WaleedandClaude Opus 4.6
3d6660ba4d
* fix(security): resolve ReDoS vulnerability in function execute tag pattern Simplified regex to eliminate overlapping quantifiers that caused exponential backtracking on malformed input without closing delimiter. * feat(jira): support raw ADF document objects in description and environment fields Add toAdf() helper that passes through ADF objects as-is or wraps plain text in a single-paragraph ADF doc. Update write and update routes to use it, replacing inline ADF wrapping. Update Zod schema to accept string or object for description. Fully backward compatible — plain text still works, but callers can now pass rich ADF with expand nodes, tables, code blocks, etc. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fix(jira): handle partial ADF nodes and non-ADF objects in toAdf() Wrap partial ADF nodes (type + content but not doc) in a doc envelope. Fall back to JSON.stringify for non-ADF objects instead of String() which produces [object Object]. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * lint * fix(jira): handle JSON-stringified ADF in toAdf() for variable resolution The executor's formatValueForBlock() JSON.stringify's object values when resolving <Block.output> references. This means an ADF object from an upstream Agent block arrives at the route as a JSON string. toAdf() now detects JSON strings containing valid ADF documents or nodes and parses them back, ensuring rich formatting is preserved through the pipeline. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * lint changes * fix(jira): update environment Zod schema to accept ADF objects Match the description field schema change — environment also passes through toAdf() so its Zod schema must accept objects too. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * updated lobkc --------- Co-authored-by: Claude Opus 4.6 <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.
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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
- UI: Shadcn, Tailwind CSS
- State Management: Zustand
- Flow Editor: ReactFlow
- Docs: Fumadocs
- Monorepo: Turborepo
- Realtime: Socket.io
- Background Jobs: Trigger.dev
- Remote Code Execution: E2B
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