Claude Skills Library

86 production-ready skill packages for Claude Code, OpenAI Codex, and OpenClaw — reusable expertise bundles that transform AI 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.

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What Is This?

Skills are modular instruction packages that give AI 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 with Claude Code, OpenAI Codex, and OpenClaw.

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Quick Install

Claude Code (Recommended)

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

# Install by domain
/plugin install engineering-skills@claude-code-skills          # 21 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             # 7 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               # 2 C-level advisory
/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 content-creator@claude-code-skills              # Single skill

OpenAI Codex

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

OpenClaw

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

Manual Installation

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

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Skills Overview

86 skills across 9 domains:

Domain	Skills	Highlights	Details
🔧 Engineering — Core	21	Architecture, frontend, backend, fullstack, QA, DevOps, SecOps, AI/ML, data	engineering-team/
⚡ Engineering — POWERFUL	25	Agent designer, RAG architect, database designer, CI/CD builder, security auditor, MCP builder	engineering/
🎯 Product	8	Product manager, agile PO, strategist, UX researcher, UI design, landing pages, SaaS scaffolder	product-team/
📣 Marketing	7	Content creator, demand gen, PMM strategy, ASO, social media, campaign analytics, prompt engineering	marketing-skill/
📋 Project Management	6	Senior PM, scrum master, Jira, Confluence, Atlassian admin, templates	project-management/
🏥 Regulatory & QM	12	ISO 13485, MDR 2017/745, FDA, ISO 27001, GDPR, CAPA, risk management	ra-qm-team/
💼 C-Level Advisory	2	CEO advisor, CTO advisor	c-level-advisor/
📈 Business & Growth	4	Customer success, sales engineer, revenue ops, contracts & proposals	business-growth/
💰 Finance	1	Financial analyst (DCF, budgeting, forecasting)	finance/

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⚡ POWERFUL Tier

25 advanced skills with deep, production-grade capabilities:

Skill	What It Does
agent-designer	Multi-agent orchestration, tool schemas, performance evaluation
agent-workflow-designer	Sequential, parallel, router, orchestrator, and evaluator patterns
rag-architect	RAG pipeline builder, chunking optimizer, retrieval evaluator
database-designer	Schema analyzer, ERD generation, index optimizer, migration generator
database-schema-designer	Requirements → migrations, types, seed data, RLS policies
migration-architect	Migration planner, compatibility checker, rollback generator
skill-security-auditor	🔒 Security gate — scan skills for malicious code before installation
ci-cd-pipeline-builder	Analyze stack → generate GitHub Actions / GitLab CI configs
mcp-server-builder	Build MCP servers from OpenAPI specs
pr-review-expert	Blast radius analysis, security scan, coverage delta
api-design-reviewer	REST API linter, breaking change detector, design scorecard
api-test-suite-builder	Scan API routes → generate complete test suites
dependency-auditor	Multi-language scanner, license compliance, upgrade planner
release-manager	Changelog generator, semantic version bumper, readiness checker
observability-designer	SLO designer, alert optimizer, dashboard generator
performance-profiler	Node/Python/Go profiling, bundle analysis, load testing
monorepo-navigator	Turborepo/Nx/pnpm workspace management & impact analysis
changelog-generator	Conventional commits → structured changelogs
codebase-onboarding	Auto-generate onboarding docs from codebase analysis
runbook-generator	Codebase → operational runbooks with commands
git-worktree-manager	Parallel dev with port isolation, env sync
env-secrets-manager	.env management, leak detection, rotation workflows
incident-commander	Incident response playbook, severity classifier, PIR generator
tech-debt-tracker	Codebase debt scanner, prioritizer, trend dashboard
interview-system-designer	Interview loop designer, question bank, calibrator

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🔒 Skill Security Auditor

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.

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Recently Enhanced Skills

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.

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Usage Examples

Architecture Review

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

Content Creation

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

Compliance Audit

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

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Python Analysis Tools

92+ 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/

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Related Projects

Project	Description
Claude Code Skills & Agents Factory	Methodology for building skills at scale
Claude Code Tresor	Productivity toolkit with 60+ prompt templates

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Contributing

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

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License

MIT — see LICENSE for details.

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Star History

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Built by Alireza Rezvani · Medium · Twitter