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

8165entries
★ starsA–Z name

Java-Claude-Skills

1
@Santoshrt999

Claude Code skill: review and modernize legacy Java 8 code to Java 21 with AI. Generates a 1-100 score. Specialized for financial systems.

updated May 2026

ai-rosetta-stone

1
@pem725

Claude skill that translates Claude concepts (Projects, Skills, Artifacts, MCP, Memory) to ChatGPT, Gemini, and Microsoft Copilot (consumer / M365 / GitHub) equivalents. Verified May 2026.

updated May 2026

lazy-english-reader.skill

1
@designservice

把英文书一键变成中文译本 + Obsidian 章节精读笔记 + 跨章主题索引。Claude Code skill。三产物独立可选:全本翻译 / 章节精读 / 主题归纳。

updated May 2026

claude-bpmn-skill

1
@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 May 2026

clawvr-agent-skill

1
@Steffd415

Open-source Claude Agent Skill that generates custom AI Operating Systems for small businesses across 13+ verticals (dental, salon, restaurant, contractor, real estate, vet, photographer, fitness, insurance, CPA, law, HVAC). Built for Claude for Small Business + Anthropic Agent Skills standard. MIT licensed. https://clawvr.com

updated May 2026

quiz-generator

1
@Davante-MEDAC

A CLI tool that reads a PDF document and uses the Anthropic Claude API to automatically generate a structured set of multiple-choice questions for study and exam preparation.

updated May 2026

claude-code-deep-research-v2

1
@jamoeight

Multi-agent deep-research skill for Claude Code, scaled with post-Nov-2025 SOTA from Anthropic / OpenAI / DeepMind. Adds AggAgent synthesis, DRA verification, BrowseConf + BATS, Co-Scientist Discovery mode, AlphaEvolve Generator-Evaluator mode. v1 baseline preserved at jamoeight/deep-research-claude-code.

updated May 2026

feature-loop

1
@ecukalla

Autonomous build → verify → fix loop for any repo — a Claude Code plugin built on agent-skills

updated May 2026

waga-feishu-skill

1
@XiaoChu-1208

用飞书远程指挥 Claude Code · Drive Claude Code remotely from Feishu/Lark — multi-session routing + emoji reactions. An OpenClaw/Hermes-style remote agent for Claude Code, powered by lark-cli.

updated May 2026

claude-harness-audit

1
@programon-arg

Portable Claude Code skill for auditing harness quality (consistency, drift, hygiene, Anthropic best practices)

updated May 2026

rgaa-audit-plugin

1
@cegape

Audit RGAA 4.1.2 automatisé pour sites et apps web — plugin Claude (Code / Cowork).

updated May 2026

limit-up-dao

1
@laozdao

老子道涨停股批量归因分析工具 - 基于开源大模型的A股涨停股系统化归因分析 | Limit-up stock attribution analysis tool powered by open-source LLMs

updated May 2026

smm-skills

1
@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 May 2026

claude-md-strict-research

1
@Chen-Po

Evidence-first `CLAUDE.md` and Claude Code skills for reproducible research, data analysis, bioinformatics, figure auditing, and anti-hallucination workflows.

updated May 2026

expo56-skill

1
@mahdi-salmanzade

Expo SDK 56 reference as a Claude Code skill + plugin marketplace (offline, point-in-time snapshot). For building new apps and migrating from SDK 55; 20 bundled API docs.

updated May 2026

Stock-Analysis-3D

1
@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 May 2026

vsclaudefix

1
@LunarWerxs

VSCode Claude Code Extension Improvement's Patch - persistent session pane, pin/star, status indicators, and modal/layout fixes for the Claude Code VS Code extension.

updated May 2026

grimoire

1
@soumyadeep-datta

Agentic RAG system with multi-tool orchestration over Claude + LangGraph. 4-stage hybrid retrieval (BM25S + Voyage embeddings + RRF + Cohere Rerank), AST-aware code chunking, persistent memory. Evaluated via DeepEval: Faithfulness 0.91, Recall 0.88, Relevancy 0.91, Precision 0.94.

updated May 2026

paper-conductor

1
@jiayou20021120-afk

论文全流程集大成助手 · Claude Code skill that drafts, polishes, reviews and plans the whole route itself, and hands off to stronger specialized skills when a stage needs them. 覆盖选题→调研→写作→制图→润色→审稿→答辩→投稿 8 阶段。

updated May 2026

claude-omakase

1
@gyuch-an02
updated May 2026

claude-code-vscode-zh-cn-patch

1
@Shuran-z

Unofficial Chinese localization patcher for Claude Code VS Code extension. Does not include Anthropic extension code.

updated May 2026

html-annotated-preview

1
@myttttttt

Annotate anything Claude writes — reports, specs, live previews. Now with AI self-review pre-annotation. No MCP, no extension, no server. Just a Claude Code skill.

updated May 2026

texpad

1
@alfredang

Browser LaTeX authoring tool with real Tectonic compilation and a Claude AI co-author. Minimalist Overleaf alternative with web-grounded research.

updated May 2026

soulmate-skill

1
@ycos-a
updated May 2026
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