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

8281entries
★ starsA–Z name

claude-code-self-autopsy

★ 6
@mustfaunlu

Leaked Claude Code (Claude CLI) full architecture — 1,902 files, 512K lines, 89 feature gates, 39 tools, 101 commands. Analyzed by Claude itself. All numbers verified.

updated Jun 2026

claude-code-prompt

★ 6
@xiufengsun

Complete reverse-engineered documentation of all Claude Code system prompts, tool prompts, and product architecture with Mermaid diagrams

updated Sep 2026

skill-creator-plus

★ 6
@yaniv-golan

Based on Anthropic's skill-creator — with bug fixes, working Cowork support, and official best practices baked in. Claude skill for creating, testing, and improving other Claude skills.

updated Oct 2026

visual-annotator

★ 6
@wernerstrauch

Chrome extension to annotate any web page, capture screenshots & console logs, and copy structured markdown — built for AI coding agents like Claude Code, Cursor, Copilot, and more.

updated Oct 2026

token-guard

★ 6
@dockplusai-ops

Automatic Claude Code hooks to reduce token waste — block heavy files, context warnings, cost logging

updated May 2026

studiomeyer-memory

★ 6
@studiomeyer-io

AI memory server with 56 tools. Knowledge Graph, semantic search, session tracking, multi-agent support. Free tier available.

updated Sep 2026

Veriflow-agent

★ 6
@bjwanneng

VeriFlow-Agent: Agent-based RTL Design Pipeline A LangGraph-powered RTL design automation tool that transforms hardware design from manual coding to agent-based workflows. Features 7-stage pipeline (Architect → Synthesis), multi-backend LLM support (Claude/Anthropic/LangChain), and three interfaces: Claude Code Agent, Web UI, and CLI.

updated Aug 2026

writer-skill

★ 6
@zdyya

Writer skill for Claude Code: from idea to publish-ready article with multi-role review

updated Oct 2026

claude-code-setup

★ 6
@kmshihab7878

Public-safe Claude Code operating setup with commands, skills, agents, hooks, MCP governance, context-budget discipline, and automated secret/public-safety validation.

updated May 2026

terminal-arcade

★ 6
@Amal-David

A retro arcade for your terminal — pure Python, zero deps, curses-based. Six games + interactive bookshelf, plus drop-in Claude Code & Codex hooks that surface a curated book quote every Nth tool call.

updated Aug 2026

cx

★ 6
@magidandrew

Claude Code Extensions. Unlock the full power of Claude.

updated Jul 2026

superpowers-flow-enforcer

★ 6
@Rainnystone

Claude Code Plugin that enforces superpowers workflow through hooks - preventing you from skipping brainstorming, TDD, review, and verification phases

updated Jul 2026

dexterity

★ 6
@nshkrdotcom

Code Intelligence: Token-budgeted codebase context for Elixir agents. Solves context window limitations by providing a deterministic Elixir semantic graph and agent-ready Repo Map for LLMs.

updated Jul 2026

claude-memory-bridge

★ 6
@LewenW

Cross-project memory sharing for Claude Code. One command install: claude mcp add memory-bridge -- uvx claude-memory-bridge

updated Aug 2026

commander

★ 6
@KevinZai

CC Commander — Master Claude Code instantly. The Fable Method: 12 enforceable gates so any model delivers Fable-shaped results. 71 plugin skills, 22 specialist agents, 23 lifecycle hooks (39 handlers). Free for now. commanderplugin.com

updated Oct 2026

Cowork-Starter-Kit

★ 6
@jmlozano1990

Claude Cowork builds you a personalized AI workspace from plain language — then it maintains itself: notices friction, proposes fixes you approve. 25 vetted, SHA-pinned skills.

updated Sep 2026

vibecoding-ci-kit

★ 6
@Apri1qing

GitLab CI kit for Claude Code: merge repo/ into your app repo for AI code review on feature/* and integration/* MRs, @claude comment-triggered fixes, hooks, and memory-bank workflows.

updated Jul 2026

plugin-auto

★ 6
@guiorioli

A Claude Code PreToolUse hook that adds intelligent permission evaluation to every tool call.

updated Aug 2026

claude-code-bible

★ 6
@sebyx07

Proven patterns for structuring any project so Claude Code operates at maximum autonomy — CLAUDE.md, skills, hooks, permissions, scripts, memory, MCP, monorepos.

updated Oct 2026

behavioral-design-claude-skill

★ 6
@valeria-adiatullina

A thinking BeSci partner I built because I myself needed one. Walks you through the full behavioral design cycle — defining behavior, diagnosing barriers, designing interventions, checking for backfire. Claude skill, 30-second install. Help me improve it — feedback form below.

updated Jul 2026

web-novel-master

★ 6
@tinylion1024

中文网文 AI 创作工作流 | Claude Code & OpenClaw skill for outlines, characters, serialized chapters, and continuity checks.

updated Sep 2026

AI-Agent-Sound-Notification

★ 6
@mayerwin

VS Code extension that plays a distinct sound when Claude Code requires your authorization — configurable delays, back-off repeats, and Windows Focus Assist awareness.

updated Jul 2026

llm-council

★ 6
@YonasValentin

A Claude Code skill that pressure-tests any decision through 5 AI advisors with anonymous peer review and a chairman synthesis

updated Sep 2026

automotive-syseng

★ 6
@duonghvu

AI-powered automotive systems engineering skill: INCOSE/EARS requirements analysis, MISRA-C compliance, SAE J3016 ADAS levels, ISO 26262 ASIL, AUTOSAR, SOTIF. Works with Claude Code, ChatGPT Custom GPTs, Cursor, and any AI tool.

updated Sep 2026
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