awesome-claude-skills
ComposioHQ · ComposioHQ/awesome-claude-skills
This curated list provides over 1000 Claude Skills and Plugins, including a connect-apps plugin that enables Claude to integrate with and take actions across 1000+ external applications.
A curated list of awesome Claude Skills, resources, and tools for customizing Claude AI workflows
Preview
What you can do with it
- Connect your Claude agent to Slack to send messages or create channels automatically.
- Automate email sending from your Claude agent using an integrated email service.
- Create issues or tasks in project management tools directly from Claude.
Try asking your agent
- “Send an email to team@example.com with subject 'Meeting Reminder' and body 'Don't forget our sync-up at 3 PM today.'”
- “Create a new Trello card in the 'Development' board with the title 'Investigate new UI bug' and assign it to John Doe.”
- “Post an announcement to the #general channel in Slack: 'Happy Friday, everyone! Don't forget to submit your weekly reports.'”
Safety check
Usable, but read the notes first.
- ●No clear license: check with the author before using it in a commercial product.
Automated scan of the repo files. Always review code you run.
From the README
Awesome Claude Skills
A comprehensive and curated list of 1000+ production ready and practical Claude Skills and Plugins for enhancing productivity across usecases on not just Claude.ai, Claude Code, but also across coding agents like Codex, Cursor, Gemini CLI, Antigravity and more.
Give your skills real-world actions
Skills tell your agent how to work. An MCP Gateway gives it secure access to the tools it needs.
Composio MCP Gateway provides a single MCP endpoint for 1,000+ integrations with built-in authentication, team-based access controls, audit logs, and production-ready reliability.
Quickstart: Connect Claude to 1000+ Apps
The connect-apps plugin lets Claude perform real actions - send emails, create issues, post to Slack. It handles auth and connects to 1000+ apps using Composio under the hood.
1. Install the Plugin
claude --plugin-dir ./connect-apps-plugin
2. Run Setup
/connect-apps:setup
Paste your API key when asked. (Get a free key at dashboard.composio.dev)
3. Restart & Try It
exit
claude
Want skills that do more than generate text? Claude can send emails, create issues, post to Slack, and take actions across 1000+ apps. See how →
If you receive the email, Claude is now connected to 1000+ apps.
Contents
What Are Claude Skills?
Claude Skills are reusable instruction packages that teach an AI agent how to handle a specific class of tasks. Each skill is a folder containing a SKILL.md file with YAML frontmatter (name, description) and Markdown instructions, optionally bundled with scripts, references, and assets. Anthropic introduced the format in October 2025 and released it as an open standard in December 2025; it's now supported by Claude Code, Claude.ai, the Claude API, OpenAI Codex, Cursor, Gemini CLI, Antigravity, and Windsurf.
Skills load progressively. At session start, the agent sees only each skill's name and description — roughly 100 tokens per skill. The full SKILL.md body (typically under 5,000 tokens) loads only when the agent decides the skill is relevant to the current task. Auxiliary files in scripts/ and references/ load on demand. This is what lets a single agent host hundreds of skills without bloating its context window.
Skills are not MCP servers and not tools. MCP defines how an agent connects to external systems — auth, transport, tool discovery. Tools are the individual functions an agent invokes. Skills define the workflow — what to do, in what order, with what guardrails — once the agent has the connections and tools it needs. In production, all three layers run together: MCP for access, tools for actions, skills for behavior.
Skills
Document Processing
- docx - Create, edit, analyze Word docs with tracked changes, comments, formatting.
- pdf - Extract text, tables, metadata, merge & annotate PDFs.
- pptx - Read, generate, and adjust slides, layouts, templates.
- xlsx - Spreadsheet manipulation: formulas, charts, data transformations.
- Markdown to EPUB Converter - Converts markdown documents and chat summaries into professional EPUB ebook files. By @smerchek
- Master Claude for Legal - Skill pack for legal teams. NDA triage, multi-party version diff, citation verifier, meeting brief, and the Friday-newsletter status synthesis pattern. Includes 10 reference docs (privilege, verification, long documents, practice areas) and 3 firm templates. Built from the public Anthropic Claude for Legal Teams webinar dataset. By @sboghossian
Development & Code Tools
- artifacts-builder - Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui).
- aws-skills - AWS development with CDK best practices, cost optimization MCP servers, and serverless/event-driven architecture patterns.
- building-blog - Adds an SEO-first, i18n-ready blog to a Next.js + Sanity site via a 40-question intake, a one-page plan, and a 20-section spec. Includes a generator for AI hero images via Gemini 3 Pro Image (Nano Banana Pro). By @BuildShipGrowRepeat
- Changelog Generator - Automatically creates user-facing changelogs from git commits by analyzing histo