```
### Vertical Split
```tsx
function VerticalSplit({ ratio = 0.5 }) {
return (
<box flexDirection="column" width="100%" height="100%">
<box height={`${ratio * 100}%`} border>
<text>Top Panel</text>
</box>
<box flexGrow={1} border>
<text>Bottom Panel</text>
</box>
</box>
)
}
```
## Form Layout
Label + Input pairs:
```tsx
function FormField({ label, children }) {
return (
<box flexDirection="row" marginBottom={1}>
<box width={15}>
<text>{label}:</text>
</box>
<box flexGrow={1}>
{children}
</box>
</box>
)
}
function LoginForm() {
return (
<box flexDirection="column" padding={2} border width={50}>
<FormField label="Username">
<input placeholder="Enter username" />
</FormField>
<FormField label="Password">
<input placeholder="Enter password" />
</FormField>
<box marginTop={2} justifyContent="flex-end">
<box border padding={1}>
<text>Login</text>
</box>
</box>
</box>
)
}
```
## Navigation Tabs
```tsx
function TabBar({ tabs, activeIndex, onSelect }) {
return (
<box flexDirection="row" borderBottom>
{tabs.map((tab, i) => (
<box
key={i}
padding={1}
backgroundColor={i === activeIndex ? "#333" : "transparent"}
onMouseDown={() => onSelect(i)}
>
<text fg={i === activeIndex ? "#fff" : "#888"}>
{tab}
</text>
</box>
))}
</box>
)
}
```
## Sticky Footer
Footer always at bottom:
```tsx
function StickyFooterLayout() {
return (
<box flexDirection="column" width="100%" height="100%">
{/* Content area */}
<box flexGrow={1} flexDirection="column">
{/* Your content here */}
<text>Content that might be short</text>
</box>
{/* Footer pushed to bottom */}
<box height={1}>
<text fg="#888">Press ? for help | q to quit</text>
</box>
</box>
)
}
```
## Absolute Positioning Overlay
Tooltip or popup:
```tsx
function Tooltip({ x, y, children }) {
return (
<box
position="absolute"
left={x}
top={y}
border
backgroundColor="#333"
padding={1}
zIndex={100}
>
{children}
</box>
)
}
```
## Responsive Breakpoints
Different layouts based on terminal size:
```tsx
function ResponsiveApp() {
const { width, height } = useTerminalDimensions()
// Define breakpoints
const isSmall = width < 60
const isMedium = width >= 60 && width < 100
const isLarge = width >= 100
if (isSmall) {
// Mobile-like: stacked layout
return (
<box flexDirection="column">
<Navigation />
<Content />
</box>
)
}
if (isMedium) {
// Tablet-like: sidebar + content
return (
<box flexDirection="row">
<box width={20}><Navigation /></box>
<box flexGrow={1}><Content /></box>
</box>
)
}
// Large: full layout
return (
<box flexDirection="row">
<box width={25}><Navigation /></box>
<box flexGrow={1}><Content /></box>
<box width={30}><Sidebar /></box>
</box>
)
}
```
## Equal Height Columns
```tsx
function EqualColumns() {
return (
<box flexDirection="row" alignItems="stretch" height={20}>
<box flexGrow={1} border>
<text>Short content</text>
</box>
<box flexGrow={1} border>
<text>
Longer content that
spans multiple lines
and takes up space
</text>
</box>
<box flexGrow={1} border>
<text>Medium content</text>
</box>
</box>
)
}
```
## Spacing Utilities
Consistent spacing patterns:
```tsx
// Spacer component
function Spacer({ size = 1 }) {
return <box height={size} width={size} />
}
// Divider component
function Divider() {
return <box height={1} width="100%" backgroundColor="#333" />
}
// Usage
<box flexDirection="column">
<text>Section 1</text>
<Spacer size={2} />
<Divider />
<Spacer size={2} />
<text>Section 2</text>
</box>
```
### Axis Shorthand Props
Use `paddingX`/`paddingY` and `marginX`/`marginY` for horizontal/vertical spacing:
```tsx
// Horizontal padding (left + right)
<box paddingX={4}>
<text>4 chars padding left and right</text>
</box>
// Vertical padding (top + bottom)
<box paddingY={2}>
<text>2 lines padding top and bottom</text>
</box>
// Horizontal margin for centering-like effect
<box marginX={10}>
<text>Indented content</text>
</box>
// Combined for card-like spacing
<box paddingX={3} paddingY={1} marginY={1} border>
<text>Nicely spaced card</text>
</box>
```
These are shorthand for:
- `paddingX={n}` = `paddingLeft={n}` + `paddingRight={n}`
- `paddingY={n}` = `paddingTop={n}` + `paddingBottom={n}`
- `marginX={n}` = `marginLeft={n}` + `marginRight={n}`
- `marginY={n}` = `marginTop={n}` + `marginBottom={n}`
@@ -1,174 +0,0 @@
# OpenTUI React (@opentui/react)
A React reconciler for building terminal user interfaces with familiar React patterns. Write TUIs using JSX, hooks, and component composition.
## Overview
OpenTUI React provides:
- **Custom reconciler**: React components render to OpenTUI renderables
- **JSX intrinsics**: `<text>`, `<box>`, `<input>`, etc.
- **Hooks**: `useKeyboard`, `useRenderer`, `useTimeline`, etc.
- **Full React compatibility**: useState, useEffect, context, and more
## When to Use React
Use the React reconciler when:
- You're familiar with React patterns
- You want declarative UI composition
- You need React's ecosystem (context, state management libraries)
- Building applications with complex state
- Team knows React already
## When NOT to Use React
| Scenario | Use Instead |
|----------|-------------|
| Maximum performance critical | `@opentui/core` (imperative) |
| Fine-grained reactivity | `@opentui/solid` |
| Smallest bundle size | `@opentui/core` |
| Building a framework/library | `@opentui/core` |
## Quick Start
```bash
bunx create-tui@latest -t react my-app
cd my-app
bun run src/index.tsx
```
The CLI creates the `my-app` directory for you - it must **not already exist**.
**Agent guidance**: Always use autonomous mode with `-t <template>` flag. Never use interactive mode (`bunx create-tui@latest my-app` without `-t`) as it requires user prompts that agents cannot respond to.
Or manual setup:
```bash
mkdir my-tui && cd my-tui
bun init
bun install @opentui/react @opentui/core react
```
```tsx
import { createCliRenderer } from "@opentui/core"
import { createRoot } from "@opentui/react"
import { useState } from "react"
function App() {
const [count, setCount] = useState(0)
return (
<box border padding={2}>
<text>Count: {count}</text>
<box
border
onMouseDown={() => setCount(c => c + 1)}
>
<text>Click me!</text>
</box>
</box>
)
}
const renderer = await createCliRenderer()
createRoot(renderer).render(<App />)
```
## Core Concepts
### JSX Elements
React maps JSX intrinsic elements to OpenTUI renderables:
```tsx
// These are not HTML elements!
<text>Hello</text> // TextRenderable
<box border>Content</box> // BoxRenderable
<input placeholder="..." /> // InputRenderable
<select options={[...]} /> // SelectRenderable
```
### Text Modifiers
Inside `<text>`, use modifier elements:
```tsx
<text>
<strong>Bold</strong>, <em>italic</em>, and <u>underlined</u>
<span fg="red">Colored text</span>
<br />
New line with <a href="https://example.com">link</a>
</text>
```
### Styling
Two approaches to styling:
```tsx
// Direct props
<box backgroundColor="blue" padding={2} border>
<text fg="#00FF00">Green text</text>
</box>
// Style prop
<box style={{ backgroundColor: "blue", padding: 2, border: true }}>
<text style={{ fg: "#00FF00" }}>Green text</text>
</box>
```
## Available Components
### Layout & Display
- `<text>` - Styled text content
- `<box>` - Container with borders and layout
- `<scrollbox>` - Scrollable container
- `<ascii-font>` - ASCII art text
### Input
- `<input>` - Single-line text input
- `<textarea>` - Multi-line text input
- `<select>` - List selection
- `<tab-select>` - Tab-based selection
### Code & Diff
- `<code>` - Syntax-highlighted code
- `<line-number>` - Code with line numbers
- `<diff>` - Unified or split diff viewer
### Text Modifiers (inside `<text>`)
- `<span>` - Inline styled text
- `<strong>`, `<b>` - Bold
- `<em>`, `<i>` - Italic
- `<u>` - Underline
- `<br>` - Line break
- `<a>` - Link
## Essential Hooks
```tsx
import {
useRenderer,
useKeyboard,
useOnResize,
useTerminalDimensions,
useTimeline,
} from "@opentui/react"
```
See [API Reference](./api.md) for detailed hook documentation.
## In This Reference
- [Configuration](./configuration.md) - Project setup, tsconfig, bundling
- [API](./api.md) - Components, hooks, createRoot
- [Patterns](./patterns.md) - State management, keyboard handling, forms
- [Gotchas](./gotchas.md) - Common issues, debugging, limitations
## See Also
- [Core](../core/REFERENCE.md) - Underlying imperative API
- [Solid](../solid/REFERENCE.md) - Alternative declarative approach
- [Components](../components/REFERENCE.md) - Component reference by category
- [Layout](../layout/REFERENCE.md) - Flexbox layout system
- [Keyboard](../keyboard/REFERENCE.md) - Input handling and shortcuts
- [Testing](../testing/REFERENCE.md) - Test renderer and snapshots
@@ -1,436 +0,0 @@
# React API Reference
## Rendering
### createRoot(renderer)
Creates a React root for rendering.
```tsx
import { createCliRenderer } from "@opentui/core"
import { createRoot } from "@opentui/react"
const renderer = await createCliRenderer({
exitOnCtrlC: false, // Handle Ctrl+C yourself
})
const root = createRoot(renderer)
root.render(<App />)
```
## Hooks
### useRenderer()
Access the OpenTUI renderer instance.
```tsx
import { useRenderer } from "@opentui/react"
import { useEffect } from "react"
function App() {
const renderer = useRenderer()
useEffect(() => {
// Access renderer properties
console.log(`Terminal: ${renderer.width}x${renderer.height}`)
// Show debug console
renderer.console.show()
// Access theme mode (dark/light based on terminal settings)
console.log(`Theme: ${renderer.themeMode}`) // "dark" | "light" | null
}, [renderer])
return <text>Hello</text>
}
// Listen for theme mode changes
function ThemedApp() {
const renderer = useRenderer()
const [theme, setTheme] = useState(renderer.themeMode ?? "dark")
useEffect(() => {
const handler = (mode: "dark" | "light") => setTheme(mode)
renderer.on("theme_mode", handler)
return () => renderer.off("theme_mode", handler)
}, [renderer])
return (
<box backgroundColor={theme === "dark" ? "#1a1a2e" : "#ffffff"}>
<text fg={theme === "dark" ? "#fff" : "#000"}>
Current theme: {theme}
</text>
</box>
)
}
```
### useKeyboard(handler, options?)
Handle keyboard events.
```tsx
import { useKeyboard, useRenderer } from "@opentui/react"
function App() {
const renderer = useRenderer()
useKeyboard((key) => {
if (key.name === "escape") {
renderer.destroy() // Never use process.exit() directly!
}
if (key.ctrl && key.name === "s") {
saveDocument()
}
})
return <text>Press ESC to exit</text>
}
// With release events
function GameControls() {
const [pressed, setPressed] = useState(new Set<string>())
useKeyboard(
(event) => {
setPressed(keys => {
const newKeys = new Set(keys)
if (event.eventType === "release") {
newKeys.delete(event.name)
} else {
newKeys.add(event.name)
}
return newKeys
})
},
{ release: true } // Include release events
)
return <text>Pressed: {Array.from(pressed).join(", ")}</text>
}
```
**Options:**
- `release?: boolean` - Include key release events (default: false)
**KeyEvent properties:**
- `name: string` - Key name ("a", "escape", "f1", etc.)
- `sequence: string` - Raw escape sequence
- `ctrl: boolean` - Ctrl modifier
- `shift: boolean` - Shift modifier
- `meta: boolean` - Alt modifier
- `option: boolean` - Option modifier (macOS)
- `eventType: "press" | "release" | "repeat"`
- `repeated: boolean` - Key is being held
### useOnResize(callback)
Handle terminal resize events.
```tsx
import { useOnResize } from "@opentui/react"
function App() {
useOnResize((width, height) => {
console.log(`Resized to ${width}x${height}`)
})
return <text>Resize the terminal</text>
}
```
### useTerminalDimensions()
Get reactive terminal dimensions.
```tsx
import { useTerminalDimensions } from "@opentui/react"
function ResponsiveLayout() {
const { width, height } = useTerminalDimensions()
return (
<box flexDirection={width > 80 ? "row" : "column"}>
<box flexGrow={1}>
<text>Width: {width}</text>
</box>
<box flexGrow={1}>
<text>Height: {height}</text>
</box>
</box>
)
}
```
### useTimeline(options?)
Create animations with the timeline system.
```tsx
import { useTimeline } from "@opentui/react"
import { useEffect, useState } from "react"
function AnimatedBox() {
const [width, setWidth] = useState(0)
const timeline = useTimeline({
duration: 2000,
loop: false,
})
useEffect(() => {
timeline.add(
{ width: 0 },
{
width: 50,
duration: 2000,
ease: "easeOutQuad",
onUpdate: (anim) => {
setWidth(Math.round(anim.targets[0].width))
},
}
)
}, [timeline])
return <box style={{ width, height: 3, backgroundColor: "#6a5acd" }} />
}
```
**Options:**
- `duration?: number` - Default duration (ms)
- `loop?: boolean` - Loop the timeline
- `autoplay?: boolean` - Auto-start (default: true)
- `onComplete?: () => void` - Completion callback
- `onPause?: () => void` - Pause callback
**Timeline methods:**
- `add(target, properties, startTime?)` - Add animation
- `play()` - Start playback
- `pause()` - Pause playback
- `restart()` - Restart from beginning
## Components
### Text Component
```tsx
<text
content="Hello" // Or use children
fg="#FFFFFF" // Foreground color
bg="#000000" // Background color
selectable={true} // Allow text selection
>
{/* Use nested modifier tags for styling */}
<span fg="red">Red</span>
<strong>Bold</strong>
<em>Italic</em>
<u>Underline</u>
<br />
<a href="https://...">Link</a>
</text>
```
> **Note**: Do NOT use `bold`, `italic`, `underline` as props on `<text>`. Use nested modifier tags like `<strong>`, `<em>`, `<u>` instead.
### Box Component
```tsx
<box
// Borders
border // Enable border
borderStyle="single" // single | double | rounded | bold
borderColor="#FFFFFF"
title="Title"
titleAlignment="center" // left | center | right
// Colors
backgroundColor="#1a1a2e"
// Layout (see layout/REFERENCE.md)
flexDirection="row"
justifyContent="center"
alignItems="center"
gap={2}
// Spacing
padding={2}
paddingTop={1}
paddingX={2} // Horizontal (left + right)
paddingY={1} // Vertical (top + bottom)
margin={1}
marginX={2} // Horizontal (left + right)
marginY={1} // Vertical (top + bottom)
// Dimensions
width={40}
height={10}
flexGrow={1}
// Focus
focusable // Allow box to receive focus
focused={isFocused} // Controlled focus state
// Events
onMouseDown={(e) => {}}
onMouseUp={(e) => {}}
onMouseMove={(e) => {}}
>
{children}
</box>
```
### Scrollbox Component
```tsx
<scrollbox
focused // Enable keyboard scrolling
style={{
rootOptions: { backgroundColor: "#24283b" },
wrapperOptions: { backgroundColor: "#1f2335" },
viewportOptions: { backgroundColor: "#1a1b26" },
contentOptions: { backgroundColor: "#16161e" },
scrollbarOptions: {
showArrows: true,
trackOptions: {
foregroundColor: "#7aa2f7",
backgroundColor: "#414868",
},
},
}}
>
{/* Scrollable content */}
{items.map((item, i) => (
<box key={i}>
<text>{item}</text>
</box>
))}
</scrollbox>
```
### Input Component
```tsx
<input
value={value}
onChange={(newValue) => setValue(newValue)}
placeholder="Enter text..."
focused // Start focused
width={30}
backgroundColor="#1a1a1a"
textColor="#FFFFFF"
cursorColor="#00FF00"
focusedBackgroundColor="#2a2a2a"
/>
```
### Textarea Component
```tsx
<textarea
value={text}
onChange={(newValue) => setText(newValue)}
placeholder="Enter multiple lines..."
focused
width={40}
height={10}
showLineNumbers
wrapText
/>
```
### Select Component
```tsx
<select
options={[
{ name: "Option 1", description: "First option", value: "1" },
{ name: "Option 2", description: "Second option", value: "2" },
]}
onChange={(index, option) => setSelected(option)}
selectedIndex={0}
focused
showScrollIndicator
height={8}
/>
```
### Tab Select Component
```tsx
<tab-select
options={[
{ name: "Home", description: "Dashboard" },
{ name: "Settings", description: "Configuration" },
]}
onChange={(index, option) => setTab(option)}
tabWidth={20}
focused
/>
```
### ASCII Font Component
```tsx
<ascii-font
text="TITLE"
font="tiny" // tiny | block | slick | shade
color="#FFFFFF"
/>
```
### Code Component
```tsx
<code
code={sourceCode}
language="typescript"
showLineNumbers
highlightLines={[1, 5, 10]}
/>
```
### Line Number Component
```tsx
<line-number
code={sourceCode}
language="typescript"
startLine={1}
highlightedLines={[5]}
diagnostics={[
{ line: 3, severity: "error", message: "Syntax error" }
]}
/>
```
### Diff Component
```tsx
<diff
oldCode={originalCode}
newCode={modifiedCode}
language="typescript"
mode="unified" // unified | split
syncScroll // Sync scroll between split view panes
showLineNumbers
/>
```
## Type Exports
```tsx
import type {
// Component props
TextProps,
BoxProps,
InputProps,
SelectProps,
// Hook types
KeyEvent,
// From core
CliRenderer,
} from "@opentui/react"
```
@@ -1,302 +0,0 @@
# React Configuration
## Project Setup
### Quick Start
```bash
bunx create-tui@latest -t react my-app
cd my-app && bun install
```
The CLI creates the `my-app` directory for you - it must **not already exist**.
Options: `--no-git` (skip git init), `--no-install` (skip bun install)
### Manual Setup
```bash
mkdir my-tui && cd my-tui
bun init
bun install @opentui/react @opentui/core react
```
## TypeScript Configuration
### tsconfig.json
```json
{
"compilerOptions": {
"lib": ["ESNext", "DOM"],
"target": "ESNext",
"module": "NodeNext",
"moduleResolution": "NodeNext",
"jsx": "react-jsx",
"jsxImportSource": "@opentui/react",
"strict": true,
"skipLibCheck": true,
"noEmit": true,
"types": ["bun-types"]
},
"include": ["src/**/*"]
}
```
**Critical settings:**
- `jsx: "react-jsx"` - Use the new JSX transform
- `jsxImportSource: "@opentui/react"` - Import JSX runtime from OpenTUI
- `module` / `moduleResolution: "NodeNext"` - Recommended for OpenTUI compatibility
### Why DOM lib?
The `DOM` lib is needed for React types. OpenTUI's JSX types extend React's.
## Package Configuration
### package.json
```json
{
"name": "my-tui-app",
"type": "module",
"scripts": {
"start": "bun run src/index.tsx",
"dev": "bun --watch run src/index.tsx",
"test": "bun test",
"build": "bun build src/index.tsx --outdir=dist --target=bun"
},
"dependencies": {
"@opentui/core": "latest",
"@opentui/react": "latest",
"react": ">=19.0.0"
},
"devDependencies": {
"@types/bun": "latest",
"@types/react": ">=19.0.0",
"typescript": "latest"
}
}
```
## Project Structure
Recommended structure:
```
my-tui-app/
├── src/
│ ├── components/
│ │ ├── Header.tsx
│ │ ├── Sidebar.tsx
│ │ └── MainContent.tsx
│ ├── hooks/
│ │ └── useAppState.ts
│ ├── App.tsx
│ └── index.tsx
├── package.json
└── tsconfig.json
```
### Entry Point (src/index.tsx)
```tsx
import { createCliRenderer } from "@opentui/core"
import { createRoot } from "@opentui/react"
import { App } from "./App"
const renderer = await createCliRenderer({
exitOnCtrlC: true,
})
createRoot(renderer).render(<App />)
```
### App Component (src/App.tsx)
```tsx
import { Header } from "./components/Header"
import { Sidebar } from "./components/Sidebar"
import { MainContent } from "./components/MainContent"
export function App() {
return (
<box flexDirection="column" width="100%" height="100%">
<Header />
<box flexDirection="row" flexGrow={1}>
<Sidebar />
<MainContent />
</box>
</box>
)
}
```
## Renderer Configuration
### createCliRenderer Options
```tsx
import { createCliRenderer, ConsolePosition } from "@opentui/core"
const renderer = await createCliRenderer({
// Rendering
targetFPS: 60,
// Behavior
exitOnCtrlC: true, // Set false to handle Ctrl+C yourself
autoFocus: true, // Auto-focus elements on click (default: true)
useMouse: true, // Enable mouse support (default: true)
// Debug console
consoleOptions: {
position: ConsolePosition.BOTTOM,
sizePercent: 30,
startInDebugMode: false,
},
// Cleanup
onDestroy: () => {
// Cleanup code
},
})
```
## Building for Distribution
### Bundling with Bun
```typescript
// build.ts
await Bun.build({
entrypoints: ["./src/index.tsx"],
outdir: "./dist",
target: "bun",
minify: true,
})
```
Run: `bun run build.ts`
### Creating Executables
```typescript
// build.ts
await Bun.build({
entrypoints: ["./src/index.tsx"],
outdir: "./dist",
target: "bun",
compile: {
target: "bun-darwin-arm64", // or bun-linux-x64, etc.
outfile: "my-app",
},
})
```
## Environment Variables
Create `.env` for development:
```env
# Debug settings
OTUI_SHOW_STATS=false
SHOW_CONSOLE=false
# App settings
API_URL=https://api.example.com
```
Bun auto-loads `.env` files. Access via `process.env`:
```tsx
const apiUrl = process.env.API_URL
```
## React DevTools
OpenTUI React supports React DevTools for debugging.
### Setup
1. Install DevTools as a dev dependency (must use version 7):
```bash
bun add react-devtools-core@7 -d
```
2. Run DevTools standalone app:
```bash
npx react-devtools@7
```
3. Start your app with `DEV=true` environment variable:
```bash
DEV=true bun run src/index.tsx
```
**Important**: Auto-connect to DevTools ONLY happens when `DEV=true` is set. Without this environment variable, the DevTools connection code is not loaded.
### How It Works
OpenTUI checks for `process.env["DEV"] === "true"` at startup. When true, it dynamically imports `react-devtools-core` and connects to the standalone DevTools app.
## Testing Configuration
### Test Setup
```typescript
// src/test-utils.tsx
import { createTestRenderer } from "@opentui/core/testing"
import { createRoot } from "@opentui/react"
export async function renderForTest(
element: React.ReactElement,
options = { width: 80, height: 24 }
) {
const testSetup = await createTestRenderer(options)
createRoot(testSetup.renderer).render(element)
return testSetup
}
```
### Test Example
```typescript
// src/components/Counter.test.tsx
import { test, expect } from "bun:test"
import { renderForTest } from "../test-utils"
import { Counter } from "./Counter"
test("Counter renders initial value", async () => {
const { snapshot } = await renderForTest(<Counter initialValue={5} />)
expect(snapshot()).toContain("Count: 5")
})
```
## Common Issues
### JSX Types Not Working
Ensure `jsxImportSource` is set:
```json
{
"compilerOptions": {
"jsx": "react-jsx",
"jsxImportSource": "@opentui/react"
}
}
```
### React Version Mismatch
Ensure React 19+:
```bash
bun install react@19 @types/react@19
```
### Module Resolution Errors
Use `moduleResolution: "bundler"` for Bun compatibility.
@@ -1,443 +0,0 @@
# React Gotchas
## Critical
### Never use `process.exit()` directly
**This is the most common mistake.** Using `process.exit()` leaves the terminal in a broken state (cursor hidden, raw mode, alternate screen).
```tsx
// WRONG - Terminal left in broken state
process.exit(0)
// CORRECT - Use renderer.destroy()
import { useRenderer } from "@opentui/react"
function App() {
const renderer = useRenderer()
const handleExit = () => {
renderer.destroy() // Cleans up and exits properly
}
}
```
`renderer.destroy()` restores the terminal (exits alternate screen, restores cursor, etc.) before exiting.
### Signal Handling
OpenTUI automatically handles cleanup for these signals:
- `SIGINT` (Ctrl+C), `SIGTERM`, `SIGQUIT` - Standard termination
- `SIGHUP` - Terminal closed/hangup
- `SIGBREAK` - Ctrl+Break (Windows)
- `SIGPIPE` - Broken pipe (output closed)
- `SIGBUS`, `SIGFPE` - Hardware errors
This ensures terminal state is restored even on unexpected termination. If you need custom signal handling, use `exitOnCtrlC: false` and handle signals yourself while still calling `renderer.destroy()`.
## JSX Configuration
### Missing jsxImportSource
**Symptom**: JSX elements have wrong types, components don't render
```
// Error: Property 'text' does not exist on type 'JSX.IntrinsicElements'
```
**Fix**: Configure tsconfig.json:
```json
{
"compilerOptions": {
"jsx": "react-jsx",
"jsxImportSource": "@opentui/react"
}
}
```
### HTML Elements vs TUI Elements
OpenTUI's JSX elements are **not** HTML elements:
```tsx
// WRONG - These are HTML concepts
<div>Not supported</div>
<button>Not supported</button>
<span>Only works inside <text></span>
// CORRECT - OpenTUI elements
<box>Container</box>
<text>Display text</text>
<text><span>Inline styled</span></text>
```
## Component Issues
### Text Modifiers Outside Text
Text modifiers only work inside `<text>`:
```tsx
// WRONG
<box>
<strong>This won't work</strong>
</box>
// CORRECT
<box>
<text>
<strong>This works</strong>
</text>
</box>
```
### Focus Not Working
Components must be explicitly focused:
```tsx
// WRONG - Won't receive keyboard input
<input placeholder="Type here..." />
// CORRECT
<input placeholder="Type here..." focused />
// Or manage focus state
const [isFocused, setIsFocused] = useState(true)
<input placeholder="Type here..." focused={isFocused} />
```
### Select Not Responding
Select requires focus and proper options format:
```tsx
// WRONG - Missing required properties
<select options={["a", "b", "c"]} />
// CORRECT
<select
options={[
{ name: "Option A", description: "First option", value: "a" },
{ name: "Option B", description: "Second option", value: "b" },
]}
onSelect={(index, option) => {
// Called when Enter is pressed
console.log("Selected:", option.name)
}}
focused
/>
```
### Select Events Confusion
Remember: `onSelect` fires on Enter (selection confirmed), `onChange` fires on navigation:
```tsx
// WRONG - expecting onChange to fire on Enter
<select
options={options}
onChange={(i, opt) => submitForm(opt)} // This fires on arrow keys!
/>
// CORRECT
<select
options={options}
onSelect={(i, opt) => submitForm(opt)} // Enter pressed - submit
onChange={(i, opt) => showPreview(opt)} // Arrow keys - preview
/>
```
## Hook Issues
### useKeyboard Not Firing
Multiple `useKeyboard` hooks can conflict:
```tsx
// Both handlers fire - may cause issues
function App() {
useKeyboard((key) => { /* parent handler */ })
return <ChildWithKeyboard />
}
function ChildWithKeyboard() {
useKeyboard((key) => { /* child handler */ })
return <text>Child</text>
}
```
**Solution**: Use a single keyboard handler or implement event stopping:
```tsx
function App() {
const [handled, setHandled] = useState(false)
useKeyboard((key) => {
if (handled) {
setHandled(false)
return
}
// Handle at app level
})
return <Child onKeyHandled={() => setHandled(true)} />
}
```
### useEffect Cleanup
Always clean up intervals and listeners:
```tsx
// WRONG - Memory leak
useEffect(() => {
setInterval(() => updateData(), 1000)
}, [])
// CORRECT
useEffect(() => {
const interval = setInterval(() => updateData(), 1000)
return () => clearInterval(interval) // Cleanup!
}, [])
```
## Styling Issues
### Colors Not Applying
Check color format:
```tsx
// CORRECT formats
<text fg="#FF0000">Red</text>
<text fg="red">Red</text>
<box backgroundColor="#1a1a2e">Box</box>
// WRONG
<text fg="FF0000">Missing #</text>
<text color="#FF0000">Wrong prop name (use fg)</text>
```
### Layout Not Working
Ensure parent has dimensions:
```tsx
// WRONG - Parent has no height
<box flexDirection="column">
<box flexGrow={1}>Won't grow</box>
</box>
// CORRECT
<box flexDirection="column" height="100%">
<box flexGrow={1}>Will grow</box>
</box>
```
### Percentage Widths Not Working
Parent must have explicit dimensions:
```tsx
// WRONG
<box>
<box width="50%">Won't work</box>
</box>
// CORRECT
<box width="100%">
<box width="50%">Works</box>
</box>
```
## Performance Issues
### Too Many Re-renders
Avoid inline objects/functions in props:
```tsx
// WRONG - New object every render
<box style={{ padding: 2 }}>Content</box>
// BETTER - Use direct props
<box padding={2}>Content</box>
// OR memoize style objects
const style = useMemo(() => ({ padding: 2 }), [])
<box style={style}>Content</box>
```
### Heavy Components
Use React.memo for expensive components:
```tsx
const ExpensiveList = React.memo(function ExpensiveList({
items
}: {
items: Item[]
}) {
return (
<box flexDirection="column">
{items.map(item => (
<text key={item.id}>{item.name}</text>
))}
</box>
)
})
```
### State Updates During Render
Don't update state during render:
```tsx
// WRONG
function Component({ value }: { value: number }) {
const [count, setCount] = useState(0)
// This causes infinite loop!
if (value > 10) {
setCount(value)
}
return <text>{count}</text>
}
// CORRECT
function Component({ value }: { value: number }) {
const [count, setCount] = useState(0)
useEffect(() => {
if (value > 10) {
setCount(value)
}
}, [value])
return <text>{count}</text>
}
```
## Debugging
### Console Not Visible
OpenTUI captures console output. Show the overlay:
```tsx
import { useRenderer } from "@opentui/react"
import { useEffect } from "react"
function App() {
const renderer = useRenderer()
useEffect(() => {
renderer.console.show()
console.log("Now you can see this!")
