Agent Skills tools for Claude / Anthropic

MIT source for the reverse-engineer-anything skill - evidence-led native, managed, JavaScript/Electron, packaged, and browser investigations with explicit provider limits

by Jesse Vincent - A strong bundle of core competencies for software engineering, with good coverage of a large portion of the SDLC - from planning, reviewing, testing, debugging... Well written, well organized, and adaptable. The author refers to them as "superpowers", but many of them are just consolidating engineering best practices - which sometimes does feel like a superpower when working wit

Source for 17 Matt Pocock workflow skills - codebase design, TDD, bug diagnosis, triage, PRDs, issues, prototyping, handoff, teaching, and skill-writing guidance (MIT)

by Affaan Mustafa - Top-notch, well-written resources covering "just about everything" from core engineering domains. What's nice about this "everything-" store is most of the resources have significant standalone value and unlike some all-encompassing frameworks, although you can opt in to the author's own specific workflow patterns if you choose, the individual resources offer exemplary patterns

by multica-ai - A drop-in CLAUDE.md distilling four behavioral guidelines for LLM-assisted coding into Claude Code — a low-friction quick win. Karpathy-inspired, derived from Andrej Karpathy's public notes on LLM coding pitfalls and authored by multica-ai

by Anthropic - Anthropic's official repository for Agent Skills — the SKILL.md format, a skill template, and example skills, the same format Claude Code loads natively

Skill that makes coding agents behave like a "lazy senior dev": prefer built-in solutions, avoid new dependencies, and write the minimum code that works. Benchmarked on real Claude Code sessions with ~54% fewer lines, ~20% lower cost, and preserved safety guards — a rare harness-level incentive that fights over-engineering rather than just adding capability

(91.5k ⭐) - An AI SKILL that provide design intelligence for building professional UI/UX multiple platforms

(67.0k ⭐) - AI coding assistant skill (Claude Code, Codex, OpenCode, OpenClaw, Factory Droid, Trae)

by Garry Tan - Garry Tan's (Y Combinator) Claude Code setup and "open source software factory" for managing the development lifecycle end-to-end. Includes a set of agents and in-depth skills/tools along with workflows for advancing a product from ideation to production

by Julius Brussee - A plugin that conserves message tokens by communicating in fragmented "caveman speak" - sort of a clever form of compression. Now accompanied by a whole caveman ecosystem including a memory system, caveman spec kit, and a caveman agent

Production-grade engineering skills for AI coding agents, packaged as 24 reusable skills covering the full development lifecycle from /spec to /ship. The slash-command interface and context-aware auto-activation make it a concrete reference for turning senior-engineering judgment into agent-executable harness artifacts

Frontend design taste skill collection covering premium UI generation, redesign audits, GSAP motion, Stitch design systems, minimalist and brutalist visual modes, and full-output enforcement

Multi-platform search CLI for 17 sites including Chinese platforms

by tt-a1i - An Agent Skill for Claude Code that generates interactive architecture, workflow, sequence, data-flow, and lifecycle diagrams as standalone HTML. Typed JSON, local renderers, and delivery checks support source-linked node details, path tracing, themes, and export

(59.1k ⭐) - Claude Code skills that turn any codebase into an interactive knowledge graph you can explore, search, and ask questions about (Multi-platform e.g., Codex are supported)

AI-powered job search orchestrator built on Claude Code. 14-skill pipeline that evaluates jobs, generates ATS-tailored PDFs, and tracks applications. Local-first, MIT

Source for the unsloth-finetuning skill - single-GPU VRAM sizing, LoRA/QLoRA configuration, chat-template and loss-masking correctness, GRPO/DPO post-training, and GGUF/merged export paths (Apache-2.0)

30 curated skills + 832 SaaS automation templates via Composio. Strong on document processing, creative, and business skills

Write videos as HTML and render them to MP4: launch films, explainers, captions, charts and 450+ ready-made blocks, by HeyGen

Comprehensive reference implementation for Claude Code configuration -- skills, subagents, hooks, commands with practical examples. 17,400+ stars

Inspiration for JavaScript Mastery

Research any topic across Reddit, X, YouTube, HN, Polymarket, and the web, ranked by upvotes, likes, and real money instead of editors

(24.1k ⭐) - A Claude Code skill that removes signs of AI-generated writing from text, making it sound more natural and human

(6.2k ⭐) - A skill that keeps coding-agent answers direct, concise, and easy to scan

(33.3k ⭐) - Marketing skills for Claude Code and AI agents. CRO, copywriting, SEO, analytics, and growth engineering

(943 ⭐) - Cloudflare coding-agent skill for multi-phase security audits with independently verified, machine-readable findings

by K-Dense - "A set of ready-to-use Agent Skills for research, science, engineering, analysis, finance and writing." That's their description - modest, simple. That's how you can tell this is really one of the best skills repos on GitHub. If you've ever thought about getting a PhD... just read all of these documents instead. Also I think it IS an AI agent or something? Awesome

(31.3k ⭐) - Academic Research Skills for Claude Code: research → write → review → revise → finalize

