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

villagesql-skills

5
@villagesql

Agent skills for VillageSQL - gemini-cli-extension; claude-code-plugin

updated Jun 2026

cairn-score-skill

5
@cairnscore

Claude Code skill that invisibly rates every external resource (WebFetch / WebSearch / MCP / curl) via PostToolUse hooks. Two rater backends: Anthropic API key or claude.ai subscription via 'claude -p'.

updated Jun 2026

droit-francais-skill

5
@brissonjo-sudo

Skill Claude Code — méthodologie rigoureuse de recherche en droit français, conçue contre 14 modes d'erreur LLM.

updated Jul 2026

deepdive

5
@Socialpranker

Deepdive skill for Claude Code — 11-phase research pipeline: plan-review gate, parallel sub-agent search with circuit breaker, claims-ledger triangulation, relevance-filtered evidence, multi-angle red team, citation verification (liveness + faithfulness), machine-checked phase completeness. 105 blocks, 29 channels, 460+ stat sources, 39 APIs.

updated Jul 2026

clover-public

5
@fourleafai

Open-source Claude Skill + MCP integration for job search and interview prep. Live job data, role-specific interview intel, voice mock interviews on four-leaf.ai.

updated Jun 2026

claudie

5
@MochiNek0

A native desktop companion for Claude Code with hook-driven animations, permission controls, Pomodoro support, and OpenAI-compatible LLM proxying.

updated Jul 2026

MediStat-Table1

5
@JeonKH81

Claude Code skill that generates a publication-ready Table 1 (baseline characteristics) for clinical research data, with study-design-aware statistical policy (CONSORT 2010 for RCT, SMD-first for observational). Outputs HTML + Word (.docx) + LaTeX.

updated Jun 2026

claude-code-plugin-ib

5
@oh-rid

Claude Code plugin for Interactive Brokers — read-only IB Client Portal Gateway lifecycle, REST + Flex Web Service skills, options/portfolio/tax tooling, order-blocking hook.

updated Jun 2026

webmcp-anything

5
@New1Direction

Turn any URL into agent-callable MCP tools. One spec-compliant MCP server endpoint, no per-site build.

updated Jun 2026

scientific-research-helper

5
@NguyenAn2812

Claude Skill for scientific research, thesis, and academic paper writing. Analyzes documents, provides detailed feedback, suggests structural improvements, citations, and academic language enhancement.

updated May 2026

ai-agent-from-zero

5
@TieGuoD

从零开始系统掌握 AI Agent 工程:70 章完整知识体系,覆盖 LLM 原理、Prompt Engineering、Tool Calling、ReAct 推理、RAG 检索增强、Memory 记忆系统、Planning 规划能力、Multi-Agent 多智能体协作、生产部署与可观测性。适合有 Python 基础的工程师,从概念到生产级架构的系统级教程。全书由 Claude Code(Anthropic 官方 CLI)生成。

updated Jul 2026

should-i-care

5
@moltenbit

Should you care about this CVE? An agent skill that triages whether a CVE applies to your environment, with sourced, verifiable reasoning.

updated Jun 2026

Ultracode

5
@KangarooKi

UltraCode is a local AI-assisted coding CLI inspired by Claude Code. It runs agentic coding workflows in your workspace with OpenAI-compatible models, function-calling tools, task planning, memory, permissions, hooks, background commands, MCP integration, and subagent support.

updated Jul 2026

Oral-English-Practice

5
@XcutingUnicorn235

Long-term spoken-English coaching tracker for Claude Code: practice by voice in the Claude app, get scored reports, a mistake bank, trend charts, and an adaptive next-session focus.

updated Jun 2026

agent-security-skill

5
@olanokhin

Native Claude Code + Codex skills for AI security review. Also ships instruction files for Cursor, Copilot, and Windsurf. Checks 33 risks: OWASP LLM Top 10 2025 · applied RAG/MCP/agent checks · OWASP Agentic 2026.

updated Jul 2026

user-dot-agents

5
@deancourse

集中版控 Claude Code 使用者層級設定(skills / hooks / settings.json / CLAUDE.md),以 symlink 連回家目錄 — 換機或重灌時 git clone + install.sh 一鍵還原。

updated Jun 2026

linkedin-profile-perfector

5
@EricTechPro

💼 Recruiter-grade LinkedIn audit + copy-paste rewrites + action plan — a skill for Claude Code & Claude Cowork. 4 goal modes.

updated Jul 2026

anchorcontext-skill

5
@loinsfest

Never lose critical data in Claude Code. Extracts only nouns and verbs from conversations — 93% compression vs 70% for summaries. Structured anchors with bidirectional links, auto-saved via hooks.

updated Jun 2026

Cyber-vibe-light

5
@AJayBBB

赛博氛围灯编程:hook light。用codex、claude code、gemini等客户端的hooks让对话状态拥有更明显的提示

updated Jul 2026

vibe-dev-plugin

5
@andrewcigan

Vibe Dev — harness-first pipeline для Claude Code: от бизнес-идеи до работающего продукта. 20 проверяемых механизмов (hooks из коробки) + онбординг под пользователя (/setup).

updated Jul 2026

prompt-engineering-skill

5
@PhAlves23

Prompt Engineering skill for Claude Code — rewrites and optimizes prompts using proven techniques (Anthropic, OpenAI, Gemini, The Prompt Report).

updated Jul 2026

peanut-illustrations

5
@aishwaryaashok14

Turn a short prompt into one clean, hand-drawn concept illustration starring a deadpan peanut — an agent skill for Claude Code and OpenAI Codex.

updated Jul 2026

ContextTax

5
@PavelTkachenk0

Measure the context-window tax an MCP server charges your AI agent — the real token cost of its tool schemas + responses. Ground truth (Anthropic count_tokens) or keyless estimate. Cross-platform single-file CLI.

updated Jun 2026

tutor-de-skills

5
@angelapaia

🎓 Tutor interactivo para aprender a crear skills de Claude desde cero (escalera de 5 niveles). Skill creada por Luis Salgado · SalgadoIA, compartida por IA Masters Academy.

updated Jul 2026
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