}, [renderer])
return <box>{/* ... */}</box>
}
```
### Component Not Rendering
Check if component is in the tree:
```tsx
// WRONG - Conditional returns nothing
function MaybeComponent({ show }: { show: boolean }) {
if (!show) return // Returns undefined!
return <text>Visible</text>
}
// CORRECT
function MaybeComponent({ show }: { show: boolean }) {
if (!show) return null // Explicit null
return <text>Visible</text>
}
```
### Events Not Firing
Check event handler names:
```tsx
// WRONG
<box onClick={() => {}}>Click</box> // No onClick in TUI
// CORRECT
<box onMouseDown={() => {}}>Click</box>
<box onMouseUp={() => {}}>Click</box>
```
## Runtime Issues
### Use Bun, Not Node
```bash
# WRONG
node src/index.tsx
npm run start
# CORRECT
bun run src/index.tsx
bun run start
```
### Async Top-level
Bun supports top-level await, but be careful:
```tsx
// index.tsx - This works in Bun
const renderer = await createCliRenderer()
createRoot(renderer).render(<App />)
// If you need to handle errors
try {
const renderer = await createCliRenderer()
createRoot(renderer).render(<App />)
} catch (error) {
console.error("Failed to initialize:", error)
process.exit(1)
}
```
## Common Error Messages
### "Cannot read properties of undefined (reading 'root')"
Renderer not initialized:
```tsx
// WRONG
const renderer = createCliRenderer() // Missing await!
createRoot(renderer).render(<App />)
// CORRECT
const renderer = await createCliRenderer()
createRoot(renderer).render(<App />)
```
### "Invalid hook call"
Hooks called outside component:
```tsx
// WRONG
const dimensions = useTerminalDimensions() // Outside component!
function App() {
return <text>{dimensions.width}</text>
}
// CORRECT
function App() {
const dimensions = useTerminalDimensions()
return <text>{dimensions.width}</text>
}
```
@@ -1,501 +0,0 @@
# React Patterns
## State Management
### Local State with useState
```tsx
import { useState } from "react"
function Counter() {
const [count, setCount] = useState(0)
return (
<box flexDirection="row" gap={2}>
<text>Count: {count}</text>
<box border onMouseDown={() => setCount(c => c - 1)}>
<text>-</text>
</box>
<box border onMouseDown={() => setCount(c => c + 1)}>
<text>+</text>
</box>
</box>
)
}
```
### Complex State with useReducer
```tsx
import { useReducer } from "react"
type State = {
items: string[]
selectedIndex: number
}
type Action =
| { type: "ADD_ITEM"; item: string }
| { type: "REMOVE_ITEM"; index: number }
| { type: "SELECT"; index: number }
function reducer(state: State, action: Action): State {
switch (action.type) {
case "ADD_ITEM":
return { ...state, items: [...state.items, action.item] }
case "REMOVE_ITEM":
return {
...state,
items: state.items.filter((_, i) => i !== action.index),
}
case "SELECT":
return { ...state, selectedIndex: action.index }
}
}
function ItemList() {
const [state, dispatch] = useReducer(reducer, {
items: [],
selectedIndex: 0,
})
// Use state and dispatch...
}
```
### Context for Global State
```tsx
import { createContext, useContext, useState, ReactNode } from "react"
type Theme = "dark" | "light"
const ThemeContext = createContext<{
theme: Theme
setTheme: (theme: Theme) => void
} | null>(null)
function ThemeProvider({ children }: { children: ReactNode }) {
const [theme, setTheme] = useState<Theme>("dark")
return (
<ThemeContext.Provider value={{ theme, setTheme }}>
{children}
</ThemeContext.Provider>
)
}
function useTheme() {
const context = useContext(ThemeContext)
if (!context) throw new Error("useTheme must be used within ThemeProvider")
return context
}
// Usage
function App() {
return (
<ThemeProvider>
<ThemedBox />
</ThemeProvider>
)
}
function ThemedBox() {
const { theme } = useTheme()
return (
<box backgroundColor={theme === "dark" ? "#1a1a2e" : "#f0f0f0"}>
<text fg={theme === "dark" ? "#fff" : "#000"}>
Current theme: {theme}
</text>
</box>
)
}
```
## Focus Management
### Focus State
```tsx
import { useState } from "react"
import { useKeyboard } from "@opentui/react"
function FocusableForm() {
const [focusIndex, setFocusIndex] = useState(0)
const fields = ["name", "email", "message"]
useKeyboard((key) => {
if (key.name === "tab") {
setFocusIndex(i => (i + 1) % fields.length)
}
if (key.shift && key.name === "tab") {
setFocusIndex(i => (i - 1 + fields.length) % fields.length)
}
})
return (
<box flexDirection="column" gap={1}>
{fields.map((field, i) => (
<input
key={field}
placeholder={`Enter ${field}...`}
focused={i === focusIndex}
/>
))}
</box>
)
}
```
### Ref-based Focus
```tsx
import { useRef, useEffect } from "react"
function AutoFocusInput() {
const inputRef = useRef<any>(null)
useEffect(() => {
// Focus on mount
inputRef.current?.focus()
}, [])
return <input ref={inputRef} placeholder="Auto-focused" />
}
```
## Keyboard Navigation
### Global Shortcuts
```tsx
import { useKeyboard, useRenderer } from "@opentui/react"
function App() {
const renderer = useRenderer()
useKeyboard((key) => {
// Quit on Escape or Ctrl+C - use renderer.destroy(), never process.exit()
if (key.name === "escape" || (key.ctrl && key.name === "c")) {
renderer.destroy()
return
}
// Toggle help on ?
if (key.name === "?" || (key.shift && key.name === "/")) {
setShowHelp(h => !h)
}
// Vim-style navigation
if (key.name === "j") moveDown()
if (key.name === "k") moveUp()
})
return <box>{/* ... */}</box>
}
```
### Component-level Shortcuts
```tsx
function Editor() {
const [mode, setMode] = useState<"normal" | "insert">("normal")
useKeyboard((key) => {
if (mode === "normal") {
if (key.name === "i") setMode("insert")
if (key.name === "escape") setMode("normal")
} else {
if (key.name === "escape") setMode("normal")
// Handle text input in insert mode
}
})
return (
<box>
<text>Mode: {mode}</text>
<textarea focused={mode === "insert"} />
</box>
)
}
```
## Form Handling
### Controlled Inputs
```tsx
import { useState } from "react"
function LoginForm() {
const [username, setUsername] = useState("")
const [password, setPassword] = useState("")
const handleSubmit = () => {
console.log("Login:", { username, password })
}
return (
<box flexDirection="column" gap={1} padding={2} border>
<text>Login</text>
<box flexDirection="row" gap={1}>
<text>Username:</text>
<input
value={username}
onChange={setUsername}
width={20}
/>
</box>
<box flexDirection="row" gap={1}>
<text>Password:</text>
<input
value={password}
onChange={setPassword}
width={20}
/>
</box>
<box border onMouseDown={handleSubmit}>
<text>Submit</text>
</box>
</box>
)
}
```
### Form Validation
```tsx
function ValidatedForm() {
const [email, setEmail] = useState("")
const [error, setError] = useState("")
const validateEmail = (value: string) => {
if (!value.includes("@")) {
setError("Invalid email address")
} else {
setError("")
}
setEmail(value)
}
return (
<box flexDirection="column" gap={1}>
<input
value={email}
onChange={validateEmail}
placeholder="Email"
/>
{error && <text fg="red">{error}</text>}
</box>
)
}
```
## Responsive Design
### Terminal-size Responsive
```tsx
import { useTerminalDimensions } from "@opentui/react"
function ResponsiveLayout() {
const { width } = useTerminalDimensions()
// Stack vertically on narrow terminals
const isNarrow = width < 80
return (
<box flexDirection={isNarrow ? "column" : "row"}>
<box flexGrow={isNarrow ? 0 : 1} height={isNarrow ? 10 : "100%"}>
<text>Sidebar</text>
</box>
<box flexGrow={1}>
<text>Main Content</text>
</box>
</box>
)
}
```
### Dynamic Layouts
```tsx
function DynamicGrid({ items }: { items: string[] }) {
const { width } = useTerminalDimensions()
const columns = Math.max(1, Math.floor(width / 20))
return (
<box flexDirection="row" flexWrap="wrap">
{items.map((item, i) => (
<box key={i} width={`${100 / columns}%`} padding={1}>
<text>{item}</text>
</box>
))}
</box>
)
}
```
## Async Data Loading
### Loading States
```tsx
import { useState, useEffect } from "react"
function DataDisplay() {
const [data, setData] = useState<string[] | null>(null)
const [loading, setLoading] = useState(true)
const [error, setError] = useState<string | null>(null)
useEffect(() => {
async function load() {
try {
const response = await fetch("https://api.example.com/data")
const json = await response.json()
setData(json.items)
} catch (e) {
setError(e instanceof Error ? e.message : "Unknown error")
} finally {
setLoading(false)
}
}
load()
}, [])
if (loading) {
return <text>Loading...</text>
}
if (error) {
return <text fg="red">Error: {error}</text>
}
return (
<box flexDirection="column">
{data?.map((item, i) => (
<text key={i}>{item}</text>
))}
</box>
)
}
```
## Animation Patterns
### Simple Animations
```tsx
import { useState, useEffect } from "react"
import { useTimeline } from "@opentui/react"
function ProgressBar() {
const [progress, setProgress] = useState(0)
const timeline = useTimeline({ duration: 3000 })
useEffect(() => {
timeline.add(
{ value: 0 },
{
value: 100,
duration: 3000,
ease: "linear",
onUpdate: (anim) => {
setProgress(Math.round(anim.targets[0].value))
},
}
)
}, [])
return (
<box flexDirection="column" gap={1}>
<text>Progress: {progress}%</text>
<box width={50} height={1} backgroundColor="#333">
<box
width={`${progress}%`}
height={1}
backgroundColor="#00ff00"
/>
</box>
</box>
)
}
```
### Interval-based Updates
```tsx
function Clock() {
const [time, setTime] = useState(new Date())
useEffect(() => {
const interval = setInterval(() => {
setTime(new Date())
}, 1000)
return () => clearInterval(interval)
}, [])
return <text>{time.toLocaleTimeString()}</text>
}
```
## Component Composition
### Render Props
```tsx
function Focusable({
children
}: {
children: (focused: boolean) => React.ReactNode
}) {
const [focused, setFocused] = useState(false)
return (
<box
onMouseDown={() => setFocused(true)}
onMouseUp={() => setFocused(false)}
>
{children(focused)}
</box>
)
}
// Usage
<Focusable>
{(focused) => (
<text fg={focused ? "#00ff00" : "#ffffff"}>
{focused ? "Focused!" : "Click me"}
</text>
)}
</Focusable>
```
### Higher-Order Components
```tsx
function withBorder<P extends object>(
Component: React.ComponentType<P>,
borderStyle: string = "single"
) {
return function BorderedComponent(props: P) {
return (
<box border borderStyle={borderStyle} padding={1}>
<Component {...props} />
</box>
)
}
}
// Usage
const BorderedText = withBorder(({ content }: { content: string }) => (
<text>{content}</text>
))
<BorderedText content="Hello!" />
```
@@ -1,201 +0,0 @@
# OpenTUI Solid (@opentui/solid)
A SolidJS reconciler for building terminal user interfaces with fine-grained reactivity. Get optimal performance with Solid's signal-based approach.
## Overview
OpenTUI Solid provides:
- **Custom reconciler**: Solid components render to OpenTUI renderables
- **JSX intrinsics**: `<text>`, `<box>`, `<input>`, etc.
- **Hooks**: `useKeyboard`, `useRenderer`, `useTimeline`, etc.
- **Fine-grained reactivity**: Only what changes re-renders
- **Portal & Dynamic**: Advanced composition primitives
## When to Use Solid
Use the Solid reconciler when:
- You want optimal re-rendering performance
- You prefer signal-based reactivity
- You need fine-grained control over updates
- Building performance-critical applications
- You already know SolidJS
## When NOT to Use Solid
| Scenario | Use Instead |
|----------|-------------|
| Team knows React, not Solid | `@opentui/react` |
| Maximum control needed | `@opentui/core` |
| Smallest bundle size | `@opentui/core` |
| Building a framework/library | `@opentui/core` |
## Quick Start
```bash
bunx create-tui@latest -t solid my-app
cd my-app && bun install
```
The CLI creates the `my-app` directory for you - it must **not already exist**.
Options: `--no-git` (skip git init), `--no-install` (skip bun install)
**Agent guidance**: Always use autonomous mode with `-t <template>` flag. Never use interactive mode (`bunx create-tui@latest my-app` without `-t`) as it requires user prompts that agents cannot respond to.
Or manually:
```bash
bun install @opentui/solid @opentui/core solid-js
```
```tsx
import { render } from "@opentui/solid"
import { createSignal } from "solid-js"
function App() {
const [count, setCount] = createSignal(0)
return (
<box border padding={2}>
<text>Count: {count()}</text>
<box
border
onMouseDown={() => setCount(c => c + 1)}
>
<text>Click me!</text>
</box>
</box>
)
}
render(() => <App />)
```
## Core Concepts
### Signals
Solid uses signals for reactive state:
```tsx
import { createSignal, createEffect } from "solid-js"
function Counter() {
const [count, setCount] = createSignal(0)
// Effect runs when count changes
createEffect(() => {
console.log("Count is now:", count())
})
return <text>Count: {count()}</text>
}
```
### JSX Elements
Solid maps JSX intrinsic elements to OpenTUI renderables:
```tsx
// Note: Some use underscores (Solid convention)
<text>Hello</text> // TextRenderable
<box border>Content</box> // BoxRenderable
<input placeholder="..." /> // InputRenderable
<select options={[...]} /> // SelectRenderable
<tab_select /> // TabSelectRenderable (underscore!)
<ascii_font /> // ASCIIFontRenderable (underscore!)
<line_number /> // LineNumberRenderable (underscore!)
```
### Text Modifiers
Inside `<text>`, use modifier elements:
```tsx
<text>
<strong>Bold</strong>, <em>italic</em>, and <u>underlined</u>
<span fg="red">Colored text</span>
<br />
New line with <a href="https://example.com">link</a>
</text>
```
## Available Components
### Layout & Display
- `<text>` - Styled text content
- `<box>` - Container with borders and layout
- `<scrollbox>` - Scrollable container
- `<ascii_font>` - ASCII art text (note underscore)
### Input
- `<input>` - Single-line text input
- `<textarea>` - Multi-line text input
- `<select>` - List selection
- `<tab_select>` - Tab-based selection (note underscore)
### Code & Diff
- `<code>` - Syntax-highlighted code
- `<line_number>` - Code with line numbers (note underscore)
- `<diff>` - Unified or split diff viewer
### Text Modifiers (inside `<text>`)
- `<span>` - Inline styled text
- `<strong>`, `<b>` - Bold
- `<em>`, `<i>` - Italic
- `<u>` - Underline
- `<br>` - Line break
- `<a>` - Link
## Special Components
### Portal
Render children to a different mount node:
```tsx
import { Portal } from "@opentui/solid"
function Overlay() {
return (
<Portal mount={renderer.root}>
<box position="absolute" left={10} top={5} border>
<text>Overlay content</text>
</box>
</Portal>
)
}
```
### Dynamic
Render components dynamically:
```tsx
import { Dynamic } from "@opentui/solid"
function DynamicInput(props: { multiline: boolean }) {
return (
<Dynamic
component={props.multiline ? "textarea" : "input"}
placeholder="Enter text..."
/>
)
}
```
## In This Reference
- [Configuration](./configuration.md) - Project setup, tsconfig, bunfig, building
- [API](./api.md) - Components, hooks, render function
- [Patterns](./patterns.md) - Signals, stores, control flow, composition
- [Gotchas](./gotchas.md) - Common issues, debugging, limitations
## See Also
- [Core](../core/REFERENCE.md) - Underlying imperative API
- [React](../react/REFERENCE.md) - Alternative declarative approach
- [Components](../components/REFERENCE.md) - Component reference by category
- [Layout](../layout/REFERENCE.md) - Flexbox layout system
- [Keyboard](../keyboard/REFERENCE.md) - Input handling and shortcuts
- [Testing](../testing/REFERENCE.md) - Test renderer and snapshots
@@ -1,564 +0,0 @@
# Solid API Reference
## Rendering
### render(node, rendererOrConfig?)
Renders a Solid component tree into a CLI renderer.
```tsx
import { render } from "@opentui/solid"
// Simple usage - creates renderer automatically
render(() => <App />)
// With config
render(() => <App />, {
exitOnCtrlC: false,
targetFPS: 60,
})
// With existing renderer
import { createCliRenderer } from "@opentui/core"
const renderer = await createCliRenderer()
render(() => <App />, renderer)
```
### testRender(node, options?)
Create a test renderer for snapshots and tests.
```tsx
import { testRender } from "@opentui/solid"
const testSetup = await testRender(() => <App />, {
width: 40,
height: 10,
})
// Access test utilities
testSetup.snapshot() // Get current render
testSetup.renderer // Access renderer
```
### extend(components)
Register custom renderables as JSX intrinsic elements.
```tsx
import { extend } from "@opentui/solid"
import { CustomRenderable } from "./custom"
extend({
custom: CustomRenderable,
})
// Now usable in JSX
<custom prop="value" />
```
### getComponentCatalogue()
Returns the current component catalogue.
```tsx
import { getComponentCatalogue } from "@opentui/solid"
const catalogue = getComponentCatalogue()
console.log(Object.keys(catalogue))
```
## Hooks
### useRenderer()
Access the OpenTUI renderer instance.
```tsx
import { useRenderer } from "@opentui/solid"
import { onMount } from "solid-js"
function App() {
const renderer = useRenderer()
onMount(() => {
console.log(`Terminal: ${renderer.width}x${renderer.height}`)
renderer.console.show()
// Access theme mode (dark/light based on terminal settings)
console.log(`Theme: ${renderer.themeMode}`) // "dark" | "light" | null
})
return <text>Hello</text>
}
// Listen for theme mode changes
function ThemedApp() {
const renderer = useRenderer()
const [theme, setTheme] = createSignal(renderer.themeMode ?? "dark")
onMount(() => {
renderer.on("theme_mode", (mode: "dark" | "light") => setTheme(mode))
})
return (
<box backgroundColor={theme() === "dark" ? "#1a1a2e" : "#ffffff"}>
<text fg={theme() === "dark" ? "#fff" : "#000"}>
Current theme: {theme()}
</text>
</box>
)
}
```
### useKeyboard(handler, options?)
Handle keyboard events.
```tsx
import { useKeyboard, useRenderer } from "@opentui/solid"
function App() {
const renderer = useRenderer()
useKeyboard((key) => {
if (key.name === "escape") {
renderer.destroy() // Never use process.exit() directly!
}
if (key.ctrl && key.name === "s") {
saveDocument()
}
})
return <text>Press ESC to exit</text>
}
// With release events
function GameControls() {
const [pressed, setPressed] = createSignal(new Set<string>())
useKeyboard(
(event) => {
setPressed(keys => {
const newKeys = new Set(keys)
if (event.eventType === "release") {
newKeys.delete(event.name)
} else {
newKeys.add(event.name)
}
return newKeys
})
},
{ release: true }
)
return <text>Pressed: {Array.from(pressed()).join(", ")}</text>
}
```
### usePaste(handler)
Handle paste events. Receives a `PasteEvent` with raw bytes.
```tsx
import { usePaste } from "@opentui/solid"
import { decodePasteBytes } from "@opentui/core"
function PasteHandler() {
usePaste((event) => {
const text = decodePasteBytes(event.bytes)
console.log("Pasted:", text)
})
return <text>Paste something</text>
}
```
### onResize(callback)
Handle terminal resize events.
```tsx
import { onResize } from "@opentui/solid"
function App() {
onResize((width, height) => {
console.log(`Resized to ${width}x${height}`)
})
return <text>Resize the terminal</text>
}
```
### useTerminalDimensions()
Get reactive terminal dimensions.
```tsx
import { useTerminalDimensions } from "@opentui/solid"
function ResponsiveLayout() {
const dimensions = useTerminalDimensions()
return (
<box flexDirection={dimensions().width > 80 ? "row" : "column"}>
<text>Width: {dimensions().width}</text>
<text>Height: {dimensions().height}</text>
</box>
)
}
```
### onFocus(callback) / onBlur(callback)
Handle terminal window focus and blur events. Solid-only hooks.
```tsx
import { onFocus, onBlur } from "@opentui/solid"
function App() {
onFocus(() => {
console.log("Terminal window gained focus")
})
onBlur(() => {
console.log("Terminal window lost focus")
})
return <text>Focus/blur tracking</text>
}
```
These hooks fire when the terminal emulator window gains or loses operating system focus. The renderer deduplicates events (won't re-emit the same focus state).
### useSelectionHandler(handler)
Handle text selection events. Fires when the user finishes a mouse selection (mouse-up). Solid-only hook - React does not have this.
```tsx
import { useSelectionHandler } from "@opentui/solid"
import type { Selection } from "@opentui/core"
function SelectableText() {
const [selected, setSelected] = createSignal("")
const renderer = useRenderer()
useSelectionHandler((selection: Selection) => {
const text = selection.getSelectedText()
if (text) {
setSelected(text)
renderer.copyToClipboardOSC52(text)
}
})
return (
<box flexDirection="column">
<text selectable>Select this text with your mouse</text>
<text fg="#888">Selected: {selected()}</text>
</box>
)
}
```
The `Selection` object aggregates selected text from all selectable renderables in the tree. See `keyboard/REFERENCE.md` (selection) for full details on the selection API and traversal model.
### useTimeline(options?)
Create animations with the timeline system.
```tsx
import { useTimeline } from "@opentui/solid"
import { createSignal, onMount } from "solid-js"
function AnimatedBox() {
const [width, setWidth] = createSignal(0)
const timeline = useTimeline({
duration: 2000,
loop: false,
})
onMount(() => {
timeline.add(
{ width: 0 },
{
width: 50,
duration: 2000,
ease: "easeOutQuad",
onUpdate: (anim) => {
setWidth(Math.round(anim.targets[0].width))
},
}
)
})
return <box style={{ width: width(), height: 3, backgroundColor: "#6a5acd" }} />
}
```
## Components
### Text Component
```tsx
<text
content="Hello" // Or use children
fg="#FFFFFF" // Foreground color
bg="#000000" // Background color
selectable={true} // Allow text selection
>
{/* Use nested modifier tags for styling */}
<span fg="red">Red</span>
<strong>Bold</strong>
<em>Italic</em>
<u>Underline</u>
<br />
<a href="https://...">Link</a>
</text>
```
> **Note**: Do NOT use `bold`, `italic`, `underline` as props on `<text>`. Use nested modifier tags like `<strong>`, `<em>`, `<u>` instead.
### Box Component
```tsx
<box
// Borders
border // Enable border
borderStyle="single" // single | double | rounded | bold
borderColor="#FFFFFF"
title="Title"
titleAlignment="center" // left | center | right
// Colors
backgroundColor="#1a1a2e"
// Layout
flexDirection="row"
justifyContent="center"
alignItems="center"
gap={2}
// Spacing
padding={2}
paddingX={2} // Horizontal (left + right)
paddingY={1} // Vertical (top + bottom)
margin={1}
marginX={2} // Horizontal (left + right)
marginY={1} // Vertical (top + bottom)
// Dimensions
width={40}
height={10}
flexGrow={1}
// Focus
focusable // Allow box to receive focus
focused={isFocused()} // Controlled focus state
// Events
onMouseDown={(e) => {}}
onMouseUp={(e) => {}}
>
{children}
</box>
```
### Scrollbox Component
```tsx
<scrollbox
focused // Enable keyboard scrolling
style={{
scrollbarOptions: {
showArrows: true,
trackOptions: {
foregroundColor: "#7aa2f7",
backgroundColor: "#414868",
},
},
}}
>
<For each={items()}>
{(item) => <text>{item}</text>}
</For>
</scrollbox>
```
### Input Component
```tsx
<input
value={value()}
onInput={(newValue) => setValue(newValue)}
placeholder="Enter text..."
focused
width={30}
/>
```
### Textarea Component
```tsx
<textarea
value={text()}
onInput={(newValue) => setText(newValue)}
placeholder="Enter multiple lines..."
focused
width={40}
height={10}
/>
```
### Select Component
```tsx
<select
options={[
{ name: "Option 1", description: "First", value: "1" },
{ name: "Option 2", description: "Second", value: "2" },
]}
onChange={(index, option) => setSelected(option)}
selectedIndex={0}
focused
/>
```
### Tab Select Component (Note: underscore)
```tsx
<tab_select
options={[
{ name: "Home", description: "Dashboard" },
{ name: "Settings", description: "Configuration" },
]}
onChange={(index, option) => setTab(option)}
tabWidth={20}
focused
/>
```
### ASCII Font Component (Note: underscore)
```tsx
<ascii_font
text="TITLE"
font="tiny" // tiny | block | slick | shade
color="#FFFFFF"
/>
```
### Code Component
```tsx
<code
code={sourceCode}
language="typescript"
/>
```
### Line Number Component (Note: underscore)
```tsx
<line_number
code={sourceCode}
language="typescript"
startLine={1}
highlightedLines={[5]}
/>
```
### Diff Component
```tsx
<diff
oldCode={originalCode}
newCode={modifiedCode}
language="typescript"
mode="unified" // unified | split
syncScroll // Sync scroll between split view panes
/>
```
## Control Flow
Solid's control flow components work with OpenTUI:
### For
```tsx
import { For } from "solid-js"
<For each={items()}>
{(item, index) => (
<box key={index()}>
<text>{item.name}</text>
</box>
)}
</For>
```
### Show
```tsx
import { Show } from "solid-js"
<Show when={isVisible()} fallback={<text>Hidden</text>}>
<text>Visible content</text>
</Show>
```
### Switch/Match
```tsx
import { Switch, Match } from "solid-js"
<Switch>
<Match when={status() === "loading"}>
<text>Loading...</text>
</Match>
<Match when={status() === "error"}>
<text fg="red">Error!</text>
</Match>
<Match when={status() === "success"}>
<text fg="green">Success!</text>
</Match>
</Switch>
```
### Index
```tsx
import { Index } from "solid-js"
<Index each={items()}>
{(item, index) => (
<text>{index}: {item().name}</text>
)}
</Index>
```
## Special Components
### Portal
```tsx
import { Portal } from "@opentui/solid"
<Portal mount={targetNode}>
<box>Portal content</box>
</Portal>
```
### Dynamic
```tsx
import { Dynamic } from "@opentui/solid"
<Dynamic
component={isMultiline() ? "textarea" : "input"}
placeholder="Enter text..."
focused
/>
```
@@ -1,316 +0,0 @@
# Solid Configuration
## Project Setup
### Quick Start
```bash
bunx create-tui@latest -t solid my-app
cd my-app && bun install
```
The CLI creates the `my-app` directory for you - it must **not already exist**.
Options: `--no-git` (skip git init), `--no-install` (skip bun install)
### Manual Setup
```bash
mkdir my-tui && cd my-tui
bun init
bun install @opentui/solid @opentui/core solid-js
```
## TypeScript Configuration
### tsconfig.json
```json
{
"compilerOptions": {
"lib": ["ESNext"],
"target": "ESNext",
"module": "NodeNext",
"moduleResolution": "NodeNext",
"jsx": "preserve",
"jsxImportSource": "@opentui/solid",
"strict": true,
"skipLibCheck": true,
"noEmit": true,
"types": ["bun-types"]
},
"include": ["src/**/*"]
}
```
**Critical settings:**
- `jsx: "preserve"` - Let Solid's compiler handle JSX
- `jsxImportSource: "@opentui/solid"` - Import JSX runtime from OpenTUI Solid
- `module` / `moduleResolution: "NodeNext"` - Recommended for OpenTUI compatibility
## Bun Configuration
### bunfig.toml
**Required** for the Solid compiler:
```toml
preload = ["@opentui/solid/preload"]
```
This loads the Solid JSX transform before your code runs.
## Package Configuration
### package.json
```json
{
"name": "my-tui-app",
"type": "module",
"scripts": {
"start": "bun run src/index.tsx",
"dev": "bun --watch run src/index.tsx",
"test": "bun test",
"build": "bun run build.ts"
},
"dependencies": {
"@opentui/core": "latest",
"@opentui/solid": "latest",
"solid-js": "latest"
},
"devDependencies": {
"@types/bun": "latest",
"typescript": "latest"
}
}
```
## Project Structure
Recommended structure:
```
my-tui-app/
├── src/
│ ├── components/
│ │ ├── Header.tsx
│ │ ├── Sidebar.tsx
│ │ └── MainContent.tsx
│ ├── stores/
│ │ └── appStore.ts
│ ├── App.tsx
│ └── index.tsx
├── bunfig.toml # Required!
