FreeCodeCamp
freeCodeCamp
freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.
EducationSkill source unconfirmed
448.2KGitHub
OPENAGENTSKILL / DIRECTORY
AI Agent Skills
Find a skill for your next task. Explore tools for Codex, Claude Code, Cursor and more.
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Candidates in this shortlist, not the full registry. GitHub stars belong to repositories, not individual skills.
Results: 151
Free Programming Books
EbookFoundation
:books: Freely available programming books
EducationSkill source unconfirmed
390.3KGitHub
System Design Primer
donnemartin
Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.
DesignSkill source unconfirmed
353.4KGitHub
dispatching-parallel-agents
obra
Use when facing 2+ independent tasks that can be worked on without shared state or sequential dependencies
280.4KGitHub
executing-plans
obra
Use when you have a written implementation plan to execute in a separate session with review checkpoints
280.4KGitHub
finishing-a-development-branch
obra
Use when implementation is complete, all tests pass, and you need to decide how to integrate the work
280.4KGitHub
requesting-code-review
obra
Use when completing tasks, implementing major features, or before merging to verify work meets requirements
280.4KGitHub
test-driven-development
obra
Use when implementing any feature or bugfix, before writing implementation code
280.4KGitHub
using-git-worktrees
obra
Use when starting feature work that needs isolation from current workspace or before executing implementation plans - ensures an isolated workspace exists via native too…
280.4KGitHub
using-superpowers
obra
Use when starting any conversation - establishes how to find and use skills, requiring skill invocation before ANY response including clarifying questions
280.4KGitHub
verification-before-completion
obra
Use when about to claim work is complete, fixed, or passing, before committing or creating PRs - requires running verification commands and confirming output before maki…
280.4KGitHub
writing-plans
obra
Use when you have a spec or requirements for a multi-step task, before touching code
280.4KGitHub
259.6KGitHub
257.2KGitHub
coding-standards
affaan-m
Baseline cross-project coding conventions for naming, readability, immutability, and code-quality review. Use detailed frontend or backend skills for framework-specific…
256KGitHub
agent-sort
affaan-m
Build an evidence-backed ECC install plan for a specific repo by sorting skills, commands, rules, hooks, and extras into DAILY vs LIBRARY buckets using parallel repo-awa…
252.3KGitHub
External platform skills
Browse external directory →Owner-curated external sources. Not filtered by the scores or compatibility controls above; excluded from GitHub rankings and automatic installation.
RedSkill · 流白Livo · 1.0.0
p5.js animations: rain, branches & swallows →
Describe a rain curtain, growing flowering branches or a flock of swallows. This RedSkill package adapts three p5.js templates into sketch.js code with custom colors, density and speed.
Noncommercial use only · Local runtime recording · Use on the source platform
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Frontend and UI skills →
Design direction, Figma implementation, UI review, React performance, browser QA, and safe preview deployments.
Coding agent skills →
Code review, repo inspection, testing, planning, shipping, and engineering workflows for coding agents.
Research and RAG skills →
Research, recent-events briefings, PDF parsing, markdown conversion, RAG ingestion, and knowledge workflows.
Finance and trading skills →
Stock analysis, market research, quant backtesting, financial data, and investment research skills.
Web scraping skills →
Crawling, scraping, extraction, browser automation, structured data capture, and website-to-markdown workflows.
PPT and presentation skills →
Presentation generation, editable PPTX, slide decks, speaker notes, and visual storytelling workflows.
Video creation skills →
Video-generation prompts, B-roll, Vox-style explainers, camera direction, captions, and creative-production workflows.
Design and creative skills →
Image, video, creative production, UI design, multimodal generation, and visual workflow skills.