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

8241entries
★ starsA–Z name

pm-os

27
@shaan-ad

The Product Manager's Operating System. A Claude Code plugin with 27 AI-powered skills for every PM workflow.

updated Jul 2026

claude-brain

27
@mikeadolan

Persistent memory for Claude Code. Local SQLite + MCP + hooks.

updated Jul 2026

self-care

27
@Not-Diamond

Agent trace analysis and context remediation plugin for Claude Code. Detects quality issues in your AI agent traces — goal drift, hallucinations, missed actions, and more.

updated Jun 2026

claude-code-token-saver

27
@ww-w-ai

45% cost reduction measured. The only Claude Code plugin built from CC source analysis — cache expiry prevention, SubTask auto-delegation, zero-cost context restoration, real-time dashboard. Max Plan + API pay-per-use.

updated Jul 2026

founder-skills

27
@firatcand

Claude Code skills for founders building B2B SaaS — covering GTM, product, engineering, design, and content.

updated Jul 2026

manusiawi

27
@abualif120

Claude skill that strips AI writing patterns from Malaysian BM text. 32 BM patterns + Indonesian intrusion detection + 24 English patterns.

updated Jun 2026

cursor-plugin-cc

27
@freema

Use Cursor CLI from Claude Code to delegate coding tasks to Composer 2.5+ and other Cursor models.

updated Jul 2026

grounded

27
@Pinperepette

Claude Code hooks that enforce tool usage, prevent hallucinations and protect your codebase

updated May 2026

drama-director-skill

27
@kianaliang-dev

One API key, two calls: GPT Image 2 + Seedance 2.0 comic-drama workflow skill.

updated Jul 2026

JanuScope

27
@giancarloerra

Local-first MCP policy proxy. Tool-block, SQL-mutation gate, PII redact, audit, rate-limit, OpenTelemetry, vault secrets, first-use quarantine, schema pre-inject. No hosted gateway. One YAML Lens wraps any MCP, 20 included (Postgres, MySQL, MongoDB, GitHub, Stripe, Snowflake, etc.). 84% fewer tokens, ~3x faster, holds PII leaks. AGPL or commercial.

updated Jul 2026

lexis

27
@R0MADEV

Lexical + structural code search MCP server for Claude Code, Cursor, Windsurf and any MCP client. Gives AI assistants 28 precise search tools so they find the right code fast 80% fewer tokens per task. No vectors, no embeddings, just ripgrep.

updated Jun 2026

Proteus

27
@Vyntra-Research

Proteus is a plugin for Claude Code, Codex and Opencode, plus a local runtime, for structured, continuous vulnerability research.

updated Jul 2026

beatos

27
@averatec0773

Local-first beat library built for producers — catalog, BPM/key analysis, license tiers & PDFs, tagged-MP3 + loopkit export, and assisted multi-platform publishing. Chat with your catalog via a built-in AI Agent (Claude · ChatGPT · DeepSeek), or wire it to any MCP client. Desktop + web.

updated Jul 2026

style-alchemy

27
@snowmays

把一批文章样本自动炼化成可复用的写作风格档案,并生成一个按该风格写作的专属 Claude skill。/ A Claude Code skill that distills writing samples into a reusable style profile and forges a dedicated writing skill.

updated Jul 2026

Velith

27
@epicsagas

AI-native publishing system — build books like software. 6-phase pipeline from blank page to EPUB/PDF, with 16 skills, 7 agents, and 8 genre templates. Claude Code plugin.

updated Jul 2026

figmosha2

27
@denysosadchyi

Drive Figma from CLI / Claude Code via a local WebSocket bridge to a custom plugin. 150-950x faster than browser automation.

updated Jul 2026

gaios

27
@alirezarezvani

Open-source AI Operating System (AIOS) blueprint for Claude Code & Codex — turn any agent into your personal second brain + Chief of Staff: skills, self-verifying workflows, a second-brain wiki, and deterministic tools. Fork it for any role or domain.

updated Jul 2026

handoff

27
@arimet

Claude Code skill that quizzes you on the code Claude wrote — verify you understood it before shipping.

updated Jul 2026

callimachus

27
@BetaBots-LLC

One local, searchable index of your AI coding-agent history Claude Code, Codex, Cursor, Gemini & more. Keyword + semantic search, MCP server, CLI & VS Code extension.

updated Jul 2026

fable-skills

27
@benjaminard

A skill library that teaches Claude Opus the working disciplines of Claude Fable 5. Move the checkpoints, not the capacity.

updated Jul 2026

graphkit

27
@levi-qiao

Graph engineering made concrete: run long coding tasks as a graph of agent nodes (executor + clean-context supervisor, more roles planned), not one drifting loop. 从 loop engineering 到 graph engineering。Claude Code skill · MIT · EN/中文

updated Jul 2026

cfbd-mcp-server

26
@lenwood

An MCP server enabling CFBD API queries within Claude Desktop.

updated Apr 2026

wind

26
@fluttersdk

Tailwind CSS for Flutter — classes like flex, p-4, dark:bg-gray-800 compose into widget trees. MCP server + Claude Code skill for AI agents.

updated Jul 2026

mcp-telegram

26
@beautyfree

Telegram MCP server (MTProto). Connect Claude, Cursor, Claude Code, VS Code, Codex, Cline, Windsurf to a real Telegram account — read/search/send messages, moderate channels, manage stories/contacts/folders, transcribe voice, and call any raw MTProto method. Browser-based sign-in. 100+ tools.

updated Jul 2026
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