// Skills & rules
Add skills & rules
Skills, rule files and spec-driven tooling you can reuse across agents.
59 tools59 open sourcechecked 2026-10-22Compare side by side →
How to choose · start with these three
- · Start from official examples (anthropics/skills), then write your AGENTS.md
- · Skills can run commands — read them before installing
59 / 59 items
anthropics/skills ★ 183k Public repository for Agent Skills Open source Skill superpowers v7.0.1 ★ 303k An agentic skills framework & software development methodology that works. Open source addyosmani/agent-skills ★ 109k Production-grade engineering skills for AI coding agents. Open source skills ponytail ★ 172k Makes agents think like the laziest senior engineer and write less code. Open source skills archify ★ 87k Agent skill for verifiable architecture, sequence and data-flow diagrams. Open source skills impeccable ★ 84k Design language that makes AI harnesses better at design. Open source skills ECC ★ 286k Agent harness optimizer with skills, memory, security and research-first workflows. Open source skills hallmark ★ 31k Anti-AI-slop design skill for Claude Code, Cursor and Codex. Open source skills agency-agents ★ 163k A full agency of specialized agents with personalities and deliverables. Open source skills i-have-adhd ★ 57k Forces coding agents to lead with the answer, ADHD-friendly. Open source skills planning-with-files ★ 28k Persistent file-based planning for long-running agentic tasks. Open source skills taste-skill ★ 101k Gives agents better design taste and less generic UI. Open source skills security-audit-skill ★ 37k Coding-agent skill for multi-phase security audits. Open source skills caveman ★ 114k Cuts coding-agent tokens by talking like a caveman. Open source skillsproxy academic-research-skills ★ 53k Academic research skills: research, write, review, revise, finalize. Open source skills humanizer ★ 59k Agent skill that removes signs of AI-generated writing. Open source skills marketingskills ★ 56k Marketing skills for Claude Code: CRO, copy, SEO and analytics. Open source skills no-ai-slop ★ 12k Removes 20+ patterns of AI slop from writing. Open source skills scientific-agent-skills ★ 54k Science skill library that turns agents into research assistants. Open source skills andrej-karpathy-skills ★ 220k CLAUDE.md derived from Karpathy's notes on LLM coding pitfalls. Open source skills last30days-skill ★ 65k Agent skill researching any topic across Reddit, X, YouTube, HN and more. Open source skills cursor/plugins ★ 13k Cursor's official plugin specification and plugins. Open source plugins gstack ★ 137k Garry Tan's Claude Code toolkit for CEO, designer, eng-manager and more roles. Open source skills claude-plugins-official ★ 44k Official Anthropic-managed directory of Claude Code plugins. Open source plugins claude-code-templates ★ 33k CLI for configuring and monitoring Claude Code. Open source CLI openai/skills ★ 28k Skills catalog for Codex. Open source skills BMAD-METHOD ★ 54k Breakthrough Method for Agile AI-Driven Development. Open source skills Anthropic-Cybersecurity-Skills ★ 35k Structured cybersecurity skills mapped to major frameworks. Open source skills wshobson/agents ★ 41k Multi-harness agentic plugin marketplace. Open source plugins obsidian-skills ★ 50k Agent skills for Obsidian CLI and open formats. Open source skills dotnet/skills v1.0.0 ★ 5.7k Skills to assist AI coding agents with .NET and C#. Open source skills vercel-labs/skills ★ 36k Open agent skills tool — install with npx skills. Open source CLI compound-engineering-plugin ★ 26k Official Compound Engineering plugin for Claude Code, Codex, Cursor and more. Open source plugins design.md ★ 28k Format for describing visual identity to coding agents. Open source spec pm-skills ★ 27k PM skills marketplace: 100+ agentic skills, commands and plugins. Open source skills openai/plugins ★ 7.5k OpenAI plugins. Open source plugins text-to-cad ★ 22k Gives coding agents CAD modeling powers. Open source skills google/skills ★ 21k Agent Skills for Google products and technologies. Open source skills claude-seo ★ 20k Universal SEO skill for Claude Code. Open source skills claude-video ★ 19k Gives Claude the ability to watch any video. Open source skills react-doctor ★ 15k Catches bad React written by agents. Open source CLI huggingface/skills ★ 11k Gives agents the power of the Hugging Face ecosystem. Open source skills gentle-ai ★ 7.9k Configures Claude Code, Cursor, OpenCode and other coding agents. Open source CLI stitch-skills ★ 8.5k Agent Skills designed to work with the Stitch MCP server. Open source skills trailofbits/skills ★ 7.7k Trail of Bits Claude Code skills for security research. Open source skills tech-leads-club/agent-skills ★ 7.1k Secure validated skill registry for professional AI coding agents. Open source registry dev-browser ★ 6.7k Claude skill giving your agent a web browser. Open source skills agents-cli ★ 6.1k CLI and skills that turn any coding assistant into an ADK agent expert. Open source CLI lint ★ 3.2k Agent-first linter for Tailwind design systems. Open source CLI gemini-skills ★ 4.3k Skills for the Gemini API, SDK and agent interactions. Open source skills mattpocock/skills ★ 276k Skills for Real Engineers. Straight from my .agents directory. Open source spec-kit ★ 142k 💫 Toolkit to help you get started with SDD or any other process! Open source openspec ★ 71k Spec-driven development (SDD) for AI coding assistants. Open source diagram-design ★ 60k An Agent Skill that has your agent draw architecture, quadrant, sequence and other diagrams (45 types per the README) as one self-contained HTML + SVG file, optionally matching your site’s palette and fonts. Install with npx skills add; works in Claude Code, Codex, Cursor, Copilot, Gemini CLI and more Open source Agentic Awesome Skills (AAS Core) ★ 48k A large community SKILL.md library (2,724+ per the README) with AAS Core — a CLI and local MCP that let Codex / Claude search the full catalog locally, record chosen skills, validate a stack and preview a plan; apply/recovery are still experimental. Not affiliated with Google; review skills before use Open source Awesome GitHub Copilot ★ 40k A community collection in GitHub’s official org: custom agents, instruction files, Agent Skills, hooks, workflows and plugins for GitHub Copilot, with a searchable website, a machine-readable llms.txt and a Learning Hub Open source Knowledge Work Plugins ★ 31k Anthropic’s official open-source role plugins, built for Claude Cowork and compatible with Claude Code: each plugin bundles skills, connectors, slash commands and sub-agents for a job function (productivity, sales, support, product, marketing and more — 11 in the README), meant to be customised to your company’s tools and processes Open source Taskmaster (claude-task-master) ★ 28k A task-management system for AI-driven development that turns a requirements doc into a dependency-aware task list for coding agents to work through; plugs into Cursor, Windsurf, Roo and other editors as an MCP server or CLI, with multiple model providers. Note: last push 2026-04-28, so maintenance pace is unclear Open source Android skills v1.0.16 ★ 9.2k The Android team’s official Agent Skills repo: modular SKILL.md instructions that target Android workflows where LLMs underperform (e.g. R8 analysis, Wear Compose M3); install with the Android CLI (android skills add) for Gemini / Antigravity, or as a plugin in Claude Code and Codex Open source
About this data
- Default order is “recommended”: editorial picks first, then by popularity; general-purpose developer software and archived projects are listed last.
- Data checked 2026-10-22. Official links only. JSON API