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Claude Skills

The open format is called Agent Skills and works in Claude Code, Codex, Cursor and other agents — most people know it as Claude Skills.

Every Agent Skill we could find on GitHub, deduplicated by content. 79 437 files from 1 744 authors, of which 61 785 are unique — the rest is the same skill repackaged into someone else's repository. For each one: what it weighs in tokens, whether it ships runnable scripts, and which MCP servers it needs.

61 785
unique skills
out of 79 437 files found on GitHub
17 652
are copies
same content, someone else's repository
1 737
tokens, median
what a typical skill costs you in context
7 884
name collisions
two skills with one name cannot sit side by side

14 281–14 340 of 61 785

page 239 of 1 030
Strix•功能级授权缺陷
by asdfgh1445

Strix 功能级授权缺陷测试手册,覆盖操作级权限失效、管理功能越权与 API 操作绕过;触发名:strix-broken-function-level-authorization

2k tokens
Strix•业务逻辑漏洞
by asdfgh1445

Strix 业务逻辑漏洞测试手册,覆盖流程绕过、状态操控与领域约束破坏;触发名:strix-business-logic

2k tokens
Strix•CSRF 测试
by asdfgh1445

Strix CSRF 测试手册,覆盖 token 绕过、SameSite、CORS 误配与状态变更滥用;触发名:strix-csrf

2k tokens
Strix•ffuf 用法
by asdfgh1445

Strix ffuf 模糊测试命令手册,覆盖匹配器、过滤器与自动化友好参数;触发名:strix-ffuf

765 tokens
Strix•httpx 用法
by asdfgh1445

Strix httpx 探测命令手册,覆盖探针参数、输出格式与自动化安全用法;触发名:strix-httpx

807 tokens
Strix•IDOR 测试
by asdfgh1445

Strix IDOR/BOLA 测试手册,覆盖对象级授权失效与跨账户数据访问;触发名:strix-idor

2k tokens
Strix•信息泄露测试
by asdfgh1445

Strix 信息泄露测试手册,覆盖报错、调试端点、元数据泄露与源码暴露;触发名:strix-information-disclosure

2k tokens
Strix•不安全文件上传
by asdfgh1445

Strix 文件上传安全测试手册,覆盖扩展名绕过、Content-Type 操控与路径穿越;触发名:strix-insecure-file-uploads

2k tokens
Strix•Katana 用法
by asdfgh1445

Strix Katana 爬虫命令手册,覆盖深度、JS 抓取与稳定并发控制;触发名:strix-katana

890 tokens
Strix•Nuclei 用法
by asdfgh1445

Strix Nuclei 命令手册,覆盖模板选择、高吞吐执行与自动化边界控制;触发名:strix-nuclei

716 tokens
Strix•开放重定向
by asdfgh1445

Strix 开放重定向测试手册,覆盖钓鱼跳转、OAuth 令牌窃取与白名单绕过;触发名:strix-open-redirect

2k tokens
Strix•路径穿越与文件包含
by asdfgh1445

Strix 路径穿越与文件包含测试手册,覆盖本地/远程文件访问与代码执行链;触发名:strix-path-traversal-lfi-rfi

2k tokens
Strix•快速扫描
by asdfgh1445

Strix 快速安全评估模式,面向高影响漏洞的限时测试;触发名:strix-quick

842 tokens
Strix•远程代码执行
by asdfgh1445

Strix RCE 测试手册,覆盖命令注入、反序列化、模板注入与代码求值;触发名:strix-rce

2k tokens
Strix•SQL 注入
by asdfgh1445

Strix SQL 注入测试手册,覆盖 union、blind、error-based 与 ORM 绕过技巧;触发名:strix-sql-injection

2k tokens
Strix•sqlmap 用法
by asdfgh1445

Strix sqlmap 命令手册,覆盖目标语法、无交互执行与常见枚举流程;触发名:strix-sqlmap

726 tokens
Strix•SSRF 测试
by asdfgh1445

Strix SSRF 测试手册,覆盖云元数据访问、内网服务发现与协议走私;触发名:strix-ssrf

2k tokens
Strix•标准扫描
by asdfgh1445

Strix 标准安全评估模式,在系统性与覆盖率之间保持平衡;触发名:strix-standard

1k tokens
Strix•XSS 测试
by asdfgh1445

Strix XSS 测试手册,覆盖反射型、存储型、DOM 型向量与 CSP 绕过;触发名:strix-xss

2k tokens
Modlens
by liustack

Plug-in vision for text-only models. Hard rule: when a file path or URL with an image extension (.png, .jpg, .jpeg, .webp, .gif, .heic, .heif) appears anywhere in the conversation (typed by the user, injected as a `[Image: source: <path>]` line, or inside a tag) and you cannot see that image's content, run this skill on it before any other approach: no self-built OCR, no PIL, no tesseract. Also triggers on pasted-image placeholders such as `[Image #1]` and `[Unsupported Image]`. If you can actually see the image, do not use this skill. When unsure, run `modlens guard` before the first read of a session: a deny verdict means the active model has native vision and must read the image itself. Runs the modlens CLI to convert the image into structured JSON evidence: every word transcribed, layout regions, semantics, visual clues. Also use when the user asks how to install, configure, or switch modlens providers (Gemini API key, OpenAI-compatible endpoints, Claude API or Claude Code CLI).

14k tokens scripts
Ecommerce Visual Copywriting
by feichanggege