├── package.json
└── tsconfig.json
```
### Entry Point (src/index.tsx)
```tsx
import { render } from "@opentui/solid"
import { App } from "./App"
render(() => <App />)
```
### App Component (src/App.tsx)
```tsx
import { Header } from "./components/Header"
import { Sidebar } from "./components/Sidebar"
import { MainContent } from "./components/MainContent"
export function App() {
return (
<box flexDirection="column" width="100%" height="100%">
<Header />
<box flexDirection="row" flexGrow={1}>
<Sidebar />
<MainContent />
</box>
</box>
)
}
```
## Renderer Configuration
### render() Options
```tsx
import { render } from "@opentui/solid"
import { ConsolePosition } from "@opentui/core"
render(() => <App />, {
// Rendering
targetFPS: 60,
// Behavior
exitOnCtrlC: true,
autoFocus: true, // Auto-focus elements on click (default: true)
useMouse: true, // Enable mouse support (default: true)
// Debug console
consoleOptions: {
position: ConsolePosition.BOTTOM,
sizePercent: 30,
startInDebugMode: false,
},
// Cleanup
onDestroy: () => {
// Cleanup code
},
})
```
### Using Existing Renderer
```tsx
import { render } from "@opentui/solid"
import { createCliRenderer } from "@opentui/core"
const renderer = await createCliRenderer({
exitOnCtrlC: false,
})
render(() => <App />, renderer)
```
## Building for Distribution
### Build Script (build.ts)
```typescript
import solidPlugin from "@opentui/solid/bun-plugin"
await Bun.build({
entrypoints: ["./src/index.tsx"],
outdir: "./dist",
target: "bun",
minify: true,
plugins: [solidPlugin],
})
console.log("Build complete!")
```
Run: `bun run build.ts`
### Creating Executables
```typescript
import solidPlugin from "@opentui/solid/bun-plugin"
await Bun.build({
entrypoints: ["./src/index.tsx"],
target: "bun",
plugins: [solidPlugin],
compile: {
target: "bun-darwin-arm64", // or bun-linux-x64, etc.
outfile: "my-app",
},
})
```
**Available targets:**
- `bun-darwin-arm64` - macOS Apple Silicon
- `bun-darwin-x64` - macOS Intel
- `bun-linux-x64` - Linux x64
- `bun-linux-arm64` - Linux ARM64
- `bun-windows-x64` - Windows x64
## Environment Variables
Create `.env` for development:
```env
# Debug settings
OTUI_SHOW_STATS=false
SHOW_CONSOLE=false
# App settings
API_URL=https://api.example.com
```
Bun auto-loads `.env` files:
```tsx
const apiUrl = process.env.API_URL
```
## Testing Configuration
### Test Setup
```typescript
// src/test-utils.tsx
import { testRender } from "@opentui/solid"
export async function renderForTest(
Component: () => JSX.Element,
options = { width: 80, height: 24 }
) {
return await testRender(Component, options)
}
```
### Test Example
```typescript
// src/components/Counter.test.tsx
import { test, expect } from "bun:test"
import { renderForTest } from "../test-utils"
import { Counter } from "./Counter"
test("Counter renders initial value", async () => {
const { snapshot } = await renderForTest(() => <Counter initialValue={5} />)
expect(snapshot()).toContain("Count: 5")
})
```
## Common Configuration Issues
### Missing bunfig.toml
**Symptom**: JSX not transformed, syntax errors
**Fix**: Create `bunfig.toml` with preload:
```toml
preload = ["@opentui/solid/preload"]
```
### Wrong JSX Settings
**Symptom**: JSX compiles to React calls
**Fix**: Ensure tsconfig has:
```json
{
"compilerOptions": {
"jsx": "preserve",
"jsxImportSource": "@opentui/solid"
}
}
```
### Build Missing Plugin
**Symptom**: Built output has untransformed JSX
**Fix**: Add Solid plugin to build:
```typescript
import solidPlugin from "@opentui/solid/bun-plugin"
await Bun.build({
// ...
plugins: [solidPlugin],
})
```
@@ -1,427 +0,0 @@
# Solid Gotchas
## Critical
### Never use `process.exit()` directly
**This is the most common mistake.** Using `process.exit()` leaves the terminal in a broken state (cursor hidden, raw mode, alternate screen).
```tsx
// WRONG - Terminal left in broken state
process.exit(0)
// CORRECT - Use renderer.destroy()
import { useRenderer } from "@opentui/solid"
function App() {
const renderer = useRenderer()
const handleExit = () => {
renderer.destroy() // Cleans up and exits properly
}
}
```
`renderer.destroy()` restores the terminal (exits alternate screen, restores cursor, etc.) before exiting.
## Configuration Issues
### Missing bunfig.toml
**Symptom**: JSX syntax errors, components not rendering
```
SyntaxError: Unexpected token '<'
```
**Fix**: Create `bunfig.toml` in project root:
```toml
preload = ["@opentui/solid/preload"]
```
### Wrong JSX Settings
**Symptom**: JSX compiles to React, errors about React not found
**Fix**: Ensure tsconfig.json has:
```json
{
"compilerOptions": {
"jsx": "preserve",
"jsxImportSource": "@opentui/solid"
}
}
```
### Build Without Plugin
**Symptom**: Built bundle has raw JSX
**Fix**: Add Solid plugin to build:
```typescript
import solidPlugin from "@opentui/solid/bun-plugin"
await Bun.build({
// ...
plugins: [solidPlugin],
})
```
## Reactivity Issues
### Accessing Signals Without Calling
**Symptom**: Value never updates, shows `[Function]`
```tsx
// WRONG - Missing ()
const [count, setCount] = createSignal(0)
<text>Count: {count}</text> // Shows [Function]
// CORRECT
<text>Count: {count()}</text>
```
### Breaking Reactivity with Destructuring
**Symptom**: Props stop being reactive
```tsx
// WRONG - Breaks reactivity
function Component(props: { value: number }) {
const { value } = props // Destructured once, never updates!
return <text>{value}</text>
}
// CORRECT - Keep props reactive
function Component(props: { value: number }) {
return <text>{props.value}</text>
}
// OR use splitProps
function Component(props: { value: number; other: string }) {
const [local, rest] = splitProps(props, ["value"])
return <text>{local.value}</text>
}
```
### Effects Not Running
**Symptom**: createEffect doesn't trigger
```tsx
// WRONG - Signal not accessed in effect
const [count, setCount] = createSignal(0)
createEffect(() => {
console.log("Count changed") // Never runs after initial!
})
// CORRECT - Access the signal
createEffect(() => {
console.log("Count:", count()) // Runs when count changes
})
```
## HTML Entity Decoding
Solid's reconciler automatically decodes HTML entities in JSX text content. This means `&lt;`, `&gt;`, `&amp;`, etc. render as their literal characters:
```tsx
// These render correctly in Solid
<text>Use &lt;box&gt; for containers</text> // Displays: Use <box> for containers
<text>A &amp; B</text> // Displays: A & B
```
This applies to text nodes, the `content` prop, and the `text` prop.
## Component Naming
### Underscore vs Hyphen
Solid uses underscores for multi-word component names:
```tsx
// WRONG - React-style naming
<tab-select /> // Error!
<ascii-font /> // Error!
<line-number /> // Error!
// CORRECT - Solid naming
<tab_select />
<ascii_font />
<line_number />
```
**Component mapping:**
| Concept | React | Solid |
|---------|-------|-------|
| Tab Select | `<tab-select>` | `<tab_select>` |
| ASCII Font | `<ascii-font>` | `<ascii_font>` |
| Line Number | `<line-number>` | `<line_number>` |
## Focus Issues
### Focus Not Working
Components need explicit focus:
```tsx
// WRONG
<input placeholder="Type here..." />
// CORRECT
<input placeholder="Type here..." focused />
```
### Select Not Responding
```tsx
// WRONG
<select options={["a", "b"]} />
// CORRECT
<select
options={[
{ name: "A", description: "Option A", value: "a" },
{ name: "B", description: "Option B", value: "b" },
]}
onSelect={(index, option) => {
// Called when Enter is pressed
console.log("Selected:", option.name)
}}
focused
/>
```
### Select Events Confusion
Remember: `onSelect` fires on Enter (selection confirmed), `onChange` fires on navigation:
```tsx
// WRONG - expecting onChange to fire on Enter
<select
options={options()}
onChange={(i, opt) => submitForm(opt)} // This fires on arrow keys!
/>
// CORRECT
<select
options={options()}
onSelect={(i, opt) => submitForm(opt)} // Enter pressed - submit
onChange={(i, opt) => showPreview(opt)} // Arrow keys - preview
/>
```
## Control Flow Issues
### For vs Index
Use `For` for arrays of objects, `Index` for primitives:
```tsx
// For objects - item is reactive
<For each={objects()}>
{(obj) => <text>{obj.name}</text>}
</For>
// For primitives - use Index, item() is reactive
<Index each={strings()}>
{(str, index) => <text>{index}: {str()}</text>}
</Index>
```
### Missing Fallback
Show requires fallback for proper rendering:
```tsx
// May cause issues
<Show when={data()}>
<Component />
</Show>
// Better - explicit fallback
<Show when={data()} fallback={<text>Loading...</text>}>
<Component />
</Show>
```
## Cleanup Issues
### Forgetting onCleanup
**Symptom**: Memory leaks, multiple intervals running
```tsx
// WRONG - Interval never cleared
function Timer() {
const [time, setTime] = createSignal(0)
setInterval(() => setTime(t => t + 1), 1000)
return <text>{time()}</text>
}
// CORRECT
function Timer() {
const [time, setTime] = createSignal(0)
const interval = setInterval(() => setTime(t => t + 1), 1000)
onCleanup(() => clearInterval(interval))
return <text>{time()}</text>
}
```
### Effect Cleanup
```tsx
createEffect(() => {
const subscription = subscribe(data())
// WRONG - No cleanup
// subscription stays active
// CORRECT
onCleanup(() => subscription.unsubscribe())
})
```
## Store Issues
### Mutating Store Directly
**Symptom**: Changes don't trigger updates
```tsx
const [state, setState] = createStore({ items: [] })
// WRONG - Direct mutation
state.items.push(newItem) // Won't trigger updates!
// CORRECT - Use setState
setState("items", items => [...items, newItem])
```
### Nested Updates
```tsx
const [state, setState] = createStore({
user: { profile: { name: "John" } }
})
// WRONG
state.user.profile.name = "Jane"
// CORRECT
setState("user", "profile", "name", "Jane")
```
## Debugging
### Console Not Visible
OpenTUI captures console output:
```tsx
import { useRenderer } from "@opentui/solid"
import { onMount } from "solid-js"
function App() {
const renderer = useRenderer()
onMount(() => {
renderer.console.show()
console.log("Now visible!")
})
return <box>{/* ... */}</box>
}
```
### Tracking Reactivity
Use `createEffect` to debug:
```tsx
createEffect(() => {
console.log("State:", {
count: count(),
items: items(),
})
})
```
## Runtime Issues
### Use Bun
```bash
# WRONG
node src/index.tsx
npm run start
# CORRECT
bun run src/index.tsx
bun run start
```
### Async render()
The render function is async when creating a renderer:
```tsx
// This is fine - Bun supports top-level await
render(() => <App />)
// If you need the renderer
import { createCliRenderer } from "@opentui/core"
import { render } from "@opentui/solid"
const renderer = await createCliRenderer()
render(() => <App />, renderer)
```
## Common Error Messages
### "Cannot read properties of undefined"
Usually a missing reactive access:
```tsx
// Check if signal is being called
<text>{count()}</text> // Note the ()
// Check if props are being accessed correctly
<text>{props.value}</text> // Not destructured
```
### "JSX element has no corresponding closing tag"
Check component naming:
```tsx
// Wrong
<tab-select></tab-select>
// Correct
<tab_select></tab_select>
```
### "store is not a function"
Stores aren't called like signals:
```tsx
const [store, setStore] = createStore({ count: 0 })
// WRONG
<text>{store().count}</text>
// CORRECT
<text>{store.count}</text>
```
@@ -1,560 +0,0 @@
# Solid Patterns
## Reactive State
### Signals
Basic reactive state with signals:
```tsx
import { createSignal } from "solid-js"
function Counter() {
const [count, setCount] = createSignal(0)
return (
<box flexDirection="row" gap={2}>
<text>Count: {count()}</text>
<box border onMouseDown={() => setCount(c => c - 1)}>
<text>-</text>
</box>
<box border onMouseDown={() => setCount(c => c + 1)}>
<text>+</text>
</box>
</box>
)
}
```
### Derived State
Compute values from signals:
```tsx
import { createSignal, createMemo } from "solid-js"
function PriceCalculator() {
const [quantity, setQuantity] = createSignal(1)
const [price, setPrice] = createSignal(9.99)
// Derived value - only recalculates when dependencies change
const total = createMemo(() => quantity() * price())
const formatted = createMemo(() => `$${total().toFixed(2)}`)
return (
<box flexDirection="column">
<text>Quantity: {quantity()}</text>
<text>Price: ${price()}</text>
<text>Total: {formatted()}</text>
</box>
)
}
```
### Effects
React to state changes:
```tsx
import { createSignal, createEffect, onCleanup } from "solid-js"
function AutoSave() {
const [content, setContent] = createSignal("")
createEffect(() => {
const text = content()
// Debounced save
const timeout = setTimeout(() => {
saveToFile(text)
}, 1000)
// Cleanup on next run or disposal
onCleanup(() => clearTimeout(timeout))
})
return (
<textarea
value={content()}
onInput={setContent}
placeholder="Auto-saves after 1 second..."
/>
)
}
```
## Stores
### createStore for Complex State
```tsx
import { createStore } from "solid-js/store"
interface AppState {
user: { name: string; email: string } | null
items: Array<{ id: number; name: string; done: boolean }>
settings: { theme: "dark" | "light" }
}
function App() {
const [state, setState] = createStore<AppState>({
user: null,
items: [],
settings: { theme: "dark" },
})
const addItem = (name: string) => {
setState("items", items => [
...items,
{ id: Date.now(), name, done: false }
])
}
const toggleItem = (id: number) => {
setState("items", item => item.id === id, "done", done => !done)
}
const setTheme = (theme: "dark" | "light") => {
setState("settings", "theme", theme)
}
return (
<box backgroundColor={state.settings.theme === "dark" ? "#1a1a2e" : "#f0f0f0"}>
<For each={state.items}>
{(item) => (
<text
fg={item.done ? "#888" : "#fff"}
onMouseDown={() => toggleItem(item.id)}
>
{item.done ? "[x]" : "[ ]"} {item.name}
</text>
)}
</For>
</box>
)
}
```
### Store with Context
Share state across components:
```tsx
import { createStore } from "solid-js/store"
import { createContext, useContext, ParentComponent } from "solid-js"
interface Store {
count: number
items: string[]
}
type StoreContextValue = [
Store,
{
increment: () => void
addItem: (item: string) => void
}
]
const StoreContext = createContext<StoreContextValue>()
const StoreProvider: ParentComponent = (props) => {
const [state, setState] = createStore<Store>({
count: 0,
items: [],
})
const actions = {
increment: () => setState("count", c => c + 1),
addItem: (item: string) => setState("items", i => [...i, item]),
}
return (
<StoreContext.Provider value={[state, actions]}>
{props.children}
</StoreContext.Provider>
)
}
function useStore() {
const context = useContext(StoreContext)
if (!context) throw new Error("useStore must be used within StoreProvider")
return context
}
// Usage
function Counter() {
const [state, { increment }] = useStore()
return (
<box onMouseDown={increment}>
<text>Count: {state.count}</text>
</box>
)
}
```
## Control Flow
### Conditional Rendering with Show
```tsx
import { Show, createSignal } from "solid-js"
function ToggleableContent() {
const [visible, setVisible] = createSignal(false)
return (
<box flexDirection="column">
<box border onMouseDown={() => setVisible(v => !v)}>
<text>Toggle</text>
</box>
<Show
when={visible()}
fallback={<text fg="#888">Content is hidden</text>}
>
<text fg="#0f0">Content is visible!</text>
</Show>
</box>
)
}
```
### Lists with For
```tsx
import { For, createSignal } from "solid-js"
function TodoList() {
const [todos, setTodos] = createSignal([
{ id: 1, text: "Learn Solid", done: false },
{ id: 2, text: "Build TUI", done: false },
])
const toggle = (id: number) => {
setTodos(todos =>
todos.map(t =>
t.id === id ? { ...t, done: !t.done } : t
)
)
}
return (
<box flexDirection="column">
<For each={todos()}>
{(todo) => (
<box onMouseDown={() => toggle(todo.id)}>
<text fg={todo.done ? "#888" : "#fff"}>
{todo.done ? "[x]" : "[ ]"} {todo.text}
</text>
</box>
)}
</For>
</box>
)
}
```
### Index for Primitive Arrays
Use `Index` when array items are primitives:
```tsx
import { Index, createSignal } from "solid-js"
function StringList() {
const [items, setItems] = createSignal(["apple", "banana", "cherry"])
return (
<box flexDirection="column">
<Index each={items()}>
{(item, index) => (
<text>{index}: {item()}</text>
)}
</Index>
</box>
)
}
```
### Switch/Match for Multiple Conditions
```tsx
import { Switch, Match, createSignal } from "solid-js"
type Status = "idle" | "loading" | "success" | "error"
function StatusDisplay() {
const [status, setStatus] = createSignal<Status>("idle")
return (
<Switch>
<Match when={status() === "idle"}>
<text>Ready</text>
</Match>
<Match when={status() === "loading"}>
<text fg="#ff0">Loading...</text>
</Match>
<Match when={status() === "success"}>
<text fg="#0f0">Success!</text>
</Match>
<Match when={status() === "error"}>
<text fg="#f00">Error occurred</text>
</Match>
</Switch>
)
}
```
## Focus Management
### Focus State
```tsx
import { createSignal } from "solid-js"
import { useKeyboard } from "@opentui/solid"
function FocusableForm() {
const [focusIndex, setFocusIndex] = createSignal(0)
const fields = ["name", "email", "message"]
useKeyboard((key) => {
if (key.name === "tab") {
setFocusIndex(i => (i + 1) % fields.length)
}
if (key.shift && key.name === "tab") {
setFocusIndex(i => (i - 1 + fields.length) % fields.length)
}
})
return (
<box flexDirection="column" gap={1}>
<Index each={fields}>
{(field, i) => (
<input
placeholder={`Enter ${field()}...`}
focused={i === focusIndex()}
/>
)}
</Index>
</box>
)
}
```
## Keyboard Navigation
### Global Shortcuts
```tsx
import { useKeyboard } from "@opentui/solid"
function App() {
const renderer = useRenderer()
useKeyboard((key) => {
if (key.name === "escape") {
renderer.destroy() // Never use process.exit() directly!
}
if (key.ctrl && key.name === "s") {
save()
}
// Vim-style
if (key.name === "j") moveDown()
if (key.name === "k") moveUp()
})
return <box>{/* ... */}</box>
}
```
## Responsive Design
### Terminal-size Responsive
```tsx
import { useTerminalDimensions } from "@opentui/solid"
function ResponsiveLayout() {
const dims = useTerminalDimensions()
return (
<box flexDirection={dims().width > 80 ? "row" : "column"}>
<box flexGrow={1}>
<text>Panel 1</text>
</box>
<box flexGrow={1}>
<text>Panel 2</text>
</box>
</box>
)
}
```
## Async Data
### Resources
```tsx
import { createResource, Suspense } from "solid-js"
async function fetchData() {
const response = await fetch("https://api.example.com/data")
return response.json()
}
function DataDisplay() {
const [data] = createResource(fetchData)
return (
<Suspense fallback={<text>Loading...</text>}>
<Show when={data()}>
{(items) => (
<For each={items()}>
{(item) => <text>{item.name}</text>}
</For>
)}
</Show>
</Suspense>
)
}
```
### Error Handling
```tsx
import { createResource, Show, ErrorBoundary } from "solid-js"
function SafeDataDisplay() {
const [data] = createResource(fetchData)
return (
<ErrorBoundary fallback={(err) => <text fg="red">Error: {err.message}</text>}>
<Show
when={!data.loading}
fallback={<text>Loading...</text>}
>
<Show
when={!data.error}
fallback={<text fg="red">Failed to load</text>}
>
<For each={data()}>
{(item) => <text>{item.name}</text>}
</For>
</Show>
</Show>
</ErrorBoundary>
)
}
```
## Component Composition
### Props and Children
```tsx
import { ParentComponent, JSX } from "solid-js"
interface PanelProps {
title: string
children: JSX.Element
}
const Panel: ParentComponent<{ title: string }> = (props) => {
return (
<box border padding={1} flexDirection="column">
<text fg="#0ff">{props.title}</text>
<box marginTop={1}>
{props.children}
</box>
</box>
)
}
// Usage
<Panel title="Settings">
<text>Panel content here</text>
</Panel>
```
### Spread Props
```tsx
import { splitProps } from "solid-js"
interface ButtonProps {
label: string
onClick: () => void
// ...rest goes to box
}
function Button(props: ButtonProps) {
const [local, rest] = splitProps(props, ["label", "onClick"])
return (
<box border onMouseDown={local.onClick} {...rest}>
<text>{local.label}</text>
</box>
)
}
```
## Animation
### With Timeline
```tsx
import { createSignal, onMount } from "solid-js"
import { useTimeline } from "@opentui/solid"
function AnimatedProgress() {
const [width, setWidth] = createSignal(0)
const timeline = useTimeline({
duration: 2000,
})
onMount(() => {
timeline.add(
{ value: 0 },
{
value: 50,
duration: 2000,
ease: "easeOutQuad",
onUpdate: (anim) => {
setWidth(Math.round(anim.targets[0].value))
},
}
)
})
return (
<box flexDirection="column" gap={1}>
<text>Progress: {width()}%</text>
<box width={50} height={1} backgroundColor="#333">
<box width={width()} height={1} backgroundColor="#0f0" />
</box>
</box>
)
}
```
### Interval-based
```tsx
import { createSignal, onCleanup } from "solid-js"
function Clock() {
const [time, setTime] = createSignal(new Date())
const interval = setInterval(() => {
setTime(new Date())
}, 1000)
onCleanup(() => clearInterval(interval))
return <text>{time().toLocaleTimeString()}</text>
}
```
@@ -1,614 +0,0 @@
# Testing OpenTUI Applications
How to test terminal user interfaces built with OpenTUI.
## Overview
OpenTUI provides:
- **Test Renderer**: Headless renderer for testing
- **Snapshot Testing**: Verify visual output
- **Interaction Testing**: Simulate user input
## When to Use
Use this reference when you need snapshot tests, interaction testing, or renderer-based regression checks.
## Test Setup
### Bun Test Runner
OpenTUI uses Bun's built-in test runner:
```typescript
import { test, expect, beforeEach, afterEach } from "bun:test"
```
### Test Renderer
Create a test renderer for headless testing:
```typescript
import { createTestRenderer } from "@opentui/core/testing"
const testSetup = await createTestRenderer({
width: 80, // Terminal width
height: 24, // Terminal height
})
```
## Core Testing
### Basic Test
```typescript
import { test, expect } from "bun:test"
import { createTestRenderer } from "@opentui/core/testing"
import { TextRenderable } from "@opentui/core"
test("renders text", async () => {
const testSetup = await createTestRenderer({
width: 40,
height: 10,
})
const text = new TextRenderable(testSetup.renderer, {
id: "greeting",
content: "Hello, World!",
})
testSetup.renderer.root.add(text)
await testSetup.renderOnce()
expect(testSetup.captureCharFrame()).toContain("Hello, World!")
})
```
### Snapshot Testing
```typescript
import { test, expect, afterEach } from "bun:test"
import { createTestRenderer } from "@opentui/core/testing"
import { BoxRenderable, TextRenderable } from "@opentui/core"
let testSetup: Awaited<ReturnType<typeof createTestRenderer>>
afterEach(() => {
if (testSetup) {
testSetup.renderer.destroy()
}
})
test("component matches snapshot", async () => {
testSetup = await createTestRenderer({
width: 40,
height: 10,
})
const box = new BoxRenderable(testSetup.renderer, {
id: "box",
border: true,
width: 20,
height: 5,
})
box.add(new TextRenderable(testSetup.renderer, {
content: "Content",
}))
testSetup.renderer.root.add(box)
await testSetup.renderOnce()
expect(testSetup.captureCharFrame()).toMatchSnapshot()
})
```
## React Testing
### Test Utilities
React provides a built-in `testRender` utility via the `@opentui/react/test-utils` subpath export:
```tsx
import { testRender } from "@opentui/react/test-utils"
```
This utility:
- Creates a headless test renderer
- Sets up the React Act environment automatically
- Handles proper unmounting on destroy
- Returns the standard test setup object
### Basic Component Test
```tsx
import { test, expect } from "bun:test"
import { testRender } from "@opentui/react/test-utils"
function Greeting({ name }: { name: string }) {
return <text>Hello, {name}!</text>
}
test("Greeting renders name", async () => {
const testSetup = await testRender(
<Greeting name="World" />,
{ width: 80, height: 24 }
)
await testSetup.renderOnce()
const frame = testSetup.captureCharFrame()
expect(frame).toContain("Hello, World!")
})
```
### Snapshot Testing
```tsx
import { test, expect, afterEach } from "bun:test"
import { testRender } from "@opentui/react/test-utils"
let testSetup: Awaited<ReturnType<typeof testRender>>
afterEach(() => {
if (testSetup) {
testSetup.renderer.destroy()
}
})
test("component matches snapshot", async () => {
testSetup = await testRender(
<box style={{ width: 20, height: 5, border: true }}>
<text>Content</text>
</box>,
{ width: 25, height: 8 }
)
await testSetup.renderOnce()
const frame = testSetup.captureCharFrame()
expect(frame).toMatchSnapshot()
})
```
### State Testing
```tsx
import { test, expect, afterEach } from "bun:test"
import { useState } from "react"
import { testRender } from "@opentui/react/test-utils"
let testSetup: Awaited<ReturnType<typeof testRender>>
afterEach(() => {
if (testSetup) {
testSetup.renderer.destroy()
}
})
function Counter() {
const [count, setCount] = useState(0)
return (
<box>
<text>Count: {count}</text>
</box>
)
}
test("Counter shows initial value", async () => {
testSetup = await testRender(
<Counter />,
{ width: 20, height: 5 }
)
await testSetup.renderOnce()
const frame = testSetup.captureCharFrame()
expect(frame).toContain("Count: 0")
})
```
### Test Setup/Teardown Pattern
For multiple tests, use beforeEach/afterEach to manage the renderer lifecycle:
```tsx
import { describe, test, expect, beforeEach, afterEach } from "bun:test"
import { testRender } from "@opentui/react/test-utils"
let testSetup: Awaited<ReturnType<typeof testRender>>
describe("MyComponent", () => {
beforeEach(async () => {
if (testSetup) {
testSetup.renderer.destroy()
}
})
afterEach(() => {
if (testSetup) {
testSetup.renderer.destroy()
}
})
test("renders correctly", async () => {
testSetup = await testRender(<MyComponent />, {
width: 40,
height: 10,
})
await testSetup.renderOnce()
const frame = testSetup.captureCharFrame()
expect(frame).toMatchSnapshot()
})
})
```
### Test Setup Return Object
The `testRender` function returns a test setup object with these properties:
| Property | Type | Description |
|----------|------|-------------|
| `renderer` | `Renderer` | The headless renderer instance |
| `renderOnce` | `() => Promise<void>` | Triggers a single render cycle |
| `captureCharFrame` | `() => string` | Captures current output as text |
| `resize` | `(width, height) => void` | Resize the virtual terminal |
## Solid Testing
### Test Utilities
Solid exports `testRender` directly from the main package:
```tsx
import { testRender } from "@opentui/solid"
```
Note: Unlike React, Solid's `testRender` takes a **function component** (not a JSX element).
### Basic Component Test
```tsx
import { test, expect } from "bun:test"
import { testRender } from "@opentui/solid"
function Greeting(props: { name: string }) {
return <text>Hello, {props.name}!</text>
}
test("Greeting renders name", async () => {
const testSetup = await testRender(
() => <Greeting name="World" />,
{ width: 80, height: 24 }
)
await testSetup.renderOnce()
const frame = testSetup.captureCharFrame()
expect(frame).toContain("Hello, World!")
})
```
### Snapshot Testing
```tsx
import { test, expect, afterEach } from "bun:test"
import { testRender } from "@opentui/solid"
let testSetup: Awaited<ReturnType<typeof testRender>>
afterEach(() => {
if (testSetup) {
testSetup.renderer.destroy()
}
})
test("component matches snapshot", async () => {
testSetup = await testRender(
() => (
<box style={{ width: 20, height: 5, border: true }}>
<text>Content</text>
</box>
),
{ width: 25, height: 8 }
)
await testSetup.renderOnce()
const frame = testSetup.captureCharFrame()
expect(frame).toMatchSnapshot()
})
```
## Snapshot Format
Snapshots capture the rendered terminal output as text:
```
┌──────────────────┐
│ Hello, World! │
│ │
└──────────────────┘
```
### Updating Snapshots
```bash
bun test --update-snapshots
```
## Interaction Testing
### Simulating Key Presses
```typescript
import { test, expect, afterEach } from "bun:test"
import { createTestRenderer } from "@opentui/core/testing"
let testSetup: Awaited<ReturnType<typeof createTestRenderer>>
afterEach(() => {
if (testSetup) {
testSetup.renderer.destroy()
}
})
test("responds to keyboard", async () => {
testSetup = await createTestRenderer({
width: 40,
height: 10,
})
// Create component that responds to keys
// ...
