MassGen is a multi-agent system that coordinates multiple AI agents to solve complex tasks through parallel processing, iterative refinement, and consensus voting.
These are the official Agent Skills for MassGen — install them to invoke MassGen directly from your AI coding agent. Built on the open Agent Skills standard. Write once, use everywhere.
📖 Documentation · 🚀 MassGen · 💬 Discord
npx skills add massgen/skills --allThat's it. Works with Claude Code, Cursor, Codex, Windsurf, GitHub Copilot, Gemini CLI, Goose, Amp, and 40+ other agents.
To install to a specific agent only:
npx skills add massgen/skills -a claude-code
npx skills add massgen/skills -a codex
npx skills add massgen/skills -a cursor
npx skills add massgen/skills -a copilot
npx skills add massgen/skills -a gemini-cli
npx skills add massgen/skills -a windsurfSee Vercel's skills docs for more on the npx skills CLI.
Manual install (any agent)
git clone https://github.com/massgen/skills.git /tmp/massgen-skills
cp -r /tmp/massgen-skills/massgen ~/.claude/skills/massgen # or ~/.codex/skills/, ~/.agents/skills/, etc.The MassGen skill gives your agent four modes:
| Mode | Purpose | Output |
|---|---|---|
| 🎯 General (default) | Any task — writing, code, research, design | Winner's deliverables + workspace files |
| 🔍 Evaluate | Critique existing work | critique_packet.md, verdict.json, next_tasks.json |
| 📐 Plan | Create structured project plans | project_plan.json with task DAG |
| 📝 Spec | Create requirements specifications | project_spec.json with EARS requirements |
The skill will walk you through setup if needed, but things go smoother if you already have:
- MassGen installed:
pip install massgen - An AI provider authenticated: API key (e.g.,
OPENAI_API_KEY) or login-based auth (e.g.,claudeorcodexlogin) - A config file: Run
massgen --quickstartto create.massgen/config.yaml
Note: First-time setup requires human input (provider selection, API keys). After that, the skill runs autonomously.
npx skills updateThis repo is automatically synced from the main MassGen repository on every merge to main.
Apache 2.0 — see LICENSE for details.
