Skills real projects publish on GitHub, most starred first. Each one says what it will make an agent do before you copy it.
zebbernSkillzebbern/claude-code-guide/skills/ethical-hacking-methodology/SKILL.md
This skill should be used when the user asks to "learn ethical hacking", "understand penetration testing lifecycle", "perform reconnaissance", "conduct security scanning", "exploit vulnerabilities", or "write penetration test reports". It provides comprehensive ethical hacking methodology and techniques.
zebbernSkillzebbern/claude-code-guide/skills/idor-testing/SKILL.md
This skill should be used when the user asks to "test for insecure direct object references," "find IDOR vulnerabilities," "exploit broken access control," "enumerate user IDs or object references," or "bypass authorization to access other users' data." It provides comprehensive guidance for detecting, exploiting, and remediating IDOR vulnerabilities in web applications.
zebbernSkillzebbern/claude-code-guide/skills/playwright/playwright-cli/SKILL.md
Automates browser interactions for web testing, form filling, screenshots, and data extraction using playwright-cli. Use when the user needs to navigate websites, interact with web pages, fill forms, take screenshots, test web applications, extract information from web pages, mock network requests, manage browser sessions, or generate test code.
zebbernSkillzebbern/claude-code-guide/skills/playwright/SKILL.md
Battle-tested Playwright patterns for E2E, API, component, visual, accessibility, and security testing. Covers locators, fixtures, POM, network mocking, auth flows, debugging, CI/CD (GitHub Actions, GitLab, CircleCI, Azure, Jenkins), framework recipes (React, Next.js, Vue, Angular), and migration guides from Cypress/Selenium. TypeScript and JavaScript.
zebbernSkillzebbern/claude-code-guide/skills/scanning-tools/SKILL.md
This skill should be used when the user asks to "perform vulnerability scanning", "scan networks for open ports", "assess web application security", "scan wireless networks", "detect malware", "check cloud security", or "evaluate system compliance". It provides comprehensive guidance on security scanning tools and methodologies.
eugeniughelburSkilleugeniughelbur/obsidian-second-brain/SKILL.md
Operate any Obsidian vault as a living, self-rewriting second brain (an evolution of Karpathy's LLM Wiki pattern: sources rewrite existing pages, contradictions reconcile automatically, scheduled agents maintain the vault while you sleep). Use this skill whenever the user asks Claude to read, write, update, search, or manage their Obsidian vault - including saving notes from conversation, creating daily entries, updating kanban boards, logging dev work, managing people notes, capturing decisions, tracking deals, or maintaining any vault structure. Also triggers when the user wants to bootstrap a new vault from scratch, run a vault health check, or drop a _CLAUDE.md into their vault so all Claude surfaces share the same operating rules. Includes a research toolkit (7 commands: /x-read, /x-pulse, /research, /research-deep, /notebooklm, /youtube, /podcast) for AI-powered research via Grok, Perplexity, NotebookLM, YouTube, and podcast feeds - findings save to the vault automatically following the AI-first vault rule. Use proactively whenever the conversation produces information worth preserving (decisions, people met, projects started, tasks completed, lessons learned, research findings).
AnthropicSkillanthropics/claude-plugins-community/tres-finance-plugin/skills/tres-asset-balance-validation/SKILL.md
Validate wallet balances in TRES Finance against DeBank and generate a discrepancy report. Use this skill whenever the user asks to validate, verify, cross-check, or audit their TRES balances against on-chain data or DeBank. Also trigger when the user asks if their balances are correct or wants to see discrepancies. Only EVM-compatible wallets are supported.
nyldnSkillnyldn/claude-octopus/.claude/skills/skill-context-detection/SKILL.md
Auto-detect work context (Dev vs Knowledge) — use to tailor workflows based on current task type
nyldnSkillnyldn/claude-octopus/.claude/skills/skill-debate/SKILL.md
Structured multi-provider AI debates between Claude and available advisors — use for critical decisions
nyldnSkillnyldn/claude-octopus/.claude/skills/skill-knowledge-work/SKILL.md
Switch to Knowledge Work mode for research and writing — use when task is non-code focused
nyldnSkillnyldn/claude-octopus/skills/skill-context-detection/SKILL.md
Auto-detect work context (Dev vs Knowledge) — use to tailor workflows based on current task type
nyldnSkillnyldn/claude-octopus/skills/skill-debate/SKILL.md
Structured multi-provider AI debates between Claude and available advisors — use for critical decisions
nyldnSkillnyldn/claude-octopus/skills/skill-knowledge-work/SKILL.md
Switch to Knowledge Work mode for research and writing — use when task is non-code focused
davidondrejSkilldavidondrej/skills/skills/agent-orchestration/cmux/SKILL.md
Control the cmux macOS terminal app: workspaces, panes, surfaces, browsers, notifications, settings, and hooks. Use only when the user explicitly names cmux. Read before running any cmux command.
davidondrejSkilldavidondrej/skills/skills/research-and-web/deepapi/SKILL.md
Use DeepAPI for all web search, deep research, and web scraping (websites, LinkedIn, GitHub, X/Twitter, YouTube, Instagram) instead of built-in search, research, fetch, or browser tools. Prefer dedicated platform endpoints over web search. Instagram has profile, post, comment, and hashtag endpoints; no generic search. Use Deep Scrape for sourced JSON dossiers on people, companies, or topics. Also use it to navigate and act on public websites, draft and send safe email, and generate images.
davidondrejSkilldavidondrej/skills/skills/skill-authoring/effective-agent-skills/SKILL.md
Write, review, and debug agent skills. Use when creating or editing SKILL.md files, improving skill structure, or diagnosing invocation and execution problems.
brycewang-stanfordSkillbrycewang-stanford/Auto-Empirical-Research-Skills/SKILL.md
Route empirical-research requests through the Auto-Empirical Research Skills catalog when this whole repository is installed as one skill in Codex, CodeBuddy, Claude Code, or another IDE. Use to choose and load the right vendored AERS skill for causal inference, econometrics, replication, data acquisition, manuscript writing, peer review and referee responses, citation checking, de-AIGC editing, or full empirical-paper workflows, or an end-to-end run from raw data all the way to a finished Word (.docx) manuscript, without reading the entire repository at once.
agentscope-aiSkillagentscope-ai/ReMe/skills/dingtalk-message/SKILL.md
钉钉消息发送技能。支持企业内部机器人（批量单聊/群聊）和 Webhook 自定义机器人两种接入方式，支持多机器人管理，支持文本、Markdown、链接、ActionCard、FeedCard等多种消息类型。
NVIDIASkillNVIDIA/skills/skills/jetson-customize-uphy/SKILL.md
Configure Jetson UPHY lane allocation (uphy0/uphy1-config) on Orin/Thor custom carriers. Do NOT use for pinmux or PCIe-only edits.
NVIDIASkillNVIDIA/skills/skills/jetson-generate-kb/SKILL.md
Build a per-target knowledge-base markdown next to the active profile by walking the BSP root and source tree. Use after init-image / init-source; not for editing profile fields.
A folder with a SKILL.md file: a name, a description of when to use it, and instructions. Claude loads a skill only when the task matches its description.
Copy the folder into your project's .claude/skills/ directory, or into your own skills folder to use it everywhere.
We read each file for commands that read secrets, delete things or pipe downloads into a shell, and say so before you copy it. No warning is not a promise that a file is safe.
Open a skill to see its discussion. Reports from people and their agents are coming.
