Open-Source Directory — Claude / Anthropic

Claude
Tools

A curated index of extensions, plugins, MCP servers, hooks, and integrations for Claude — discovered from GitHub and refreshed daily.

Repository Growth — Last 30 Days

8237entries
★ starsA–Z name

claude-hook-kit

3
@Payshak

TypeScript SDK for building Claude Code hooks — typed, testable, composable

updated Mar 2026

unofficial-webflow-mast-skill

3
@fernandocomet

A Claude skill for Webflow projects built on the Mast Framework

updated Jun 2026

gsd2-provider-claude-code

3
@TheReaperJay

Claude Code provider extension for GSD2 — access Claude models through Claude Code CLI subscription

updated Apr 2026

gitnagg

3
@Ryu0118

🤛 CLI tool for Claude Code Hooks that nags you to commit when uncommitted changes exceed configurable thresholds

updated Jul 2026

content-creation-skill

3
@arturseo-geo

Content creation skill for Claude Code — blogs, landing pages, email sequences, social media, video scripts, newsletters, case studies, whitepapers, content calendars, editorial briefs, platform-specific formats, repurposing workflows. By TheGEOLab.net

updated Apr 2026

token-optimizer-skill

3
@arturseo-geo

Token cost optimization skill for Claude Code — model routing (Opus/Sonnet/Haiku), extended thinking tuning, prompt caching, subagent cost management, CLAUDE.md audit checklist, MCP token audit, per-session cost tracking. By TheGEOLab.net

updated Jul 2026

claude-adapt

3
@kimbelas

Claude Code configuration tool. Score your codebase, generate optimized CLAUDE.md, install skill packs, and keep config evolving. Works on any repo.

updated May 2026

github-showcase

3
@Ublaze

Claude Code skill — Generate LinkedIn & Facebook posts from any GitHub project as a styled Word document with embedded screenshots

updated Apr 2026

elvish-decoder

3
@ting9093wei

注音鍵盤誤打偵測與轉換工具,用於 Claude Code hook

updated Mar 2026

diffchestrator

3
@Andrevops

VS Code extension for multi-repo Git orchestration — built as a companion to Claude Code. Stage, review, diff, and commit across dozens of repos from one sidebar.

updated Jun 2026

knowledge-os

3
@coderphonui

Your second brain on plain Markdown. Capture articles, videos & ideas. Query by meaning with local semantic search. 15+ AI skills for brainstorming, weekly reviews, slide decks, and more — all running in VS Code with Claude Code / Github Copilot extension.

updated May 2026

claude-skills

3
@MakiDevelop

Reusable skill packs for Claude Code CLI — 14 ready-to-use skills for data analysis, image generation, career tools, and more.

updated Jun 2026

blueprint

3
@skaisser

Up to 200x faster. A complete SDLC pipeline for Claude Code — 27 skills, 15-rule audit hook, parallel subagents, zero paid dependencies.

updated Jul 2026

ucp-client

3
@OmnixHQ

Capability-aware TypeScript client for any UCP-compliant server — gives AI agents only the tools their connected server supports

updated May 2026

maxs-claude-skills

3
@whateverforever

Some Skills for Claudius

updated Jul 2026

commitmaxxing-hook

3
@longevityboris

Claude Code Stop hook that nudges granular commits after every turn. Guarded for rebases, merges, detached HEAD. Pure bash, zero deps.

updated May 2026

trimkit

3
@josephfung

Claude Code hooks, agents, and skills. Install once, benefit everywhere. Guardrails and utilities that travel with you across every project.

updated May 2026

claude-plugin-marketplace

3
@barnburner121

The largest Claude Code plugin marketplace. 500 plugins, 600+ developer tools in one MCP server. Security, testing, DevOps, databases, frontend, backend, ML/AI, mobile, cloud, and more.

updated Jun 2026

decisiontree

3
@SimonTheSalesBooster

Decision Tree skill for Claude Code — interviews you relentlessly before building

updated May 2026

claude-skills

3
@asinadarsh

154+ plug-and-play skills for Claude Code. Install in one command.

updated Apr 2026

alpha-style

3
@PSkinnerTech

AI design skill suite for coding agents (Cursor, Claude Code, Codex, Gemini) — encodes Alpha School's production design language into multi-provider skill bundles. Built on Anthropic's frontend-design.

updated Jul 2026

CLAUDE-SPINNER-WORDS

3
@Amey-Thakur

Autonomous technical registry and configuration workstation for the Claude Code CLI state indicator mechanism.

updated Mar 2026

ai-seo

3
@linxumoney

🤖 AI-SEO — 让网站被 ChatGPT/Perplexity/Claude 引用的优化工具 | GEO optimization for AI search engines

updated Jun 2026

drupal-contrib-workbench

3
@AJV009

Automated Drupal.org contribution workflow powered by Claude Code — skills, subagents, and mechanical enforcement hooks.

updated Jul 2026
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