| 电商主图与详情页视觉策划 Skill。根据产品资料、资质边界、目标平台和视觉参考,先判断转化驱动力并锁定 Campaign Style Lock,再输出主图/详情页 Storyboard;用户确认后,交付画面描述、图内文案、设计说明和生图 Prompt。 适用于淘宝、天猫、京东、拼多多、抖音小店等平台的商品主图、详情页、listing、商品卖点、视觉脚本、合规改写和广告法风险审查。 触发词包括:主图文案、详情页文案、电商视觉策划、卖点提炼、视觉脚本、转化率、点击率、合规审查、广告法、平台审核、设计师执行稿。 不用于最终法律意见、医疗或保健功效背书、自动上架发布、编造检测报告/专利/批准文号/销量/评价,或和电商视觉落图无关的普通营销长文。

4509k tokens scripts zh
Mantis Dedupe
by google
vendor

>- Consolidates raw security findings to eliminate redundant reports. Use when raw findings have been generated by the researcher and need consolidation before review. Don't use for initial code auditing or patch generation.

5k tokens
Mantis History
by google
vendor

>- Analyzes the repository's version control system (VCS) history to extract past vulnerabilities, security fixes, and vulnerability patterns. Use as an initial pre-processing step to build a historical vulnerabilities database (workspace/historical_learnings.jsonl) that informs subsequent stages about past issues and fixes. Don't use for code reviews, writing test scripts, or patching code.

3k tokens
Mantis Patch
by google
vendor

>- Generates minimal security fixes using transactional isolation (shadow directories or file backups), applies patches, and verifies them. Use when security findings are successfully reproduced and need patches applied and verified. Don't use for initial vulnerability research or reproduction payload generation.

12k tokens
Mantis Chain
by google
vendor

>- Analyzes individual security findings to identify and construct complex exploit chains. Use after validation stages to see if multiple low-severity bugs can be combined into a higher impact vulnerability. Don't use for initial codebase auditing or writing patch code.

6k tokens
Mantis Architecture
by google
vendor

>- Synthesizes raw learnings and codebase analysis into an interlinked Markdown Knowledge Base (KB). Use at the beginning of a loop to build or update architecture.md, entities, and vulnerabilities. Don't use for generating threat models or formulating execution plans.

5k tokens
Mantis Critic
by google
vendor

>- Assesses the production viability of findings, filtering out debug-only features and assertion traps. Use when findings have been validated and you need to confirm they are triggerable in production release builds (with assertions disabled). Don't use for writing reproduction scripts or patches.

5k tokens
Mantis Meta Agent
by google
vendor

>- Acts as the persistent supervisor, launching and monitoring the automated review campaign. Use when running a long-running, continuous security review campaign that needs autonomous coordination. Don't use for executing individual review stages directly.

10k tokens
Mantis Calibrate
by google
vendor

>- Calculates the final risk score based on empirical evidence and architectural impact. Use when findings have been fully processed by previous stages and you need to append final risk scores to the finding files. Don't use for discovering new vulnerabilities or writing patches.

14k tokens
Mantis Report
by google
vendor

>- Generates a human-readable security review packet compiled from confirmed findings and exploit chains. Use at the end of a review cycle to produce stakeholder-facing documentation. Don't use for auditing code or verifying patches directly.

7k tokens
Mantis Plan
by google
vendor

>- Formulates a targeted defensive security reviewing plan based on the active threat model and historical learnings. Use when starting a security review campaign to map the codebase boundaries and generate a roadmap (workspace/plan.json). Don't use for executing code reviews, writing test scripts, or patching code.

8k tokens
Mantis Researcher
by google
vendor

>- Audits production source code files based on the strategy in workspace/plan.json. Use when a review plan exists and you need to perform static analysis and deep-dive reviews of targeted files. Don't use for planning, deduplicating, or writing patches.