Anthropic's official notebook collection covering orchestrator-worker patterns, parallel tool calling, programmatic tool calling (PTC), context compaction, and Agent SDK examples. The patterns/agents/ directory is the reference implementation of every orchestration pattern described in *Building Effective Agents

Source for Emil Kowalski design engineering skills - UI polish, motion review, animation standards, component craft, and high-taste frontend guidance (MIT)

Obsidian-focused skills for markdown, Bases, JSON Canvas, CLI workflows, and content cleanup

Installable library of 1,400+ agentic skills for Claude Code, Cursor, Codex CLI, Gemini CLI, and more. The largest community-driven skill catalog with an npm installer and role-based bundles — a concrete reference for treating skills as versioned harness artifacts rather than ad-hoc prompts

(29.2k ⭐) - Design skill and CLI for building, auditing, and redesigning interfaces with checks for common AI-generated design patterns

Source for 43 security skills covering reverse engineering, binary analysis, offensive assessment orchestration, and threat-intelligence workflows, adapted with English metadata and upstream safety gates (MIT)

17 directives blocking the most common LLM coding honesty failures: hallucinated APIs, invented signatures, false-confidence validation, manufactured-urgency capitulation, authority-driven softening, and self-referential comments. Drop the .mdc in .cursor/rules/

Arm Cloud Migration Assistant accelerates moving x86 workloads to Arm infrastructure. It scans the repository for architecture assumptions, portability issues, container base image and dependency incompatibilities, and recommends Arm-optimized changes. It can drive multi-arch container builds, validate performance, and guide optimization, enabling smooth cross-platform deployment directly inside G

Clone any website with one command using AI coding agents

(22.3k ⭐) - Install agent skills onto your coding agents from any git repository

1,000+ agent skills from official dev teams and community. Works with Codex, Claude Code, Gemini CLI, Cursor

(5.9k ⭐) - Turn any technical book PDF into a Claude Code skill — ready to study, reference, and use while you work

753 cybersecurity skills across 38 domains: cloud security, pentesting, red teaming, DFIR, malware analysis, threat intel, and more (MITRE ATT&CK mapped)

(27.9k ⭐) - A collection of skills for AI coding agents. Skills are packaged instructions and scripts that extend agent capabilities

OfficeCLI is the first and best Office suite purpose-built for AI agents to read, edit, and automate Word, Excel, and PowerPoint files. Free, open-source, single binary, no Office installation required.

Manage Google Drive files, folders, and shared drives

(21.6k ⭐) - Turn Claude Code into a full game dev studio — 49 AI agents, 72 workflow skills, and a complete coordination system mirroring real studio hierarchy

(21.6k ⭐) - A Claude Code skill for creating stunning, animation-rich HTML presentations

Wraps 250+ SaaS APIs (GitHub, Slack, Linear, Notion, etc.) as agent-ready actions with managed OAuth, so tool integration becomes a one-line import rather than a custom harness component per service. The fastest path from "the agent needs to call an external API" to a production-grade, authenticated tool

192 production-ready skills across 9 domains (engineering, marketing, product, compliance, C-level advisory) with 254 Python automation tools. 5,300+ stars

(17.2k ⭐) - A Claude Code Skill that turns prompts into horizontal-swipe magazine-style HTML decks

Official skills catalog: .system, .curated, and .experimental skills. The authoritative upstream source

Huashu Design 3.0 · 在 agent 里打一句话，拿回能交付的设计：网页 / App 原型 / 可编辑 PPTX / 动画 / 信息图 · 六个候选挑三个方向 · 84 种带样张的风格库 · 越用越懂你的外观账本与设计体检 · HTML-native design skill for Claude Code, Codex, Cursor & any agent

(23.3k ⭐) - Claude Code skill implementing Manus-style persistent markdown planning — the workflow pattern behind the $2B acquisition

Full collection: advanced product management frameworks, OKRs, and strategy skills

(24.7k ⭐) - A collection of 20+ skills for writing, image generation, presentations, social publishing, and other daily work with Claude Code, Codex, and compatible agents

Distilly — Distill how they think into reusable Skills for any Agent or Bot. Formerly Colleague Skill（原同事 Skill）.

Healthcare administration specialist with 51 sub-agents covering revenue cycle, compliance, quality, clinical ops, health IT, and payer relations

(15.8k ⭐) - Agent skill and Python service for removing AI provenance marks from text and file metadata, including C2PA, EXIF, and XMP

SEO workflow collection covering technical SEO, hreflang, sitemap, geo, schema, and programmatic SEO patterns

(6.3k ⭐) - An open source harness for generating CAD models

by NVIDIA - Security scanner for AI agent skills. Detect vulnerabilities, malicious patterns, and security risks

(12.1k ⭐) - Agent skill for building interactive isometric illustrations of machines and technical concepts with SVG, WebGL, and 3D effects

Query Chinese AI news, current topics, and daily briefs from AIHOT through anonymous read-only requests; retain dates and original-source links. Service terms apply separately from the MIT-licensed skill

(13.7k ⭐) - Agent Skills for Google products and technologies

The fastest browser for AI agents to run browser automation, built for sharing your logged-in browser state with your AI agents, like Codex or Claude Code, without disturbing you. Zero cost, zero config.

