381,784 Collected SKILL.md files

Explore AI Agent Skills & Claude Prompts

Discover open-source agent skills for Claude Code, Codex, ChatGPT, and any tool that uses SKILL.md.

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Showing 12 of 19 skills
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repo-source-code-review

by open-circle
star 8.8k

Review pull requests and source code changes in /library/src/. Use when reviewing PRs, validating implementation patterns, or checking code quality before merging. Covers code quality checks, type safety, documentation review, test coverage, and common issues to watch for.

navigation main article SKILL.md
schedule Updated 3 months ago
open-circle

repo-structure-navigate

by open-circle
star 8.8k

Navigate the Valibot repository structure. Use when looking for files, understanding the codebase layout, finding schema/action/method implementations, locating tests, API docs, or guide pages. Covers monorepo layout, library architecture, file naming conventions, and quick lookups.

navigation main article SKILL.md
schedule Updated 3 months ago
open-circle

repo-website-api-create

by open-circle
star 8.8k

Create new API reference pages for the Valibot website at website/src/routes/api/. Use when adding documentation for new schemas, actions, methods, or types. Covers reading source code, creating properties.ts and index.mdx files, updating menu.md, and cross-referencing related APIs.

navigation main article SKILL.md
schedule Updated 3 months ago
open-circle

repo-website-api-update

by open-circle
star 8.8k

Update existing API documentation pages after source code changes. Use when syncing docs with library changes like new parameters, type constraint changes, interface updates, or function renames. Covers common change patterns and verification steps.

navigation main article SKILL.md
schedule Updated 3 months ago
open-circle

repo-website-guide-create

by open-circle
star 8.8k

Create conceptual documentation and tutorial pages for the Valibot website at website/src/routes/guides/. Use when adding guides about schemas, pipelines, async validation, migration, or other topics. Covers directory structure, MDX templates, frontmatter, and content guidelines.

navigation main article SKILL.md
schedule Updated 3 months ago
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repo-source-code-document

by open-circle
star 8.8k

Write JSDoc comments and inline documentation for Valibot library source code in /library/src/. Use when documenting schemas, actions, methods, or utilities. Covers interface documentation, function overloads, purity annotations, inline comment patterns, and terminology consistency.

navigation main article SKILL.md
schedule Updated 3 months ago
open-circle

repo-structure-navigate

by open-circle
star 962

Navigate the Formisch monorepo structure. Use when finding code locations, understanding architecture, locating source files, or implementing features across packages and frameworks.

navigation main article SKILL.md
schedule Updated 3 months ago
open-circle

repo-website-api-update

by open-circle
star 962

Update existing API documentation when Formisch source code changes. Use when function signatures, types, interfaces, or JSDoc comments change in the library source.

navigation main article SKILL.md
schedule Updated 1 month ago
open-circle

repo-source-code-test-frameworks

by open-circle
star 962

Write unit and type tests for Formisch framework packages (frameworks/preact, frameworks/solid, frameworks/svelte, frameworks/vue, frameworks/react). Use when adding tests for hooks/composables/runes (useForm/createForm, useField, useFieldArray) or components (Form, Field, FieldArray) in any framework wrapper.

navigation main article SKILL.md
schedule Updated 1 month ago
open-circle

repo-website-api-create

by open-circle
star 962

Create new API documentation routes for the Formisch website. Use when adding documentation for new exported functions, types, components, or methods that don't yet have website documentation.

navigation main article SKILL.md
schedule Updated 1 month ago
open-circle

repo-website-guide-create

by open-circle
star 962

Add new documentation guides and tutorials to the Formisch website. Use when creating guides about form concepts, features, or techniques that aren't covered by existing documentation.

navigation main article SKILL.md
schedule Updated 3 months ago
open-circle

repo-website-api-review

by open-circle
star 962

Review and verify API documentation routes on the Formisch website. Use when checking documentation accuracy, completeness, and consistency with source code.

navigation main article SKILL.md
schedule Updated 1 month ago
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Browse Agent Skills by Occupation

23 major groups · 867 SOC occupations

Browse by Category

Explore agent skills organized by their primary use case

SKILLMD / CREATORS AND OCCUPATION CATEGORIES

Explore the agent skills ecosystem by occupation and creator

SkillMD is not just a keyword search box. It is an open map that organizes public skills by occupation, creator, and repository, helping you see which workflows, judgment criteria, and domain habits people are writing for AI agents.

