Agent Skills Directory

AI Agent Skills Directory

Find reusable SKILL.md workflows for AI coding agents. Compare compatible platforms, source repos, install notes, and practical use cases.

450
Skills
14
Categories
19
Repos
8
Agents

Featured Skills

Curated skills with clear sources, categories, and agent compatibility.

API And Interface Design

addyosmani/agent-skills

Coding

Guides stable API and interface design. Use when designing APIs, module boundaries, or any public interface. Use when creating REST or GraphQL endpoints, defining type contracts between modules, or establishing boundaries between frontend and backend.

typescriptfrontenddata
94,159 StarsMIT

Browser Testing With Devtools

addyosmani/agent-skills

Coding

Tests in real browsers via Chrome DevTools MCP. Use when building or debugging anything that runs in a browser. Use when you need to inspect the DOM, capture console errors, analyze network requests, profile performance, or verify visual output with real runtime data. Requires the chrome-devtools MCP server to be co...

Claude CodeClaude
javascriptreactsecuritytesting
94,159 StarsMIT

Derive Client

vercel-labs/agent-browser

Data Analysis

Reverse-engineer a website's internal API by recording browser traffic into a HAR file, then generate a standalone client or CLI that calls the endpoints directly, with no browser needed after the first recording. Use when asked to "derive a client", "build a CLI for <site>", "reverse engineer this site's API", "rec...

browserdata
42,531 StarsApache-2.0

Intended Vs Implemented

phuryn/pm-skills

Product Management

The method for finding the gap between what a system is supposed to do and what the code actually does — the class of bug generic scanners miss because they have no model of intent. Defines what counts as documented intent, what counts as implementation evidence, which mismatches matter, and how to avoid hand-wavy f...

CodexClaudeClaude Code
product-managementai-shipping
26,307 StarsMIT

Shipping Artifacts

phuryn/pm-skills

Product Management

The durable documentation set that makes an AI-built (vibe-coded) app reviewable before shipping. A small core every app needs — architecture, user/permission flows, permissions, variables/secrets, and a test-coverage map — plus conditional docs added only when they apply: emails, scheduled work, SEO, and embedded a...

ClaudeClaude Code
product-managementai-shipping
26,307 StarsMIT

Guizang Ppt Skill

op7418/guizang-ppt-skill

Presentations

生成横向翻页网页 PPT(单 HTML 文件),含 WebGL 背景、演讲者视图、观众屏同步、讲稿备注、章节幕封、数据大字报、图片网格等模板。提供两种风格:1 "电子杂志 × 电子墨水"(衬线 + 流体背景 + 暖色) 2 "瑞士国际主义"(无衬线 + 网格点阵 + IKB/柠檬黄/柠檬绿/安全橙高亮)。当用户需要制作分享 / 演讲 / 发布会风格的网页 PPT,或提到"杂志风 PPT"、"瑞士风 PPT"、"Swiss Style"、"horizontal swipe deck"时使用。

CodexClaudeClaude Code
presentationshtml-slidespptwebgl
26,257 StarsAGPL-3.0

Constant Time Testing

trailofbits/skills

Frontend Design

Measures timing side channels in cryptographic implementations by running them, using dudect for statistical analysis and Timecop over Valgrind for dynamic tracing. Covers the formal, symbolic, dynamic, and statistical tool categories and how to read a result. Use when testing whether a running implementation is con...

Claude CodeClaudeCursor
securitytestingreviewresearch
7,069 StarsSource linked

Cargo Fuzz

trailofbits/skills

Security

Sets up and runs cargo-fuzz, the standard fuzzing tool for Cargo-based Rust projects. Covers cargo fuzz init, the nightly toolchain requirement, fuzz_target! harnesses, Arbitrary-derived structured inputs, sanitizer options, cargo fuzz coverage, and reproducing a crash artifact. Use when fuzzing a Rust crate, writin...

Claude CodeClaudeCursor
securityresearchdatagithub
7,069 StarsSource linked

Notion Knowledge Capture

openai/plugins

Productivity

Capture conversations and decisions into structured Notion pages; use when turning chats/notes into wiki entries, how-tos, decisions, or FAQs with proper linking.

Codex
data
6,656 StarsMIT

Browse by Platform

Browse by Category

DevOps

106 published skills

Skills for CI, deployment, infrastructure, observability, and release operations.