by daily.dev - Useful skills and plugins based on daily.dev platform which contains daily curated news from trusted sources. Your agent can pull from curated list of news and real developer insights from 1M+ community

(18.8k ⭐) - Unofficial Python API and agentic skill for Google NotebookLM, with programmatic access through Python, a CLI, and AI agents such as Claude Code, Codex, and OpenClaw

：以 PUA 的方式驱动 AI 更卖力的干活

(14.5k ⭐) - An Agent Skill and Claude Code plugin that downloads video, extracts frames and captions or transcripts, and answers questions about the on-screen and audio content

Microsoft's skill optimizer that trains reusable natural-language skills for frozen LLM agents through trajectory-driven edits and validation-gated updates, producing deployable best_skill.md artifacts. The key harness insight is that skills should be treated as optimizable parameters that improve with execution feedback, not static prompt fragments written once and forgotten

(10.4k ⭐) - A skill file for removing AI tells from prose

Markdown-first research workflows for Claude Code and other agents, centered on autonomous literature review, experiments, paper iteration, and cross-model critique

(16.5k ⭐) - A comprehensive collection of Agent Skills for context engineering, multi-agent architectures, and production agent systems

(9.2k ⭐) - Official AI skills for GSAP. These skills teach AI coding agents how to correctly use GSAP (GreenSock Animation Platform), including best practices, common animation patterns, and plugin usage

(2.2k ⭐) - Claude Code and Codex skill for creating cinematic product videos with Remotion shot recipes and templates

Loki Mode and Playwright integration

(9.2k ⭐) - A Claude skill that writes the accurate prompts for any AI tool

Turn docs, GitHub repos, PDFs, videos, Confluence, Notion and Slack/Discord into AI skills and RAG knowledge, exportable to vector databases like Qdrant

(13.9k ⭐) - Personal memory for agents with fast retrieval, self-evolving skills, and lower context cost

Comprehensive skill library including autoresearch orchestration with two-loop architecture (inner optimization + outer synthesis)

(12.6k ⭐) - Development skills for AI coding agents

(8.0k ⭐) - ConardLi's open-source Skills collection, featuring web design, knowledge retrieval, image generation, and more

(598 ⭐) - A collection of design skills for Claude Code, Cursor, Codex, Windsurf, and other tools that read Markdown rules

(7.8k ⭐) - Editing skill that removes 20+ AI-writing patterns while preserving the writer's voice

👩‍🚒 Good content deserves good paper. Layout rules and templates that let AI agents export PDF, PNG and editable PowerPoint.

by jeffallan - A comprehensive Claude Code plugin with 65 specialized skills covering full-stack development across a wide range of specific frameworks. Features 9 project workflow commands for Jira/Confluence integration and, notably, an interesting approach to context engineering via a /common-ground command that surfaces Claude's hidden assumptions about your project. This is a smart thing to d

：把书、视频和播客蒸馏为可执行的 Agent Skills

(7.7k ⭐) - Claude Code skill for generating production-quality SVG+PNG technical diagrams

Free, open-source AI Office suite: Docs, Sheets, Slides, PDF, Markdown and HTML editors with a built-in AI agent, plus a `genoffice` CLI and agent skill so Claude Code, Codex and Cursor can create and edit real .docx/.xlsx/.pptx files locally. Bring your own key. macOS, Windows & Linux.

(8.1k ⭐) - GEO-first SEO skill for Claude Code. Comprehensive AI search optimization for any website — citability scoring, AI crawler analysis, brand authority, schema markup, platform-specific optimization, and PDF reports

Official Hugging Face skills - Models, Spaces, datasets, inference, and broader Hugging Face ecosystem workflows

(9.1k ⭐) - Claude Code skills based on The Minimalist Entrepreneur by Sahil Lavingia

： X 万粉大V 基于自己的推文制作的内容创作框架

(10.4k ⭐) - Universal skills loader for AI coding agents

by nicobailon - Agent skill and plugin that turns complex terminal output into styled HTML pages or slide decks for diagrams, diff reviews, plan audits, data tables, and project recaps. Generates self-contained browser-readable artifacts with Mermaid diagrams, responsive layouts, themes, and sharing commands

(4.6k ⭐) - A skill for turning a brand into a scrollable 3D world

Multi-platform ad audit — Google/Meta/LinkedIn/TikTok/Microsoft, 225+ checks, 18 skills. MIT

(1.2k ⭐) - A self-learning skill layer for Claude Code that distills reusable skills from sessions, updates them over time, and prunes unused ones

(3.3k ⭐) - Generate draw.io diagrams from natural language — 6 presets, vision self-check + up to 5-round refinement, codebase-to-diagram, 10,000+ official shapes & 321 AI/LLM brand logos

A toolbox of film styles made in code for Claude Code: 66 ready to use, and your own. Each style is a style prompt plus a demo film made entirely in code by Claude Opus 5.5, with no video model. By Lemomo. · 一套用代码做片的风格工具箱：66 种现成风格，也能做出你自己的