skillhub-ai 0.3.0

The skill composer for AI agents — compose, diff, and merge skills from any source with AI-powered conflict resolution

skillhub

There are 50 tools to install AI agent skills. There is exactly one tool that merges them.

skillhub is the skill composer — merge skills from any source across 13 ecosystems (Anthropic, OpenAI, Copilot, Microsoft, Google, Vercel, Agency Agents, and more) into one expert skill, with AI-powered conflict resolution.

pip install skillhub-ai

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The problem

You install 6 skills across Claude Code, Cursor, and Codex. Now you have:

• The same ## When to Use section in 4 different files, all contradicting each other
• A python-patterns skill that conflicts with your CLAUDE.md
• security-review in Claude but not in Cursor
• No way to combine two skills without manually copy-pasting markdown

skillhub solves all of this.

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See what's in two skills before you merge them

skillhub diff python-patterns react-patterns

Section-by-section comparison. Green = unique to A. Yellow = conflict. Blue = unique to B. You know exactly what will happen before you compose.

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Compose — the feature nobody else has built

skillhub compose python-patterns security-review api-design -o fastapi-expert

Three skills become one expert. All sections merged. Conflicts detected and resolved. One file written to your agent.

# In Claude Code:
/fastapi-expert

Your agent now applies Python conventions, OWASP security, and REST best practices in every response — without you prompting for each one.

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AI-powered merge — Claude resolves conflicts intelligently

pip install "skillhub-ai[ai]"        # adds the anthropic SDK
export ANTHROPIC_API_KEY=sk-...

skillhub compose python-patterns security-review -o secure-python --strategy ai

Two strategies:

Strategy	What happens on conflict
first-wins (default)	First skill's section wins, conflict logged
ai	Claude reads both versions and writes a unified best-of-both

When --strategy ai is set, conflicting sections like ## Error Handling from two different skills get merged by Claude into a single, coherent section that preserves the best guidance from both.

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Pre-built expert templates

skillhub templates                                         # list all 5
skillhub compose --template fastapi-expert                 # instant expert
skillhub compose --template fastapi-expert --strategy ai   # with AI merge

Template	Skills inside	What you get
fastapi-expert	python-patterns + security-review + api-design	FastAPI backend expert
fullstack-expert	react-patterns + python-patterns + api-design	Full-stack expert
ml-platform	agent-builder + mle-workflow + llm-evaluator	ML platform engineer
pre-pr-reviewer	code-reviewer + security-review + test-writer	Pre-PR quality gate
research-analyst	research-agent + rag-evaluator + doc-generator	Research analyst

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Compose from any source — every skill ecosystem on GitHub

# Merge an official Anthropic skill with an OpenAI skill and your local standards
skillhub compose anthropic:claude-api openai:aspnet-core ./my-team-standards.md \
  -o cloud-ai-expert

# Mix GitHub Copilot + Microsoft official + Google Cloud skills
skillhub compose copilot:acquire-codebase-knowledge \
  microsoft:skill-creator \
  google:agent-platform-deploy \
  -o enterprise-expert

# Community skills from every corner of GitHub
skillhub compose agency-agents:frontend-developer \
  addyosmani:code-review-and-quality \
  scientific:astropy \
  antigravity:ab-test-setup \
  -o community-expert

# Gamedev skills across all engines
skillhub compose gamedev:godot-best-practices \
  skills.sh:react-expert \
  python-patterns \
  -o gamedev-web-expert

# Use the raw github: escape hatch for anything not yet indexed
skillhub compose github:owner/repo/path/to/SKILL.md python-patterns -o custom-expert

Source prefix	Ecosystem	GitHub repo
name (no prefix)	skillhub registry	chandrudp29/skillhub
anthropic:name	Anthropic official skills	anthropics/skills
openai:name	OpenAI / Codex official skills	openai/skills
copilot:name	GitHub Copilot awesome skills	github/awesome-copilot
microsoft:name	Microsoft official skills	microsoft/skills
google:name	Google official skills	google/skills
skills.sh:name	Vercel skills.sh registry	vercel-labs/skills
agency-agents:name	Agency Agents role personas	msitarzewski/agency-agents
addyosmani:name	Addy Osmani production skills	addyosmani/agent-skills
scientific:name	K-Dense AI scientific skills	K-Dense-AI/scientific-agent-skills
antigravity:name	Antigravity / OpenClaw community	sickn33/antigravity-awesome-skills
gamedev:name	Game Dev skills	gamedev-skills/awesome-gamedev-agent-skills
tech-leads:name	Tech Leads Club validated skills	tech-leads-club/agent-skills
claude:name	Already in your Claude Code project	.claude/commands/
cursor:name	Already in your Cursor project	.cursor/rules/
codex:name	Already in your Codex project	AGENTS.md blocks
gemini:name	Already in your Gemini CLI project	.gemini/skills/
github:owner/repo/path	Any public GitHub file	raw.githubusercontent.com
./path/to/file.md	Local file on disk	—

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Install skills — works for all 4 agents

skillhub install debug-agent                  # Claude Code (default)
skillhub install debug-agent --all-agents     # all 4 agents at once
skillhub install debug-agent --dry-run        # preview before writing

Agent	Install Path
Claude Code	.claude/commands/<name>.md
Cursor	.cursor/rules/<name>.mdc
OpenAI Codex	AGENTS.md (appended with markers)
Gemini CLI	.gemini/skills/<name>.md