Frontend Design

74 published skills

Skills for UI implementation, design critique, interaction polish, accessibility, and responsive frontend work.

Product Management

68 published skills

Agent skills for product strategy, discovery, market research, execution, go-to-market planning, product analytics, and PM operating workflows.

Domain Specific

50 published skills

Specialized skills for narrow industries, expert workflows, and vertical use cases.

Data Analysis

40 published skills

Skills for working with datasets, notebooks, metrics, charts, and analytical workflows.

Security

33 published skills

Skills for security review, threat modeling, compliance checks, and secure engineering.

Coding

29 published skills

Agent skills for software engineering, code review, testing, refactoring, and project maintenance.

Productivity

13 published skills

General-purpose skills for personal workflows, project organization, and recurring operations.

Research

8 published skills

Skills for web research, source synthesis, literature review, and knowledge workflows.

Documents

7 published skills

Skills for creating, editing, reviewing, and converting documents.

Presentations

6 published skills

Skills for building and refining slide decks, talks, and visual narratives.

Spreadsheets

6 published skills

Skills for spreadsheets, formulas, tables, workbooks, and structured business data.

Browser Automation

5 published skills

Skills that operate browsers, inspect pages, test flows, and automate web tasks.

Marketing

5 published skills

Skills for content operations, SEO, social media, positioning, and growth workflows.

Latest Updated Skills

API And Interface Design

addyosmani/agent-skills

Coding

Guides stable API and interface design. Use when designing APIs, module boundaries, or any public interface. Use when creating REST or GraphQL endpoints, defining type contracts between modules, or establishing boundaries between frontend and backend.

typescriptfrontenddata
94,159 StarsMIT

Browser Testing With Devtools

addyosmani/agent-skills

Coding

Tests in real browsers via Chrome DevTools MCP. Use when building or debugging anything that runs in a browser. Use when you need to inspect the DOM, capture console errors, analyze network requests, profile performance, or verify visual output with real runtime data. Requires the chrome-devtools MCP server to be co...

Claude CodeClaude
javascriptreactsecuritytesting
94,159 StarsMIT

Using Agent Skills

addyosmani/agent-skills

Coding

Discovers and invokes agent skills. Use when starting a session, or when you need to decide which skill or workflow applies to the piece of work at hand. This is the meta-skill that governs how all other skills are discovered and invoked.

frontendsecuritytestingreview
94,159 StarsMIT

Planning And Task Breakdown

addyosmani/agent-skills

Productivity

Breaks work into ordered tasks. Use when you have a spec or clear requirements and need to break work into implementable tasks. Use when a task feels too large to start, when you need to estimate scope, or when parallel work is possible.

Claude
frontendreviewdatagithub
94,159 StarsMIT

Shipping And Launch

addyosmani/agent-skills

Coding

Prepares production launches. Use when preparing to deploy to production, or when asking what needs to be in place before shipping. Use when you need a pre-launch checklist, when setting up monitoring, when planning a staged rollout, or when you need a rollback strategy.

typescriptjavascriptreactsecurity
94,159 StarsMIT

Interview Me

addyosmani/agent-skills

Data Analysis

Extracts what the user actually wants instead of what they think they should want. Achieves this through one-question-at-a-time interview until ~95% confidence about the underlying intent. Use when an ask is underspecified ("build me X" without "for whom" or "why now"), when the user explicitly invokes ("interview m...

reactreview
94,159 StarsMIT

Code Simplification

addyosmani/agent-skills

Coding

Simplifies code for clarity. Use when refactoring code for clarity without changing behavior. Use when code works but is harder to read, maintain, or extend than it should be. Use when reviewing code that has accumulated unnecessary complexity.

Claude CodeClaude
typescriptjavascriptpythonreact
94,159 StarsMIT

Source Driven Development

addyosmani/agent-skills

Coding

Grounds every implementation decision in official documentation. Use when you want to verify an approach against the official docs before implementing it, or when you want authoritative, source-cited code free from outdated patterns. Use when building with any framework or library where correctness matters.

typescriptpythonreactnextjs
94,159 StarsMIT

Context Engineering

addyosmani/agent-skills

Coding

Optimizes agent context setup. Use when starting a new session, when agent output quality degrades, when switching between tasks, or when you need to configure rules files and context for a project.

CodexClaude CodeClaude
typescriptreactbrowserresearch
94,159 StarsMIT

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