* fix(provenance): name the importer that condemned a run A bundle that arrives already incomplete latches the whole registry one-way, so every later model projection in the run refuses. #6483 made the refusal say what went wrong; it could not say who. In production the answer was reason=source-provenance-incomplete with 23 candidate importers and no way to tell them apart, which is where the last investigation stopped. Carry a stable origin across the import boundary and retain it beside the reason. It inherits through forks and merges — the step that erased attribution before, since a tool crossing forks, imports, then merges back — so the refusal names the importer even though the latch happened frames earlier. Tool crossings take the tool id, so a tool-sourced bundle identifies itself rather than being inferred from timestamps. Origins are caller-supplied strings rather than a closed union, so unlike reasons they carry an explicit bound. No behaviour change: the field is optional, additive, and read only when building a log record. * fix(provenance): attribute the path-scoped and short-circuit latches too importProvenanceForValueAtInputPath took only { trusted }, so the five callers that bind a crossing to an input path — the block, loop, parallel and workflow resolvers, and the guardrails route — could not name themselves. Separately, six latches sit beside a tagged import on the path where the import did not run or returned false: a bundle already marked incomplete short-circuits the || before the import, and each catch latches directly. Those reported no origin while their neighbour reported one. * fix(provenance): stop a broad catch claiming an incomplete bundle The catch around table-row provenance loading also covers a database failure in loadTableRowSecretProvenance, which is not an incomplete bundle. Naming a reason the catch cannot know is the misattribution this work exists to remove, so it reports 'unspecified' with its origin, matching every sibling catch. The decrypt catch keeps its specific reason because its try wraps only the decrypt call.
A workspace to build, deploy and manage AI agents and workflows.
Quickstart
Cloud-hosted: sim.ai
Self-hosted
git clone https://github.com/simstudioai/sim.git && cd sim
bun install
bun run setup
Capabilities
- Connect 1,000+ integrations and every major LLM
- Add Slack, Notion, HubSpot, Salesforce, databases, and more
- Build agents visually, conversationally, or with code
- Ingest files, knowledge bases, and structured table data
- Monitor runs, logs, schedules, and workflow activity
One workspace, every surface
Chat and workflows are just the start — tables, files, and knowledge all live in the same workspace.
Tables — a database, built in |
Files — one store for your team and every agent |
Knowledge — your agents' memory |
Self-hosting
bun run setup is an interactive wizard: it provisions the database, generates secrets, writes your .env files, connects a Chat API key, and starts Sim the way you choose:
- Local dev — run from source to contribute or hack on Sim
- Docker Compose — a self-contained instance for testing self-hosting
- Kubernetes (Helm) — deploy to a local cluster
When it finishes, open http://localhost:3000.
Reconfigure an optional capability without rerunning the full wizard:
bun run setup status
bun run setup email
bun run setup storage
bun run setup sandbox
bun run setup jobs
bun run setup cache
bun run setup knowledge
bun run setup llm
bun run setup integration slack
bun run setup status detects the effective local-dev, Docker Compose, or current-context
Helm configuration and reports configured, missing, or invalid capabilities and OAuth
integrations without printing credential values. This is separate from bun run sim status,
which reports whether installed services are running and healthy.
Manage your install with bun run sim:
bun run sim start | stop | restart # bring your install up / down / cycle
bun run sim status # what's installed and healthy
bun run sim logs # follow logs
bun run sim doctor # diagnose configuration problems
bun run sim down # remove containers (data kept)
bun run sim reset # archive .env and wipe managed data
sim detects how you're running (Docker Compose, local dev, or Kubernetes) and acts accordingly.
Prefer a bare sim? Run bun link once — but note sim lands in ~/.bun/bin, which Homebrew's bun doesn't add to your PATH, so you may need export PATH="$HOME/.bun/bin:$PATH" in your shell profile.
Sim also supports local models via Ollama and vLLM. See the self-hosting docs for details.
Chat API Keys
Chat is a Sim-managed service. bun run setup connects a Chat API key for you — sign in when it opens your browser and the key is stored automatically. To view, create, or revoke keys later, go to sim.ai/selfhost/settings/chat-keys.
Environment Variables
See the environment variables reference for the full list, or apps/sim/.env.example for defaults.
Tech Stack
Next.js · Bun · PostgreSQL · Drizzle · Better Auth · Tailwind — and the rest of the stack
- Framework: Next.js (App Router)
- Runtime: Bun
- Database: PostgreSQL with Drizzle ORM
- Authentication: Better Auth
- Schema Validation: Zod
- UI: Shadcn, Tailwind CSS
- Streaming Markdown: Streamdown
- State Management: Zustand, TanStack Query
- Flow Editor: ReactFlow
- Docs: Fumadocs
- Monorepo: Turborepo
- Realtime: Socket.io
- Background Jobs: Trigger.dev
- Remote Code Execution: E2B
- Isolated Code Execution: isolated-vm
Contributing
We welcome contributions! Please see our Contributing Guide for details.
License
This project is licensed under the Apache License 2.0 - see the LICENSE file for details.




