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

github-tech-scanner

3
@claude-access

Scans GitHub repos for languages and frameworks — Claude Code skill

updated May 2026

commander

3
@KevinZai

CC Commander — Master Claude Code instantly. 61 plugin skills, 22 specialist agents, 23 lifecycle hooks (38 handlers), dynamic workflows + /ccc-ultracode on Opus 4.8. Free for now. commanderplugin.com

updated May 2026

claude-bug-bounty-stack

3
@ArianHobson333

Complete Claude Code setup for bug bounty hunting — 99 skills, 22 slash commands, 10 agents, hooks, and 4 vendored toolkits (shuvonsec, transilience, Decepticon, hexstrike-ai)

updated May 2026

claude-doctor

3
@alenazaharovaux

Structural guardrails for Claude Code — hook-based in-moment reminders for production actions, architectural questions, and completion claims

updated May 2026

agent-harness

3
@markhazlett

Portable Claude Code agent infrastructure — hooks, skills, agents, and sprint planning workflow for any project

updated May 2026

growth-coach

3
@Moonveil-AI

AI growth consultant for technical founders. A Claude Code skill powered by 200+ battle-tested growth playbooks.

updated Apr 2026

claude-reflex

3
@alumkal

Hook-based guardrails and prompt injection for Claude Code.

updated Apr 2026

claude-code-starter

3
@learn-with-santosh

🤖 Claude Code starter kit — skills, agents, hooks & CLAUDE.md templates for full-stack developers. Public + personal use.

updated May 2026

yt-summary

3
@ultr4nerd

Summarize YouTube videos with yt-dlp, cache transcripts locally, and answer follow-up questions without re-downloading. Works across Claude Code, Cursor, OpenCode, and any agent implementing the Anthropic Agent Skills Specification.

updated Apr 2026

pie-ai-agent

3
@WiseriaAI

Browser-automation agent for Chrome — natural-language tasks executed through native tool calling, scoped Skills, CDP keyboard control, and a confirm-before-act security model. BYOK across 8 LLM providers (Claude, GPT, Gemini, DeepSeek + 4 China-region).

updated Jun 2026

narthex

3
@fitz2882

Prompt-injection defenses for Claude Code. A PreToolUse Bash hook blocks compositional credential-exfiltration shapes (secret read plus network, env dump to network, remote script to shell, reverse shells). A sanitizing MCP server wraps untrusted URLs and files in sentinels, strips invisible unicode, flags jailbreaks.

updated May 2026

behavioral-design-claude-skill

3
@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 May 2026

nova-agent

3
@lekhanpro

AI agent on Android — 27 native phone tools (camera, GPS, SMS, sensors, files), 3 AI providers (OpenAI · Anthropic · Gemini), persistent memory, streaming. Free via Gemini. No root.

updated Apr 2026

xiaoer-artstudio-design

3
@Jane-xiaoer

Design methodology reproduction kit from 小耳 Art Studio — Japanese-editorial aesthetic portable across Claude Code / Hermes / openclaw / any LLM. CC-BY-4.0.

updated May 2026

deslop-ai-lint-skill

3
@shessenauer

Finds and removes AI slop patterns from documents.

updated May 2026

agent-keyring

3
@verging-ai

Open-source desktop tool for managing LLM API keys and syncing them into local AI agents and clients.

updated May 2026

AI-Agent-Sound-Notification

3
@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 May 2026

Awesome-ccIDE

3
@sophiaashi

Native macOS IDE for Claude Code sessions: full-text search across 200+ sessions, one-click resume, multi-terminal quad-grid, and a 5-tab right sidebar (skills / shortcuts / CLAUDE.md / launchd tasks / notes).

updated May 2026

storybook-codex

3
@ychampion

Plugin-ready Codex skill for creating and upgrading React Storybook stories with controls, autodocs, and blueprint-driven heuristics.

updated Apr 2026

hermes-on-digitalocean

3
@cobibean

Claude Code / agent skill: deploy a Hermes Agent to a DigitalOcean droplet (Ubuntu 24.04, gateway-as-systemd, OAuth caveats included).

updated May 2026

skills

3
@air-gapped

Claude Code plugin marketplace — 20+ installable reference skills for vLLM, Kubernetes, release engineering, and skill authoring.

updated Jun 2026

claude-memory-reminder

3
@moyunliuyin

Persistent tiered memory & reminder notebook skill for Claude Code and codex. Zero-dependency bash hook, multi-window dedup, natural-language reminder add/complete/cancel.

updated May 2026

MAMI-claude-ollama-hook

3
@alemarzosw

Claude Code Stop hook — translates responses locally via Ollama to save API tokens.

updated Apr 2026

review-prod-ready-skill

3
@sakost

A Claude Code skill that dispatches 7 specialized parallel reviewers for comprehensive production-readiness code review

updated Apr 2026
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