🧠 massgen/skills

March 10, 2026 · View on GitHub

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

⚡ Install

npx skills add massgen/skills --all

That'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 windsurf

See 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.

📋 What's Included

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

💡 Before You Start

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., claude or codex login)
A config file: Run massgen --quickstart to create .massgen/config.yaml

Note: First-time setup requires human input (provider selection, API keys). After that, the skill runs autonomously.

🔄 Updating

npx skills update

This repo is automatically synced from the main MassGen repository on every merge to main.

📄 License

Apache 2.0 — see LICENSE for details.