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

8250entries
★ starsA–Z name

agntree

2
@subhashkhileri

VS Code & Cursor extension to manage AI coding agent sessions across git repositories and worktrees. Fork sessions, track changes, run quick actions. Supports Claude Code — extensible for other agents.

updated May 2026

bearly

2
@beorn

Claude Code plugins and extensions

updated Jun 2026

synapse-cli

2
@SynapSync

Synapse CLI is a neural orchestration tool that connects, synchronizes, and deploys AI agents and capabilities across multiple providers from a single command line.

updated Feb 2026

claude-code-extensions

2
@hexcreator

Add custom tools to Claude Code with simple YAML definitions. No MCP required.

updated Jan 2026

anti-fraud-skill

2
@Art-of-Technology

Multi-layered anti-fraud and bot detection system for registration flows

updated May 2026

claude-error-learning

2
@jonathondouglasyager-debug

Automated error detection and prevention for Claude Code via hooks

updated Apr 2026

ai-rules

2
@SpaceMalamute

Supercharge Claude Code with framework-specific rules, skills, and best practices. Angular, Next.js, NestJS, .NET, FastAPI, Flask.

updated Mar 2026

wp-php-architecture-claude-skill

2
@xonack

WordPress PHP Architecture skill for Claude Code - Repository pattern, service layer, DDD, SOLID principles adapted for WordPress

updated Mar 2026

snakehug

2
@Anaconda-Sandbox

Automatic conda/mamba/pixi environment activation for agents

updated Mar 2026

IDIIDO

2
@VisualFinesse

This is a claude code, codex, or openrouter extension to automate AI TODO tasks

updated Feb 2026

git-hit-archive

2
@osbornecox

Pre-built database of 44k+ AI/ML GitHub repos (Python & TypeScript) with semantic search. Ready for RAG, research, and Claude Code skill.

updated Apr 2026

claude-code-web-extension

2
@aantn
updated Mar 2026

pda-platform

2
@antnewman

126 MCP tools for UK government IPA Gate Review assurance. Connects Claude to risk registers, earned value, benefits realisation, gate readiness, and IPA benchmarks.

updated May 2026

zco-claude-skills

2
@vmico

Centralized Claude Code configuration, custom skills/rules/commands/hooks/scripts

updated Mar 2026

permission-patrol

2
@stillcuriouscat

AI-powered security guard for Claude Code permission requests

updated Feb 2026

cc-toolgate

2
@butterflyskies

PreToolUse hook for Claude Code — compound-command-aware Bash validation

updated May 2026

my-claude-code

2
@NBStarry

My Claude Code configurations, scripts, and extension templates

updated Apr 2026

jeeves

2
@eddmann

Just ask Jeeves. Personal AI assistant living in Telegram - powered by OpenAI, built on Bun. Self-extending via skills and persistent memory.

updated Apr 2026

claude-code-prompt-recorder

2
@irmowan

A Claude Code hook plugin that records every user prompt with a timestamp

updated Mar 2026

ccgate

2
@ai-fresh

macOS menu bar app for managing Claude Code sessions, permissions, and auto-accept hooks

updated Mar 2026

capcheck-architecture

2
@Margwe19

🛠️ Build a robust fact-checking platform with CapCheck's architecture, featuring advanced AI tools for real-time claim verification.

updated Jun 2026

win11-admin-skill

2
@optimaquantum

Claude Code Skill for Windows 11 system administration and hardening. Registry, services, GPO, debloating, CIS/STIG hardening, Defender, firewall, and more.

updated May 2026

claude-agent-sdk-skill

2
@foksa

Claude Code skill for building apps with the Claude Agent SDK — query options, hooks, MCP servers, multi-turn, streaming, permissions, structured output, sessions

updated Feb 2026

claude-security-linter

2
@its-animay

A pre-tool-use hook plugin that automatically scans code for security vulnerabilities before Claude writes it to disk.

updated May 2026
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