sim: Scale Your AI Workforce with a Central Intelligence Layer
From the repo · “Sim is the collaborative workspace to build, deploy, and monitor AI agents and workflows. Used by 100,000+ builders.”
Build, deploy, and manage AI agents with Sim to automate tasks.
"A founder, Alex, uses Sim to automate onboarding for new customers. She creates a Sim agent that triggers when a new customer signs up on Stripe. The agent adds the customer to Notion and sends a welcome email via Resend. In just a few clicks, Alex saves time and improves the customer experience."
- •When you need to integrate multiple AI models into a single workflow
- •When you want to automate decision-making processes using AI
- •When you require a scalable platform to manage your AI operations
const sim = new Sim({ workflow: 'my_workflow' }); sim.start();Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.
A prompt/skill package — nothing to install beyond adding it to your AI tool.
mkdir -p ~/.claude/skills/sim && curl -fsSL https://workflowstacks.com/api/skills/sim/claude-skill -o ~/.claude/skills/sim/SKILL.mdOpens the app with this repo with the prompt ready to go — no copy-paste needed.
Sim: Scale Your AI Workforce with a Central Intelligence Layer is a very large TypeScript project (~2.7M lines across 15792 code files, plus 126 test files). It is a full software project: use it through its install path rather than reading it end to end. Last commit this month, Apache-2.0 license, has a test suite.
- 1README.mdStart here — what it does and how to install it
- 2AGENTS.mdThe instructions the AI actually follows
- 3package.jsonDependencies and the commands it exposes
- 4apps/sim/blocks/index.tsInside apps/sim/ — the main logic begins here
Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.
A prompt/skill package — nothing to install beyond adding it to your AI tool.
mkdir -p ~/.claude/skills/sim && curl -fsSL https://workflowstacks.com/api/skills/sim/claude-skill -o ~/.claude/skills/sim/SKILL.mdOpens the app with this repo with the prompt ready to go — no copy-paste needed.
Are you the creator of this tool? and earn 85% of every sale.
Show it off in your README:
[](https://workflowstacks.com/skills/sim?utm_source=github&utm_medium=badge)The five fastest-growing open-source AI skills, ranked by GitHub star growth. One email a week, unsubscribe anytime.
Do this with a working workflow
Pages we wrote and tested that put a skill like this to work — importable n8n templates, outcome guides and Claude Desktop configs.
Personalize your cold emails at scale
You keep prospects in a Google Sheet with a note about each. The workflow writes a specific one-line opener per prospect and scores it 1–5, so you can send the strong ones and fix the weak ones.
MCP configGitHub MCP config
Search repos, read code, open issues and PRs from Claude.
Free n8n templateInbox Reply Triage
Classify every incoming email — Hot lead / Needs reply / FYI / Ignore — with a reason and a suggested reply, logged to a ranked sheet so you never miss what matters.
Related skills
More claude-skill tools founders pair with this one.