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

8253entries
★ starsA–Z name

cortex-memory

5
@SKULLFIRE07

Persistent AI memory for Claude Code, Cursor & Cline. Auto-captures decisions, patterns and context across sessions. Zero-config VSCode extension + CLI + MCP server.

updated May 2026

claude-best-practices

5
@AravindKurapati

A living knowledge base of Claude, Claude Code, skills, MCP, and agentic workflow best practices collected from practitioners and kept updated.

updated May 2026

vscode-cc-agent-manager

5
@KyleJamesWalker

VSCode Extension to Monitor Claude Code Agents

updated Apr 2026

cto-toolkit

5
@camilooscargbaptista

The ultimate Claude Code plugin for engineering leadership — 54 skills, 5 autonomous agents, 9 automation scripts, and intelligent hooks covering the full software engineering lifecycle.

updated Apr 2026

Lycheetah-Framework

5
@Lycheetah

AI alignment framework. Nine interdependent theories — CASCADE, AURA, LAMAGUE and six more — each mathematically proven, each converging on the same constants. Banach fixed points. Constitutional invariants. MCP extension for Claude Code. Built by one self-taught researcher. Open. Testable. Human.

updated May 2026

anty-framework

5
@masterleopold

AI Workforce plugin for Claude Code — proactive sales & marketing strategy for startup founders. 24 domain knowledge skills, 10 commands, 4 AI agents. Integrates 15+ strategic frameworks.

updated Apr 2026

lauyer

5
@nikuscs

⚖️ Fast CLI for searching Portuguese court jurisprudence (DGSI) and legislation (Diário da República) – AI agent skill for Claude Code, Claude.ai, Codex, and any LLM agent. Parallel search, full text retrieval, markdown/JSON output.

updated May 2026

template-symfony-sveltekit

5
@tony-stark-eth

Opinionated full-stack template: PHP 8.4 + Symfony 8 + SvelteKit 2 + FrankenPHP + Docker + 10 PHPStan extensions + Claude Code. Production-ready quality tooling from commit zero.

updated Apr 2026

wordpress-skill

5
@arturseo-geo

Comprehensive WordPress skill for Claude Code — REST API, Gutenberg blocks, WooCommerce, RankMath/Yoast SEO, ACF custom fields, media management, multisite, migration, performance tuning, WP-CLI commands. By TheGEOLab.net

updated Apr 2026

love-stack

5
@on-deck-society

The most comprehensive free Claude optimization plugin. 170+ skills, 5 MCP servers, 3 Anthropic breakthroughs. Free forever.

updated Apr 2026

ai-chief-of-staff

5
@Akshat2430

Build your AI Chief of Staff in 45 minutes with Claude Code — commands, skills, and hooks as a system

updated Apr 2026

pi-claude-code

5
@fractary

Pi.dev extensions to allow it to run commands, agents and skills designed to use Claude Code tools.

updated May 2026

crowdcast

5
@TheQmaks

Multi-agent social simulation as a Claude Code skill. Zero dependencies — predict anything with /crowdcast simulate.

updated May 2026

health-skill

5
@googlarz

A health workspace and longevity companion for Claude — connects your labs, training, sleep, and family history so every conversation builds on the last.

updated May 2026

ndemo

5
@splitbrain

A claude skill to create a narrated demo video of a web application

updated May 2026

claude-on-a-leash

5
@adityaarakeri

Deterministic security guardrails for Claude Code. Six hooks that hard-block RCE, credential exfiltration, SSRF, and prompt injection before they execute. Plus an MCP server for every other agent.

updated Apr 2026

silver-bullet

5
@alo-exp

Agentic Process Orchestrator for AI-native Software Engineering & DevOps. Composes SB+GSD workflows with cross-plugin sequencing, traceability, quality gates, and hook-enforced delivery for Claude Code and Codex.

updated May 2026

claude-code-self-autopsy

5
@mustfaunlu

Leaked Claude Code (Claude CLI) full architecture — 1,902 files, 512K lines, 89 feature gates, 39 tools, 101 commands. Analyzed by Claude itself. All numbers verified.

updated May 2026

claude-skill-it-recht-dsgvo

5
@patrickstigler

Ein Claude Skill für rechtliche Ersteinschätzungen im deutschen IT-Recht und Datenschutzrecht (DSGVO/BDSG).

updated May 2026

ashlrcode

5
@ashlrai

Multi-provider AI coding agent CLI. 30 tools, 15 skills, MCP support, autopilot mode.

updated May 2026

find-skills-x

5
@jpwang1208

AI-powered skill discovery tool for finding and recommending agent skills across 8+ platforms

updated May 2026

kincode

5
@LocalKinAI

AI coding assistant in Go. 9MB single binary, zero dependencies. MCP support, Soul files for custom AI personas. 10 built-in tools + sub-agents + web search + memory. The only Claude Code alternative with both MCP and Soul files.

updated May 2026

arch-compiler-ai-harness-in-action

5
@inetgas

This repo was built by using Claude Code and agent skills which are harnessed around the Architecture Compiler, a deterministic compiler turning constraints into reviewable architectural decisions with clear trade-offs and cost impact, based on 180+ curated design patterns. Refer to https://github.com/inetgas/arch-compiler for more details.

updated Apr 2026

shuorenhua

5
@1-SKILL

说人话 — AI痕迹消除与文本人性化改写,查重率从60%降到30%以内

updated Jun 2026
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