6k tokens
Mantis Pipeline Adapter
by google
vendor

>- Interactively guides the design and implementation of custom deterministic orchestrator harnesses. Use when a user wants to build their own pipeline to wrap and run Mantis skills reliably. Don't use for executing the default pipeline directly.

24k tokens
Mantis Reflect
by google
vendor

>- Extracts learnings from execution trajectories at the end of a Mantis loop. Use to parse agent conversations, extract successes, failures, and false assumptions, and append them to workspace/learnings.jsonl. Don't use for analyzing source code or writing patches.

3k tokens
Mantis Reproduce
by google
vendor

>- Generates and runs crash reproducers to verify security flaws. Use when viable findings exist and you need to write and execute a script or payload to verify the crash. Don't use for code auditing or patching.

11k tokens
Mantis Review
by google
vendor

>- Independently reviews findings and filters out false positives. Use when consolidated findings need validation against the actual source code. Don't use for reproducing crashes or patching code.

7k tokens
Mantis Structural Index
by google
vendor

>- Builds a content-addressed semantic-unit index from source code for structural context. Use when a pinned or live codebase is available and structural cross-reference data would improve research quality. Don't use for findings analysis, patching, or reporting.

9k tokens
Mantis Summarize
by google
vendor

>- Pre-processes the repository by generating security-focused summaries (mantis-summary.md) for each directory to make planning and research more efficient. Use when starting a review campaign to map the codebase before threat modeling and planning. Don't use for executing code reviews, writing test scripts, or patching code.

2k tokens
Mantis Threat Model
by google
vendor

>- Synthesizes trust boundaries, attack surfaces, and attacker profiles into a living threat model. Use as Stage B of the Knowledge Base generation process, reading architecture and entity definitions from the KB. Don't use for analyzing source code or extracting raw learnings from JSONL files.

3k tokens
Anything2explainer
by Vincentwei1021

给一个主题,产出一条黑底 MG 风格(幕底可选星点或点阵波)、有配音字幕章节进度条的科普讲解视频(中文或英文;Remotion 代码动画;时长由用户定,常用 3–5 分钟)。内含可编译模板、图元库、配音/分镜/渲染工具、风格与动效规范、多 agent 分工协议与 QC 判据,以及一条完整样片(《RAG 与知识库》)作为质量标尺。Turn any topic into a narrated motion-graphics explainer video in Chinese or English, on a black canvas with a star-field or dot-field backdrop, TTS voiceover, subtitles and a chapter progress bar, every frame drawn in code with Remotion. Use when the user asks for an explainer, educational or science-communication video about a topic, or wants an article or document turned into a video.

5892k tokens scripts zh
Clean Code
by decebals

Clean Code principles (DRY, KISS, YAGNI), naming conventions, function design, and refactoring. Use when user says "clean this code", "refactor", "improve readability", or when reviewing code quality.

4k tokens
API Contract Review
by decebals

Review REST API contracts for HTTP semantics, versioning, backward compatibility, and response consistency. Use when user asks "review API", "check endpoints", "REST review", or before releasing API changes.

3k tokens
Architecture Review
by decebals

Analyze Java project architecture at macro level - package structure, module boundaries, dependency direction, and layering. Use when user asks "review architecture", "check structure", "package organization", or when evaluating if a codebase follows clean architecture principles.

3k tokens
Concurrency Review
by decebals

Review Java concurrency code for thread safety, race conditions, deadlocks, and modern patterns (Virtual Threads, CompletableFuture, @Async). Use when user asks "check thread safety", "concurrency review", "async code review", or when reviewing multi-threaded code.

4k tokens
Issue Triage
by decebals

Triage and categorize GitHub issues with priority labels. Use when user says "triage issues", "check issues", "review open issues", or during regular maintenance of GitHub issue backlog.

3k tokens
Git Commit
by decebals

Generate conventional commit messages for Java projects. Use when user says "commit", "create commit", "commit changes", or after completing code changes that need to be committed.

2k tokens
Design Patterns
by decebals

Common design patterns with Java examples (Factory, Builder, Strategy, Observer, Decorator, etc.). Use when user asks "implement pattern", "use factory", "strategy pattern", or when designing extensible components.

5k tokens
Changelog Generator
by decebals

Generate changelogs from git commits. Use when user says "generate changelog", "update changelog", "what changed since last release", or before preparing a new release.

3k tokens
Java Code Review
by decebals

Systematic code review for Java with null safety, exception handling, concurrency, and performance checks. Use when user says "review code", "check this PR", "code review", or before merging changes.

