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Agent skills directory

Codex Skills

Open-source skills whose authors mention OpenAI Codex. Many SKILL.md-based skills follow the same open Agent Skills format, so check each repo's README for Codex-specific setup.

252 repositories · ranked by GitHub stars · updated daily

Agent

Codex Skills

product-on-purpose /

pm-skills
796

68 plug-and-play, best-practice product management skills for AI agents: 30 Triple Diamond phase + 11 foundation + 12 utility + 15 tool (Foundation Sprint + Design Sprint). Plus 6 sub-agents, workflows, 200+ output samples, guides, and CI-enforced contracts. Apache 2.0.

CCCX40 skills

ReflexioAI /

claude-smart
793

Turns corrections into Preferences, Project-specific skills, and Shared skills for Claude Code, Codex, and OpenCode.

CCCXOC1 skill

kitfunso /

hippo-memory
791

Stop re-teaching your agent. Make your agent's memory work like a brain. Hippo is long-term memory for coding agents. It's a critical layer for your AI harness that connects across your different tools (Cursor, Claude Code, Codex). Local-first. Measured: about half the repeat mistakes of built-in memory alone, at the same cost.

CCCXCUOC1 skill

LinklyAI /

best-skills
759

Daily-updated Top 100 Agent Skills rankings — installs, growth, and social buzz aggregated from skills.sh, ClawHub, Tencent SkillHub, GitHub, X and 10+ communities. Open data (CSV).

CCCX1 skill

AmazingAng /

old-coder
758

An old coder's strategy for the agent era: don't read the code — make it run the gauntlet. Evidence-first development skill for coding agents, inspired by Uncle Bob.

CCCXCU2 skills

JayPokale /

Chisle
754

Cut your AI coding agent's token bill on three axes: terse prose, YAGNI-first code, and tool-output compression. Claude Code, Pi, Cursor, Codex, Gemini + 4 more. Zero deps, published benchmarks including the runs it loses.

CCCXCUGH+14 skills

LifelongLazyLearner /

qu-ai-wei
744

去 AI 味:去除简体中文 AI 写作痕迹 / Chinese humanizer skill

CCCXCUOC1 skill

Illyism /

seo-skills
736

SEO skills for Claude Code, Cursor and Codex: SEO autopilot, title tags, blog refreshes, backlinks, customer journeys, video transcripts and copywriting.

CCCXCU12 skills

Looking for something else? Browse the full agent skills directory.

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