// Simulate keypress
testSetup.renderer.keyInput.emit("keypress", {
name: "enter",
sequence: "\r",
ctrl: false,
shift: false,
meta: false,
option: false,
eventType: "press",
repeated: false,
})
// Render after the keypress
await testSetup.renderOnce()
expect(testSetup.captureCharFrame()).toContain("Selected")
})
```
### Testing Focus
```typescript
import { test, expect, afterEach } from "bun:test"
import { createTestRenderer } from "@opentui/core/testing"
import { InputRenderable } from "@opentui/core"
let testSetup: Awaited<ReturnType<typeof createTestRenderer>>
afterEach(() => {
if (testSetup) {
testSetup.renderer.destroy()
}
})
test("input receives focus", async () => {
testSetup = await createTestRenderer({
width: 40,
height: 10,
})
const input = new InputRenderable(testSetup.renderer, {
id: "test-input",
placeholder: "Type here",
})
testSetup.renderer.root.add(input)
input.focus()
expect(input.isFocused()).toBe(true)
})
```
## Test Organization
### File Structure
```
src/
├── components/
│ ├── Button.tsx
│ └── Button.test.tsx
├── hooks/
│ ├── useCounter.ts
│ └── useCounter.test.ts
└── test-utils.tsx
```
### Running Tests
```bash
# Run all tests
bun test
# Run specific test file
bun test src/components/Button.test.tsx
# Run with filter
bun test --filter "Button"
# Watch mode
bun test --watch
```
## Patterns
### Testing Conditional Rendering (React)
```tsx
import { test, expect, afterEach } from "bun:test"
import { testRender } from "@opentui/react/test-utils"
let testSetup: Awaited<ReturnType<typeof testRender>>
afterEach(() => {
if (testSetup) {
testSetup.renderer.destroy()
}
})
test("shows loading state", async () => {
testSetup = await testRender(
<DataLoader loading={true} />,
{ width: 40, height: 10 }
)
await testSetup.renderOnce()
expect(testSetup.captureCharFrame()).toContain("Loading...")
})
test("shows data when loaded", async () => {
testSetup = await testRender(
<DataLoader loading={false} data={["Item 1", "Item 2"]} />,
{ width: 40, height: 10 }
)
await testSetup.renderOnce()
const frame = testSetup.captureCharFrame()
expect(frame).toContain("Item 1")
expect(frame).toContain("Item 2")
})
```
### Testing Lists
```tsx
test("renders all items", async () => {
const items = ["Apple", "Banana", "Cherry"]
testSetup = await testRender(
<ItemList items={items} />,
{ width: 40, height: 10 }
)
await testSetup.renderOnce()
const frame = testSetup.captureCharFrame()
items.forEach(item => {
expect(frame).toContain(item)
})
})
```
### Testing Layouts
```tsx
test("matches layout snapshot", async () => {
testSetup = await testRender(
<AppLayout />,
{ width: 120, height: 40 } // Larger viewport
)
await testSetup.renderOnce()
expect(testSetup.captureCharFrame()).toMatchSnapshot()
})
```
## Debugging Tests
### Print Frame Output
```tsx
import { testRender } from "@opentui/react/test-utils"
test("debug output", async () => {
const testSetup = await testRender(
<MyComponent />,
{ width: 40, height: 10 }
)
await testSetup.renderOnce()
const frame = testSetup.captureCharFrame()
// Print to see what's rendered
console.log(frame)
expect(frame).toContain("expected")
})
```
### Verbose Mode
```bash
bun test --verbose
```
## Gotchas
### Async Rendering
Always call `renderOnce()` after setting up your component to ensure rendering is complete:
```typescript
const testSetup = await testRender(<MyComponent />, { width: 40, height: 10 })
await testSetup.renderOnce() // Required before capturing frame
const frame = testSetup.captureCharFrame()
```
### Test Isolation and Cleanup
Always destroy the renderer after each test to avoid resource leaks:
```typescript
import { afterEach } from "bun:test"
let testSetup: Awaited<ReturnType<typeof testRender>>
afterEach(() => {
if (testSetup) {
testSetup.renderer.destroy()
}
})
test("test 1", async () => {
testSetup = await testRender(<Component1 />, { width: 40, height: 10 })
// ...
})
test("test 2", async () => {
testSetup = await testRender(<Component2 />, { width: 40, height: 10 })
// ...
})
```
### Snapshot Dimensions
Be consistent with test dimensions for stable snapshots:
```typescript
const testSetup = await createTestRenderer({
width: 80, // Standard width
height: 24, // Standard height
})
```
### Running from Package Directory
Run tests from the package directory:
```bash
cd packages/core
bun test
# Not from repo root for package-specific tests
```
## See Also
- [Core API](../core/api.md) - `createTestRenderer` and renderable classes
- [React Configuration](../react/configuration.md) - React test setup
- [Solid Configuration](../solid/configuration.md) - Solid test setup
- [Keyboard](../keyboard/REFERENCE.md) - Simulating key events in tests
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../../.cline/skills/publish-extension
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../../.cline/skills/tuistory
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# Changesets
Hello and welcome! This folder has been automatically generated by `@changesets/cli`, a build tool that works
with multi-package repos, or single-package repos to help you version and publish your code. You can
find the full documentation for it [in our repository](https://github.com/changesets/changesets)
We have a quick list of common questions to get you started engaging with this project in
[our documentation](https://github.com/changesets/changesets/blob/main/docs/common-questions.md)
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---
"claude-dev": patch
---
Remove the non-functional "Use compact prompt" toggle from LM Studio provider settings
@@ -1,5 +0,0 @@
---
"claude-dev": patch
---
Fix auto-approve checkboxes freezing after "New Task": clear the task-scoped settings overlay when the task view is cleared or switched, so stale task settings no longer shadow global settings
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@@ -0,0 +1,11 @@
{
"$schema": "https://unpkg.com/@changesets/config@3.0.5/schema.json",
"changelog": "@changesets/cli/changelog",
"commit": false,
"fixed": [],
"linked": [],
"access": "restricted",
"baseBranch": "main",
"updateInternalDependencies": "patch",
"ignore": []
}
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@@ -1,5 +0,0 @@
---
"claude-dev": patch
---
fix: restore workflow support regressions — expand `/workflow.md` slash commands (the legacy filename spelling the autocomplete inserts) and mid-message commands, honor workflow enable/disable toggles during expansion, refresh the slash menu's workflow list on webview launch, and bring back the Workflows management tab in the rules modal (now last in the tab list, with a deprecation notice pointing to Skills)
@@ -1,5 +0,0 @@
---
"claude-dev": patch
---
Fix hidden plan/act mode-switch and task-resumption prompts reappearing as user messages when a task is reopened from history
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---
"claude-dev": patch
---
fix: strip trailing slashes from the OpenAI Compatible base URL when fetching the model list, so `/models` is queried correctly and the model dropdown populates
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---
"claude-dev": patch
---
Added checkpoints warning when users start a multiroot task
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---
"claude-dev": patch
---
fix: center-align the sign-in verification code box shown after clicking "Sign in to Cline"
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---
"claude-dev": patch
---
fix: use correct base URL for Vertex AI global endpoint with Claude models
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---
"claude-dev": patch
---
Enable Auto Compact by default so long chats automatically compress conversation history instead of failing at the model context limit. It can be disabled in Settings → Features → "Auto Compact".
@@ -1,5 +0,0 @@
---
"claude-dev": patch
---
Bring back a copy button on turn-final response rows, under a new subtle "Completed" / "Plan" header
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---
"claude-dev": patch
---
Added markdown support to focus chain text, allowing the model to display more interesting focus chains
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@@ -1,5 +0,0 @@
---
"claude-dev": patch
---
Fix /compact UX: clear the chat input as soon as the command is submitted, wrap the compaction divider row at narrow sidebar widths, and update the context-window header even when compacting a small conversation grows the estimated context
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@@ -1,5 +0,0 @@
---
"claude-dev": patch
---
Disable feature tips by default; they can be enabled in Settings → Features → "Feature Tips"
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@@ -1,5 +0,0 @@
---
"claude-dev": patch
---
Show the edited file in a regular editor tab after the diff preview closes, restoring the legacy post-edit behavior
@@ -1,5 +0,0 @@
---
"claude-dev": patch
---
Hide the "View Changes" button on completion rows until there are actually changes to show, instead of rendering it faded and disabled. Turns that changed nothing, non-git workspaces, and repos without commits no longer show a dead button with a misleading tooltip.
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---
"claude-dev": patch
---
Show the user's message in chat immediately when sending to a task opened from history, instead of only a thinking indicator until the session resume finishes
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changesDir: .changes
unreleasedDir: unreleased
headerPath: header.tpl.md
changelogPath: CHANGELOG.md
versionExt: md
versionFormat: '## {{.Version}} - {{.Time.Format "2006-01-02"}}'
kindFormat: "### {{.Kind}}"
changeFormat: "* {{.Body}}"
kinds:
- label: Added
auto: minor
- label: Changed
auto: major
- label: Deprecated
auto: minor
- label: Removed
auto: major
- label: Fixed
auto: patch
- label: Security
auto: patch
newlines:
afterChangelogHeader: 1
beforeChangelogVersion: 1
endOfVersion: 1
envPrefix: CHANGIE_
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../../.clinerules/workflows/hotfix-release.md
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../../.clinerules/workflows/release.md
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#!/bin/bash
set -euo pipefail
# Only run in Claude Code remote environments
if [ "${CLAUDE_CODE_REMOTE:-}" != "true" ]; then
exit 0
fi
cd "$CLAUDE_PROJECT_DIR"
echo "=== Claude Code for Web Setup ==="
echo ""
# Install latest gh CLI tool
echo "Installing GitHub CLI..."
GH_VERSION=$(curl -s https://api.github.com/repos/cli/cli/releases/latest | grep '"tag_name"' | cut -d'"' -f4 | sed 's/^v//')
curl -sL "https://github.com/cli/cli/releases/download/v${GH_VERSION}/gh_${GH_VERSION}_linux_amd64.tar.gz" -o /tmp/gh.tar.gz
tar -xzf /tmp/gh.tar.gz -C /tmp
sudo mv "/tmp/gh_${GH_VERSION}_linux_amd64/bin/gh" /usr/local/bin/gh
rm -rf /tmp/gh.tar.gz /tmp/gh_${GH_VERSION}_linux_amd64
echo "Installed gh version: $(gh --version | head -1)"
echo ""
# Check if GITHUB_TOKEN is set and configure gh
if [ -n "${GITHUB_TOKEN:-}" ]; then
echo "GITHUB_TOKEN is configured - gh CLI is ready to use"
echo ""
echo "You can use gh commands directly, for example:"
echo " gh issue list --repo cline/cline --limit 5"
echo " gh pr list --repo cline/cline --state open"
echo " gh issue view 123 --repo cline/cline"
echo ""
else
echo "GITHUB_TOKEN is not set - gh CLI will have limited functionality"
echo ""
echo "To enable full GitHub API access:"
echo "1. Create a Fine-grained Personal Access Token at https://github.com/settings/tokens?type=beta"
echo "2. Add it as GITHUB_TOKEN in your Claude Code environment settings"
echo ""
fi
# Install project dependencies
echo "Installing dependencies..."
bun run install:all
# Generate gRPC/protobuf types (required for TypeScript)
echo "Generating proto types..."
bun run protos
echo ""
echo "Session setup complete!"
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{
"hooks": {
"SessionStart": [
{
"hooks": [
{
"type": "command",
"command": "$CLAUDE_PROJECT_DIR/.claude/hooks/claude-code-for-web-setup.sh"
}
]
}
]
}
}
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---
name: publish-cli
description: Use when preparing, tagging, and publishing an apps/cli npm release. Guides changelog drafting, apps/cli/package.json version bumps, cli-vX.Y.Z tags, local npm publishing, and the publish-cli GitHub workflow.
---
# CLI Release
Use this skill when the user asks to release the CLI, publish `cline`, bump the CLI version, draft release notes, create a `cli-vX.Y.Z` tag, or trigger the CLI publish workflow.
The CLI is npm-only. Do not add alternate distribution channels. Windows binaries are Authenticode-signed automatically by the publish workflow via Azure Trusted Signing (see the `.github/actions/sign-windows-cli` composite action and "Windows code signing" in `apps/cli/DISTRIBUTION.md`); if the signing secrets are not configured the workflow warns and publishes unsigned binaries. Local publishes (`bun release cli`) do not sign — prefer the GitHub Actions publish path for releases users run on Windows.
> Working directory: run every command below from the repository root. Paths and scripts (e.g. `apps/cli/package.json`, `sdk/packages/`, `bun release cli`, `bun run version`) are written relative to the repo root.
The skill should guide the user through one release preparation flow, then offer the publish path options. The two normal publish paths are GitHub Actions and local publishing from an authenticated machine.
## Release contract
- SDK prerequisite: the CLI depends on the SDK via `workspace:*` (`@cline/core`, `@cline/shared`, and friends). If the SDK changed since its last release, release the SDK first and wait for it to finish publishing before releasing the CLI. See "Step 0: Release the SDK first if it changed" below.
- Version source: `apps/cli/package.json`.
- Main release tag: `cli-vX.Y.Z`, where `X.Y.Z` matches `apps/cli/package.json`.
- Nightly release version: `X.Y.Z-nightly.TIMESTAMP`.
- Release prep includes approved release notes, a version bump, and an `apps/cli/CHANGELOG.md` update.
- Publish paths:
- GitHub workflow: `.github/workflows/cli-publish.yml`.
- Local publish helper: `bun release cli`.
- npm dist-tags and git tags are separate. `--tag latest` and `--tag nightly` are npm registry channels. `cli-vX.Y.Z` is a git tag for source history and GitHub releases.
- The GitHub main release workflow runs from `main`, requires an existing `cli-vX.Y.Z` tag, checks out that tag, and publishes from it.
- The GitHub nightly workflow publishes to npm with the `nightly` dist-tag and does not create a tag.
- The local release helper requires a clean checkout and `cli-vX.Y.Z` to point at `HEAD` locally and on `origin` before publishing.
- Local GitHub release creation requires `gh` to be authenticated with release permissions for the repo.
- Always ask before pushing commits or tags.
- Do not amend commits unless explicitly requested.
## Step 0: Release the SDK first if it changed
Do this before anything else in the Workflow below.
The CLI builds and ships against the SDK source in the monorepo (`workspace:*` for `@cline/core`, `@cline/shared`, and the rest), so a CLI release always contains the latest SDK code whether or not the SDK was released. The build and tests use that source too, not anything from npm. Releasing the SDK alongside the CLI is still worth doing for two reasons:
- Hub freshness. The hub daemon lives in `@cline/core` and stamps a `buildId` that defaults to the `@cline/core` package version (`resolveHubBuildId` in `sdk/packages/core/src/hub/discovery/index.ts`). A running hub is only retired and respawned when that `buildId` changes (`isCompatibleHubRecord` / `retireIncompatibleHub` in `sdk/packages/core/src/hub/daemon/index.ts`). So if the SDK code changed but the version did not, a user who upgrades the CLI keeps talking to their already-running hub, which is still executing the old SDK code. Bumping the SDK version makes the new CLI's `buildId` differ, so the stale hub is detected as incompatible and respawned with the fresh code.
- Release hygiene. We want regular SDK releases; cutting one whenever we cut a CLI release keeps the published SDK in step with what the CLI ships.
So when the SDK has changed, release it first (which bumps the `@cline/core` version), then cut the CLI release on top of that bump. Leave the CLI's SDK dependency as `workspace:*` — the fix is to release the SDK, not to pin the CLI.
1. Check for unreleased SDK changes.
```sh
git fetch origin --tags
git tag --list 'sdk/sdk/v*' 'sdk-v*' --sort=-v:refname | head -1
git log <last-sdk-tag>..origin/main --oneline --no-merges -- sdk/packages
```
`sdk/<pkg>/v*` tags are created by the `sdk-publish.yml` workflow; `sdk-v*` tags are created by the local `bun release sdk` helper. Use whichever is newest as the baseline.
If `git log` prints no commits, the SDK is already up to date. Skip the rest of Step 0 and continue with the Workflow below.
If it prints commits, sanity-check the diff (ignore entries that are only the previous version-bump commit's lockfile or generated files), then release the SDK.
2. Decide the SDK version bump.
All SDK packages share one version, read from `sdk/packages/llms/package.json`. Ask whether this is patch, minor, major, or an explicit version. Patch is the default. Do not guess if the user has not made it clear.
3. Draft the SDK release notes and update the changelog.
Draft user-facing notes from the SDK commits found in step 1, translating commit messages into user-facing language (same approach as the CLI release notes below). Prepend a new `## <version>` section with those notes to the top of `sdk/CHANGELOG.md`, using the header format `## <version>` with no date — the same flat, newest-on-top format as `apps/cli/CHANGELOG.md`. This is the SDK changelog (all SDK packages share one version) and it is maintained by hand; the `sdk-publish.yml` workflow does not read it.
4. Bump versions and regenerate.
```sh
bun run version <version>
```
This bumps every SDK `package.json` to the new version, regenerates the lockfile and the generated model catalog, formats, and builds. Review the result.
5. Commit and push the bump to `main`.
The `sdk-publish.yml` workflow publishes the version that is committed on `main` and tags that commit, so the bump must land on `main` before the workflow runs.
```sh
git add -A
git commit -m "chore(sdk): release v<version>"
```
Ask before pushing:
```sh
git push origin HEAD
```
6. Trigger the SDK publish workflow on the `latest` channel.
```sh
gh workflow run sdk-publish.yml -f channel=latest -f confirm_publish=publish
gh run list --workflow=sdk-publish.yml --limit=1 --json databaseId,url,status,createdAt --jq '.[0]'
```
The workflow runs the SDK tests, publishes `@cline/shared`, `@cline/llms`, `@cline/agents`, `@cline/core`, and `@cline/sdk` to npm with the `latest` dist-tag in dependency order, and pushes `sdk/<pkg>/v<version>` git tags.
7. Wait for the SDK workflow to succeed before starting the CLI release.
```sh
gh run watch <run-id> --exit-status
```
Do not start the CLI release until this run has finished successfully. The CLI does not install the SDK from npm, but cutting the CLI release on top of a clean, completed SDK release keeps the two in step: the CLI release commit then sits on top of the `@cline/core` version bump, so the shipped CLI carries the new version that forces a running hub to respawn with the new code, and you are not building a CLI release on top of an SDK release that failed midway.
After the SDK release succeeds, pull `main` so the CLI release is prepared on top of the SDK version bump:
```sh
git checkout main && git pull --ff-only
```
Then continue with the Workflow below.
For a local SDK publish from an authenticated machine instead of the workflow, `bun release sdk <version>` exists, but prefer the `sdk-publish.yml` workflow for normal releases so the CLI release can gate on a single GitHub Actions run.
## Workflow
Complete Step 0 first. Only proceed once the SDK is released (or you confirmed no SDK release was needed).
1. Gather context.
```sh
git status --short --branch
git fetch origin --tags
git tag --list 'cli-v*' --sort=-v:refname | head -10
node -p "require('./apps/cli/package.json').version"
```
Find the latest CLI tag. If there is no `cli-v*` tag, use the first relevant CLI release commit as the baseline and say that the baseline is inferred.
2. Collect release commits.
```sh
git log <last-cli-tag>..HEAD --oneline --no-merges -- apps/cli sdk/packages sdk/scripts .github/workflows/cli-publish.yml
```
The `sdk/packages` commits matter here even though the SDK was released separately in Step 0: the CLI bundles the SDK, so SDK changes ship in this CLI release too. Read those commits and fold anything user-relevant to the CLI into the release notes (provider/model updates, behavior changes, fixes the CLI inherits). Skip SDK changes that are purely internal or have no CLI-visible effect.
3. Draft user-facing release notes.
Include user-facing features, fixes, behavior changes, compatibility changes, and notable install or release changes. Exclude pure refactors, tests, style, chores, and internal file moves unless they matter to users.
Write a flat bullet list. Translate commit messages into user-facing language. If a commit is unclear, read the full commit before summarizing it.
Present the draft and wait for approval before editing files.
4. Decide the version bump.
Ask whether this should be patch, minor, major, or an explicit version. Do not guess if the user has not made it clear.
5. Update release files.
Update `apps/cli/package.json` to the approved version.
Prepend a section to `apps/cli/CHANGELOG.md` for the approved version using the approved release notes. Use the header format `## X.Y.Z` with no date. The publish workflow extracts the top section of the changelog by matching `^## [0-9]` and pastes it verbatim into the GitHub release body and the Slack release announcement, so the section content is the release notes that get shipped.
6. Verify before committing.
Run focused checks first:
```sh
bun -F @cline/cli typecheck
bun -F @cline/cli test:unit
```
For higher confidence, run:
```sh
bun run types
bun --cwd apps/cli run build:platforms:single
```
If the user wants full release confidence before tagging, run:
```sh
bun run test
bun --cwd apps/cli run build:platforms
```
Known local-only test failure: `src/commands/distribution-package.test.ts > rejects direct source package packing by default` will fail on machines that have `ignore-scripts=true` in `~/.npmrc` (set by the npm supply-chain hardening guide). Bun reads npm's `ignore-scripts` from `~/.npmrc`, so `bun pm pack --dry-run` skips the source-publish `prepack` guard and exits 0, which the test reads as a failure. CI does not set `ignore-scripts`, so the test passes there. Confirm by running `bun pm pack --dry-run` directly: with `~/.npmrc` in place it exits 0 with no guard output; with `~/.npmrc` moved aside it exits 1 and prints the guard message. This is not a release blocker by itself, but it does mean the local-publish path (`bun release cli`) will also bypass the source-publish guard on this machine; prefer the GitHub Actions publish path on machines with `ignore-scripts=true` set globally, or temporarily unset it (`npm config delete ignore-scripts` or `mv ~/.npmrc ~/.npmrc.bak`) for the duration of a local publish.
7. Commit release changes.
Only after the user approves the notes and version:
```sh
git add apps/cli/package.json apps/cli/CHANGELOG.md
git commit -m "chore(cli): release vX.Y.Z"
```
Ask before pushing the release commit:
```sh
git push origin HEAD
```
For the GitHub main release path, ask before creating and pushing the release tag:
```sh
git tag -a cli-vX.Y.Z -m "CLI vX.Y.Z"
git push origin refs/tags/cli-vX.Y.Z
```
8. Publish.
Ask the user which path to use:
- GitHub main release. Use this after the release commit is on `main` and the matching `cli-vX.Y.Z` tag has been pushed. The workflow publishes to npm from that tag, creates the GitHub release, and posts to Slack.
- Local release. Use this when the user wants to publish from this machine. The local machine must be authenticated to npm and GitHub.
- GitHub nightly release.
- Stop after the version commit.
For GitHub main release:
```sh
gh workflow run cli-publish.yml -f publish_target=main -f git_tag=cli-vX.Y.Z -f confirm_publish=publish
gh run list --workflow=cli-publish.yml --limit=1 --json url,status,conclusion,createdAt --jq '.[0]'
```
For GitHub nightly release:
```sh
gh workflow run cli-publish.yml -f publish_target=nightly
```
For forced GitHub nightly release:
```sh
gh workflow run cli-publish.yml -f publish_target=nightly -f force_nightly_publish=true
```
For local publish:
```sh
gh auth status
npm whoami
git tag -a cli-vX.Y.Z -m "CLI vX.Y.Z"
git push origin refs/tags/cli-vX.Y.Z
bun release cli
```
After a successful local publish, ask before running:
```sh
gh release create cli-vX.Y.Z --verify-tag --title "CLI vX.Y.Z" --notes "Paste the approved release notes here."
```
If publishing with another npm dist-tag:
```sh
bun release cli --tag next
```
9. Final response.
Report:
- version
- tag
- changelog file updated
- commit hash
- whether anything was pushed
- publish path selected
- workflow URL or local publish result
- tests and builds run
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@@ -1,177 +0,0 @@
---
name: publish-desktop
description: Use when preparing, tagging, and publishing a Cline desktop app (apps/examples/desktop-app) release — stable (desktop-vX.Y.Z from main) or beta (desktop-vX.Y.Z-beta.N from desktop-experimental, shipped as the side-by-side "Cline Beta" app). Guides changelog drafting, version bumps in package.json + tauri.conf.json, tagging, and the desktop-publish GitHub workflow that builds, signs, notarizes, and updates the per-channel auto-update feed.
---
# Desktop App Release
Use this skill when the user asks to release the desktop app, publish the Cline desktop app, cut a desktop beta, bump the desktop version, create a `desktop-vX.Y.Z` (or `desktop-vX.Y.Z-beta.N`) tag, or trigger the desktop publish workflow.
> Working directory: run every command below from the repository root.
Desktop releases ship two platforms, built entirely in GitHub Actions — there is no local publish path. macOS: a single signed + notarized universal DMG that runs natively on both Apple Silicon and Intel. Windows: an Authenticode-signed NSIS installer (`<Product>_<version>_x64-setup.exe`), signed via Azure Trusted Signing in the `build-windows` job (jsign through Tauri's `signCommand`, see `apps/examples/desktop-app/scripts/tauri-sign-windows.ps1`; requires the repo-level `AZURE_*` secrets including `AZURE_TRUSTED_SIGNING_CERTIFICATE_PROFILE_DESKTOP`, plus a `PublishDesktop`-environment federated credential on the `cline-cli-signing` Entra app). Installed apps discover new releases automatically through the Tauri updater, so publishing a release is what ships the update to every existing user **on that channel**.
## Release contract
- Two channels, one workflow (`channel` input on `desktop-publish.yml`):
- **stable** — tag `desktop-vX.Y.Z` (no suffix; the workflow rejects prerelease suffixes on this channel), cut from `main`, feeds the rolling `desktop-latest` release, ships as "Cline".
- **beta** — tag `desktop-vX.Y.Z-beta.N`, cut from `desktop-experimental`, feeds the rolling `desktop-beta` release, ships as "Cline Beta" (separate bundle identifier `bot.cline.app.beta`; installs side by side with stable). Built with the extra `src-tauri/tauri.beta.conf.json` overlay. Process background: `apps/examples/desktop-app/EXPERIMENTAL.md`.
- Version sources (must match each other and the tag): `apps/examples/desktop-app/package.json` and `apps/examples/desktop-app/src-tauri/tauri.conf.json`. (`src-tauri/Cargo.toml` has its own version but `tauri.conf.json` overrides it; no need to touch it.)
- Beta versions are prereleases of the **next** stable: stable `0.0.13` → betas `0.0.14-beta.1`, `-beta.2`, … Once a stable ≥ the beta base ships, the next beta bumps its base (`0.0.15-beta.1`).
- Release prep includes approved release notes, the version bumps, and an `apps/examples/desktop-app/CHANGELOG.md` update — committed on `main` for stable, on `desktop-experimental` for beta.
- Publish path: `.github/workflows/desktop-publish.yml` (workflow_dispatch, requires the tag to exist, point at the checked-out commit, and be reachable from the channel's branch — `origin/main` for stable, `origin/desktop-experimental` for beta).
- **Both channels dispatch from `main`.** This is a security invariant, not a convenience: the run executes `main`'s workflow copy and only the checkout points at the tag, so the signing-secret gates (the `github.ref == main` check and the PublishDesktop environment's main-only deployment-branch policy) hold for beta too. Never add `desktop-experimental` to the PublishDesktop deployment-branch policy.
- The workflow creates the tag's GitHub release (universal DMG + macOS updater artifact + Windows NSIS installer with its updater signature + `latest.json`; marked prerelease for beta) and refreshes the channel's rolling feed release, which is the static auto-update feed every installed app on that channel polls. Never delete the `desktop-latest` or `desktop-beta` release or tag.
- The changelog's `## <version>` section (exact-match, not "topmost") is extracted verbatim into the GitHub release body, the Slack announcement, and the updater manifest notes.
- Always ask before pushing commits or tags.
## Workflow
0. Ask which channel this release is for — **stable or beta** — if the user has not said. Everything below branches on it; never guess.
1. Gather context.
```sh
git status --short --branch
git fetch origin --tags
git tag --list 'desktop-v*' --sort=-v:refname | head -10
node -p "require('./apps/examples/desktop-app/package.json').version"
node -p "require('./apps/examples/desktop-app/src-tauri/tauri.conf.json').version"
```
If there is no `desktop-v*` tag yet, this is the first release; use the desktop app's first commit as the baseline and say the baseline is inferred.
For a **beta** release, work on `desktop-experimental` (check out `origin/desktop-experimental`; merge `origin/main` into it first if it is behind — see EXPERIMENTAL.md for the conflict policy) and read the version files from that branch. The last-tag baseline is the newest `desktop-v*` tag of either channel that is an ancestor of the branch.
2. Collect release commits.
```sh
# stable (on main):
git log <last-desktop-tag>..HEAD --oneline --no-merges -- apps/examples/desktop-app sdk/packages .github/workflows/desktop-publish.yml
# beta (on desktop-experimental):
git log <last-desktop-tag>..origin/desktop-experimental --oneline --no-merges -- apps/examples/desktop-app sdk/packages .github/workflows/desktop-publish.yml
```
The sidecar bundles `@cline/core` and friends from the monorepo, so SDK changes ship inside the desktop app too. Fold user-visible SDK changes (providers, models, behavior fixes) into the notes; skip purely internal ones.
