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

polished-slide-visuals

2
@parahall

Claude Code skill for designer-quality .pptx slides — HTML/SVG → headless Chrome → PNG → python-pptx embed pipeline. Layers on top of Anthropic's pptx skill.

updated Jul 2026

pi-cas-provider

2
@neevparikh

Pi extension: Claude provider via @anthropic-ai/claude-agent-sdk. Inherits Claude Code auth, supports fast mode on Opus.

updated Jun 2026

Claude-SCORM-Skill

2
@e-Fuse

A Claude Code skill that packages HTML eLearning modules into SCORM-compliant zips. Supports SCORM 1.2, 2004 2nd, 3rd, and 4th Edition. Drop it into your .claude/commands/ folder and run /package-scorm.

updated Jun 2026

alexa-claude

2
@anagesoares

Alexa Skill com Claude (Anthropic) — deixe sua Alexa inteligente. ⚠️ Requer crédito na API da Anthropic (mín. US$5). Manual passo a passo no README.

updated Jul 2026

claude-code

2
@Pushpenderrathore

Anthropic-compatible proxy that routes Claude Code opus4.7/sonnet4.6 Haiku , the VS Code extension & JetBrains ACP to free or local model providers.

updated Jul 2026

codex-oi

2
@Dtdkvn

Universal second-opinion bridge for AI coding agents. Pluggable engines (Codex, Gemini) callable from Antigravity, Cursor, Codex CLI, Claude Code, Aider, Continue.dev. Five modes, project-aware context, filesystem boundary, no-auto-apply contract. Bash + PowerShell. MIT.

updated Jul 2026

x-algorithm-skill

2
@ceoguy

A Claude skill that teaches Claude to write X (Twitter) posts engineered against the open-source For-You ranker. Sourced from xai-org/x-algorithm + twitter/the-algorithm + Community Notes.

updated May 2026

product-team-skill

2
@KentQi

产品开发团队模拟技能 - 7+N 角色虚拟团队 + Phase-Gate 质量门禁 + 标准/资源受限/MVP 三种运行模式

updated Jun 2026

rashedul-agentic-engineering

2
@Rijul1204

My agentic-engineering workbench — Claude Code skills, subagents, and CI workflows I reuse across projects.

updated Jun 2026

Java-Claude-Skills

2
@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 Jun 2026

lazy-english-reader.skill

2
@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 Jul 2026

sprint-orchestrator

2
@lipefur

Portable multi-chat sprint orchestration skill for Claude Code. Validated in 17+ production sprints.

updated May 2026

mcp-man

2
@aaglexx

Postman for MCP servers — inspect tools, test live, browse 150+ servers

updated Jun 2026

claude-code-deep-research-v2

2
@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 Jun 2026

ai-incident-response-agent-toolkit

2
@develgroup

AI-driven incident response toolkit. Reconstructs the full attack path of a cloud or Windows breach, maps every step to MITRE ATT&CK, and stages human-approved containment. AWS · Azure · GCP · Windows. Apache-2.0.

updated May 2026

outbound-mcp

2
@outboundpartnerscom

MCP server (cross-provider: Claude, ChatGPT, n8n) for the Outbound Partners Portal API. Built using anthropics/skills mcp-builder.

updated Jul 2026

alchemy-infra

2
@aashirjaved

Agent skill that scaffolds Alchemy (Infrastructure-as-TypeScript) into any codebase with strict secret hygiene. SKILL.md format, skills.sh + npx compatible.

updated May 2026

agent-skills

2
@ParthGanatra

Claude Code agent skills. Includes youtube-summary: a YouTube video summarizer that writes structured notes (TL;DR, takeaways, chapters) with optional slide extraction.

updated Jul 2026

scratch-to-prompt

2
@AJSubrizi

Turn messy ideas into agent-ready prompts. A small skill for Claude Code, Cursor, built on Anthropic’s prompt-engineering principles.

updated May 2026

austrian-economics-hayek-skills

2
@dutyen64

本项目是为 Claude (Anthropic) 设计的专业技能库,基于奥地利经济学派理论体系构建,重点精细化深化哈耶克核心思想,可直接导入 Claude 中,用于宏观经济数据分析、政策解读与市场趋势研判。

updated Jun 2026

claude-code-power-config

2
@AlexisBalayre

An opinionated, fully-worked Claude Code configuration: path-scoped rules, skills, subagents, deterministic hooks, and a worktree-first workflow. Demonstrated on a TypeScript monorepo; the framework adapts to any language or stack.

updated Jul 2026

lakebase-app-dev-kit

2
@databricks-solutions

Opinionated git-Lakebase branch-pairing workflows. Shared executable surface for the lakebase-scm-extension (VS Code/Cursor) and coding agents — Claude Code, Claude Desktop, OpenAI Foundry, Cursor, Databricks Genie Code.

updated Jul 2026

oh-my-pi-ai-toolbelt

2
@Labir12

Terminal AI Agent 2026: Hash-Anchored Edits & Python LSP Tool Harness

updated Jul 2026

mvsd-ai-skills

2
@Raisecornfritter28

Deploy discrete, purpose-built AI skills for Claude and other SKILL.md-compatible agents to automate focused, recurrent workflows.

updated Jul 2026
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