Get The Claude Code Skills Cheat Sheet
Agent Skills are free, drop-in upgrades that turn Claude Code into a designer, a researcher, a security auditor — even a whole engineering team. I pulled the 10 that feel like cheat codes, verified live on GitHub (2026-06-27), each with what it replaces, the EXACT install command, and an honest read. THE TEN: 1) GStack (garrytan/gstack, 117k stars, MIT) — Garry Tan's (CEO of Y Combinator) exact setup, 23 specialists incl. a reviewer, QA, security officer and release engineer; install: 'git clone --depth 1 https://github.com/garrytan/gstack.git ~/.claude/skills/gstack && cd ~/.claude/skills/gstack && ./setup', then '/review' before any commit. 2) Stop Slop (hardikpandya/stop-slop, 12.7k) — strips AI-writing tells (em-dashes, 'it's not X it's Y'); install: 'git clone https://github.com/hardikpandya/stop-slop ~/.claude/skills/stop-slop', then ask Claude to 'rewrite this with stop-slop'. 3) Graphify (safishamsi/graphify, 72.9k) — turns any folder of code/docs into a queryable knowledge graph (real agent memory); install: 'uv tool install graphifyy && graphify install', then '/graphify .'. 4) Understand Anything (Egonex-AI/Understand-Anything, 68.6k) — interactive map of any codebase; install: '/plugin marketplace add Egonex-AI/Understand-Anything' then '/plugin install understand-anything', use '/understand'. 5) Last 30 Days (mvanhorn/last30days-skill, 47.1k) — real-time Reddit/X/YouTube/HN research ranked by engagement; install: '/plugin marketplace add mvanhorn/last30days-skill', use '/last30days [topic]'. 6) Frontend Design (anthropics/skills, official) — production-grade UI with a real aesthetic direction instead of generic AI look; install: 'npx skills add https://github.com/anthropics/skills --skill frontend-design'. 7) Taste (Leonxlnx/taste-skill, 52k) — generates design variants, critiques them, ships the best; install: 'npx skills add https://github.com/Leonxlnx/taste-skill'. 8) Remotion Superpowers (DojoCodingLabs/remotion-superpowers, new, MIT) — turns Claude into a full video studio (voiceover, music, captions, AI review); install: '/plugin marketplace add DojoCodingLabs/remotion-superpowers', use '/create-video'. 9) Awesome Agent Skills (VoltAgent/awesome-agent-skills, 26.6k) — 1,497+ vetted skills from Anthropic, Stripe, Google in one searchable index; browse the repo, each links its own install. 10) Trail of Bits Security (trailofbits/skills, 5.9k, CC-BY-SA) — 40+ audit skills (static analysis, Semgrep, CodeQL, mutation testing) from a real security firm; install: '/plugin marketplace add trailofbits/skills'. HOW SKILLS WORK (3 steps): add a marketplace ('/plugin marketplace add owner/repo'), install ('/plugin install name', or 'npx skills add <github-url>', or git clone into ~/.claude/skills/), then use it — Claude auto-loads a skill by reading its description. FIRST 3 MOVES: install GStack + Stop Slop + Last 30 Days today; bookmark Awesome Agent Skills to find any skill you need next; run Trail of Bits on your code before you ship. All ten are free and open-source. Full credit to every skill author.
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