3. Draft user-facing release notes.
Flat bullet list, user-facing language. Present the draft and wait for approval before editing files.
4. Decide the version bump.
Stable: ask whether this is patch, minor, major, or an explicit version. Do not guess if the user has not made it clear.
Beta: apply the versioning rule — base = next stable version, increment `N` (`0.0.14-beta.1``0.0.14-beta.2`; after stable `0.0.14` ships, next is `0.0.15-beta.1`). Confirm the computed version with the user.
5. Update release files (on `main` for stable, on `desktop-experimental` for beta).
- `apps/examples/desktop-app/package.json` → new version
- `apps/examples/desktop-app/src-tauri/tauri.conf.json` → same version
- Prepend `## X.Y.Z` (no date; `## X.Y.Z-beta.N` for beta) to `apps/examples/desktop-app/CHANGELOG.md` with the approved notes.
6. Verify before committing.
```sh
bun -F @cline/code typecheck
bun test apps/examples/desktop-app/scripts/generate-update-manifest.test.ts
```
The full desktop bundle can only be built on macOS; the workflow's build job is the real verification. For extra local confidence on a Mac checkout, `bun run package:desktop:mac --allow-unsigned-mac` from the app directory.
7. Commit release changes.
```sh
git add apps/examples/desktop-app/package.json apps/examples/desktop-app/src-tauri/tauri.conf.json apps/examples/desktop-app/CHANGELOG.md
git commit -m "chore(desktop): release vX.Y.Z"
```
Ask before pushing the release commit, then before creating and pushing the tag:
```sh
git push origin HEAD
git tag -a desktop-vX.Y.Z -m "Desktop vX.Y.Z" # beta: desktop-vX.Y.Z-beta.N / "Desktop vX.Y.Z-beta.N"
git push origin refs/tags/desktop-vX.Y.Z
```
8. Publish.
The release commit must be on the channel's branch (`main` for stable, `desktop-experimental` for beta) and the tag pushed first. Dispatch from `main` for **both** channels (see the release contract for why).
```sh
# stable:
gh workflow run desktop-publish.yml --ref main -f git_tag=desktop-vX.Y.Z -f channel=stable -f confirm_publish=publish
# beta:
gh workflow run desktop-publish.yml --ref main -f git_tag=desktop-vX.Y.Z-beta.N -f channel=beta -f confirm_publish=publish
gh run list --workflow=desktop-publish.yml --limit=1 --json url,status,conclusion,createdAt --jq '.[0]'
```
**The run pauses for approval.** `validate` runs immediately, then the `build`
job waits on the `PublishDesktop` environment until a required reviewer approves
it — the run sits in `waiting`, which is expected, not a hang. Approve it in the
run's web UI ("Review deployments"), or:
```sh
gh api repos/cline/cline/actions/runs/<run-id>/pending_deployments \
--method POST -f state=approved -f comment="desktop vX.Y.Z" \
-F 'environment_ids[]=19152605990' # PublishDesktop
```
Nothing after `validate` runs — and no signing key is readable — until then.
The workflow builds one universal macOS bundle (`tauri build --target universal-apple-darwin` lipos the aarch64 + x86_64 Rust binaries; the Bun sidecar is lipo'd by `build-sidecar-bin.ts`; beta adds the `tauri.beta.conf.json` overlay), verifies every Mach-O in the bundle carries both slices and that the compiled binary embeds exactly its own channel's feed URL, signs with the Developer ID certificate, notarizes with the App Store Connect API key, and signs the updater artifact with the Tauri updater key. In parallel, `build-windows` builds the x64 NSIS installer on a Windows runner, Authenticode-signs every binary via Azure Trusted Signing (Tauri `signCommand` -> `scripts/tauri-sign-windows.ps1`), runs the same feed-endpoint and telemetry guardrails, and verifies the shipped installer with `Get-AuthenticodeSignature`. The release job then creates the GitHub release (prerelease for beta), refreshes the channel's feed (`desktop-latest/latest.json` or `desktop-beta/latest.json`), and posts to Slack. Notarization typically adds 210 minutes.
If the workflow fails on missing credentials, see "Publish secrets (one-time setup)" below.
9. Verify the update feed after the run succeeds.
```sh
curl -sL https://github.com/cline/cline/releases/download/desktop-latest/latest.json | head -30 # stable
curl -sL https://github.com/cline/cline/releases/download/desktop-beta/latest.json | head -30 # beta
```
The `version` field must be the new release; both `darwin-aarch64` and `darwin-x86_64` entries must point at the same new universal `.app.tar.gz` asset under the release tag (each slice of the fat binary requests its own arch key at runtime, so both keys serve the one artifact), and the `windows-x86_64` entry must point at the new `*_x64-setup.exe` asset. Installed apps on that channel — including older per-arch installs — pick the update up on next launch or within 2 hours.
After a **beta** publish, also confirm the stable feed was not touched: `desktop-latest/latest.json` must still serve the previous stable version. (The workflow guards this fail-closed, but it is cheap to verify and catastrophic to miss — the updater comparator is a plain semver "newer than", so a beta manifest on `desktop-latest` would auto-update every stable install onto the beta.)
10. Final response.
Report: channel, version, tag, changelog updated, commit hash, what was pushed, workflow URL, and the feed verification result.
## Publish secrets (one-time setup)
These live on the **`PublishDesktop` environment**, not at repository level, so
only the `build` job can read them and only after an approval. Set them under
Settings → Environments → PublishDesktop → Environment secrets. The environment
also restricts deployments to `main` and requires a reviewer.
Adding one of these as a *repository* secret is the common mistake. The build
would still succeed — an environment-gated job resolves repository secrets too,
with environment values simply taking precedence — so the credential would sit
repo-wide while everything looked fine. `validate` therefore fails the run if any
of them resolves in a job with no environment. If you hit that, delete the
repository-level copy rather than duplicating it.
If a secret is missing everywhere, the preflight in `build` fails the run naming
the missing entries. The Apple values come from the same Apple Developer account
used for manual signing (see the app README's "macOS signing & notarization"
section for how to obtain them):
| Secret | Value |
| --- | --- |
| `APPLE_CERTIFICATE` | Base64 of the **Developer ID Application** identity exported from Keychain Access as `.p12` (must include the private key): `base64 -i certificate.p12 \| pbcopy` |
| `APPLE_CERTIFICATE_PASSWORD` | The password chosen when exporting the `.p12` |
| `APPLE_SIGNING_IDENTITY` | `Developer ID Application: <Team Name> (<TEAMID>)` — from `security find-identity -v -p codesigning` |
| `APPLE_API_KEY` | App Store Connect API **Key ID** (notarization) |
| `APPLE_API_KEY_CONTENT` | Contents of the `AuthKey_<KEYID>.p8` file |
| `APPLE_API_ISSUER` | App Store Connect **Issuer ID** (UUID from Users and Access → Integrations) |
| `TAURI_SIGNING_PRIVATE_KEY` | Contents of the Tauri updater private key (`tauri signer generate`). If this key is ever lost, shipped apps can no longer verify updates — guard it. |
| `TAURI_SIGNING_PRIVATE_KEY_PASSWORD` | Password for that key |
The Slack + telemetry secrets (`SLACK_RELEASE_BOT_TOKEN`, `TELEMETRY_SERVICE_API_KEY`,
`ERROR_SERVICE_API_KEY`, OTEL settings) are shared with the CLI, SDK, and extension
publish workflows and already configured. **Do not move these into
`PublishDesktop`** — scoping them to this environment empties them in every other
publish workflow, silently, with no error beyond missing telemetry and a failed
Slack post.
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---
name: publish-extension
description: Use when releasing the Cline VS Code extension — stable (currently the combined legacy+next A/B VSIX via ext-vscode-ab-package), nightly (ext-vscode-publish-nightly), or a legacy-branch hotfix (ext-vscode-publish-legacy). Guides version selection, changelog, PostHog rollout-flag coordination, workflow dispatch, environment approvals, tagging, and post-publish verification, plus the eventual cutover to publishing the SDK extension standalone.
---
# VS Code Extension Release
Use this skill when the user asks to release, publish, or ship the VS Code extension — stable, nightly, or a legacy hotfix — or to dial the rollout, or to cut over to the SDK extension permanently.
> Working directory: repo root. All workflows are dispatched from `main` (GitHub requires the workflow file on the default branch; each workflow checks out the refs it actually builds).
## The current era: combined A/B rollout
We are mid-migration from the legacy (npm, pre-SDK) extension to the next (SDK-based, bun) extension. Until the cutover is complete, **the stable and nightly listings ship a combined VSIX**: a small loader + two complete extensions (`next/` built from `main`, `legacy/` built from the `legacy-extension` branch). The loader picks one per window based on the PostHog flag `ext-sdk-bundle-rollout`. Deep-dive docs: `apps/vscode-rollout/README.md` (authoritative) and PR #12253 (design + runbook comments).
Endgame (see "Cutover" at the bottom): once the next bundle is trusted at 100%, stable goes back to a plain build of `main` via `ext-vscode-publish-stable.yml` and all the legacy/rollout machinery is retired.
### The listings and the workflows
| Channel | Marketplace ID | Workflow | Trigger | Version |
|---|---|---|---|---|
| Stable (combined) | `saoudrizwan.claude-dev` | `ext-vscode-ab-package.yml` | dispatch only; `publish` input defaults false | manual input (semver, e.g. `4.1.0`) |
| Nightly (combined) | `saoudrizwan.cline-nightly` | `ext-vscode-publish-nightly.yml` | cron 12:00 UTC + dispatch | auto `<major>.<minor>.<unix-ts>` from main's `apps/vscode/package.json` |
| Legacy hotfix (standalone) | `saoudrizwan.claude-dev` | `ext-vscode-publish-legacy.yml` | dispatch | from `apps/vscode/package.json` on `legacy-extension` |
| Stable standalone (post-cutover) | `saoudrizwan.claude-dev` | `ext-vscode-publish-stable.yml` | dispatch | from `apps/vscode/package.json` on `main` |
All three publish paths gate on tests before publishing: nightly and ab-package run the reusable bun suite (`ext-vscode-test.yml`, tests `main`) — ab-package additionally runs the legacy branch's npm suite — and the legacy workflow inlines the npm suite. Environment gates: stable paths use `publish``Publish` environment (required reviewers approve in the Actions UI); nightly uses `PublishNightly` (branch policy only, no reviewers — a reviewer requirement would block the cron).
## Golden rules (read before any release)
1. **One listing, one version line.** `claude-dev` is published from multiple workflows/branches. Every stable publish must use a version **strictly above the highest version ever published to the listing from any branch** — marketplace versions are monotonic and cannot be unpublished (supersede, never delete). Check what's live first:
```bash
curl -s -X POST "https://marketplace.visualstudio.com/_apis/public/gallery/extensionquery" \
-H "Content-Type: application/json" -H "Accept: application/json;api-version=3.0-preview.1" \
-d '{"filters":[{"criteria":[{"filterType":7,"value":"saoudrizwan.claude-dev"}]}],"flags":16}' \
| python3 -c "import json,sys; v=json.load(sys.stdin)['results'][0]['extensions'][0]['versions'][0]; print(v['version'], v['lastUpdated'])"
```
`ext-vscode-ab-package` also enforces this automatically for `publish=true` runs: a preflight job validates the version format (plain `X.Y.Z`) and hard-fails unless it exceeds the live Marketplace version, and the publish job re-checks right before publishing (the approval wait can last days — a legacy hotfix landing in between is caught). Still run the query yourself when *choosing* the version.
2. **Check the flag BEFORE any stable combined publish.** `ext-sdk-bundle-rollout` is **shared between nightly and stable** — the loader sends only a machine id to `/decide`, no channel property, so there is no per-channel targeting. If the flag is high (nightly dogfooding) and you publish stable, stable users get the next bundle at that same percentage. Verify the effective percentage empirically (no PostHog admin needed — sample `/decide` with random ids using the key inlined in any shipped loader):
```bash
node -e '
const KEY = process.argv[1]; // phc_... extracted from a shipped VSIX loader
(async () => {
let t = 0, n = 200;
for (let i = 0; i < n; i += 20) {
const rs = await Promise.all(Array.from({length: 20}, (_, j) =>
fetch("https://data.cline.bot/decide?v=3", { method: "POST",
headers: {"Content-Type": "application/json"},
body: JSON.stringify({api_key: KEY, distinct_id: `probe-${i+j}-${Math.random()}`})
}).then(r => r.json())));
for (const r of rs) if ((r.featureFlags||{})["ext-sdk-bundle-rollout"] === true) t++;
}
console.log(`~${(100*t/n).toFixed(1)}% (${t}/${n})`);
})()' "$KEY"
```
Flag changes are made in the PostHog UI (Cline project). **0% is the kill switch** — the flag is two-way; there is no separate killswitch flag. Dialing down demotes machines back to legacy on their next window reload.
3. **Ask before pushing** commits or tags. Environment approvals are the maintainer's to give.
4. **Changelog lives at the repo ROOT** (`CHANGELOG.md`), on the branch being released — not `apps/vscode/CHANGELOG.md` (doesn't exist). The legacy and stable workflows hard-fail unless the first heading is exactly `## [<version>]`.
5. **Stuck concurrency groups**: `ext-vscode-ab-package` groups on the version with `cancel-in-progress: false`. Only `publish=true` runs wait on environment approval (build-only rehearsals run ungated to completion), but a publish run left `waiting` still blocks every later dispatch of the same version — cancel it (`gh run cancel <id>`) before re-dispatching.
## Stable release (combined A/B VSIX) — the current stable path
### Pre-flight
```bash
# 1. What's live, and what version comes next (must exceed it — rule 1)
# 2. Flag percentage (rule 2) — decide where it should be for this release
# 3. Legacy tip = what the non-promoted cohort will run; confirm it's the shipped hotfix line
git fetch origin main legacy-extension
git log --oneline -3 origin/legacy-extension
# 4. Cheap local rehearsal of the most likely build failure: the union manifest
# hard-fails if views/viewsContainers/configuration diverged between branches.
git show origin/main:apps/vscode/package.json > /tmp/next.json
git show origin/legacy-extension:apps/vscode/package.json > /tmp/legacy.json
node apps/vscode-rollout/scripts/gen-manifest.mjs --next /tmp/next.json --legacy /tmp/legacy.json --version <VERSION>
# Expected warnings only: engines union (takes newer) + walkthrough copy drift.
```
Release prep on `main` (PR, not direct push):
- Add `## [<VERSION>]` entry at the top of root `CHANGELOG.md`.
- Bump `apps/vscode/package.json` to `<VERSION>` so the repo reflects the published line. Side effect: nightly versions become `<major>.<minor>.<unix-ts>` of the new base — harmless (separate listing, still monotonic).
### Dispatch
```bash
gh workflow run ext-vscode-ab-package.yml --ref main \
-f version=<VERSION> -f next-ref=main -f publish=true
# (the legacy bundle always builds from the protected legacy-extension branch;
# it is deliberately not an input)
# publish=false builds an installable .vsix artifact without publishing and
# needs NO environment approval — the ungated build job uploads the artifact
# and the run completes.
gh run list --workflow=ext-vscode-ab-package.yml --limit 1
```
Preflight (version format + monotonicity) and both test suites run first, then the ungated `build` job packages and uploads the VSIX; for `publish=true` the `publish` job then **waits for `Publish` environment approval** (Actions → run → "Review deployments"). Both bundles build the exact revisions their test gates ran against (branch names are resolved once — commits landing on either branch mid-run or during the approval wait are not picked up); `publish=true` is additionally refused for any `next-ref` other than `main` (the bun gate only tests main — non-main next-refs are for build-only artifact rehearsals). Check what a run is waiting on:
```bash
gh api repos/cline/cline/actions/runs/<run-id>/pending_deployments
```
### Post-publish
1. Verify the marketplace serves the new version (query from rule 1) — expect minutes-to-an-hour of validation lag after "Published" appears in the logs. Also verify Open VSX:
```bash
curl -s "https://open-vsx.org/api/saoudrizwan/claude-dev" | python3 -c "import json,sys; d=json.load(sys.stdin); print(d['version'], d['timestamp'])"
```
2. Tag, GitHub Release (with the .vsix attached), and the Slack release-bot post happen **automatically** after a real publish (all `continue-on-error` — the publish itself already succeeded, so bookkeeping failures leave the run green). Verify they landed; the known failure is the tag push when the built commit touches `.github/workflows/**` (default token cannot create such refs — no grantable permission fixes it). Manual fallback:
```bash
git tag v<VERSION> <main-sha-built> # ask before pushing
git push origin v<VERSION>
gh release create v<VERSION> --title "v<VERSION>" --notes "<changelog section>" <path-to.vsix>
```
A real publish also **hard-fails early** if root `CHANGELOG.md` on the built main revision doesn't start with `## [<VERSION>]` — the release prep PR must be merged before dispatching.
3. Thorough artifact check (`gh run download <run-id>`): union `package.json` is `saoudrizwan.claude-dev@<VERSION>`, `next/package.json` and `legacy/package.json` carry the SAME version, `grep -c 'phc_' extension/extension.js` ≥ 1 (loader key inlined), no leftover `process.env.TELEMETRY_SERVICE_API_KEY` / `process.env.CLINE_ROLLOUT_VARIANT` literals in either bundle's dist (leftovers = a build ran without its env and telemetry is silently dead).
4. Monitor: `extension.rollout.bundle_activated` in `otel.otel_logs` filtered to `extension_version = '<VERSION>'` (stable cohort is cleanly separable — nightly versions are timestamps). Watch the next/legacy ratio and the crash-fallback rate; Metabase dashboards 17 (rollout + task error rate) and 19 (error deep dive). `extension.rollout.loader_decision` (incl. `double_failure`) is PostHog-only, not in ClickHouse.
5. Dial the flag per the rollout plan (e.g. 0% at publish → 1% → up), verifying each change with the probe from rule 2. Announce demotions ahead of time — dialing down also demotes nightly dogfooders unless they set `"cline-nightly.rollout.bundleOverride": "next"`.
### Known caveats of this path
- **`engines.vscode` unions upward** (main's floor wins, e.g. `^1.101.0` vs legacy's `^1.84.0`): users on older VS Code are never offered the combined VSIX. Fail-safe during rollout; must be resolved before 100%.
- A red run can still mean a successful publish on paths that tag (see Gotchas).
## Nightly release
Happens automatically (cron 12:00 UTC). Manual cut:
```bash
gh workflow run ext-vscode-publish-nightly.yml --ref main # real publish
gh workflow run ext-vscode-publish-nightly.yml --ref main -f dry-run=true # artifact only
gh run watch <run-id> --exit-status --interval 60
```
No changelog/version prep — the version is computed. Verify with the marketplace query against `saoudrizwan.cline-nightly`.
**Red run ≠ failed publish**: the final tag-push step fails whenever main's HEAD touches `.github/workflows/**` (default token cannot create such refs). If "Published" appears in the logs, the release went out; push the `nightly-main-<UTC ts>-<sha12>` tag manually with user credentials.
## Legacy hotfix release (and emergency full rollback)
For shipping a fix on the `legacy-extension` branch — or as the **structural rollback** from a bad combined stable VSIX: a standalone legacy publish at a higher version supersedes the combined VSIX entirely (loader and all) for every user. (For "next bundle misbehaving" you don't need this — dial the flag to 0% instead.)
```bash
# On legacy-extension: commit the fix, bump apps/vscode/package.json ABOVE the
# highest version ever published to the listing (rule 1 — including combined
# versions, e.g. combined 4.1.0 live -> hotfix is 4.1.1, not 4.0.13),
# add the matching `## [x.y.z]` entry to root CHANGELOG.md, push.
gh workflow run ext-vscode-publish-legacy.yml --ref main \
-f release-type=release
# (the branch is hardcoded to legacy-extension in the workflow; it is
# deliberately not an input)
```
npm test suite runs ungated; the publish job waits on the `Publish` environment. This workflow derives + pushes the `v<version>` tag itself and creates the GitHub release — no manual tagging. Publishes to Marketplace **and** Open VSX. The branch is the npm codebase: use `npm`, never `bun`, and expect the old monolith layout (`apps/vscode/src/core/...`).
## Cutover: retiring the A/B machinery (the endgame)
When the next bundle has held at 100% long enough to trust:
1. **Resolve the engines floor**: decide whether stranding VS Code < main's `engines.vscode` on the last combined version is acceptable, or lower main's floor first.
2. Bump `apps/vscode/package.json` on `main` above everything ever published; root `CHANGELOG.md` entry to match (both are enforced by the workflow).
3. Ship standalone from main: `gh workflow run ext-vscode-publish-stable.yml --ref main` — tests main, tags `v<version>` itself, creates the GitHub release, publishes Marketplace + Open VSX.
4. Watch the same rollout telemetry through the transition — `extension_variant` disappears from events as users leave combined builds, which is itself the adoption signal.
5. Only after the standalone version dominates: retire `legacy-extension` (keep for history), delete `ext-vscode-publish-legacy.yml` and `ext-vscode-ab-package.yml`, convert the nightly workflow back to a plain build of main, remove `apps/vscode-rollout/`, and archive the `ext-sdk-bundle-rollout` flag in PostHog (harmless to machines still on a combined VSIX: absent flag fails safe to... nothing changing until they update, but their loader treats a deleted flag as legacy — leave the flag at 100% until combined-VSIX activations flatline, then archive).
6. Update this skill: delete the combined-era sections and keep the standalone flow.
## Gotchas index
- `inputs.*` are empty strings on `schedule` events — preserve `|| 'default'` fallbacks when editing the nightly workflow.
- `bun run package` in `apps/vscode` does not build `@cline/*` workspace deps — fresh checkouts need `bun run build:sdk` first (workflows handle this).
- Job-level `if:` ref checks in workflow YAML are advisory (a dispatched branch runs its own copy of the file); the enforced boundary is each environment's deployment-branch policy in repo settings.
- Marketplace PATs (`VSCE_PAT`/`OVSX_PAT`) are only mounted into publish steps; neither publish workflow has an untrusted trigger surface.
- Environment-approval runs left waiting don't time out quickly — they sit for days and (for ab-package publish runs) block their version's concurrency group.
- Local forcing for manual testing: `CLINE_BUNDLE_OVERRIDE=next|legacy` env (launch VS Code fresh from a terminal) or the `<prefix>.rollout.bundleOverride` setting + reload; both report as `override` in telemetry so they don't pollute cohort data.
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---
name: publish-ui
description: Prepare, validate, and publish standalone @cline/ui npm releases. Use when bumping the UI package version, publishing latest or next through ui-publish.yml, checking UI release readiness, or completing the one-time npm trusted-publishing bootstrap.
---
# Publish UI
Release `@cline/ui` independently from the Cline SDK runtime packages.
## Release contract
- Version source: `sdk/packages/ui/package.json`.
- Workflow: `.github/workflows/ui-publish.yml`.
- The package keeps `internal: true` only to stay out of the SDK's shared
version/publish scripts. It is still a public npm package because
`private: false` and `publishConfig.access: public` control npm publication.
- `latest` is the production channel. `next` is an opt-in preview channel.
- Use prerelease versions such as `0.2.0-next.0` for `next`; do not publish a
version intended for `latest` under the preview tag because npm versions
cannot be republished.
- There is no UI Git tag, GitHub release, schedule, or Slack announcement.
- The workflow runs only by manual dispatch. Every release attempt runs the UI
quality checks before publishing and requires `confirm_publish=publish` from
`main`.
- The publish job and npm trust relationship use the protected `Publish`
environment.
- Every npm publication needs a new semver version; npm versions are immutable.
- Always ask before pushing commits, triggering the publish workflow, changing
npm trust settings, or running a local publish command.
## Normal release
1. Inspect the branch, current version, npm state, and UI changes.
```sh
git status --short --branch
node -p "require('./sdk/packages/ui/package.json').version"
npm view @cline/ui dist-tags versions --json
git log --oneline --no-merges -- \
sdk/packages/ui apps/examples/desktop-app/webview/components/views/chat \
.github/workflows/ui-publish.yml
```
2. Ask for the npm channel and version together. For `latest`, ask for patch,
minor, major, or an explicit version. For `next`, require an explicit
prerelease version such as `0.2.0-next.0`. Do not guess. Update only
`sdk/packages/ui/package.json` and its workspace version in `bun.lock`. Do
not run the SDK version command.
3. Validate the release candidate.
```sh
bun install --filter @cline/ui --filter @cline/code --frozen-lockfile
bun -F @cline/ui typecheck
bun -F @cline/ui test
bun -F @cline/ui test:package
bun -F @cline/ui build-storybook
bun -F @cline/code test:chat-ui
```
The packed-package test installs the tarball with Bun/React 19 and with
npm/Node/React 18.
Inspect `bun pm pack --dry-run` when the exported file set changed.
4. Commit the version bump separately from feature work. Ask before pushing.
```sh
git add sdk/packages/ui/package.json bun.lock
git commit -m "chore(ui): release vX.Y.Z"
git push origin HEAD
```
5. After the release commit reaches `main`, restate the selected npm tag and ask
for explicit publish approval. Then trigger and watch the standalone
workflow:
```sh
run_url=$(gh workflow run ui-publish.yml --ref main \
-f npm_tag=latest \
-f confirm_publish=publish)
test -n "$run_url"
run_id=${run_url##*/}
gh run watch "$run_id" --exit-status
```
Use `npm_tag=next` only for a deliberate preview. Do not report success until
the workflow succeeds and npm shows the exact version under the selected tag.
```sh
npm view @cline/ui dist-tags versions --json
```
## One-time npm bootstrap
Use this only while `npm view @cline/ui` returns `E404`. npm requires the
package to exist before its GitHub trusted publisher can be configured.
1. Merge the package and `ui-publish.yml` to `main`. Start from a clean,
reviewed `main` checkout. Verify authentication, account 2FA, and write
access to the `@cline` npm organization. The `npm trust` command in step 4
requires npm CLI 11.15 or newer; the automated trusted-publishing workflow
itself enforces npm 11.5.1 or newer.
```sh
npm --version
npm whoami
npm view @cline/ui version
```
If npm is older than 11.15, ask before upgrading with
`npm install -g npm@^11.15.0`.
2. Run the normal release validation in step 3 above. Then build, pack, test,
and inspect the exact initial tarball. Record the absolute archive path
printed by the final command.
```sh
bun -F @cline/ui build
pack_dir=$(mktemp -d)
(cd sdk/packages/ui && bun pm pack --ignore-scripts --destination "$pack_dir" --quiet)
tarball=$(find "$pack_dir" -maxdepth 1 -name '*.tgz' -print -quit)
test -n "$tarball"
bun sdk/packages/ui/scripts/smoke-package.ts "$tarball"
tar -tzf "$tarball"
printf 'Bootstrap archive: %s\n' "$tarball"
```
3. Ask for explicit approval, then publish the initial version publicly under
`latest`:
```sh
npm publish /absolute/path/from-step-2.tgz --access public --tag latest
```
4. Ask separately before configuring the standalone workflow as the trusted
publisher:
```sh
npm trust github @cline/ui \
--repo cline/cline \
--file ui-publish.yml \
--env Publish \
--allow-publish
```
5. Verify both package state and trust. Every later release uses the workflow;
do not add a long-lived npm token.
```sh
npm view @cline/ui dist-tags versions --json
npm trust list @cline/ui
```
## Final report
Report the version and npm tag, release commit, whether anything was pushed,
workflow URL or bootstrap result, npm verification, and tests/builds run. If
the package still returns `E404`, state that bootstrap remains required.
@@ -1,4 +0,0 @@
interface:
display_name: "Publish UI"
short_description: "Prepare and publish the Cline UI package"
default_prompt: "Use $publish-ui to prepare and publish a new @cline/ui npm release."
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---
name: tuistory
description: |
Drive and test terminal apps (especially the Cline CLI TUI in apps/cli) through tuistory — named background PTY sessions that agents can read, wait on, snapshot, screenshot, and type into. Like Playwright/tmux for terminals, with reactive waiting instead of blind `sleep`.
Use this skill when you need to:
- Manually test or reproduce bugs in the interactive Cline TUI (`bun run cli -i`) from a headless environment
- Run a dev server or any long-lived/interactive process in the background without hanging your tool call
- Write or extend Playwright-style e2e tests for the TUI (`bun run test:e2e:tuistory` in apps/cli)
- Capture text snapshots or styled PNG screenshots of a TUI screen as evidence
---
# tuistory
[tuistory](https://github.com/remorses/tuistory) wraps any terminal command in a named background PTY session backed by a Ghostty terminal emulator. Agents interact with the session via short CLI calls that return instantly; humans can `tuistory attach` to the same session to watch or intervene. No real terminal or display (`DISPLAY`) is needed — it works fully headless, which makes it the preferred way for cloud agents to exercise the Cline TUI.
It is installed as a devDependency of `@cline/cli`, so the pinned binary resolves when you run from `apps/cli`:
```bash
cd apps/cli
bunx tuistory --help # source of truth for commands, options, and syntax
```
For full upstream docs: `curl -s https://raw.githubusercontent.com/remorses/tuistory/refs/heads/main/README.md`
## Driving the Cline TUI headlessly
Launch the TUI in an isolated environment so you don't touch real user config (`~/.cline`):
```bash
cd apps/cli
DATA_DIR=$(mktemp -d) && HOME_DIR=$(mktemp -d)
bunx tuistory -s cline --cols 120 --rows 36 \
--env HOME=$HOME_DIR --env CLINE_DATA_DIR=$DATA_DIR \
--env CLINE_DISABLE_CLINE_PASS_NOTICE=1 --env CLINE_TELEMETRY_DISABLED=1 \
-- bun src/index.ts --provider anthropic -m claude-sonnet-4-6 -k test-key
```
The dummy `-k test-key` renders the full chat UI; only an actual agent turn would fail. For recorded LLM turns, use the VCR cassettes described in `apps/cli/src/tests/helpers/env.ts` (`CLINE_VCR=playback` + `CLINE_VCR_CASSETTE`). Real turns need a provider credential (e.g. `ANTHROPIC_API_KEY`, `CLINE_API_KEY`).
