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

opus-compatibility-scanner

3
@readysolutionsai

Free Claude Code skill that audits CLAUDE.md, AGENTS.md, subagents, settings.json, hooks, and Anthropic SDK call sites for Claude Opus 4.6 ⇄ 4.7 compatibility issues. 70 patterns. MIT.

updated May 2026

claude-latex-skill

3
@hameefy

A Claude skill for producing compilable LaTeX in computational and applied mathematics — theorems, proofs, algorithms, convergence analyses, numerical experiments and beamer presentations

updated May 2026

webtest-orch

3
@CreatmanCEO

Token-efficient e2e orchestration skill for Claude Code: explore once, replay deterministically. Playwright + axe-core + run-diff. Tests stay in your repo. MIT.

updated May 2026

DevIsland

3
@nangchang

macOS Dynamic Island for Claude Code, Codex & Gemini CLI — real-time hook interception and approval UI

updated Jun 2026

anthropic-api-solutions

3
@alexnaranjom

Hands-on exploration of the Anthropic Claude API using Python and Jupyter notebooks. Covers multi-turn conversations, system prompts, temperature tuning, structured tool use, and streaming responses. Demonstrates practical LLM integration patterns for production workflows.

updated May 2026

pixeltamer-gpt-image-skill

3
@gabelul

Image generation skill for Claude Code, Codex CLI, OpenCode, Cursor and 50+ AI coding agents. Two backends (OpenAI API or codex CLI signed in to ChatGPT subscription), three modes (generate, edit, compose up to 16 references), six production recipes for gpt-image-2.

updated Jun 2026

scenelens

3
@ravindranathpathi

Give Claude a smarter video input. Scene-aware frame extraction, per-frame OCR, auto-chunked Whisper transcripts. Skill for Claude Code, claude.ai, and Codex.

updated May 2026

social-skills

3
@jedi4ever

Social-web skills for AI agents — read HN, Reddit, X, LinkedIn, articles, papers as structured context

updated May 2026

llm-pointer-extension

3
@Andy671

Point at any element on the page. One click copies a structured reference (React component, selectors, texts) for Claude Code, Codex, or any other coding tool.

updated May 2026

crawl-budget-manipulation

3
@seouzmanigulsaharslan

SEO crawl budget manipulation methodology as a Claude Skill — fast indexing for low-competition long-tail keywords

updated May 2026

gardenkit

3
@khou

Claude Code hooks + skills for a self-maintaining second brain in plain markdown.

updated May 2026

apple-search-ads-mcp

3
@AppVisionOS

MCP server exposing the full Apple Ads (Search Ads) Campaign Management API v5 — 74 typed tools

updated May 2026

claude-code-coengineer

3
@Str1k3-68

Stop-hook reminder for Claude Code that enforces second-source review with codex exec on spec sheets, implementation plans, and code phases.

updated May 2026

skill-validator

3
@Anvil-Code

Audit any Claude Code SKILL.md file. Scored report with critical issues, triggering score, and exact fixes. Free skill-engineering tool by Anvil & Code.

updated May 2026

description-optimizer

3
@Anvil-Code

Optimize Claude Code SKILL.md description fields for maximum trigger reliability. 3 scored variants, clear recommendation. Free skill-engineering tool by Anvil & Code.

updated May 2026

skills-marketplace

3
@Anvil-Code

Production-grade Claude Code skill engineering tools. Scaffolder, validator, security auditor, tester, optimizer and more. Build once, ship reliably.

updated May 2026

brain-ai

3
@Zatto-Software

Token-efficient memory & multi-agent orchestration framework for Claude Code, Codex, Cursor. Built on AGENTS.md v1.1 + Karpathy LLM Wiki + Anthropic Agent Skills.

updated May 2026

wp-stack-skill

3
@tranminhmanh

Claude Code skill — WordPress + Elementor + MCP toolkit. 24+ production-tested patterns, 4 workflows, PHP recipes (clone-transform, OG image, SEO audit, SMTP relay).

updated May 2026

claude-5h-window-spread

3
@Digital-Process-Tools

Stop hitting your Claude Pro/Max 5h cap. Spread your day across more windows. Skill + Python script + claude-code-scheduler dependency.

updated May 2026

create-project

3
@buzdyk

Claude Code skill that scaffolds a docs-first project tree, git hooks, and seed files from a four-question intake.

updated May 2026

oura-ring-mcp

3
@FelixWag

Talk to your Oura Ring data through Claude. Local SQLite mirror, 14 MCP tools, OAuth2, ~5-minute setup.

updated May 2026

claude-code-deepseek-3p-parity-skill

3
@kingcharleslzy-ai

修复 Claude Code Desktop 接入 DeepSeek/第三方模型后能力缺失、联网失败、频繁权限弹窗的 Claude Skill

updated May 2026

pm-daily-brief-skill

3
@A-cat-with-carrots

AI 产品经理每日情报简报 Claude Skill — 一句『今天有啥新的』 → 三源融合(PH/GH/HN)+ 用户画像加权 + TL;DR 60 秒摘要(🚀机会/⚠️风险/🌊趋势)+ Top 3-5 深读(每条带 🎯 今天具体动作)+ 全列表 [跟进/关注/噪音] triage + 跨源 pattern 综合,中文 Markdown/PDF 双输出

updated May 2026

paperclip-plugin-agent-usage

3
@lacymorrow

Track AI provider usage quotas in Paperclip — dashboard widget, usage page, agent tools

updated May 2026
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