169 production-ready skills and plugins for Claude Code, OpenAI Codex, and OpenClaw — reusable expertise bundles that transform AI coding agents into specialized professionals across engineering, product, marketing, compliance, and more.

⭐ 2,300+ GitHub stars — the most comprehensive open-source skill library for AI coding agents.

Skills are modular instruction packages (plugins) that give AI coding agents domain expertise they don't have out of the box. Each skill includes a SKILL.md (instructions + workflows), Python CLI tools, and reference documentation — everything the agent needs to perform like a specialist.

One repo, three platforms: Works natively as Claude Code plugins, OpenAI Codex agents, and OpenClaw skills.

# Add the marketplace
/plugin marketplace add alirezarezvani/claude-skills

# Install by domain
/plugin install engineering-skills@claude-code-skills          # 23 core engineering
/plugin install engineering-advanced-skills@claude-code-skills  # 25 POWERFUL-tier
/plugin install product-skills@claude-code-skills               # 8 product skills
/plugin install marketing-skills@claude-code-skills             # 42 marketing skills
/plugin install ra-qm-skills@claude-code-skills                 # 12 regulatory/quality
/plugin install pm-skills@claude-code-skills                    # 6 project management
/plugin install c-level-skills@claude-code-skills               # 28 C-level advisory (full C-suite)
/plugin install business-growth-skills@claude-code-skills       # 4 business & growth
/plugin install finance-skills@claude-code-skills               # 1 finance

# Or install individual skills
/plugin install skill-security-auditor@claude-code-skills       # Security scanner
/plugin install playwright-pro@claude-code-skills                  # Playwright testing toolkit
/plugin install self-improving-agent@claude-code-skills         # Auto-memory curation
/plugin install content-creator@claude-code-skills              # Single skill

npx agent-skills-cli add alirezarezvani/claude-skills --agent codex
# Or: git clone + ./scripts/codex-install.sh

bash <(curl -s https://raw.githubusercontent.com/alirezarezvani/claude-skills/main/scripts/openclaw-install.sh)

git clone https://github.com/alirezarezvani/claude-skills.git
# Copy any skill folder to ~/.claude/skills/ (Claude Code) or ~/.codex/skills/ (Codex)

169 skills across 9 domains:

25 advanced skills with deep, production-grade capabilities:

New in v2.0.0 — audit any skill for security risks before installation:

python3 engineering/skill-security-auditor/scripts/skill_security_auditor.py /path/to/skill/

Scans for: command injection, code execution, data exfiltration, prompt injection, dependency supply chain risks, privilege escalation. Returns PASS / WARN / FAIL with remediation guidance.

Zero dependencies. Works anywhere Python runs.

Production-quality upgrades added for:

• engineering/git-worktree-manager — worktree lifecycle + cleanup automation scripts
• engineering/mcp-server-builder — OpenAPI -> MCP scaffold + manifest validator
• engineering/changelog-generator — release note generator + conventional commit linter
• engineering/ci-cd-pipeline-builder — stack detector + pipeline generator
• marketing-skill/prompt-engineer-toolkit — prompt A/B tester + prompt version/diff manager

Each now ships with scripts/, extracted references/, and a usage-focused README.md.

Using the senior-architect skill, review our microservices architecture
and identify the top 3 scalability risks.

Using the content-creator skill, write a blog post about AI-augmented
development. Optimize for SEO targeting "Claude Code tutorial".

Using the mdr-745-specialist skill, review our technical documentation
for MDR Annex II compliance gaps.

160+ CLI tools ship with the skills:

# Brand voice analysis
python3 marketing-skill/content-creator/scripts/brand_voice_analyzer.py article.txt

# Tech debt scoring
python3 c-level-advisor/cto-advisor/scripts/tech_debt_analyzer.py /path/to/codebase

# RICE prioritization
python3 product-team/product-manager-toolkit/scripts/rice_prioritizer.py features.csv

# Security audit
python3 engineering/skill-security-auditor/scripts/skill_security_auditor.py /path/to/skill/

How do I install Claude Code plugins? Add the marketplace with /plugin marketplace add alirezarezvani/claude-skills, then install any skill bundle with /plugin install <name>@claude-code-skills.

Do these skills work with OpenAI Codex? Yes. Skills work natively with Claude Code, OpenAI Codex, and OpenClaw. See Quick Install above.

Are the Python tools dependency-free? Yes. All 160+ Python CLI tools use the standard library only — zero pip installs required.

How do I create my own Claude Code skill? Each skill is a folder with a SKILL.md (frontmatter + instructions), optional scripts/, references/, and assets/. See the Skills & Agents Factory for a step-by-step guide.

We welcome contributions! See CONTRIBUTING.md for guidelines.

Quick ideas:

• Add new skills in underserved domains
• Improve existing Python tools
• Add test coverage for scripts
• Translate skills for non-English markets

MIT — see LICENSE for details.

Built by Alireza Rezvani · Medium · Twitter