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

8236entries
★ starsA–Z name

AdoptViaAI

2
@tedzoe

Claude API CLI demonstrating all 5 CCA-F certification domains — chat, tool use, agents, MCP, and safety guardrails in a single production-pattern tool.

updated May 2026

Progressive-Discovery-Spine

2
@drewmattie-code

The missing architectural layer above MCP. Production patterns for LLM agents wired to enterprise systems at scale — without context blowout, hallucinated tool selection, or audit gaps.

updated Jun 2026

multi-agent-coordination

2
@RahimjonovBoburjon

Coordinate multiple Claude Code terminals on one project — file locks, shared kanban, planner approval gate. Battle-tested in production.

updated Jun 2026

jdfit

2
@snowmays

JDfit · 简历岗位优化助手 — Claude Code Skill:智能匹配 JD 与简历,用 Word 原生批注解释每处修改的优化逻辑

updated Jun 2026

VibeProxyPlus

2
@Drjacky

Native macOS menu bar app to use your Cursor, Claude Code, ... subscriptions with AI coding tools

updated Jun 2026

elevate

2
@welshofer

A Claude skill that audits a codebase end-to-end and produces a top-5-per-dimension improvement plan across seven lenses (Performance, Functionality, Stability, Reliability, Security, Usability, Attractiveness).

updated Jun 2026

seo-skills-agent-toolbox

2
@Mary2241

⚡ 2026 SEO Audit & Content Agent – Claude for SE Ranking MCP

updated Jul 2026

rx-browser-bridge-mcp

2
@arikw

Drive your own already-open browser from your AI coding agent (any MCP client) via a self-hosted relay + MV3 extension. Tools: screenshot (+full-page), navigate, click, fill, query, new_tab, evaluate (arbitrary JS, even on CSP-locked sites via userScripts). Toolbar activity flash + sqlite audit log for visibility.

updated May 2026

autopilot

2
@sam-siavoshian

Claude Code skill that ships a full production feature while you sleep. No push, you review.

updated Jul 2026

genesis-mcp

2
@adeoluwaadesina

A self-extending Model Context Protocol (MCP) server. Ships with one tool that creates other tools — describe what you need, get a working tool registered live.

updated Jun 2026

mcp-teaching-kit

2
@timothywarner-org

Course-ready CLI reference for the Model Context Protocol. Demonstrates all six MCP primitives (tools, resources, prompts, sampling, elicitation, roots) wired to Anthropic's Claude. Adapted from Anthropic Academy for O'Reilly Live Training.

updated Jun 2026

grill-me-store-decisions

2
@vbalasu

Claude Code skill: interview-style design review that persists the full decision tree + SaaS-vs-self-host cost tradeoffs to decision-tree.md. Fork of @mattpocock's grill-me.

updated Jul 2026

RatatoskrSkill

2
@krzysztofdudek

A communication layer between you and your codebase: it keeps your AI coding agent talking in plain language — no jargon, no invented timelines — with one clear yes before anything irreversible.

updated Jul 2026

Stop-Slop-v3

2
@Julz7727

v3 of the positive-routing anti-slop skill. Integrates WikiProject AI Cleanup's pattern catalog into v2's editorial layer without breaking the architectural principle.

updated Jul 2026

api-vs-selfhost-skill

2
@artvandelay

Anthropic-standard Skill — decide API-vs-self-host LLM costs and fine-tune ROI from any agent context (Claude Code, Cursor, Codex). Live GPU+API prices, deterministic local math.

updated Jun 2026

tiny-claude-code

2
@Loveca

A hands-on tutorial for building a Claude Code-style coding agent with tools, memory, hooks, subagents, and plugins.

updated Jul 2026

claude-orchestration-skill

2
@WonjunJoe

Claude Code skill — multi-agent orchestration loop (worker + adversarial validators) for complex production work

updated Jun 2026

agent-skill-uselink

2
@compilet-dev

Agent skills for publishing engineering docs, repo summaries, PR digests, changelogs, API docs, onboarding guides, and specs to Uselink.

updated May 2026

claude-md-architect

2
@trin-zenityx

A Claude Code skill that designs, audits, and extracts CLAUDE.md — the highest-leverage prompt in any project. From ZenityX (จับมือทำจริง ใช้ได้จริง · Hands-on AI. Real results.) — bilingual Thai/English.

updated Jul 2026

staff-engineer-mode

2
@franciscolopes26

Principal-engineer operating mode for Claude Code: 5-phase loop, 30 red flags, cognitive layers for software and security, grounded chapter-by-chapter in 10 canonical engineering books. MIT.

updated May 2026

spec-kit-linear-sync

2
@ashbrener

Automatically mirror your spec-kit specs into Linear — one issue per spec, a sub-issue per task phase, kept in sync as you work.

updated Jun 2026

fact-drift

2
@hwajongpark

A Claude Code skill that watches the source pages behind the facts you cite (prices, versions, limits, rules, deadlines) and updates every file that has gone out of date, once you approve.

updated Jul 2026

BugVault

2
@yuezi2048

Claude Code MCP native extension delivering a zero-human closed loop: Auto Bug Retrieval → Intelligent Troubleshooting → Automated Structured Accumulation. Equips Claude Code with long-term troubleshooting memory and establishes a reusable bug knowledge library for individuals and teams.

updated Jun 2026

Broswer-MCP-for-Claude

2
@satisharps

Chrome browser MCP for Claude — navigate, click, type, take screenshots, monitor network & console logs. Connects Chrome to Claude (Cowork / Claude Code) via a Chrome Extension + Python MCP server. 20+ browser control tools.

updated Jun 2026
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