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Search and discover

skillhub list                          # browse all 26 skills
skillhub search "security"             # search by keyword
skillhub search "react" --tag ui       # filter by tag
skillhub info debug-agent              # full preview before installing

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Create your own skill

skillhub init our-coding-standards
# → creates our-coding-standards/SKILL.md with template

# Edit it, then:
skillhub install our-coding-standards      # test locally → /our-coding-standards in Claude
skillhub publish our-coding-standards/    # open a PR to add it to the registry

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How compose works

skillhub compose python-patterns security-review api-design -o fastapi-expert
         │
         ▼
┌──────────────────────────────────────────┐
│  Fetch each skill from its source        │
│  registry / skills.sh / GitHub / local   │
└──────────────────────────────────────────┘
         │
         ▼
┌──────────────────────────────────────────┐
│  Parse all ## sections                   │
│  Detect conflicts across skills          │
└──────────────────────────────────────────┘
         │
         ├─── strategy: first-wins ──→  first skill's section kept
         │
         └─── strategy: ai ─────────→  Claude merges both intelligently
         │
         ▼
┌──────────────────────────────────────────┐
│  Write composed skill to agent path      │
│  .claude/commands/fastapi-expert.md      │
│                                          │
│  Updates .claude/skills.json index       │
└──────────────────────────────────────────┘
         │
         ▼
      /fastapi-expert ✓

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Full command reference

Command	What it does
skillhub diff <a> <b>	Compare two skills section by section
skillhub compose <a> <b> -o <name>	Merge skills (first-wins on conflicts)
skillhub compose <a> <b> -o <name> --strategy ai	Merge with Claude AI resolution
skillhub compose --template <name>	Use a pre-built expert template
skillhub templates	List all built-in templates
skillhub search <query>	Search by name, description, or tag
skillhub list	Browse all 26 skills
skillhub list --installed	Show skills installed in this project
skillhub info <name>	Full details and preview
skillhub install <name>	Install for Claude Code
skillhub install <name> --all-agents	Install for all 4 agents
skillhub install <name> --dry-run	Preview without writing files
skillhub install <name> --overwrite	Replace existing installation
skillhub uninstall <name>	Remove a skill
skillhub update	Update all installed skills to latest
skillhub init <name>	Scaffold a new SKILL.md template
skillhub publish <path>	Submit to the registry via GitHub PR

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Available Skills (26)

Research & Analysis

Skill	Description
research-agent	Multi-source deep research with synthesis and citations
rag-evaluator	Evaluate RAG pipelines: faithfulness, relevance, hallucination
llm-evaluator	Build evaluation frameworks for LLM outputs

Code Quality

Skill	Description
code-reviewer	Five-axis code review (correctness, security, performance, readability, maintainability)
debug-agent	Systematic root cause analysis — feedback loop first
refactor-agent	Safe, incremental refactoring with verification
test-writer	Write meaningful tests that actually catch bugs
security-review	OWASP-based security auditing

Documentation

Skill	Description
doc-generator	README, API docs, docstrings, changelogs
pr-summarizer	Generate PR descriptions: what, why, how, risks

Development Patterns

Skill	Description
python-patterns	Modern Python best practices (typing, async, dataclasses)
react-patterns	React 18+ patterns (hooks, suspense, server components)
fastapi-patterns	Production FastAPI patterns
api-design	REST API conventions and best practices
sql-agent	Write, optimize, and explain SQL with query plans

DevOps

Skill	Description
docker-agent	Dockerfile optimization, multi-stage builds
git-workflow	Branching strategies, commit conventions

AI / ML Engineering

Skill	Description
agent-builder	Build LangGraph agents: tools, memory, streaming, multi-agent
prompt-optimizer	Diagnose and improve underperforming prompts
mle-workflow	Production ML workflow: data, training, deployment
cost-tracker	Track and optimize LLM API costs

Career

Skill	Description
yc-job-tracker	Daily AI/ML job tracking at YC startups
career-ops	Global AI/ML job hunt — USA, Europe, Singapore, Dubai

Community (via agency-agents)

Skill	Description
frontend-developer	Senior frontend developer expertise
backend-architect	Senior backend architecture and system design
penetration-tester	Security testing and penetration testing methodology

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Quick start

pip install skillhub-ai

# Browse what's available
skillhub list
skillhub templates

# See what's in two skills before merging
skillhub diff debug-agent code-reviewer

# Compose a pre-built expert (5 templates available)
skillhub compose --template fastapi-expert

# Compose your own
skillhub compose debug-agent code-reviewer -o my-reviewer

# Use AI to resolve conflicts intelligently
pip install "skillhub-ai[ai]"
export ANTHROPIC_API_KEY=sk-...
skillhub compose debug-agent code-reviewer -o my-reviewer --strategy ai

# Pull from any source
skillhub compose skills.sh:react-expert python-patterns -o my-expert

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Cookbook

Copy-paste recipes for the most common workflows → docs/cookbook.md

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Contributing

1. Fork this repo
2. Add your skill under skills/<name>/SKILL.md
3. Add an entry to registry/index.json
4. Open a PR — we review for usefulness, not quantity

Or use the CLI:

skillhub init <name>
# edit the SKILL.md
skillhub publish <name>/

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Author

Built by Chandrashekar DP — Senior AI/ML Engineer.

If skillhub saves you time, a ⭐ helps others find it.

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License

MIT