Then use an **observe → act → observe** loop:
```bash
# Wait reactively for the chat view — never use sleep
bunx tuistory -s cline wait "What can I do for you?" --timeout 30000
# Act, then always observe the resulting screen state
bunx tuistory -s cline type "/settings"
bunx tuistory -s cline snapshot --trim
bunx tuistory -s cline press enter
bunx tuistory -s cline snapshot --trim
# Styled PNG of the current screen (prints the file path) — good for artifacts
bunx tuistory -s cline screenshot
# Full raw output stream (snapshot shows only the visible screen)
bunx tuistory read -s cline --all
# Tear down a session YOU started (double Ctrl+C exits the TUI cleanly)
bunx tuistory -s cline press ctrl c
bunx tuistory -s cline press ctrl c
bunx tuistory -s cline close
```
## Background processes (instead of tmux)
```bash
bunx tuistory -s my-server -- bun run dev:sidecar # returns immediately
bunx tuistory -s my-server wait "/listening|ready/i" --timeout 30000
bunx tuistory read -s my-server # new output since last read
bunx tuistory -s my-server restart # after code changes
```
## Key rules
- **Options before `--`, command after.** Everything after the first `--` is passed verbatim to the child: `tuistory -s name --cols 150 -- bun src/index.ts` is correct.
- **Snapshot after every action.** TUIs are stateful; dialogs and errors can render over the view you expect. `snapshot` reflects what the user actually sees (occluded text does not count), unlike grepping the raw stream.
- **Wait, never sleep.** `wait "text"` / `wait "/regex/i"` (case-sensitive by default) reacts as fast as the terminal updates; `wait-idle` when you don't know what to expect. Always pass `--timeout`.
- **Keys land instantly.** Unlike sleep-based scripts, a queued second keypress can leak into the next view (e.g. one Enter both accepts a slash completion and submits it).
- **Never close a session you didn't start.** Sessions are shared with humans (`tuistory attach -s name`) and other agents. Default to leaving sessions running; use `read`/`wait`/`snapshot` to inspect without disrupting.
- `--cols`/`--rows` affect TUI layout (assertions are width-sensitive); `--pixel-ratio 2` gives sharper screenshots.
## Writing e2e tests with the library API
`apps/cli/src/cli.tuistory.e2e.test.ts` (run: `bun run test:e2e:tuistory`) is the reference. The programmatic API runs in-process — no daemon:
```ts
import { launchTerminal } from "tuistory";
const session = await launchTerminal({
command: "bun",
args: ["src/index.ts", "--provider", "anthropic", "-k", "test-key"],
cwd: cliRoot,
env: isolatedEnv, // see createCliEnv() in the reference test
cols: 120,
rows: 36,
waitForDataTimeout: 30_000, // CLI cold start compiles a large TS graph
});
await session.waitForText("What can I do for you?", { timeout: 30_000 });
const screen = await session.text({ trimEnd: true }); // emulated screen state
await session.type("/settings");
await session.press("enter");
session.close(); // always close in test teardown
```
Screen-state assertions can check that stale UI is *gone* (`expect(screen).not.toContain(...)`), which stream-grepping harnesses cannot. `session.text({ only: { bold: true } })` filters by style; `session.read()` returns the raw stream since the last read.
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# Bun (tooling) and Node (runtime)
This repo uses **bun** for package management and task running, and **Node** as
the execution runtime. Both are correct at the same time; the distinction is the
source of most confusion, so keep it straight before editing scripts, configs,
docs, or comments.
## Use bun for tooling
- `bun install` (never `npm install` / `npm ci`)
- `bun run <script>` (never `npm run <script>`)
- `bunx <bin>` (never `npx <bin>`)
- `bun <file>.ts` to run a TS entrypoint directly (no `ts-node` / `tsx`)
- `bun esbuild.mjs` to drive the build (esbuild/vite are still the bundlers)
- `bun run --parallel ...` for parallel tasks
The root `bun.lock` is the single lockfile for the whole workspace, including
`apps/vscode`, `webview-ui`, and `testing-platform`. There are no per-package npm
lockfiles.
## Node is the runtime — do NOT rewrite these to bun
The build product runs on Node: the VS Code extension host loads
`dist/extension.js` as CommonJS under Node, and the standalone `cline-core` is a
Node process. The following are Node runtime/ABI references and are correct as-is:
| Reference | Why it is Node |
|-----------|----------------|
| esbuild `platform: "node"` / `target: "node..."` | The bundle targets the Node runtime (extension host, standalone core). |
| `TARGET_NODE_VERSION` (`scripts/package-standalone.mjs`) | Pins the Node ABI of the bundled standalone runtime (matches the JetBrains-packaged Node). |
| `prebuild-install --target=<node version>` | Downloads native `.node` binaries for that Node ABI. |
| `NODE_PATH=... node cline-core.js` | The standalone core is launched by Node, not bun. |
| `node:` import specifiers (e.g. `node:fs`) | Node builtin module scheme; unrelated to tooling. |
| `process.versions.node`, `engines.node`, `@types/node` | Runtime version probe / declared runtime / its types. |
| `ELECTRON_RUN_AS_NODE` | VS Code/Electron runs the extension host as Node. |
When a file legitimately uses both bun and node (e.g. `package-standalone.mjs`
does `bun install` but `prebuild-install --target=<node>`), the `node` token is
the runtime/ABI target, not tooling. If unsure, leave it.
## Tests: bun vs the VS Code host
A test file's runner is decided by its import:
- **`import ... from "bun:test"`** → runs under `bun test` (the node-side unit
suites + the SDK/model-catalog suites). `scripts/run-bun-unit-tests.ts`
discovers these by the `bun:test` import and runs one isolated bun process per
file. `build-tests.js` excludes them from the integration compile so the
`bun:test` builtin never reaches Node.
- **`import ... from "mocha"`** → runs under `@vscode/test-cli` in a real VS Code
extension host (Node). These exercise the live `vscode` API and cannot run
under bun.
So a file imports `bun:test` XOR `mocha`. Don't add `bun:test` to a test that
needs the real extension host.
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# Debug Harness
HTTP-controlled debugger for the VSCode extension at `src/dev/debug-harness/server.ts`.
## Quick start
```bash
# Build extension first if needed (protos + esbuild):
bun run protos && IS_DEV=true bun esbuild.mjs
# Launch (skip-build if already built). Run with node, NOT bun — Playwright's
# Electron launch times out under bun:
node src/dev/debug-harness/server.ts --skip-build --auto-launch
# In another terminal:
curl localhost:19229/api -d '{"method":"status"}'
```
## Data Isolation
The debugee runs with `CLINE_DIR=~/.cline2` by default, separate from your real `~/.cline`.
This prevents the debugee's logout from logging out the debugger, and vice versa.
Override with `--cline-dir /tmp/test-dir`. Check with `status()``clineDir`.
## Browser Capture & OAuth
The debugee runs with `CLINE_CAPTURE_BROWSER=1`, which intercepts `openExternal()` in
`src/utils/env.ts`. URLs are captured instead of opening a real browser:
- Logged to `$CLINE_DIR/data/debug-captured-urls.jsonl`
- POSTed in real-time to `/captured-url` on the harness server
- Queryable via `oauth.captured_urls`
### OAuth API
- **`oauth.captured_urls`** `{clear?}` — URLs the debugee tried to open
- **`oauth.read_stored_token`** — Check auth token presence in secrets.json
- **`oauth.simulate_callback`** `{path, code?, state?, provider?, token?}` — Build vscode:// callback URI
- **`oauth.read_captured_urls_file`** — Read on-disk JSONL of captured URLs
### OAuth testing flow
For **Cline OAuth** (SDK local callback): The SDK starts a local HTTP server, the auth URL
is captured. To complete: open the captured URL in a real browser (it redirects back to the
SDK's callback server), OR extract the callback port and `curl http://127.0.0.1:PORT/callback?code=...`.
For **MCP/Provider OAuth** (vscode:// URI): The redirect goes to a vscode:// URI.
`oauth.simulate_callback` only *builds* the URI — it does not deliver it, and the ESM
extension host can't `require()` the handler. To actually deliver the callback, call the
debug-only hook via `ext.evaluate` (with `awaitPromise: true`):
`globalThis.__clineHandleUri("vscode://saoudrizwan.claude-dev/...?code=...&state=...")`.
It runs the same `SharedUriHandler.handleUri` as VSCode's real URI handler and exists only
when `CLINE_CAPTURE_BROWSER` is set (the harness always sets it; never ships in prod).
For end-to-end MCP OAuth, get a real `code` from the local MCP OAuth test server
(`bun run dev:mcp-oauth-test-server`).
## Navigating Views — Use Commands, Not Clicks
Don't try to find/click small sidebar icons. Use VSCode commands via command palette.
Registered in `src/registry.ts`:
| Command | View |
|---------|------|
| `cline.accountButtonClicked` | Account / sign-in |
| `cline.historyButtonClicked` | Task history |
| `cline.settingsButtonClicked` | Settings |
| `cline.mcpButtonClicked` | MCP servers |
| `cline.plusButtonClicked` | New task (chat) |
| `cline.worktreesButtonClicked` | Worktrees |
```bash
curl localhost:19229/api -d '{"method":"ui.command_palette","params":{"command":"cline.accountButtonClicked"}}'
```
## Key commands
All via `POST localhost:19229/api` with `{"method":"...", "params":{...}}`:
- **`launch`** / **`shutdown`** — lifecycle
- **`ui.screenshot`** — screenshot to `/tmp/cline-debug/`; returns `{path}`**use `read_file` on the path to examine, do NOT `open` the file** (Preview.app covers the VSCode window)
- **`ui.open_sidebar`** — open the Cline sidebar
- **`ext.set_breakpoint`** `{file, line, condition?}` — breakpoint by source file (sourcemap-resolved)
- **`ext.evaluate`** `{expression, callFrameId?}` — eval in extension host
- **`ext.resume`** / **`ext.step_over`** / **`ext.step_into`** — stepping
- **`ext.call_stack`** — inspect when paused
- **`web.evaluate`** `{expression}` — eval in webview
- **`web.post_message`** `{message}` — send postMessage to extension host via exposed vsCodeApi
- **`wait_for_pause`** `{timeout?}` — block until breakpoint hit
- **`ui.locator`** `{role?, testId?, text?, frame?}` — Playwright locator (auto-retries on stale sidebar frame)
- **`ui.react_input`** `{text, selector?, clear?, submit?}` — set React textarea value via `execCommand('insertText')`; works reliably across multiple tasks
- **`ui.send_message`** `{text, images?, files?, responseType?}` — send chat message bypassing the textarea entirely (via gRPC postMessage)
- **`ui.command_palette`** `{command}` — run VSCode command
## Typical Session
```bash
# 1. Launch
curl localhost:19229/api -d '{"method":"launch","params":{"skipBuild":true}}'
# 2. Open sidebar + dismiss overlays (ALWAYS do this first)
curl localhost:19229/api -d '{"method":"ui.open_sidebar"}'
curl localhost:19229/api -d '{"method":"web.evaluate","params":{"expression":"document.querySelectorAll(\".sr-only\").forEach(el => el.parentElement?.click())"}}'
# 3. Navigate to view
curl localhost:19229/api -d '{"method":"ui.command_palette","params":{"command":"cline.accountButtonClicked"}}'
# 4. Check captured OAuth URLs if testing auth
curl localhost:19229/api -d '{"method":"oauth.captured_urls"}'
# 5. Verify
curl localhost:19229/api -d '{"method":"ui.screenshot"}'
```
## Caveats
- **⚠️ Dismiss promotional overlays FIRST**: On fresh launches, full-screen promo overlays block the sidebar. **Dismiss immediately after `ui.open_sidebar`**, before any other interaction or screenshot. May need to run twice:
```bash
curl localhost:19229/api -d '{"method": "ui.open_sidebar"}'
curl localhost:19229/api -d '{"method": "web.evaluate", "params": {"expression": "document.querySelectorAll(\".sr-only\").forEach(el => el.parentElement?.click())"}}'
```
- **Screenshots — don't open the file**: `ui.screenshot` and `ui.sidebar_screenshot` save PNGs to `/tmp/cline-debug/` and return the `{path}`. Use `read_file` on that path to examine screenshots. Running `open <path>` launches Preview.app on macOS which covers the VSCode window.
- **Scripts count = 0 after launch**: CDP connects after extension host starts, so scripts parsed during startup aren't tracked. Breakpoints still work via sourcemap resolution.
- **Port 9230**: Extension host inspector. If another VSCode instance uses this port, the harness will fail to connect. Kill other debug instances first.
- **macOS only** for now (Playwright Electron launch behavior).
- **Webview CDP**: `connect_webview` may fail depending on Electron version. `web.evaluate` still works via Playwright's `frame.evaluate()` fallback.
- **Sourcemap paths**: esbuild outputs relative paths like `../src/extension.ts` in the sourcemap. The resolver handles this, but if a file isn't found, use `ext.source_files` to see exact paths.
- **OAuth with fake codes**: Browser capture intercepts the URL but doesn't provide a valid auth code. For real OAuth testing, open the captured URL in a browser. For unit testing, mock the token exchange.
See `src/dev/debug-harness/README.md` for full API reference.
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This file is the secret sauce for working effectively in this codebase. It captures tribal knowledge—the nuanced, non-obvious patterns that make the difference between a quick fix and hours of back-and-forth & human intervention.
**When to add to this file:**
- User had to intervene, correct, or hand-hold
- Multiple back-and-forth attempts were needed to get something working
- You discovered something that required reading many files to understand
- A change touched files you wouldn't have guessed
- Something worked differently than you expected
- User explicitly asks to "add this to CLAUDE.md"
**Proactively suggest additions** when any of the above happen—don't wait to be asked.
**What NOT to add:** Stuff you can figure out from reading a few files, obvious patterns, or standard practices. This file should be high-signal, not comprehensive.
## Miscellaneous
- The whole repo (including `apps/vscode`) uses **bun** for package management and task running. Emit `bun run X` / `bun install` / `bunx <bin>` / `bun file.ts`, never npm/npx. Node remains the *runtime* (VS Code's extension host and the standalone cline-core are Node), so Node-runtime tokens are legitimate and must not be "fixed" to bun — see @.clinerules/bun-and-node.md for the keep-list vs rewrite-list.
- Avoid provider-specific string matching / hardcoded provider branches when fixing provider/config plumbing. Prefer provider metadata, shared catalog/defaults, explicit protocol/client capabilities, or centralized normalization utilities that apply by data shape rather than `providerId === "..."`. If a provider exception seems necessary, stop and explain why instead of adding ad-hoc string matching.
- This is a VS Code extension—check `package.json` for available scripts before trying to verify builds (e.g., `bun run compile`, not `bun run build`).
- When reading a configuration files that users may edit, use `readFileStrippingUtf8Bom`, `readFileSyncStrippingUtf8Bom`, or `stripUtf8Bom` from `@cline/shared/node`. DON'T strip byte order marks of user files handled by tools/passed to models.
- When creating PRs, contributors should not create changelog-entry files. Maintainers handle release versioning and changelog curation during the release process.
- When adding new feature flags, see this PR as a reference https://github.com/cline/cline/pull/7566
- Additional instructions about making requests: @.clinerules/network.md
## Searching the Codebase — Avoiding Build Output
Several directories contain build output or generated code that produces
noisy or unusable results with `search_files` / `grep`:
| Directory | What it is | Why it's a problem |
|-----------|-----------|-------------------|
| `out/` | esbuild bundle output | Mirrors `src/` structure as minified JS — every search gets duplicate hits on single-line files |
| `dist/` | Packaged extension | Entire extension bundled into one minified `extension.js` (~1 long line) |
| `dist-standalone/` | Standalone build output | Same minification issue |
| `src/generated/` | Generated protobuf code | Auto-generated from `proto/`; not the source of truth |
| `src/shared/proto/` | Generated proto type defs | Auto-generated from `proto/`; not the source of truth |
| `node_modules/` | Dependencies | Huge, not project source |
### How to skip build output
**`search_files`** — Point at `src/` (not the project root) and use `file_pattern`:
```
search_files(path="src/core", regex="myFunction", file_pattern="*.ts")
```
The `file_pattern` parameter is the most effective filter — e.g. `"*.ts"`,
`"*.tsx"`, `"*.proto"`.
**`grep` directly** — Exclude build dirs and restrict to source extensions:
```bash
grep -rn "myFunction" src/ --include="*.ts" --exclude-dir={out,dist,node_modules,generated}
```
### When you must search minified files
Sometimes you need to verify what got bundled (e.g., checking if a change
made it into the build). Minified files are typically one long line, so
normal `grep` shows the entire file as context. Use these approaches:
- **`grep -oP`** to extract just the match with limited surrounding context:
```bash
grep -oP '.{0,40}myFunction.{0,40}' dist/extension.js
```
- **`read_file`** on files in `out/src/` — these have source maps and are
more readable than `dist/extension.js` (which is the fully bundled output).
- **Source maps** — `out/src/*.js.map` and `dist/extension.js.map` can be
used to trace minified output back to original source locations.
## gRPC/Protobuf Communication
The extension and webview communicate via gRPC-like protocol over VS Code message passing.
**Proto files live in `proto/`** (e.g., `proto/cline/task.proto`, `proto/cline/ui.proto`)
- Each feature domain has its own `.proto` file
- For simple data, use shared types in `proto/cline/common.proto` (`StringRequest`, `Empty`, `Int64Request`)
- For complex data, define custom messages in the feature's `.proto` file
- Naming: Services `PascalCaseService`, RPCs `camelCase`, Messages `PascalCase`
- For streaming responses, use `stream` keyword (see `subscribeToAuthCallback` in `account.proto`)
**Run `bun run protos`** after any proto changes—generates types in:
- `src/shared/proto/` - Shared type definitions
- `src/generated/grpc-js/` - Service implementations
- `src/generated/nice-grpc/` - Promise-based clients
- `src/generated/hosts/` - Generated handlers
**Adding new enum values** (like a new `ClineSay` type) requires updating conversion mappings in `src/shared/proto-conversions/cline-message.ts`
**Adding new RPC methods** requires:
- Handler in `src/core/controller/<domain>/`
- Call from webview via generated client: `UiServiceClient.scrollToSettings(StringRequest.create({ value: "browser" }))`
**Example—the `explain-changes` feature touched:**
- `proto/cline/task.proto` - Added `ExplainChangesRequest` message and `explainChanges` RPC
- `proto/cline/ui.proto` - Added `GENERATE_EXPLANATION = 29` to `ClineSay` enum
- `src/shared/ExtensionMessage.ts` - Added `ClineSayGenerateExplanation` type
- `src/shared/proto-conversions/cline-message.ts` - Added mapping for new say type
- `src/core/controller/task/explainChanges.ts` - Handler implementation
- `webview-ui/src/components/chat/ChatRow.tsx` - UI rendering
## Adding New Global State Keys
Adding a new key to global state requires updates in multiple places. Missing any step causes silent failures.
Required steps:
1. Type definition in `src/shared/storage/state-keys.ts` - Add to `GlobalState` or `Settings` interface
2. Add any default value or transform in `src/shared/storage/state-keys.ts` if the key needs one
3. Read and write the value through `StateManager` (`setGlobalState()` / `getGlobalStateKey()`) after initialization
Persistent state is file-backed through `StateManager`; do not add new runtime reads or writes against VS Code `ExtensionContext` storage. That storage is only a legacy migration source.
Settings plumbing gotcha: if a key is user-toggleable from settings, wire both controller update paths:
- `src/core/controller/state/updateSettings.ts` for webview `updateSetting(...)`
- `src/core/controller/state/updateSettingsCli.ts` for CLI/ACP settings updates
Missing one path causes a toggle to appear to change in one surface while the backend state stays unchanged.
Webview toggle gotcha: settings changes must also round-trip back in state payloads.
- Add the field to `UpdateSettingsRequest` in `proto/cline/state.proto` (for webview update requests), then run `bun run protos`
- Include the key in `Controller.getStateToPostToWebview()` (`src/core/controller/index.ts`)
- Ensure `ExtensionState` and webview defaults include the key (`src/shared/ExtensionMessage.ts`, `webview-ui/src/context/ExtensionStateContext.tsx`)
If this round-trip wiring is missing, the backend value can update but the toggle in webview appears stuck or reverts.
## StateManager Cache vs Direct globalState Access
StateManager uses an in-memory cache populated during `StateManager.initialize()` from file-backed storage. For most state, use `controller.stateManager.setGlobalState()`/`getGlobalStateKey()`.
Exception: host migration code may read legacy VS Code storage before file-backed storage is initialized.
Example pattern:
```typescript
// Writing (normal pattern)
controller.stateManager.setGlobalState("myKey", value)
// Reading after initialization
const value = controller.stateManager.getGlobalStateKey("myKey")
```
Use `context.globalState` only in VS Code migration code that copies legacy ExtensionContext values into the shared file-backed stores.
## ChatRow Cancelled/Interrupted States
When a ChatRow displays a loading/in-progress state (spinner), you must handle what happens when the task is cancelled. This is non-obvious because cancellation doesn't update the message content—you have to infer it from context.
**The pattern:**
1. A message has a `status` field (e.g., `"generating"`, `"complete"`, `"error"`) stored in `message.text` as JSON
2. When cancelled mid-operation, the status stays `"generating"` forever—no one updates it
3. To detect cancellation, check TWO conditions:
- `!isLast` — if this message is no longer the last message, something else happened after it (interrupted)
- `lastModifiedMessage?.ask === "resume_task" || "resume_completed_task"` — task was just cancelled and is waiting to resume
**Example from `generate_explanation`:**
```tsx
const wasCancelled =
explanationInfo.status === "generating" &&
(!isLast ||
lastModifiedMessage?.ask === "resume_task" ||
lastModifiedMessage?.ask === "resume_completed_task")
const isGenerating = explanationInfo.status === "generating" && !wasCancelled
```
**Why both checks?**
- `!isLast` catches: cancelled → resumed → did other stuff → this old message is stale
- `lastModifiedMessage?.ask === "resume_task"` catches: just cancelled, hasn't resumed yet, this message is still technically "last"
**See also:** `BrowserSessionRow.tsx` uses similar pattern with `isLastApiReqInterrupted` and `isLastMessageResume`.
**Backend side:** When streaming is cancelled, clean up properly (close tabs, clear comments, etc.) by checking `taskState.abort` after the streaming function returns.
## Debug Harness: clear inherited VSCode/Electron env vars before launching
The debug harness (`apps/vscode/src/dev/debug-harness/server.ts`) launches a child
VSCode via Playwright's `_electron.launch({ env: { ...process.env, ... } })`. If you
run the harness from a process that was itself spawned by VSCode (e.g. the Cline
extension host, an integrated terminal, or an agent running inside VSCode), the
parent's VSCode/Electron env vars leak into the child and break the launch.
The fatal one is **`ELECTRON_RUN_AS_NODE=1`**: it makes the child VSCode binary run
as plain Node, so it rejects every VSCode CLI flag. Symptom:
```
.../Visual Studio Code.app/Contents/MacOS/Code: bad option: --extensionDevelopmentPath=...
Error: Process failed to launch! (Playwright _electron.launch)
```
This is NOT the macOS Playwright flakiness mentioned in the harness README — it's
env inheritance. Fix: strip the inherited vars before starting the harness:
```bash
env -u ELECTRON_RUN_AS_NODE -u ELECTRON_NO_ATTACH_CONSOLE \
-u VSCODE_CLI -u VSCODE_CODE_CACHE_PATH -u VSCODE_CRASH_REPORTER_PROCESS_TYPE \
-u VSCODE_CWD -u VSCODE_ESM_ENTRYPOINT -u VSCODE_HANDLES_UNCAUGHT_ERRORS \
-u VSCODE_IPC_HOOK -u VSCODE_NLS_CONFIG -u VSCODE_PID -u VSCODE_L10N_BUNDLE_LOCATION \
bun src/dev/debug-harness/server.ts --auto-launch --skip-build
```
Check your own env with `env | grep -iE 'electron|vscode_'` first; `ELECTRON_RUN_AS_NODE=1`
present means you must scrub before launching.
Other harness notes confirmed in practice:
- The extension host is **ESM** (`VSCODE_ESM_ENTRYPOINT`), so `ext.evaluate` has no
`require` and module-internal functions aren't reachable as globals. To inspect
internal builders (e.g. `buildBedrockProviderConfig`), set a breakpoint with
`ext.set_breakpoint` and read locals via `ext.evaluate` with the paused `callFrameId`
— don't try to `require()` the bundle.
- `web.evaluate` wraps the expression as a single returned expression; multi-statement
snippets must be an IIFE `(() => { ...; return x; })()`, otherwise you get
`SyntaxError: Unexpected token ';'`.
- Webview settings inputs are `vscode-text-field` web components with debounced React
onChange. Setting `.value` + dispatching events via `web.evaluate` is unreliable for
some fields; focus the inner shadow `input` then use real keystrokes (`ui.type` +
`ui.press Tab`, or click the dropdown option) to make the value persist.
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# Cline Hooks Documentation
## Overview
Cline hooks allow you to execute custom scripts at specific points in the agentic workflow. Hooks can be placed in either:
- **Global hooks directory**: `~/Documents/Cline/Hooks/` (applies to all workspaces)
- **Workspace hooks directory**: `.clinerules/hooks/` (applies to the workspace the repo is part of)
Hooks run automatically when enabled.
## Enabling Hooks
1. Open Cline settings in VSCode
2. Navigate to the Feature Settings section
3. Check the "Enable Hooks" checkbox
4. Hooks must be executable files (on Unix/Linux/macOS use `chmod +x hookname`)
## Available Hooks
### TaskStart Hook
- **When**: Runs when a NEW task is started (not when resuming)
- **Purpose**: Initialize task context, validate task requirements, set up environment
- **Global Location**: `~/Documents/Cline/Hooks/TaskStart`
- **Workspace Location**: `.clinerules/hooks/TaskStart`
### TaskResume Hook
- **When**: Runs when an EXISTING task is resumed (after user clicks resume button)
- **Purpose**: Validate resumed task state, restore context, check for changes since last run
- **Global Location**: `~/Documents/Cline/Hooks/TaskResume`
- **Workspace Location**: `.clinerules/hooks/TaskResume`
### TaskCancel Hook
- **When**: Runs when a task is cancelled or a hook is aborted by the user (only if there's actual active work or work was started)
- **Purpose**: Clean up resources, log cancellation, save state
- **Global Location**: `~/Documents/Cline/Hooks/TaskCancel`
- **Workspace Location**: `.clinerules/hooks/TaskCancel`
- **Note**: This hook is NOT cancellable
### TaskComplete Hook (coming soon!)
- **When**: Runs when a task is marked as complete
- **Purpose**: Log completion status, perform final cleanup, generate reports
- **Global Location**: `~/Documents/Cline/Hooks/TaskComplete`
- **Workspace Location**: `.clinerules/hooks/TaskComplete`
### UserPromptSubmit Hook
- **When**: Runs when the user submits a prompt/message (initial task, resume, or feedback)
- **Purpose**: Validate user input, preprocess prompts, add context to user messages
- **Global Location**: `~/Documents/Cline/Hooks/UserPromptSubmit`
- **Workspace Location**: `.clinerules/hooks/UserPromptSubmit`
### PreToolUse Hook
- **When**: Runs BEFORE a tool is executed
- **Purpose**: Validate parameters, block execution, or add context
- **Global Location**: `~/Documents/Cline/Hooks/PreToolUse`
- **Workspace Location**: `.clinerules/hooks/PreToolUse`
### PostToolUse Hook
- **When**: Runs AFTER a tool completes
- **Purpose**: Observe results, track patterns, or add context
- **Global Location**: `~/Documents/Cline/Hooks/PostToolUse`
- **Workspace Location**: `.clinerules/hooks/PostToolUse`
### PreCompact Hook (coming soon!)
- **When**: Runs BEFORE the conversation context is compacted/truncated
- **Purpose**: Observe compaction events, log context management, track token usage
- **Global Location**: `~/Documents/Cline/Hooks/PreCompact`
- **Workspace Location**: `.clinerules/hooks/PreCompact`
## Cross-Platform Hook Format
Cline uses a git-style approach for hooks that works consistently across all platforms:
### Hook Files (All Platforms)
- **No file extensions**: Hooks are named exactly `PreToolUse` or `PostToolUse` (no `.bat`, `.cmd`, `.sh` etc.)
- **Shebang required**: First line must be a shebang (e.g., `#!/usr/bin/env bash` or `#!/usr/bin/env node`)
- **Executable on Unix**: On Unix/Linux/macOS, hooks must be executable: `chmod +x PreToolUse`
- **Windows**: Not currently supported.
### How It Works
Like git hooks, Cline executes hook files through a shell that interprets the shebang line:
- On Unix/Linux/macOS: Native shell execution with shebang support
This means:
- ✅ Same hook script works on all platforms
- ✅ Write once, run anywhere
- ✅ Use any scripting language (bash, node, python, etc.)
