Why this exists

AI coding agents (Claude Code, Cursor, Codex, Copilot…) got a superpower this year: Skills — small, self-contained instruction packs that teach an agent how to do one thing well (write a spec, review a PR, design an API, run a security audit, format a resume). The problem: they're scattered across hundreds of individual GitHub repos, half-documented, and impossible to search in one place.

This repo fixes that. Every skill-bearing repo in the ecosystem, pulled together, deduplicated, categorized, and made greppable in one file. Whether you're a student who just discovered agent skills exist, or a staff engineer wiring up a fleet of subagents in production — the same catalog works for you.

What's inside

🚀 Quick start

git clone https://github.com/thedixitjain/the-mega-skill-library.git

Pick the path that matches how much you already know:

cp -r the-mega-skill-library/master-skill ~/.claude/skills/master-skill-library

cp -r the-mega-skill-library/library/engineering-core/tdd-guide ~/.claude/skills/

grep -i "pdf" CATALOG.tsv
awk -F'\t' '$2=="security-and-compliance" && $1=="skill"' CATALOG.tsv
grep -i "code review" CATALOG.tsv | awk -F'\t' '$1=="agent"' | cut -f3,6

🗂️ Browse by category

22 categories, auto-sorted by asset count. Click through for the full browsable table of every skill/agent/command/prompt in that category.

Full index with descriptions and navigation: INDEX.md

📁 Repo layout

the-mega-skill-library/
├── INDEX.md                 master index — start here
├── CATALOG.tsv               one row per asset — grep/awk this
├── master-skill/SKILL.md     router skill — install this one, it finds the rest
├── library/<category>/<slug>/SKILL.md    18,681 Agent Skills (+ bundled resources)
├── agents/<category>/<slug>.md           2,888 subagent definitions
├── commands/<category>/<slug>.md         2,773 slash commands
├── prompts/<category>/<slug>.md          10,074 system prompts / corpora
├── rules/<category>/<slug>.md            1,386 CLAUDE.md / AGENTS.md / .cursorrules
├── reference/<owner~repo>/...            543 awesome-lists, cheatsheets, handbooks
├── _index/<category>.md      per-category browsable tables
└── _logs/                    harvest run logs

The raw upstream git clones used to build this (_sources/, ~9 GB, 186 repos) aren't part of this repository — only the curated, deduplicated output above is published. See Refreshing below.

🔎 Provenance, credits & licensing

This is a curated aggregation, not original work. Every skill, agent, command, prompt and rules file was written by its original author — full attribution for all 237 source repositories lives in CREDITS.md, linked directly to each one's GitHub page.

Every single harvested file also carries source_repo, source_path and source_url in its own frontmatter, plus a human-readable Source footer linking upstream — open any file to see exactly where it came from. Duplicates across repos were collapsed by content hash, keeping the most authoritative copy (official vendor repos first, then by star count); collapsed copies are listed in each file's "Also appears in" footer, so nothing is silently lost.

This repo's own layer — the categorization, indexing, catalog, router skill, and documentation — is MIT licensed. The 35,802 harvested files themselves come from 186 different repositories (plus 51 more kept as reference material) under their own original licenses — check the upstream repo (linked in every file's footer, and in CREDITS.md) before redistributing or using an individual file commercially.

🔄 Refreshing / regenerating

The curated buckets here (library/, agents/, commands/, prompts/, rules/, reference/, _index/, CATALOG.tsv) were generated once from local clones of all 186 source repos. To regenerate: re-clone each repo listed in CATALOG.tsv / _index/by-source-repo.md, then re-run a categorize → dedup-by-hash → catalog pipeline against them. See CONTRIBUTING.md if you want to help formalize that pipeline into a script others can run.

🤝 Contributing

Found a skill-bearing repo that isn't here yet? Found a broken path or a duplicate that should've been collapsed? PRs and issues are very welcome — see CONTRIBUTING.md for the frontmatter convention and how to add an entry to CATALOG.tsv.

❓ FAQ

⭐ Support

If this saved you time, star the repo — it's the main way other people find it. Issues, PRs, and "hey you should add X" suggestions are all welcome.