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

skill-advisor

3
@DEEP-CONTENT

Auto-route every Claude Code prompt to the right skill, subagent, or slash command — silently, locally, with zero API keys.

updated Jun 2026

agent-replay

3
@ferhatatagun

Watch a Claude agent's tool-calling loop — paste a trace, replay it step by step on a cinematic timeline. No key, no backend.

updated Jul 2026

claude-bpmn-skill

3
@architawr

Claude Code plugin (Agent Skill) for BPMN 2.0 - read, explain, create & edit .bpmn process diagrams with clean auto-generated layout, validation, and control-flow linting (deadlocks, stuck tokens). Works with Camunda Modeler & bpmn.io.

updated Jun 2026

claude-code-constraints

3
@lh180lh-sys

让 Claude Code 从随机走向可控的长期协作约束系统。 长期与 AI 协作时,build 被跳过、文件只读一半、"应该正常"代替验证——这些问题缓慢累积,最终交付逐渐退化成"看起来已经完成"。 本项目提供一套完整的 7 层约束设计:Hook 输入端硬约束、Skill 持续性协议、CLAUDE.md 分级规范、交付前审计、关键决策点行为补丁、自动化脚本、跨会话记忆反馈。含可直接复用的配置、代码和脚本。 不是写更长的 prompt,而是搭更薄的约束层。

updated Jul 2026

Trimly

3
@Mikael-W

Token usage tracker & prompt optimizer for Claude Code. Hooks into your workflow to measure real spend, detect filler phrases (6 languages), and suggest leaner prompts — local SQLite, zero telemetry, zero friction.

updated Jun 2026

smm-skills

3
@Planable

Claude SMM Skills — production Claude Agent Skills for the Planable MCP server. Draft post batches, pending approvals roundup, monthly performance summary, content calendar audit, cross-client metrics overview, and content pattern intelligence.

updated Jul 2026

Stock-Analysis-3D

3
@Geralt-L

Claude Code 股票智能分析 Skill — 3D 评分(技术 50 + 基本面 30 + 消息面 20)。Fork from @liusai0820/Stock-Analysis-Skill with extensive enhancements.

updated Jul 2026

social-media-scraper-skill

3
@expropriationhoorayhenry64

Extract and summarize social media content from platforms like Instagram, TikTok, X, and YouTube using Claude Code.

updated Jul 2026

cuecards

3
@opencue

Agent profile manager for Claude Code & Codex. Per-directory profiles select which skills, MCP servers, and plugins load — automatically, before launch. Install: npm install -g cue-ai

updated Jul 2026

dw-harness

3
@pugyy

A Claude Code engineering template for reliable data warehouse AI development./面向数仓 AI 开发的 Claude Code 工程化模板:hooks、skills、subagents 与八步标准流程。

updated Jul 2026

etf-quant-dao

3
@laozdao

基于 ETF 资金流向数据的 A 股市场趋势量化分析工具 | ETF fund flow quantitative trend analysis for China A-share market

updated Jul 2026

unifapi-mcp-server

3
@unifapi-agent

UnifAPI MCP server: public-data APIs and Skills for AI agents via Model Context Protocol

updated Jun 2026

claude-code-plugin-tracker

3
@linny006

Live index of Claude Code extensions, hooks, and plugins — refreshed every 15 minutes from GitHub

updated Jul 2026

MediStat-EDA

3
@JeonKH81

Claude Code skill that generates a self-contained Korean HTML EDA dashboard for clinical/medical tabular research data (xlsx/csv).

updated Jun 2026

ghostswap-agents

3
@ghostswap1

Official multi-LLM agent pack for the GhostSwap Partners API (no-KYC crypto swaps, 1,600+ coins). MCP server, OpenAPI 3.1, Anthropic Agent Skill, AGENTS.md, Cursor/Copilot/Windsurf rules, ChatGPT GPT Action. Works with Claude, ChatGPT, Cursor, Windsurf, Gemini, Copilot, OpenAI Agents SDK, LangChain, LlamaIndex.

updated Jun 2026

plumbline

3
@BytesFromToby

A "trust, but verify" workflow of AI-agent skills: prompt to verified code, every step trackable and deviations logged — plus an autonomous maintenance loop to keep a built project honest.

updated Jul 2026

embodied-ai-paper-writer

3
@OpenGHz

A portable agent skill (SKILL.md + reference playbooks) for writing top-conference embodied-AI papers — distilled from 63 papers (CoRL/RSS/ICRA/IROS/Science Robotics, 2022–2026). Works with any LLM agent that loads markdown context.

updated Jul 2026

clauditor

3
@hazzap123

A Claude Code subagent that audits your setup (CLAUDE.md, settings.json, skills, agents, hooks, headless claude -p) against a maintained best-practices reference, with an optional weekly job that keeps the reference current.

updated Jul 2026

neuro-matrix

3
@AlexShchuka

Claude Code plugin: runtime invariants + hooks (cycle-detector, approval gate, verification gate), four co-system agents (developer · analyzer · critic · epistemic-auditor), and a held-out evaluation harness. Anti-hallucination protocol grounded in game theory and the scientific method.

updated Jun 2026

anthropic-html

3
@L2ncE

A Claude Code skill for generating Anthropic-style standalone HTML diagram files.

updated Jun 2026

claude-files-starter

3
@gceico

Production-ready Claude Code setup: team contract, rules, hooks, skills, and specs workflow, wired together.

updated Jun 2026

mies

3
@deeflect

A design-taste skill that removes what an interface doesn't need, then perfects what's left.

updated Jul 2026

user-thoughts.SKILL

3
@JularDepick

An Agent Skills compliant skill that enables AI agents to automatically organize user input and maintain a persistent, project-bound idea repository (mdbase) — so decisions, preferences, and constraints survive across sessions and agent handoffs.

updated Jul 2026

cover-xiaohongshu

3
@chaoshouli

小红书封面生成与样图排版库扩充的 Codex / Claude Skill

updated May 2026
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