### Creating Hooks
**On Unix/Linux/macOS:**
```bash
# Create hook file
nano ~/Documents/Cline/Hooks/PreToolUse
# Make executable
chmod +x ~/Documents/Cline/Hooks/PreToolUse
```
## Context Injection Timing
**IMPORTANT**: Context injected by hooks affects **FUTURE AI decisions**, not the current tool execution.
### Why This Matters
When a hook runs:
1. The AI has already decided what tool to use and with what parameters
2. The hook cannot modify those parameters
3. Context from the hook is added to the conversation
4. The AI sees this context in the **NEXT API request** and can adjust future decisions
### PreToolUse Hook Flow
```
1. AI decides: "I'll use write_to_file with these parameters"
2. PreToolUse hook runs → can block or add context
3. If allowed, tool executes with original parameters
4. Context is added to conversation
5. Next API request includes this context
6. AI adjusts future decisions based on context
```
### PostToolUse Hook Flow
```
1. Tool completes execution
2. PostToolUse hook runs → observes results
3. Hook adds context about the outcome
4. Context is added to conversation
5. Next API request includes this context
6. AI can learn from the results
```
## Hook Input/Output
### Input (via stdin as JSON)
All hooks receive:
```json
{
"clineVersion": "string",
"hookName": "TaskStart" | "TaskResume" | "TaskCancel" | "TaskComplete" | "UserPromptSubmit" | "PreToolUse" | "PostToolUse" | "PreCompact",
"timestamp": "string",
"taskId": "string",
"workspaceRoots": ["string"],
"userId": "string",
"taskStart": { // Only for TaskStart
"taskMetadata": {
"taskId": "string",
"ulid": "string",
"initialTask": "string"
}
},
"taskResume": { // Only for TaskResume
"taskMetadata": {
"taskId": "string",
"ulid": "string"
},
"previousState": {
"lastMessageTs": "string",
"messageCount": "string",
"conversationHistoryDeleted": "string"
}
},
"taskCancel": { // Only for TaskCancel
"taskMetadata": {
"taskId": "string",
"ulid": "string",
"completionStatus": "string"
}
},
"taskComplete": { // Only for TaskComplete
"taskMetadata": {
"taskId": "string",
"ulid": "string"
}
},
"userPromptSubmit": { // Only for UserPromptSubmit
"prompt": "string",
"attachments": ["string"]
},
"preToolUse": { // Only for PreToolUse
"toolName": "string",
"parameters": {}
},
"postToolUse": { // Only for PostToolUse
"toolName": "string",
"parameters": {},
"result": "string",
"success": boolean,
"executionTimeMs": number
},
"preCompact": { // Only for PreCompact
"contextSize": number,
"messagesToCompact": number,
"compactionStrategy": "string"
}
}
```
### Output (via stdout as JSON)
All hooks must return:
```json
{
"cancel": boolean, // Required: false to continue, true to block execution
"contextModification": "string", // Optional: Context for future AI decisions
"errorMessage": "string" // Optional: Error details if blocking
}
```
**Note**: The `cancel` field works as follows:
- `false` (or omitted): Allow execution to continue
- `true`: Block execution and show error message to user
## Hook Execution Limits
- **Timeout**: Hooks must complete within 30 seconds (configurable via `HOOK_EXECUTION_TIMEOUT_MS`)
- **Context Size**: Context modifications are limited to 50KB (configurable via `MAX_CONTEXT_MODIFICATION_SIZE`)
- **Error Handling**: Expected errors (file not found, permission denied, not a directory) are handled silently; unexpected file system errors are propagated
## Common Use Cases
### 1. Validation - Block Invalid Operations
```bash
#!/usr/bin/env bash
input=$(cat)
tool_name=$(echo "$input" | jq -r '.preToolUse.toolName')
path=$(echo "$input" | jq -r '.preToolUse.parameters.path // ""')
if [[ "$tool_name" == "write_to_file" && "$path" == *.js ]]; then
cat <<EOF
{
"cancel": true,
"errorMessage": "Cannot create .js files in TypeScript project",
"contextModification": "Use .ts/.tsx extensions only"
}
EOF
exit 0
fi
echo '{"cancel": false}'
```
### 2. Context Building - Learn from Operations
```bash
#!/usr/bin/env bash
input=$(cat)
tool_name=$(echo "$input" | jq -r '.postToolUse.toolName')
success=$(echo "$input" | jq -r '.postToolUse.success')
path=$(echo "$input" | jq -r '.postToolUse.parameters.path // ""')
if [[ "$tool_name" == "write_to_file" && "$success" == "true" ]]; then
cat <<EOF
{
"cancel": false,
"contextModification": "Created '$path'. Maintain consistency with this file's patterns in future operations."
}
EOF
else
echo '{"cancel": false}'
fi
```
### 3. Performance Monitoring
```bash
#!/usr/bin/env bash
input=$(cat)
execution_time=$(echo "$input" | jq -r '.postToolUse.executionTimeMs')
tool_name=$(echo "$input" | jq -r '.postToolUse.toolName')
if [[ "$execution_time" -gt 5000 ]]; then
cat <<EOF
{
"cancel": false,
"contextModification": "Tool '$tool_name' took ${execution_time}ms. Consider optimizing future similar operations."
}
EOF
else
echo '{"cancel": false}'
fi
```
### 4. Logging and Telemetry
```bash
#!/usr/bin/env bash
input=$(cat)
# Log to file
echo "$input" >> ~/.cline/hook-logs/tool-usage.jsonl
# Allow execution
echo '{"cancel": false}'
```
## Global vs Workspace Hooks
Cline supports two levels of hooks:
### Global Hooks
- **Location**: `~/Documents/Cline/Hooks/` (macOS/Linux)
- **Scope**: Apply to ALL workspaces and projects
- **Use Case**: Organization-wide policies, personal preferences, universal validations
- **Priority**: Order not guaranteed when combined with workspace hooks
### Workspace Hooks
- **Location**: `.clinerules/hooks/` in each workspace root
- **Scope**: Apply only to the specific workspace
- **Use Case**: Project-specific rules, team conventions, repository requirements
- **Priority**: Order not guaranteed when combined with global hooks
### Hook Execution
When multiple hooks exist (global and/or workspace):
- All hooks for a given step are executed **concurrently** using `Promise.all`
- **Execution order is not guaranteed** - hooks run in parallel
- If ALL hooks allow execution (`cancel: false`), the tool proceeds
- If ANY hook blocks (`cancel: true`), execution is blocked
**Result Combination:**
- `cancel`: If ANY hook returns `true`, execution is blocked
- `contextModification`: All context strings are concatenated with double newlines (`\n\n`)
- `errorMessage`: All error messages are concatenated with single newlines (`\n`)
### Setting Up Global Hooks
1. The global hooks directory is automatically created at:
- macOS/Linux: `~/Documents/Cline/Hooks/`
2. Add your hook script:
```bash
# Unix/Linux/macOS
nano ~/Documents/Cline/Hooks/PreToolUse
chmod +x ~/Documents/Cline/Hooks/PreToolUse
```
3. Enable hooks in Cline settings
### Example: Global + Workspace Hooks
**Global Hook** (applies to all projects):
```bash
#!/usr/bin/env bash
# ~/Documents/Cline/Hooks/PreToolUse
# Universal rule: Never delete package.json
input=$(cat)
tool_name=$(echo "$input" | jq -r '.preToolUse.toolName')
path=$(echo "$input" | jq -r '.preToolUse.parameters.path // ""')
if [[ "$tool_name" == "write_to_file" && "$path" == *"package.json"* ]]; then
echo '{"cancel": true, "errorMessage": "Global policy: Cannot modify package.json"}'
exit 0
fi
echo '{"cancel": false}'
```
**Workspace Hook** (applies to specific project):
```bash
#!/usr/bin/env bash
# .clinerules/hooks/PreToolUse
# Project rule: Only TypeScript files
input=$(cat)
tool_name=$(echo "$input" | jq -r '.preToolUse.toolName')
path=$(echo "$input" | jq -r '.preToolUse.parameters.path // ""')
if [[ "$tool_name" == "write_to_file" && "$path" == *.js ]]; then
echo '{"cancel": true, "errorMessage": "Project rule: Use .ts files only"}'
exit 0
fi
echo '{"cancel": false}'
```
**All hooks must allow execution for the tool to proceed.** Hooks may execute concurrently.
## Multi-Root Workspaces
If you have multiple workspace roots, you can place hooks in each root's `.clinerules/hooks/` directory. All hooks (global and workspace) may execute concurrently. Their results will be combined:
- **cancel**: If ANY hook returns `true`, execution is blocked
- **contextModification**: All context modifications are concatenated
- **errorMessage**: All error messages are concatenated
**Note:** No execution order is guaranteed between hooks from different directories.
## Troubleshooting
### Hook Not Running
- Ensure the "Enable Hooks" setting is checked
- Verify the hook file is executable (`chmod +x hookname`)
- Check the hook file has no syntax errors
- Look for errors in VSCode's Output panel (Cline channel)
### Hook Timing Out
- Reduce complexity of the hook script
- Avoid expensive operations (network calls, heavy computations)
- Consider moving complex logic to a background process
### Context Not Affecting Behavior
- Remember: context affects FUTURE decisions, not the current tool
- Ensure context modifications are clear and actionable
- Check that context isn't being truncated (50KB limit)
## Security Considerations
- Hooks run with the same permissions as VSCode
- Be cautious with hooks from untrusted sources
- Review hook scripts before enabling them
- Consider using `.gitignore` to avoid committing sensitive hook logic
- Hooks can access all workspace files and environment variables
## Best Practices
1. **Keep hooks fast** - Aim for <100ms execution time
2. **Make context actionable** - Be specific about what the AI should do
3. **Use structured prefixes** - Help the AI categorize context
4. **Handle errors gracefully** - Always return valid JSON
5. **Log for debugging** - Keep logs of hook executions for troubleshooting
6. **Test incrementally** - Start with simple hooks and add complexity
7. **Document your hooks** - Add comments explaining the purpose and logic
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# Networking & Proxy Support
To ensure Cline works correctly in all environments (VSCode, JetBrains, CLI) and with various network configurations (especially corporate proxies), strictly follow these guidelines for all network activity.
In extension code, do NOT use the global `fetch` or a default `axios` instance. (Note, `shared/net.ts` is exempt from these rules because it sets up the fetch wrappers.) In Webview code, you SHOULD use global `fetch`.
Global `fetch` and default `axios` do not automatically pick up proxy configurations in all environments (specifically JetBrains and CLI). You MUST use the provided utilities in `@/shared/net` which handle proxy agent configuration. In the webview, the browser/embedder handles proxies.
## Guidelines
### 1. Using `fetch`
Instead of `fetch(...)`, import the proxy-aware wrapper:
```typescript
import { fetch } from '@/shared/net'
// Usage is identical to global fetch
const response = await fetch('https://api.example.com/data')
```
### 2. Using `axios`
When using `axios`, you must apply the settings from `getAxiosSettings()`:
```typescript
import axios from 'axios'
import { getAxiosSettings } from '@/shared/net'
const response = await axios.get('https://api.example.com/data', {
headers: { 'Authorization': '...' },
...getAxiosSettings() // <--- CRITICAL: Injects the proxy agent if needed
})
```
### 3. Third-Party Clients (OpenAI, Ollama, etc.)
Most API client libraries allow you to customize the `fetch` implementation. You **MUST** pass the proxy-aware `fetch` to these clients.
**Example (OpenAI):**
```typescript
import OpenAI from "openai"
import { fetch } from "@/shared/net"
this.client = new OpenAI({
apiKey: '...',
fetch, // <--- CRITICAL: Pass our fetch wrapper
})
```
### 4. Tests
Use `mockFetchForTesting` to mock the underlying fetch implementation.
**Example (callback):**
```
import { mockFetchForTesting } from "@/shared/net"
...
let mockFetch = ...
mockFetchForTesting(mockFetch, () => {
// This calls mockFetch
fetch('https://foo.example').then(...)
})
// Original fetch is restored immediately when the call returns.
```
**Example (Promise):**
```
import { mockFetchForTesting } from "@/shared/net"
...
let mockFetch = ...
await mockFetchForTesting(mockFetch, async () => {
await ...
// This calls mockFetch
await fetch('https://foo.example')
...
})
// Original fetch is restored when the Promise from the callback settles
```
## Verification
If you are adding a new network call or integration:
1. Check `@/shared/net.ts` is imported.
2. Ensure `fetch` or `getAxiosSettings` is being used.
3. Verify that third-party clients are configured to use the custom fetch.
+1 -1
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@@ -42,7 +42,7 @@ Here, we use the common `StringRequest` and `KeyValuePair` types.
After editing a `.proto` file, regenerate the TypeScript code. From the project root, run:
```bash
bun run protos
npm run protos
```
This command compiles all `.proto` files and outputs the generated code to `src/generated/` and `src/shared/`. Do not edit these generated files manually.
-26
View File
@@ -1,26 +0,0 @@
# SDK Adapter
The VSCode extension runs on the Cline SDK (`@cline/core`, `@cline/llms`,
`@cline/shared`) through an adapter layer in `apps/vscode/src/sdk/`. The
webview still talks gRPC; the adapter translates between gRPC handlers and SDK
calls. See `apps/vscode/src/dev/debug-harness/README.md` for the debug harness.
## Conventions
1. **Look up SDK APIs, don't guess.** Use `kb_search(name="sdk", query="...")`
before implementing against an SDK surface.
2. **Reference the pre-SDK implementation when replacing a module.** Add a
`// Replaces classic src/core/... (see origin/main)` header and use
`kb_search(name="cline", commit="origin/main")` or
`git show origin/main:path` to consult the prior implementation.
3. **Single entry point.** There is one codepath — the SDK adapter. No
`CLINE_SDK` env flag.
4. **Use `{appBaseUrl}`**, never hardcode `app.cline.bot`.
5. **Avoid `as` casts.** Use explicit conversion functions with tests. The
branded types in `apps/vscode/src/sdk/model-catalog/contracts.ts` exist so
casts are unnecessary outside parse/compute boundaries.
## Debug harness
- **Dismiss the Kanban/promo overlay** before any debug harness interaction.
- **Use the command palette** to navigate tabs in the debug harness.
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@@ -1,64 +0,0 @@
# Storage Architecture
Global settings, secrets and workspace state are stored in **file-backed JSON stores** under `~/.cline/data/`. This is the shared storage layer used by VSCode, CLI, and JetBrains.
## Key Abstractions
### `StorageContext` (src/shared/storage/storage-context.ts)
The entry point. Created via `createStorageContext()` and passed to `StateManager.initialize()`. Contains three `ClineFileStorage` instances:
- `globalState``~/.cline/data/globalState.json`
- `secrets``~/.cline/data/secrets.json` (mode 0o600)
- `workspaceState``~/.cline/data/workspaces/<hash>/workspaceState.json`
### `ClineFileStorage` (src/shared/storage/ClineFileStorage.ts)
Synchronous JSON key-value store backed by a single file. Supports `get()`, `set()`, `setBatch()`, `delete()`. Writes are atomic (write-then-rename).
### `StateManager` (src/core/storage/StateManager.ts)
In-memory cache on top of `StorageContext`. All runtime reads hit the cache; writes update cache immediately and debounce-flush to disk.
## ⚠️ Do NOT Use VSCode's ExtensionContext for Storage
**Do not** read from or write to `context.globalState`, `context.workspaceState`, or `context.secrets` for persistent data. These are VSCode-specific and not available on CLI or JetBrains.
Instead, use:
```typescript
// Reading state
StateManager.get().getGlobalStateKey("myKey")
StateManager.get().getSecretKey("mySecretKey")
StateManager.get().getWorkspaceStateKey("myWsKey")
// Writing state
StateManager.get().setGlobalState("myKey", value)
StateManager.get().setSecret("mySecretKey", value)
StateManager.get().setWorkspaceState("myWsKey", value)
```
Remember that your data may be read by a different client than the one that wrote it. For example, a value written by Cline in JetBrains may be read by Cline CLI.
## VSCode Migration (src/hosts/vscode/vscode-to-file-migration.ts)
On VSCode startup, a migration copies data from VSCode's `ExtensionContext` storage into the file-backed stores. This runs in `src/common.ts` before `StateManager.initialize()`.
- **Sentinel**: `__vscodeMigrationVersion` key in global state and workspace state — prevents re-migration.
- **Merge strategy**: File store wins. Existing values are never overwritten.
- **Safe downgrade**: VSCode storage is NOT cleared, so older extension versions still work.
## Adding New Storage Keys
1. Add to `src/shared/storage/state-keys.ts` (see existing patterns)
2. Read/write via `StateManager` (NOT via `context.globalState`)
3. If adding a secret, add to `SecretKeys` array in `state-keys.ts`
## File Layout
```
~/.cline/
data/
globalState.json # Global settings & state
secrets.json # API keys (mode 0o600)
tasks/
taskHistory.json # Task history (separate file)
workspaces/
<hash>/
workspaceState.json # Per-workspace toggles
```
@@ -1,29 +0,0 @@
# Address PR Comments
Review and address all comments on the current branch's PR.
## Steps
1. Get the current branch name and find the associated PR:
```bash
gh pr view --json number,title,body
```
2. Understand the PR context:
- Get the full diff: `git diff origin/main...HEAD`
- Read the changed files to understand what the PR is doing
- Read related files if needed to understand the broader context
- Understand the intent and spirit of the changes, not just the code
3. Fetch all PR comments:
- Inline comments: `gh api repos/{owner}/{repo}/pulls/{pr_number}/comments`
- General comments: `gh pr view {pr_number} --json comments,reviews`
4. Present a summary of all comments with your recommendation for each (apply, skip, or respond). Ignore bot noise (release automation, CI status, etc.).
5. **Wait for my approval** before proceeding.
6. After approval:
- Apply code changes and commit
- Reply to comments that were addressed or intentionally skipped
- Push commits
+549
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@@ -0,0 +1,549 @@
The goal of this workflow is to take a changeset for a release of Cline, an autonomous coding agent extension that plugs right into your IDE, and write the updated announcement component, and the updated changelog.
For reference, here are some examples of how we converted previous changesets to announcement components / changelogs.
- 3.14
<changeset>
This PR was opened by the Changesets release GitHub action. When you're ready to do a release, you can merge this and publish to npm yourself or setup this action to publish automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated.
Releases
claude-dev@3.14.0
Minor Changes
77c9863: create clinerules folder if its currently a file and creating new rule
0ffb7dd: disabling shift hint for now & improving tooltip behavior
79b76fd: Add support for custom model ID in AWS Bedrock provider, enabling use of Application Inference Profile.
eb6e481: Full support for LaTeX rendering
df37f29: Add support for custom API request timeout. Previously, timeouts were hardcoded to 30 seconds for providers like Ollama or 15 seconds for OpenRouter and Cline. Now users can set a custom timeout value in milliseconds through the settings interface.
e4d26be: allow cursorrules and windsurfrules
c5de50f: Fix Handle @withRetry() SyntaxError when running extension locally issue
61d2f42: enabled pricing calculation for gemini and vertex + more robust caching & cache tracking for gemini & vertex
aed152b: add truncation notice when truncating manually
2fe2405: Migrate Cline Tools Section to new docs
19cc8bc: Add a timeout setting for the terminal connection, allowing users to adjust this if they are having timeout issues
03d4410: Added copy button to code blocks.
c78fe23: addressed race condition in terminal command usage
91e222f: add checkpoints after more messages
14230e7: add newrule slash command
1c7d33a: Add remote config with posthog allowing for disabling new features until they're reading, making for a better developer experience.
4196c14: add cache ui for open router and cline provider
d97424f: showing expanded task by default
5294e78: Refactor to not pass a message for showing the MCP View from the servers modal
70cc437: Fix Windows path issue: Correct handling of import.meta.url to avoid leading slash in pathname
4b697d8: Migrate the addRemoteServer to protobus
Patch Changes
c63d9a1: updated drag and drop text to say "drop" instead of "drag"
459adf0: Add markdown copy to chat
74ec823: Minor UX improvement to drag and drop ux
b0961f4: Remove linear pull request action
e9ce384: searchCommits protobus migration
5802b68: createRuleFile protobus migration
df7f9fc: Add dependsOn to more blocks in the tasks.json
41ae732: Fix for git commit mentions in repos with no git commits
7e78445: Adding args to allow Cursor to open workspaces (for checkpoint testing/development)
bdfda6f: feat(bedrock): Introduce Amazon Nova Premier
65243ad: Introduce UI library for future UI development
4565e06: checkIsImageURL migrated to protobus
5a8e9d8: protobus migration for openImage
deeda6e: Lowering Gemini cache TTL time
db0b022: Adding UI to show openrouter balance next to provider
4650ffa: deleteRuleFile protobus migration
d4bd755: fix cost calculation
</changeset>
<changelog>
## [3.14.0]
- Add UI to show openrouter balance next to provider
- Add support for custom model ID in AWS Bedrock provider, enabling use of Application Inference Profile (Thanks @clicube!)
- Add more robust caching & cache tracking for gemini & vertex providers
- Add support for LaTeX rendering
- Add support for custom API request timeout. Timeouts were 15-30s, but can now be configured via settings for OpenRouter/Cline & Ollama (Thanks @WingsDrafterwork!)
- Add truncation notice when truncating manually
- Add a timeout setting for the terminal connection, allowing users to set a time to wait for terminal startup
- Add copy button to code blocks
- Add copy button to markdown blocks (Thanks @weshoke!)
- Add checkpoints to more messages
- Add slash command to create a new rules file (/newrule)
- Add cache ui for open router and cline provider
- Add Amazon Nova Premier model to Bedrock (Thanks @watany!)
- Add support for cursorrules and windsurfrules
- Add support for batch history deletion (Thanks @danix800!)
- Improve Drag & Drop experience
- Create clinerules folder creating new rule if it's needed
- Enable pricing calculation for gemini and vertex providers
- Refactor message handling to not show the MCP View of the server modal
- Migrate the addRemoteServer to protobus (Thanks @DaveFres!)
- Update task header to be expanded by default
- Update Gemini cache TTL time to 15 minutes
- Fix race condition in terminal command usage
- Fix to correctly handle `import.meta.url`, avoiding leading slash in pathname for Windows (Thanks @DaveFres!)
- Fix @withRetry() decoration syntax error when running extension locally (Thanks @DaveFres!)
- Fix for git commit mentions in repos with no git commits
- Fix cost calculation (Thanks @BarreiroT!)
</changelog>
<announcement-component>
const Announcement = ({ version, hideAnnouncement }: AnnouncementProps) => {
const minorVersion = version.split(".").slice(0, 2).join(".") // 2.0.0 -> 2.0
return (
<div style={containerStyle}>
<VSCodeButton appearance="icon" onClick={hideAnnouncement} style={closeIconStyle}>
<span className="codicon codicon-close"></span>
</VSCodeButton>
<h3 style={h3TitleStyle}>
🎉{" "}New in v{minorVersion}
</h3>
<ul style={ulStyle}>
<li>
<b>Gemini prompt caching:</b> Gemini and Vertex providers now support prompt caching and price tracking for
Gemini models.
</li>
<li>
<b>Copy Buttons:</b> Buttons were added to Markdown and Code blocks that allow you to copy their contents
easily.
</li>
<li>
<b>/newrule command:</b> New slash command to have cline write your .clinerules for you based on your
workflow.
</li>
<li>
<b>Drag and drop improvements:</b> Don't forget to hold shift while dragging files!
</li>
<li>Added more checkpoints across the task, allowing you to restore from more than just file changes.</li>
<li>Added support for rendering LaTeX in message responses. (Try asking Cline to show the quadratic formula)</li>
</ul>
<Accordion isCompact className="pl-0">
<AccordionItem
key="1"
aria-label="Previous Updates"
title="Previous Updates:"
classNames={{
trigger: "bg-transparent border-0 pl-0 pb-0 w-fit",
title: "font-bold text-[var(--vscode-foreground)]",
indicator:
"text-[var(--vscode-foreground)] mb-0.5 -rotate-180 data-[open=true]:-rotate-90 rtl:rotate-0 rtl:data-[open=true]:-rotate-90",
}}>
<ul style={ulStyle}>
<li>
<b>Global Cline Rules:</b> store multiple rules files in Documents/Cline/Rules to share between
projects.
</li>
<li>
<b>Cline Rules Popup:</b> New button in the chat area to view workspace and global cline rules files
to plug and play specific rules for the task
</li>
<li>
<b>Slash Commands:</b> Type <code>/</code> in chat to see the list of quick actions, like starting a
new task (more coming soon!)
</li>
<li>
<b>Edit Messages:</b> You can now edit a message you sent previously by clicking on it. Optionally
restore your project when the message was sent!
</li>
</ul>
</AccordionItem>
</Accordion>
{/*
// Leave this here for an example of how to structure the announcement
<ul style={{ margin: "0 0 8px", paddingLeft: "12px" }}>
<li>
OpenRouter now supports prompt caching! They also have much higher rate limits than other providers,
so I recommend trying them out.
<br />
{!apiConfiguration?.openRouterApiKey && (
<VSCodeButtonLink
href={getOpenRouterAuthUrl(vscodeUriScheme)}
style={{
transform: "scale(0.85)",
transformOrigin: "left center",
margin: "4px -30px 2px 0",
}}>
Get OpenRouter API Key
</VSCodeButtonLink>
)}
{apiConfiguration?.openRouterApiKey && apiConfiguration?.apiProvider !== "openrouter" && (
<VSCodeButton
onClick={() => {
vscode.postMessage({
type: "apiConfiguration",
apiConfiguration: { ...apiConfiguration, apiProvider: "openrouter" },
})
}}
style={{
transform: "scale(0.85)",
transformOrigin: "left center",
margin: "4px -30px 2px 0",
}}>
Switch to OpenRouter
</VSCodeButton>
)}
</li>
<li>
<b>Edit Cline's changes before accepting!</b> When he creates or edits a file, you can modify his
changes directly in the right side of the diff view (+ hover over the 'Revert Block' arrow button in
the center to undo "<code>{"// rest of code here"}</code>" shenanigans)
</li>
<li>
New <code>search_files</code> tool that lets Cline perform regex searches in your project, letting
him refactor code, address TODOs and FIXMEs, remove dead code, and more!
</li>
<li>
When Cline runs commands, you can now type directly in the terminal (+ support for Python
environments)
</li>
</ul>*/}
<div style={hrStyle} />
<p style={linkContainerStyle}>
Join us on{" "}
<VSCodeLink style={linkStyle} href="https://x.com/cline">
X,
</VSCodeLink>{" "}
<VSCodeLink style={linkStyle} href="https://discord.gg/cline">
discord,
</VSCodeLink>{" "}
or{" "}
<VSCodeLink style={linkStyle} href="https://www.reddit.com/r/cline/">
r/cline
</VSCodeLink>
for more updates!
</p>
</div>
)
}
</announcement-component>
- 3.13
<changeset>
Minor Changes
2964388: Added copy button to MermaidBlock component
75143a7: Add the ability to fetch from global cline rules files
Patch Changes
a0252e7: convert inline style to tailwind css of file SettingsView.tsx
ab59bd9: Add stream options back to xai provider
7276f50: Icons to indicate an action is occuring outside of the users workspace
0b19ba6: update to NEW model
</changeset>
<changelog>
## [3.13.0]
- Add Cline rules popover under the chat field, allowing you to easily add, enable & disable workspace level or global rule files
- Add new slash command menu letting you type “/“ to do quick actions like creating new tasks
- Add ability to edit past messages, with options to restore your workspace back to that point
- Allow sending a message when selecting an option provided by the question or plan tool
- Add command to jump to Cline's chat input
- Add support for OpenAI o3 & 4o-mini (Thanks @PeterDaveHello and @arafatkatze!)
- Add baseURL option for Google Gemini provider (Thanks @owengo and @olivierhub!)
- Add support for Azure's DeepSeek model. (Thanks @yt3trees!)
- Add ability for models that support it to receive image responses from MCP servers (Thanks @rikaaa0928!)
- Improve search and replace diff editing by making it more flexible with models that fail to follow structured output instructions. (Thanks @chi-cat!)
- Add detection of Ctrl+C termination in terminal, improving output reading issues
- Fix issue where some commands with large output would cause UI to freeze
- Fix token usage tracking issues with vertex provider (Thanks @mzsima!)
- Fix issue with xAI reasoning content not being parsed (Thanks @mrubens!)
</changelog>
<announcement-component>
const Announcement = ({ version, hideAnnouncement }: AnnouncementProps) => {
const minorVersion = version.split(".").slice(0, 2).join(".") // 2.0.0 -> 2.0
return (
<div style={containerStyle}>
<VSCodeButton appearance="icon" onClick={hideAnnouncement} style={closeIconStyle}>
<span className="codicon codicon-close"></span>
</VSCodeButton>
<h3 style={h3TitleStyle}>
🎉{" "}New in v{minorVersion}
</h3>
<ul style={ulStyle}>
<li>
<b>Global Cline Rules:</b> store multiple rules files in Documents/Cline/Rules to share between projects.
</li>
<li>
<b>Cline Rules Popup:</b> New button in the chat area to view workspace and global cline rules files to plug
and play specific rules for the task
</li>
<li>
<b>Slash Commands:</b> Type <code>/</code> in chat to see the list of quick actions, like starting a new task
(more coming soon!)
</li>
<li>
<b>Edit Messages:</b> You can now edit a message you sent previously by clicking on it. Optionally restore
your project when the message was sent!
</li>
</ul>
<h4 style={{ margin: "5px 0 5px" }}>Previous Updates:</h4>
<ul style={ulStyle}>
<li>
<b>Model Favorites:</b> You can now mark your favorite models when using Cline & OpenRouter providers for
quick access!
