AGENTS.md Generator Skill

Netresearch AI skill for generating and maintaining AGENTS.md files following the agents.md specification.

What is AGENTS.md? A context file written for AI coding agents, not humans. Human readability is a side effect, not a goal. Adopted by 60,000+ open-source projects. See the official specification and best practices from 2,500+ repositories.

Standards Compliance

This skill implements two complementary standards:

1. agents.md - The file format this skill generates. A simple Markdown convention for guiding AI coding agents, supported by Claude Code, GitHub Copilot, Cursor, and 60,000+ open-source projects.

2. Agent Skills - How this skill is packaged and distributed. A portable format for procedural knowledge that works across AI agents.

Supported Platforms:

• ✅ Claude Code (Anthropic)
• ✅ Cursor
• ✅ GitHub Copilot
• ✅ Other skills-compatible AI agents

Features

• Thin Root Files - ~30 lines with precedence rules and global defaults
• Scoped Files - Automatic subsystem detection (backend/, frontend/, internal/, cmd/)
• Auto-Extraction - Commands from Makefile, package.json, composer.json, go.mod
• Multi-Language - Templates for Go, PHP, TypeScript, Python, and hybrid projects
• Idempotent Updates - Preserve existing structure while refreshing content
• Managed Headers - Mark files as agent-maintained with timestamps

Installation

Marketplace (Recommended)

Add the Netresearch marketplace once, then browse and install skills:

# Claude Code
/plugin marketplace add netresearch/claude-code-marketplace

npx (skills.sh)

Install with any Agent Skills-compatible agent:

npx skills add https://github.com/netresearch/agent-rules-skill --skill agent-rules

Download Release

Download the latest release and extract to your agent's skills directory.

Git Clone

git clone https://github.com/netresearch/agent-rules-skill.git

Composer (PHP Projects)

composer require netresearch/agent-rules-skill

Requires netresearch/composer-agent-skill-plugin.

npm (Node Projects)

npm install --save-dev \
  @netresearch/agent-skill-coordinator \
  github:netresearch/agent-rules-skill

Requires @netresearch/agent-skill-coordinator, which discovers the skill in node_modules and registers it in AGENTS.md via a postinstall hook. For pnpm, also allowlist the coordinator's postinstall:

{
  "pnpm": {
    "onlyBuiltDependencies": ["@netresearch/agent-skill-coordinator"]
  }
}

Usage

The skill triggers on keywords like:

• "AGENTS.md", "agents file"
• "agent documentation", "AI onboarding"
• "project context for AI"

Example Prompts

"Generate AGENTS.md for this project"
"Update the agents documentation"
"Create scoped AGENTS.md files for each subsystem"
"Validate AGENTS.md structure"

Supported Projects

| Type | Detection | Features | |------|-----------|----------| | Go | go.mod | Version extraction, CLI tool detection | | PHP | composer.json | TYPO3/Laravel/Symfony detection | | TypeScript | package.json | React/Next.js/Vue/Express detection | | Python | pyproject.toml | Poetry/Ruff/Django/Flask detection | | Hybrid | Multiple markers | Auto-creates scoped files per stack |

Structure

agents/
├── SKILL.md              # AI instructions
├── README.md             # This file
├── LICENSE-MIT           # Code license (MIT)
├── LICENSE-CC-BY-SA-4.0  # Content license (CC-BY-SA-4.0)
├── composer.json         # PHP distribution
├── references/           # Convention documentation
├── scripts/              # Generator scripts
│   ├── generate-agents.sh
│   ├── validate-structure.sh
│   └── detect-scopes.sh
└── templates/            # Language-specific templates
    ├── go/
    ├── php/
    ├── typescript/
    └── python/

Contributing

Contributions welcome! Please submit PRs for:

• Additional language templates
• Detection signal improvements
• Script enhancements
• Documentation updates

License

This project uses split licensing:

• Code (scripts, workflows, configs): MIT
• Content (skill definitions, documentation, references): CC-BY-SA-4.0

See the individual license files for full terms.

Credits

Developed and maintained by Netresearch DTT GmbH.

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