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Codex
Best Practices Skills

Install 1000+ verified expert frameworks into Codex — engineering, law, medicine, finance, and 26 domains. Free and open-source.

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Installation

Install Grimoire for Codex

curl -fsSL https://raw.githubusercontent.com/jeffreytse/grimoire/main/scripts/install.sh | bash
grimoire update
grimoire install --target codex

Auto-detects Codex and installs to ~/.agents/skills/.

Skills install to ~/.agents/skills/ — Codex loads them automatically.

Coverage

1000+ Skills Across 27 Domains

Every skill is sourced from peer-reviewed research, professional standards, or industry consensus — not generic advice.

Engineering
Law
Finance
Writing
Design
Marketing
Health
Psychology
Science
Education
Business
Cooking
Travel
Home
Parenting
Automotive
Pets
Fashion
Environment
Photography
Productivity
Art
Music
Film
Sports
Language
Meta

FAQ

Codex + Grimoire

Where does Grimoire install skills for Codex?

Skills are installed to ~/.agents/skills/. Codex CLI reads AGENTS.md and skills from this directory automatically on startup.

Does Grimoire auto-detect Codex?

Yes. The grimoire install script checks for the codex binary and installs to ~/.agents/skills/ automatically when Codex is detected.

Can I install only engineering skills for Codex?

Yes. Run grimoire --domain engineering --target codex to install only the engineering domain.

Does Grimoire work with all Codex versions?

Yes. Grimoire uses the AGENTS.md standard which Codex CLI supports from v0.1.0 onwards.

Also supports

Grimoire works with every AI assistant

🤖 Claude Code 💻 Codex 🔷 Gemini CLI 🐙 Copilot 🔵 OpenCode 🦞 OpenClaw ▲ Cursor 🚀 Antigravity

Or install to all agents at once: grimoire install --target all