Give Claude a Whole Engineering Team: Set Up ECC (281K Stars)
ECC is a free, open-source add-on for Claude Code with 71 agents and 311 skills that make Claude plan first, write tests and review its own work. How to install it in two commands, which parts to switch on, and the one catch to watch
ECC is an open-source Claude Code add-on with over 280,000 stars on GitHub. It turns Claude from one coder into a small team with a set routine: plan, test, build, review, verify, remember.
Here's what you get, how to install it, which parts to turn on, and the catch.
What you get
| Part | What it does |
|---|---|
| 71 agents | Specialists for planning, code review, fixing broken builds, security and architecture |
| 311 skills | Ready routines: test-driven development, research, security reviews, docs, frontend and more |
| Hooks and memory | Session summaries and lessons Claude keeps between sessions |
| AgentShield | Scans your prompts, hooks, MCP config and files for secrets and risky settings |
The routine it gives Claude: plan, then test, then build, then review its own work from a fresh context.
Free, for your email
Get the full setup steps + the copy-paste setup prompt
The rest of this guide (4 more sections, 1 copy-paste prompt) opens right here. The setup prompt, one paste into Claude that sets it all up, comes by email only. Use your real address.
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