Then follow creators and GitHub repositories back to the source: compare the skills a team maintains, whether the repo is active, and how the README frames the work before you open, install, or reuse anything.

Use it three ways: learn an unfamiliar field by occupation, study how creators organize skills, then use source context to decide what is worth opening or reusing.

01 Map a field

Browse 23 occupation groups and 867 SOC roles to learn what skills exist in adjacent domains and how they break down real work.

02 Follow creators

Use creator and repository pages to inspect maintained skill collections, recent updates, and source context before trusting a result.

03 Search with sources

Search 1.7M+ collected skills, then use occupation tags, creators, and GitHub source context to decide what is worth opening.

Start with the occupation map, then follow creators and repositories back to real code. SkillMD helps explain why a skill is worth opening, not only what it is named.

SEO KNOWLEDGE HUB & TECHNICAL OVERVIEW

Standardizing Agent Capabilities with SKILL.md and Model Context Protocol (MCP)

In the rapidly evolving landscape of artificial intelligence, LLM agents (Large Language Model agents) have transitioned from simple text predictors to autonomous problem solvers. To orchestrate complex, multi-step agentic workflows, developers require a standardized format to specify agent capabilities, prompt instructions, system rules, and database bindings. This is where SKILL.md and the Model Context Protocol (MCP) have emerged as standard developer paradigms. SkillMD serves as the central directory for indexing, exploring, and sharing these critical agent configurations.

Our open-source registry currently tracks over 1.7 million collected SKILL.md configurations and system prompts. By compiling agent configurations from active developers on GitHub, we bridge the gap between prompt engineering research and production execution. Whether you are building agents with Anthropic's Claude Code, OpenAI's GPT-4, Google's Gemini, or local models using Ollama and LlamaIndex, standardized skill definitions ensure your agents behave predictably across different runtime environments.

What is the Model Context Protocol (MCP)?

The Model Context Protocol (MCP) is an open-source standard designed to connect LLMs to data sources, developer tools, and external environments. MCP establishes a bidirectional communication channel between client applications (like Cursor, Claude Desktop, or custom agent systems) and servers hosting data or capabilities. Standardizing instructions via SKILL.md enables LLMs to query databases, read local files, execute terminal commands, and integrate third-party APIs. SkillMD allows you to find ready-to-run MCP servers and prompt instructions for various occupations and technical tasks.

The Structure of a Professional SKILL.md File

A valid SKILL.md configuration is designed to be easily read by humans and parsed by LLMs. It contains precise system instructions, trigger conditions, required parameters, and execution examples. Below is the typical architectural blueprint of a professional agent skill:

  • Metadata & Core Scope: Declares the name of the skill, author details, target models, and a description of the capability.
  • Triggers & Intent Detection: Details semantic triggers that help the agent decide when to invoke this skill.
  • System Prompts: Explicit system-level instructions that direct the agent's behavior, personality, safety guardrails, and formatting preferences.
  • Capabilities & Tools: Lists the files, databases, or APIs the agent must access to complete the tasks.
  • Few-Shot Examples: Demonstrates real inputs and outputs, helping the model generalize behavior through in-context learning.

Optimizing Agent Workflows for Modern LLMs

Writing effective agent skills requires deep knowledge of prompt engineering. With the release of advanced reasoning models like Claude 3.5 Sonnet, ChatGPT o1, and DeepSeek-V3, prompt templates must focus on structured thinking. Developers are encouraged to use XML tags (e.g., <thought>, <context>, and <rules>) to isolate execution boundaries. Standardized prompts prevent agents from suffering from context drift, ensuring that long-running tasks remain aligned with the initial system parameters.

Exploring by SOC Occupations and Creator Profiles

What makes SkillMD unique is its taxonomy. Instead of simple text search, we parse and organize files according to the Standard Occupational Classification (SOC) system. This means you can discover skills written for Computer and Mathematical roles, Business and Financial operations, Legal, Design, and and Educational Instruction fields. By tracking creator profiles, developers can study how different teams organize their custom instructions, compare version updates, and fork public configs for specialized enterprise use cases.

SkillMD operates as a high-performance index running on a fast Go backend and a highly responsive Astro SSR frontend. All search queries execute in milliseconds, featuring smart debouncing to prevent multiple API requests while keeping user data secure. Join our community of developers to standardize your AI agent instructions and optimize your LLM prompting workflows today.

8 QUESTIONS

Frequently Asked Questions

A practical guide to agent skills: what they are, how to inspect them, and how SkillMD helps you explore the ecosystem.