* fix(tables): resource-cell icons, embedded filters, run-count + queued fixes
- table-grid: render in-workspace resource URLs (workflow/table/KB/file) as
tagged-resource cells reusing ContextMentionIcon (colored square for
workflows), matching @-mention chips; only the matching list is fetched.
- table-grid: fix row-number sticky cell overflow — reserve the full run/stop
button area (30px, not 16px) so wide row indices don't clip.
- table-grid: show an infinite-scroll loading spinner while the next page
loads instead of looking like the end of the table.
- table: surface sort + filter (and run/stop via the options-bar extras slot)
in the embedded mothership table resource view.
- table-grid/utils: stop the dispatch overlay from optimistically painting
autoRun=false cells Queued for auto-fire dispatches — the dispatcher skips
those groups ('autoRun-off'); manual runs still show Queued (manual-bypass).
- dispatcher: exclude orphan pre-stamps (pending + executionId null) from
countRunningCells so the "X running" badge doesn't stick above zero.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* fix(tables): single run/stop control, right-aligned row numbers, View-execution guard
- table: de-duplicate the run/stop control in the embedded mothership view —
drop TableGrid's own embedded run-status bar; it now lives only in the
options bar (left-aligned next to Filter + Sort). Removes the orphaned
RunStatusControl import + onStopAll/cancelRunsPending props.
- data-row: right-align the row number within its box (hugs the right edge,
no hover position jump) with a scaled right inset — 2px for ≤3-digit
indices, 4px for 4+ so narrow columns don't look over-padded.
- table-grid: require a real executionId in the action bar's canViewExecution
flag so an error that never produced an execution (enqueue failure →
status 'error', executionId null) doesn't offer "View execution".
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* fix(tables): address review — drizzle operators for orphan filter, enabled flag for files query
- dispatcher: replace the `not(and(...)) as SQL` cast in countRunningCells with
`or(ne(status,'pending'), isNotNull(executionId))` — De Morgan equivalent,
fully type-checked, no cast and no hand-written raw SQL.
- workspace-files: add an `enabled` option to useWorkspaceFiles; sim-resource
cell now passes the real workspaceId with `enabled` instead of '' so the
query cache isn't polluted with an empty-key entry.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* fix(tables): "X running" badge counts actual in-flight cells, not dispatch scope
The badge derived from `runningCellCount` (the dispatch-scope estimate =
rows-ahead × groupCount), which over-counts groups that already finished on
rows still inside a dispatch's scope — a cascade where 3 of 4 workflow columns
completed read "4 running" instead of "1". Derive `totalRunning` from the live
`runningByRowId` map instead (the same per-row source the gutter and action-bar
selection already sum), so it reflects cells actually in flight and updates
per-cell via SSE rather than only on dispatch-window events.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The open-source platform to build AI agents and run your agentic workforce. Connect 1,000+ integrations and LLMs to orchestrate agentic workflows.
Build Workflows with Ease
Design agent workflows visually on a canvas—connect agents, tools, and blocks, then run them instantly.
Supercharge with Copilot
Leverage Copilot to generate nodes, fix errors, and iterate on flows directly from natural language.
Integrate Vector Databases
Upload documents to a vector store and let agents answer questions grounded in your specific content.
Quickstart
Cloud-hosted: sim.ai
Self-hosted: NPM Package
npx simstudio
Note
Docker must be installed and running on your machine.
Options
| Flag | Description |
|---|---|
-p, --port <port> |
Port to run Sim on (default 3000) |
--no-pull |
Skip pulling latest Docker images |
Self-hosted: Docker Compose
git clone https://github.com/simstudioai/sim.git && cd sim
docker compose -f docker-compose.prod.yml up -d
Sim also supports local models via Ollama and vLLM — see the Docker self-hosting docs for setup details.
Self-hosted: Manual Setup
Requirements: Bun, Node.js v20+, PostgreSQL 12+ with pgvector
- Clone and install:
git clone https://github.com/simstudioai/sim.git
cd sim
bun install
bun run prepare # Set up pre-commit hooks
- Set up PostgreSQL with pgvector:
docker run --name simstudio-db -e POSTGRES_PASSWORD=your_password -e POSTGRES_DB=simstudio -p 5432:5432 -d pgvector/pgvector:pg17
Or install manually via the pgvector guide.
- Configure environment:
cp apps/sim/.env.example apps/sim/.env
# Create your secrets
perl -i -pe "s/your_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_internal_api_secret/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_api_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
# DB configs for migration
cp packages/db/.env.example packages/db/.env
# Edit both .env files to set DATABASE_URL="postgresql://postgres:your_password@localhost:5432/simstudio"
- Run migrations:
cd packages/db && bun run db:migrate
- Start development servers:
bun run dev:full # Starts Next.js app and realtime socket server
Or run separately: bun run dev (Next.js) and cd apps/sim && bun run dev:sockets (realtime).
Copilot API Keys
Copilot is a Sim-managed service. To use Copilot on a self-hosted instance:
- Go to https://sim.ai → Settings → Copilot and generate a Copilot API key
- Set
COPILOT_API_KEYenvironment variable in your self-hosted apps/sim/.env file to that value
Environment Variables
See the environment variables reference for the full list, or apps/sim/.env.example for defaults.
Tech 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.
Made with ❤️ by the Sim Team


