# Ninja

> Ninja ultra-fast build system reference. Covers build.ninja syntax, rules, variables, pools, dependency tracking, CMake/Meson/GN generator integration, custom Python generators, CLI commands, performance tips, and Ninja vs Make comparison.

- Skill: `bytesagain/ninja` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add bytesagain/ninja`
- Raw SKILL.md: https://api.skillmd.com/api/skills/bytesagain/ninja/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Integrations & APIs
- Author: bytesagain (https://skillmd.com/u/bytesagain)
- Updated: 2026-09-21
- Page: https://skillmd.com/skills/bytesagain/ninja

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# Ninja Reference

Ultra-fast build system.

## Commands

| Command | Description |
|---------|-------------|
| `intro` | Overview, vs Make |
| `syntax` | build.ninja format |
| `generators` | CMake/Meson/GN, custom |