3k tokens
Java Migration
by decebals

Guide for upgrading Java projects between major versions (8→11→17→21→25). Use when user says "upgrade Java", "migrate to Java 25", "update Java version", or when modernizing legacy projects.

4k tokens
Solid Principles
by decebals

SOLID principles checklist with Java examples. Use when reviewing classes, refactoring code, or when user asks about Single Responsibility, Open/Closed, Liskov, Interface Segregation, or Dependency Inversion.

5k tokens
Maven Dependency Audit
by decebals

Audit Maven dependencies for outdated versions, security vulnerabilities, and conflicts. Use when user says "check dependencies", "audit dependencies", "outdated deps", or before releases.

2k tokens
Jpa Patterns
by decebals

JPA/Hibernate patterns and common pitfalls (N+1, lazy loading, transactions, queries). Use when user has JPA performance issues, LazyInitializationException, or asks about entity relationships and fetching strategies.

4k tokens
Logging Patterns
by decebals

Java logging best practices with SLF4J, structured logging (JSON), and MDC for request tracing. Includes AI-friendly log formats for Claude Code debugging. Use when user asks about logging, debugging application flow, or analyzing logs.

4k tokens
Performance Smell Detection
by decebals

Detect potential code-level performance smells in Java - streams, collections, boxing, regex, object creation. Provides awareness, not absolutes - always measure before optimizing. For JPA/database performance, use jpa-patterns instead.

3k tokens
Security Audit
by decebals

Java security checklist covering OWASP Top 10, input validation, injection prevention, and secure coding. Works with Spring, Quarkus, Jakarta EE, and plain Java. Use when reviewing code security, before releases, or when user asks about vulnerabilities.

4k tokens
Spring Boot Patterns
by decebals

Spring Boot best practices and patterns. Use when creating controllers, services, repositories, or when user asks about Spring Boot architecture, REST APIs, exception handling, or JPA patterns.

4k tokens
Test Quality
by decebals

Write high-quality JUnit 5 tests with AssertJ assertions. Use when user says "add tests", "write tests", "improve test coverage", or when reviewing/creating test classes for Java code.

4k tokens
Game QA
by zenstory-ai

Verify a game with evidence on its selected target runtime. Launch the actual build and prove real rendering, input, the core loop, at least one designed outcome, restart, and explicit limitations without dressing subjective fun up as a certain verdict. Use for test a generated game, QA a game build, check whether the game is fully playable, or verify the build. 游戏证据化质量验证。在选定的目标运行环境中启动实际构建,证明真实渲染、输入、核心循环、至少一个设计结果、重开和明确限制,不把主观趣味包装成确定性结论。用于测试生成游戏、检查游戏能否完整游玩或验证构建。

3k tokens zh
Game World Design
by zenstory-ai

Design game experience, systems, and levels. Converge the chosen concept into one GAME_DESIGN defining the player promise, core loop, how the world responds, the systems actually needed, level pacing, feedback, failure, and a fully playable prototype. Use for design the game world, deepen the gameplay and levels, write the game design document, design the branching story structure, scenes, dialogue and consequences. 游戏体验、系统与关卡策划。把选定概念收束为一份 GAME_DESIGN,定义玩家承诺、核心循环、世界响应、必要系统、关卡节奏、反馈、失败和可完整游玩的原型。用于设计游戏世界、深化玩法和关卡、设计互动叙事的场景对白与分支因果等需求。

7k tokens zh

Claude Skills — questions

Answers built from the skills we actually parsed.

What is a Claude Skill?
A folder with a SKILL.md file: instructions that teach an agent to do one thing well, optionally with scripts and reference files alongside. The format is open and called Agent Skills — Claude Code, Codex and other agents read the same files. It is not a program you run; it is knowledge the agent loads when the task calls for it.
How is a skill different from an MCP server?
A server gives the agent new abilities — it connects to something and exposes tools. A skill gives the agent knowledge: how to use what it already has. They combine, and often literally: 11 333 of the skills here declare which MCP servers they need to work.
Why are there fewer skills here than in other catalogues?
Because we deduplicate by content. Of 79 437 files found on GitHub, 61 785 are unique — the rest is the same skill copied into someone else's repository, word for word. Catalogues that count files rather than skills show every copy as a separate entry.
What does the token count mean?
A skill is loaded into the model's context when it is used, so its size is a running cost on every request that touches it. We measure the whole folder, not just SKILL.md: one official skill is 377 tokens, another drags 83 files of fonts behind it.
How do I install a skill?
Copy the skill folder into ~/.claude/skills for personal use, or into .claude/skills inside a project. The agent picks it up by the name in the SKILL.md header — which is worth checking: 7 884 skills here share a name with another skill, and two of them cannot sit side by side.