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Kyle Carberry
e6a9b59abe
Adds the workspace-context indicator UI for agent chats, part of breaking the "Workspace Context Sources for Coder Agents" RFC (#26466) into small, reviewable PRs. ## What this adds - **Pinned context popover**: the context-usage indicator now lists the chat's pinned resources, instruction files, skills, and MCP servers with their tools. Unusable resources (invalid skill, unreadable/oversize file) are surfaced in an "Issues" section with their error rather than dropped silently. - **Drift and error states**: when the pinned context differs from the agent's latest snapshot, the ring shows a warning marker and the popover explains the drift. A snapshot-level error gets a distinct treatment. - **Refresh context**: a button re-pins the chat to the agent's latest snapshot via `PUT /api/experimental/chats/{id}/context`. - **Live updates**: `context_dirty` watch events apply the lightweight dirty flags across the cached chat lists and refetch the open chat so the full pinned detail loads. ## Not included The context **changes/diff** view (the "View changes" affordance and its dialog) is intentionally deferred to a later split, so this PR contains no diff rendering. ## Testing - `pnpm lint` (types, biome, circular deps, React Compiler, knip) - `pnpm test src/api/queries/chats.test.ts` (cache-merge unit tests, including the new `context_dirty` cases) - `pnpm test:storybook src/pages/AgentsPage/components/ContextUsageIndicator.stories.tsx` (4 stories) - `pnpm format` <details> <summary>Design notes</summary> This is **Split 3** of #26466. Split sequence: 1. #26558 - prompt pin consumption (merged) 2. #26570 - `codersdk` context resource types (merged). During review the type was renamed `ChatContextMCPTool` -> `ChatContextTool` and the field `mcp_tools` -> `tools`; this PR consumes those merged names. 3. **This PR** - the UI. 4. CLI `coder exp chat context` source CRUD + `refresh` (next). 5. The context diff (`changes`, `ChatContextResourceChange`, the changes dialog, and `buildContentPatch`) - last. Key decisions: - The backend already publishes `ChatWatchEventKindContextDirty` and exposes the refresh endpoint (#26389). Watch/pubsub payloads stay lightweight: they carry only the `dirty`/`dirty_since`/`error` flags and omit `resources`. So `mergeWatchedChatSummary` merges (not replaces) the cached context to preserve the pinned `resources` a single-chat GET populated, and the `AgentsPage` watch handler refetches only the open chat to pull the full pinned detail. - The indicator prefers the chat's pinned `resources`; while they have not loaded it falls back to the agent's `last_injected_context`, skipping the empty context-file placeholder so it never renders a nameless row. - All diff/changes rendering is excluded here and lands in the final split to keep this PR focused on the read-only pinned view and the refresh action. </details> *This PR was created by Coder Agents on behalf of @kylecarbs.*
Coder is a self-hosted platform for cloud development environments and AI coding agents. Workspaces are defined with Terraform, connected through a secure Wireguard® tunnel, and automatically shut down when not used. Coder Agents runs a native AI coding agent whose loop executes in the control plane on your infrastructure, with no API keys in workspaces.
- Define cloud development environments in Terraform
- EC2 VMs, Kubernetes Pods, Docker Containers, etc.
- Automatically shutdown idle resources to save on costs
- Onboard developers in seconds instead of days
- Delegate coding work to AI agents on your infrastructure
- Bring any model (Anthropic, OpenAI, Google, Bedrock, self-hosted)
- No LLM credentials in workspaces, user identity on every action
- Centralized model governance, cost tracking, and audit logging
Quickstart
The most convenient way to try Coder is to install it on your local machine and experiment with provisioning cloud development environments using Docker (works on Linux, macOS, and Windows).
# First, install Coder
curl -L https://coder.com/install.sh | sh
# Start the Coder server (caches data in ~/.cache/coder)
coder server
# Navigate to http://localhost:3000 to create your initial user,
# create a Docker template and provision a workspace
Install
The easiest way to install Coder is to use the
install script for Linux
and macOS. For Windows, use the latest ..._installer.exe file from GitHub
Releases.
curl -L https://coder.com/install.sh | sh
You can run the install script with --dry-run to see the commands that will be used to install without executing them. Run the install script with --help for additional flags.
See install for additional methods.
Once installed, you can start a production deployment with a single command:
# Automatically sets up an external access URL on *.try.coder.app
coder server
# Requires a PostgreSQL instance (version 13 or higher) and external access URL
coder server --postgres-url <url> --access-url <url>
Use coder --help to get a list of flags and environment variables. See the install guides for a complete tutorial.
Documentation
Browse the documentation or visit a specific section below:
- Workspaces: Workspaces contain the IDEs, dependencies, and configuration information needed for software development
- Templates: Templates are written in Terraform and describe the infrastructure for workspaces
- Coder Agents: Delegate coding work to AI agents running on your self-hosted infrastructure
- Administration: Learn how to operate Coder
- Premium: Learn about paid features built for large teams
- IDEs: Connect your existing editor to a workspace
Support
Feel free to open an issue if you have questions, run into bugs, or have a feature request.
Join our Discord to provide feedback on in-progress features and chat with the community using Coder!
Integrations
New integrations are always in progress. Open an issue to request one. Contributions are welcome in any official or community repository.
Official
- Coder Registry: Templates, modules, and integrations for common development environments
- VS Code Extension: Open any Coder workspace in VS Code with a single click
- JetBrains Toolbox Plugin: Open any Coder workspace from JetBrains Toolbox with a single click
- JetBrains Gateway Plugin: Open any Coder workspace in JetBrains Gateway with a single click
- Dev Containers: Build development environments using
devcontainer.jsonon Docker, Kubernetes, and OpenShift - Kubernetes Log Stream: Stream Kubernetes Pod events to the Coder startup logs
- Self-Hosted VS Code Extension Marketplace: A private extension marketplace that works in restricted or airgapped networks integrating with code-server.
- GitHub Actions: An action to set up the Coder CLI in GitHub workflows
Community
- Community Templates: Community-contributed workspace templates in the Coder Registry
- Community Modules: Community-contributed modules to extend Coder templates
- Provision Coder with Terraform: Provision Coder on Google GKE, Azure AKS, AWS EKS, DigitalOcean DOKS, IBMCloud K8s, OVHCloud K8s, and Scaleway K8s Kapsule with Terraform
- Coder Template GitHub Action: A GitHub Action that updates Coder templates
- Discord: Chat with the community and provide feedback on in-progress features
Contributing
New contributors are always welcome. If you are new to the Coder codebase, see the contribution guide to get started.
Hiring
Apply on the careers page if you are interested in joining the team.