</li>
<li>
<b>Faster Diff Editing:</b> Improved animation performance for large files, plus a new indicator in chat
showing the number of edits Cline makes.
</li>
<li>
<b>New Auto-Approve Options:</b> Turn off Cline's ability to read and edit files outside your workspace.
</li>
</ul>
{/*
// Leave this here for an example of how to structure the announcement
<ul style={{ margin: "0 0 8px", paddingLeft: "12px" }}>
<li>
OpenRouter now supports prompt caching! They also have much higher rate limits than other providers,
so I recommend trying them out.
<br />
{!apiConfiguration?.openRouterApiKey && (
<VSCodeButtonLink
href={getOpenRouterAuthUrl(vscodeUriScheme)}
style={{
transform: "scale(0.85)",
transformOrigin: "left center",
margin: "4px -30px 2px 0",
}}>
Get OpenRouter API Key
</VSCodeButtonLink>
)}
{apiConfiguration?.openRouterApiKey && apiConfiguration?.apiProvider !== "openrouter" && (
<VSCodeButton
onClick={() => {
vscode.postMessage({
type: "apiConfiguration",
apiConfiguration: { ...apiConfiguration, apiProvider: "openrouter" },
})
}}
style={{
transform: "scale(0.85)",
transformOrigin: "left center",
margin: "4px -30px 2px 0",
}}>
Switch to OpenRouter
</VSCodeButton>
)}
</li>
<li>
<b>Edit Cline's changes before accepting!</b> When he creates or edits a file, you can modify his
changes directly in the right side of the diff view (+ hover over the 'Revert Block' arrow button in
the center to undo "<code>{"// rest of code here"}</code>" shenanigans)
</li>
<li>
New <code>search_files</code> tool that lets Cline perform regex searches in your project, letting
him refactor code, address TODOs and FIXMEs, remove dead code, and more!
</li>
<li>
When Cline runs commands, you can now type directly in the terminal (+ support for Python
environments)
</li>
</ul>*/}
<div style={hrStyle} />
<p style={linkContainerStyle}>
Join us on{" "}
<VSCodeLink style={linkStyle} href="https://x.com/cline">
X,
</VSCodeLink>{" "}
<VSCodeLink style={linkStyle} href="https://discord.gg/cline">
discord,
</VSCodeLink>{" "}
or{" "}
<VSCodeLink style={linkStyle} href="https://www.reddit.com/r/cline/">
r/cline
</VSCodeLink>
for more updates!
</p>
</div>
)
}
</announcement-component>
We have a changeset PR that automatically generated as new unreleased PRs are merged into main, the PR is always called "Changeset version bump" and the author is github-actions.
The Changeset PR description looks something like this:
<changeset-pr-description>
This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and publish to npm yourself or [setup this action to publish automatically](https://github.com/changesets/action#with-publishing). If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated.
# Releases
## claude-dev@3.16.0
### Minor Changes
- c6e8b04: Recent task list is now collapsible, allowing users to hide their recent tasks (e.g. when sharing their screen).
- aabe4ae: Add detection for new users to display special components
- 6c18d51: adds global endpoint for vertex ai users
- 080ed7c: Add Tailwind CSS IntelliSense to the the recommended extensions list
- 5147e28: new workflow feature
### Patch Changes
- c0b3c69: fix eternal loading states when the last message is a checkpoint
- 570ece3: selectImages protos migration
- 8d8452e: askResponse protobus migration
- cd1ff2a: Finishing the migration of Vscode Advanced settings to Settings Webview
</changeset-pr-description>
The changeset pr is ALWAYS on the following branch: `changeset-release/main`.
I have the `gh` command line tool set up and authenticated, so you have everything you need.
The first step is to get the full diff from the changeset PR to look at the changes that were automatically made to the `CHANGELOG.md` file. By default it will automatically add a new section to the changelog.md file with the new version. The problem with the automatically generated section is that it just takes the text that the developers threw into their changeset files for each corresponding PR, and they can be pretty vague and bad. Additionally there's some stuff that is totally irrelevant for the end user, like minor refactoring changes. So I manually typically go in and update this section to be a proper changelog that will show up in our patchnotes. You can look at how the rest of the file is done because those are all good examples of us updating this to use good language for the end user. We usually put new features up top (and the most exciting flagship features at the very top), and then bug fixes/improvements at the bottom. Having some basic organization to the ordering of the bullet points by content is nice. But use common sense.
To handle this process effectively, do the following:
For each of the automatically generated bullet points in the Changelog.md, you should
1. Take the commit hash at the start of the bullet point, and use the `gh` command line tool find the PR that it was associated with.
2. Use the `gh` command to get the PR title/description/discussion to understand the context surrounding the PR.
3. Use the `gh` command line tool to get the full PR diff to fully understand the changes made in the code.
4. Synthesize that knowledge to determine (a) whether or not this change is relevant to end users and (b) what the text & ordering of the line should be.
5. Update the `CHANGELOG.md` accordingly
Do this for every single item in the list from the autogenerated bullet points. We want to be diligent and have a full understanding of every feature so we can make the best changelog ever!
Here are some principles for good changelogs from keepchangelog.com, a handy guide:
<keepachangelog-pinciples-for-good-changelogs>
### Guiding Principles
- Changelogs are for humans, not machines.
- There should be an entry for every single version.
- The same types of changes should be grouped.
- The latest version comes first.
### Bullet points in the changelog should follow these principles:
- Types of changes
- Added for new features.
- Changed for changes in existing functionality.
- Deprecated for soon-to-be removed features.
- Removed for now removed features.
- Fixed for any bug fixes.
- Security in case of vulnerabilities.
</keepachangelog-pinciples-for-good-changelogs>
Lastly, when developers make a PR, they typically make a changeset. And they have 3 options when making the changeset:
1. Patch
2. Minor
3. Major
Sometimes they label something as minor when really it should just be a patch. Or vice versa. Because of this, the automatic version bump may be incorrect. So when starting out this workflow, you should use the <ask_followup_question> tool to confirm with me whether or not this should be a patch bump (show the old version number and what the proposed new version number would be) or a minor bump. Part of the release process is making sure the version in package.json that is automatically changed actually corresponds with what we decided the bump should actually be based on the features. ALL these modifications happen in the `changeset-release/main` branch btw.
<important_note>
Before doing any of this, make sure you check out the `changeset-release/main` and pull the most recent up to date changes. Then perform all this work in that branch.
New announcement banners should ONLY be made for minor version bumps or higher. That's another reason why double checking if the changelog warrants the bump is important.
Also, SUPER important: For any external contributors that aren't part of the cline github organization, we always want to add a (Thanks @username!) at the end of the changelog to attribute them properly. We're an open source project and it's ethical to do this.
</important_note>
Once the changelog looks good, and the version number looks good, we gotta double check that the version number in the changelog has the brackets around it. And as a final step, double check the package.json version number matches the latest number in the changelog. And as the ultimate final step we run `npm run install:all` to make sure the package version number permiates through the lock file.
<detailed_sequence_of_steps>
# Cline Release Process - Detailed Sequence of Steps
## Before Starting
1. First, examine the changeset PR without checking it out:
```bash
gh pr view changeset-release/main
```
2. View the PR diff to see the auto-generated CHANGELOG.md changes:
```bash
gh pr diff changeset-release/main > changeset-diff.txt
cat changeset-diff.txt | grep -A 50 "CHANGELOG.md"
```
## Initial Setup
3. Once you're ready to start, checkout and update the changeset release branch:
```bash
git checkout changeset-release/main
git pull origin changeset-release/main
```
## Analyzing Each Change
4. For each commit hash in the auto-generated changelog entries:
a. Find the PR number associated with a commit hash:
```bash
gh pr list --search "<commit-hash>" --state merged
```
b. Get PR details for better context:
```bash
gh pr view <PR-number>
```
c. Check if the contributor is external to determine if attribution is needed:
```bash
# Extract username from PR
USERNAME=$(gh pr view <PR-number> --json author --jq .author.login)
# Check if user is a member of the Cline organization
# this command is a bit finnicky, but it 100% works.
# if you see a `Error executing command: The command ran successfully, but we couldn't capture its output. Please proceed accordingly.` error, just retry it until you actually get the output
# don't make any assumptions, just retry the command to actually get the output and determine if they're external or not.
# no output means they are an external contributor, otherwise if there is output they are an internal contributor (part of our github org)
gh api "orgs/cline/members" --jq "map(.login)" | grep -i "pashpashpash"
```
d. View the full PR diff to understand code changes:
```bash
gh pr diff <PR-number> > pr-diff-<PR-number>.txt
cat pr-diff-<PR-number>.txt
```
## Updating the Changelog
5. Based on PR analysis, update the CHANGELOG.md with user-friendly descriptions:
- Use the `<replace_in_file>` tool to edit the CHANGELOG.md file
- Group by feature type (Added, Changed, Fixed)
- Put most exciting features at the top
- Move bug fixes and small improvements to the bottom
- Use clear, end-user focused language
- For external contributors, add attribution at the end of the relevant entry: `(Thanks @username!)`
## Version Number Verification
6. Confirm the version bump is appropriate:
- Check package.json to verify the auto-generated version number:
```bash
cat package.json | grep "\"version\""
```
- If the feature set doesn't warrant a minor bump, use the `<replace_in_file>` tool to modify package.json
7. Ensure the version in CHANGELOG.md has brackets around it:
```
## [3.16.0]
```
## Creating the Announcement (for minor/major versions only)
8. If this is a minor version bump, create/update the announcement component:
- Use the `<replace_in_file>` tool to edit the src/views/components/announcement.tsx file
- Update the highlights based on key features
- Move previous version highlights to the "Previous Updates" section
- Use the previous announcement components as reference for structure
## Finalizing the Release
9. Update dependencies with the new version number:
```bash
npm run install:all
```
10. Commit your changes:
```bash
git add CHANGELOG.md package.json package-lock.json src/views/components/announcement.tsx
git commit -m "Update CHANGELOG.md and announcement for version 3.16.0"
```
11. Push your changes to the changeset branch:
```bash
git push origin changeset-release/main
```
12. Check that your changes pushed successfully:
```bash
git status
```
</detailed_sequence_of_steps>
@@ -1,49 +0,0 @@
# Find Best Reviewers for Current Branch
Analyze my current branch to find the best people to review my PR based on **domain expertise** and git history.
## Steps
1. Get the current branch name and verify it's not `main`
2. Get the diff between the current branch and `origin/main`:
- Use `git diff origin/main...HEAD --name-only` to get changed files
- Use `git diff origin/main...HEAD` to understand the nature/spirit of the changes
3. **Identify the domain/feature area** being changed:
- Read the diff carefully to understand WHAT is being changed conceptually (e.g., "slash commands", "authentication", "API client", "UI components")
- This semantic understanding is crucial for finding the right reviewers
4. Find domain experts by searching for related files and their contributors:
- Identify all files related to the feature/domain (not just the ones changed)
- Example: if changing slash commands, find ALL slash-command related files across the codebase
- Use `git log --format="%an <%ae>" -- <related-files-pattern>` to find who has expertise in that domain
5. For additional context, also gather:
- `git blame -L <start>,<end> origin/main -- <file-path>` for exact lines changed
- Recent commit activity on related files
6. Score and rank contributors by:
- **Highest weight: Domain expertise** - who has the most commits to files in this feature area (even files not touched by this PR)
- **Medium weight: Direct file expertise** - commits to the specific files being changed
- **Lower weight: Line-level ownership** - authored the exact lines being modified
7. Exclude myself (check against my git config user.email)
8. Present the top 5 reviewers as an ordered list
## Output Format
Output an ordered list:
1. **Name** - Domain expert: 15 commits to slash-command related files, authored core parsing logic
2. **Name** - 8 commits to affected files, recently added the feature being modified
3. ...
## Commands Reference
```bash
git config user.email
git diff origin/main...HEAD --name-only
git diff origin/main...HEAD
# Find related files for a domain (adjust pattern based on what you learn from the diff)
find . -type f \( -name "*slash-command*" -o -name "*SlashCommand*" \) | head -20
# Get contributors for related files
find . -type f \( -name "*slash-command*" -o -name "*SlashCommand*" \) -print0 | xargs -0 git log --format="%an <%ae>" -- | sort | uniq -c | sort -rn
git log --format="%an <%ae>" -- <file> | sort | uniq -c | sort -rn
git blame -L 10,20 origin/main -- <file>
```
Do NOT ask questions - analyze the changes, identify the domain, and output the reviewer list.
-187
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@@ -1,187 +0,0 @@
# Hotfix Release
Create a hotfix release by cherry-picking specific commits from main onto the latest release tag.
## Overview
This workflow helps you:
1. Select specific commits from main to include in a hotfix
2. Create a release notes commit on main (changelog + version bump)
3. Cherry-pick everything onto the latest release tag
4. Tag and push the new release
## Step 1: Setup and Gather Information
First, ensure we're on main and up to date:
```bash
git checkout main && git pull origin main
```
Get the latest release tag:
```bash
git tag --sort=-v:refname | head -1
```
## Step 2: Present Commits Since Last Release
Show all commits on main since the last release tag:
```bash
LAST_TAG=$(git tag --sort=-v:refname | head -1)
git log ${LAST_TAG}..HEAD --oneline --format="%h %s (%an)"
```
Also get the commit messages already on the tag (to identify previously cherry-picked commits). Note: Run these as separate commands to avoid shell parsing issues with parentheses in author names:
```bash
LAST_TAG=$(git tag --sort=-v:refname | head -1)
PREV_TAG=$(git tag --sort=-v:refname | head -2 | tail -1)
```
```bash
git log $PREV_TAG..$LAST_TAG --oneline --format="%s"
```
**Present the list** to the user in a numbered format with commit hash, subject, and author. For any commits whose subject line already appears in the tag's history (previously cherry-picked in an earlier hotfix) or are "Release Notes" commits, add `(already in previous hotfix)` or `(release notes - skip)` after them so the user knows to skip those.
Ask which commits to include in the hotfix.
Use the ask_followup_question tool to let the user specify which commits they want (by number or hash).
## Step 3: Analyze Selected Commits
For each selected commit:
1. Get the full commit message: `git show --no-patch --format="%B" <hash>`
2. Get the diff to understand the change: `git show <hash> --stat`
3. Find the associated PR if any: `gh pr list --search "<hash>" --state merged --json number,title --jq '.[0]'`
Build a mental model of what these changes do for the changelog.
## Step 4: Determine New Version Number
Parse the current version from package.json and the last tag:
```bash
LAST_TAG=$(git tag --sort=-v:refname | head -1)
echo "Last release: $LAST_TAG"
cat package.json | grep '"version"'
```
Hotfixes always increment the patch version (e.g., 3.40.0 -> 3.40.1, or 3.40.1 -> 3.40.2).
**Ask the user to confirm the new version number.**
## Step 5: Create Release Notes Commit on Main
On the main branch, create a commit that updates:
1. **CHANGELOG.md** - Add a new section for the hotfix version at the top:
```markdown
## [3.40.1]
- Description of fix 1
- Description of fix 2
```
Write clear, user-friendly descriptions based on your analysis of the commits.
2. **package.json** - Update the version field to the new version
3. No changelog-entry file cleanup is needed. Contributors do not create changelog-entry files in this repo.
**No dependency install is needed.** A CHANGELOG + `version` bump does not change any dependency, and `bun.lock` does not pin workspace-package versions, so the lockfile stays consistent. The publish workflow runs `bun install --frozen-lockfile`, which would *fail* on an out-of-sync lock — so only run `bun install` here if you actually change dependencies (then commit the updated `bun.lock`).
Commit with message format: `v{VERSION} Release Notes (hotfix)`
In the commit body, mention:
- This is for a hotfix release
- List the cherry-picked commits that will be included
```bash
git add CHANGELOG.md package.json
git commit -m "v3.40.1 Release Notes (hotfix)
Hotfix release including:
- <commit1-hash>: <description>
- <commit2-hash>: <description>
"
```
Push to main:
```bash
git push origin main
```
## Step 6: Build the Hotfix on the Tag
Checkout the last release tag (detached HEAD):
```bash
LAST_TAG=$(git tag --sort=-v:refname | head -1)
git checkout $LAST_TAG
```
Cherry-pick the selected commits in order:
```bash
git cherry-pick <commit1-hash>
git cherry-pick <commit2-hash>
# ... etc
```
Finally, cherry-pick the release notes commit you just pushed to main:
```bash
# Get the hash of the release notes commit (should be HEAD of main)
RELEASE_NOTES_COMMIT=$(git rev-parse main)
git cherry-pick $RELEASE_NOTES_COMMIT
```
## Step 7: Tag and Push
After all cherry-picks are applied successfully:
```bash
# Tag the new release
git tag v{VERSION}
# Push the tag to remote
git push origin v{VERSION}
```
## Step 8: Return to Main and Summary
Return to main branch:
```bash
git checkout main
```
**Copy a Slack announcement message to clipboard** with the version and PR links for each included fix:
```
VS Code Hotfix v{VERSION} Published
- Description of fix 1 https://github.com/cline/cline/pull/{PR_NUMBER}
- Description of fix 2 https://github.com/cline/cline/pull/{PR_NUMBER}
```
Present a final summary:
- New version: v{VERSION}
- Tag pushed: yes
- Commits included: (list them)
- Slack message copied to clipboard: yes
Remind the user to:
1. Manually trigger the publish release GitHub Action at: https://github.com/cline/cline/actions/workflows/ext-vscode-publish-stable.yml (paste `v{VERSION}` as the tag)
2. Post the Slack message to announce the hotfix
## Important Notes
- This workflow does NOT create a release branch - only tags
- The release notes commit goes to main first, then gets cherry-picked to the tag
- This keeps main's history accurate while allowing hotfix releases from tags
- If cherry-pick conflicts occur, resolve them before continuing
+2
View File
@@ -347,6 +347,8 @@ A few notes:
So until the settings page is update, and this is added to settings in a way that's clean and doesn't confuse new users, I don't think we can merge this. Please bear with us.
</request_changes_comment>
<request_changes_comment>
Also, don't forget to add a changeset since this fixes a user-facing bug.
The architectural change is solid - moving the focus logic to the command handlers makes sense. Just don't want to introduce subtle timing issues by removing those timeouts.
</request_changes_comment>
</example_comments_that_i_have_written_before>
-64
View File
@@ -1,64 +0,0 @@
# Release
Prepare and publish a release directly from `main`.
## Overview
This workflow helps you:
1. Select/confirm the target version
2. Curate `CHANGELOG.md` entries manually for end users
3. Ensure `package.json` version matches the changelog
4. Create and push a release commit + tag
5. Trigger publish workflow
6. Update GitHub release notes and share a summary
## Process
### 1) Sync and determine version
```bash
git checkout main
git pull origin main
cat package.json | grep '"version"'
```
Confirm the release version with the maintainer (patch/minor/major).
### 2) Curate changelog and version
- Edit `CHANGELOG.md` for the target version using human-friendly release notes.
- Ensure version headers use bracket format, e.g. `## [3.66.1]`.
- Update `package.json` version to the same value.
### 3) Commit and tag
```bash
git add CHANGELOG.md package.json package-lock.json
git commit -m "v<version> Release Notes"
git push origin main
git tag v<version>
git push origin v<version>
```
### 4) Trigger publish workflow
Tell the maintainer to run:
https://github.com/cline/cline/actions/workflows/ext-vscode-publish-stable.yml
Use `v<version>` as the release tag.
### 5) Update GitHub release notes
After publish completes:
```bash
gh release view v<version> --json body --jq '.body'
gh release edit v<version> --notes "<final curated release notes>"
```
### 6) Final summary
Provide:
- Released version/tag
- Link to release page
- Summary of top end-user changes
-50
View File
@@ -1,50 +0,0 @@
# THIS IS AUTOGENERATED. DO NOT EDIT MANUALLY
version = 1
name = "cline"
[setup]
script = '''
if [ ! -d "node_modules" ]; then
MAIN_WORKTREE="$(git worktree list | head -n1 | awk '{print $1}')"
ln -s "$MAIN_WORKTREE/node_modules" node_modules
ln -s "$MAIN_WORKTREE/webview-ui/node_modules" webview-ui/node_modules
fi
'''
[[actions]]
name = "VS Code"
icon = "run"
command = "chmod +x ./scripts/run-extension-host.sh && ./scripts/run-extension-host.sh production"
[[actions]]
name = "CLI"
icon = "run"
command = '''
cd sdk
bun install
bun run cli
'''
[[actions]]
name = "npm install"
icon = "tool"
command = '''
rm node_modules
rm webview-ui/node_modules
npm run install:all
'''
[[actions]]
name = "pull main"
icon = "tool"
command = '''
git fetch origin main
if ! git merge-base --is-ancestor main origin/main; then
echo "Local main has commits not on origin/main. Aborting..."
exit 1
fi
git update-ref refs/heads/main refs/remotes/origin/main
echo "main updated to $(git rev-parse --short main)"
'''
+3 -2
View File
@@ -1,2 +1,3 @@
/.github/ @saoudrizwan @arafatkatze @maxpaulus43 @dominiccooney
/README.md @saoudrizwan @juanpflores
/docs/
/.github/ @saoudrizwan @garoth @sjf
/README.md @saoudrizwan @nickbaumann98
+3 -26
View File
@@ -7,16 +7,13 @@ body:
value: |
**Important:** All bug reports must be reproducible using Claude Sonnet 4.5. Cline uses complex prompts so less capable models may not work as expected.
- type: dropdown
id: cline-surface
id: plugin-type
attributes:
label: Cline Surface
description: Which Cline surface are you reporting a bug for?
label: Plugin Type
description: Which plugin are you reporting a bug for?
options:
- VSCode Extension
- JetBrains Plugin
- CLI
- Desktop App
- Cloud Platform
default: 0
validations:
required: true
@@ -28,12 +25,6 @@ body:
placeholder: 'e.g., 1.2.3'
validations:
required: true
- type: checkboxes
id: beta
attributes:
label: Beta version
options:
- label: I am using a beta version of Cline
- type: textarea
id: what-happened
attributes:
@@ -61,20 +52,6 @@ body:
placeholder: 'e.g., cline:anthropic/claude-sonnet-4.5, gemini:gemini-2.5-pro-exp-03-25'
validations:
required: false
- type: textarea
id: ide-diagnostics
attributes:
label: Diagnostics
description: |
Paste the diagnostics for your Cline surface. This captures the build, runtime, and host details we need.
- VSCode Extension: open `Help → About` (Windows/Linux) or `Code → About Visual Studio Code` (macOS), then copy the info.
- JetBrains Plugin: open `Help → About` (Windows/Linux) or `<IDE name> → About` (macOS), then click `Copy` to grab build, runtime, OS, memory, and cores.
- CLI: there is no About dialog. Run `cline --version` and paste the output.
- Desktop App: paste the app version from the Settings view.
- Cloud Platform: paste your browser name and version, plus the page URL where the issue occurred.
placeholder: Paste the copied About info, `cline --version` output, or browser/app details here.
validations:
required: false
- type: textarea
id: system-info
attributes:
-155
View File
@@ -1,155 +0,0 @@
name: Sign Windows CLI binaries
description: >
Authenticode-signs the compiled Windows CLI executables with Azure Trusted
Signing (via jsign, so it runs on Linux runners) and verifies the resulting
signatures. If the Azure Trusted Signing secrets are not configured, the
action logs a warning and exits successfully so releases keep working while
signing infrastructure is being provisioned.
inputs:
azure-client-id:
description: Client ID of the Entra app with the Trusted Signing Certificate Profile Signer role (OIDC federated credential, no client secret).
required: false
default: ""
azure-tenant-id:
description: Entra tenant ID.
required: false
default: ""
azure-subscription-id:
description: Azure subscription ID containing the Trusted Signing account.
required: false
default: ""
endpoint:
description: Trusted Signing account endpoint, for example https://eus.codesigning.azure.net.
required: false
default: ""
account:
description: Trusted Signing account name.
required: false
default: ""
certificate-profile:
description: Trusted Signing certificate profile name.
required: false
default: ""
files:
description: Newline-separated list of PE files to sign.
required: true
runs:
using: composite
steps:
- name: Check signing configuration
id: check
shell: bash
env:
AZURE_CLIENT_ID: ${{ inputs.azure-client-id }}
AZURE_TENANT_ID: ${{ inputs.azure-tenant-id }}
AZURE_SUBSCRIPTION_ID: ${{ inputs.azure-subscription-id }}
SIGNING_ENDPOINT: ${{ inputs.endpoint }}
SIGNING_ACCOUNT: ${{ inputs.account }}
SIGNING_PROFILE: ${{ inputs.certificate-profile }}
run: |
missing=()
set_count=0
for var in AZURE_CLIENT_ID AZURE_TENANT_ID AZURE_SUBSCRIPTION_ID SIGNING_ENDPOINT SIGNING_ACCOUNT SIGNING_PROFILE; do
if [ -z "${!var}" ]; then
missing+=("$var")
else
set_count=$((set_count + 1))
fi
done
if [ "${#missing[@]}" -eq 0 ]; then
echo "Azure Trusted Signing is configured; Windows binaries will be signed."
echo "enabled=true" >> "$GITHUB_OUTPUT"
elif [ "$set_count" -eq 0 ]; then
echo "::warning::Azure Trusted Signing is not configured; publishing UNSIGNED Windows binaries. Set the AZURE_* and AZURE_TRUSTED_SIGNING_* repository secrets to enable signing."
echo "enabled=false" >> "$GITHUB_OUTPUT"
else
# Partial configuration is almost certainly a typo'd or renamed
# secret. Fail loudly instead of silently publishing unsigned.
echo "::error::Azure Trusted Signing is PARTIALLY configured; refusing to publish. Missing: ${missing[*]}"
exit 1
fi
- name: Azure login (OIDC)
if: steps.check.outputs.enabled == 'true'
uses: azure/login@a457da9ea143d694b1b9c7c869ebb04ebe844ef5 # v2.3.0
with:
client-id: ${{ inputs.azure-client-id }}
tenant-id: ${{ inputs.azure-tenant-id }}
subscription-id: ${{ inputs.azure-subscription-id }}
- name: Sign Windows binaries
if: steps.check.outputs.enabled == 'true'
shell: bash
env:
SIGNING_ENDPOINT: ${{ inputs.endpoint }}
SIGNING_ACCOUNT: ${{ inputs.account }}
SIGNING_PROFILE: ${{ inputs.certificate-profile }}
FILES: ${{ inputs.files }}
JSIGN_VERSION: "7.5"
JSIGN_SHA256: "602a51c3545a6dc4fb99bd2ea7152b26d1345916d0c93ddfbd5936cb735af91c"
run: |
set -euo pipefail
JSIGN_JAR="${RUNNER_TEMP}/jsign-${JSIGN_VERSION}.jar"
curl -fsSL -o "$JSIGN_JAR" "https://github.com/ebourg/jsign/releases/download/${JSIGN_VERSION}/jsign-${JSIGN_VERSION}.jar"
echo "${JSIGN_SHA256} ${JSIGN_JAR}" | sha256sum --check --strict
JSIGN_STOREPASS=$(az account get-access-token --resource https://codesigning.azure.net --query accessToken --output tsv)
echo "::add-mask::${JSIGN_STOREPASS}"
export JSIGN_STOREPASS
# jsign expects the endpoint host, not the URL. Tolerate both the
# portal's display form (trailing slash) and the bare form.
KEYSTORE="${SIGNING_ENDPOINT#https://}"
KEYSTORE="${KEYSTORE%/}"
while IFS= read -r file; do
[ -z "$file" ] && continue
echo "Signing ${file}"
java -jar "$JSIGN_JAR" \
--storetype TRUSTEDSIGNING \
--keystore "$KEYSTORE" \
--storepass env:JSIGN_STOREPASS \
--alias "${SIGNING_ACCOUNT}/${SIGNING_PROFILE}" \
--alg SHA-256 \
--tsaurl http://timestamp.acs.microsoft.com \
--tsmode RFC3161 \
--replace \
"$file"
done <<< "$FILES"
- name: Verify signatures
if: steps.check.outputs.enabled == 'true'
shell: bash
env:
FILES: ${{ inputs.files }}
# Authenticode chains anchor to the Microsoft Identity Verification
# Root CA 2020, which is not in the Mozilla TLS bundle, so fetch it
# explicitly (pinned) for osslsigncode chain validation.
MS_ROOT_URL: "https://www.microsoft.com/pkiops/certs/Microsoft%20Identity%20Verification%20Root%20Certificate%20Authority%202020.crt"
MS_ROOT_SHA256: "5367f20c7ade0e2bca790915056d086b720c33c1fa2a2661acf787e3292e1270"
run: |
set -euo pipefail
if ! command -v osslsigncode >/dev/null; then
sudo apt-get update -qq
sudo apt-get install -y -qq osslsigncode
fi
MS_ROOT_DER="${RUNNER_TEMP}/ms-identity-root-2020.crt"
MS_ROOT_PEM="${RUNNER_TEMP}/ms-identity-root-2020.pem"
curl -fsSL -o "$MS_ROOT_DER" "$MS_ROOT_URL"
echo "${MS_ROOT_SHA256} ${MS_ROOT_DER}" | sha256sum --check --strict
openssl x509 -inform DER -in "$MS_ROOT_DER" -out "$MS_ROOT_PEM"
while IFS= read -r file; do
[ -z "$file" ] && continue
echo "Verifying signature on ${file}"
# Timestamp countersignature chain is checked separately by Windows;
# -ignore-timestamp only skips TSA chain validation here, not the
# Authenticode chain itself.
osslsigncode verify -in "$file" -CAfile "$MS_ROOT_PEM" -ignore-timestamp
done <<< "$FILES"

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