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

8250entries
★ starsA–Z name

muse-tts-embed

2
@falcoschaefer99-eng

Persistent audio player embedded in Claude's chat. 54 voices, voice cloning, play/pause/seek/download. Fully local.

updated May 2026

ai-fluency-assessment-skill

2
@n-pillai

A Claude Code skill for quarterly AI fluency assessment using Anthropic's 4D Framework and Yegge's 8-Stage Developer-Agent Evolution Model

updated May 2026

claude-code-enhance

2
@jatinmayekar

Prompt enhancement skill for Claude Code. Fixes vague prompts before execution using Anthropic's prompt engineering techniques + requirements discovery + verification.

updated Mar 2026

claude-memory-sync

2
@contail

Sync Claude Code memory across machines. Git + symlink + hooks. 2-minute setup, zero dependencies.

updated Mar 2026

literature-search

2
@Laszlo75

Claude Code skill for systematic clinical literature searches via PubMed and Scholar Gateway — produces evidence summaries, YAML reference ledgers, and Zotero exports

updated Apr 2026

token-optimizer-skill

2
@arturseo-geo

Token cost optimization skill for Claude Code — model routing (Opus/Sonnet/Haiku), extended thinking tuning, prompt caching, subagent cost management, CLAUDE.md audit checklist, MCP token audit, per-session cost tracking. By TheGEOLab.net

updated Apr 2026

claude-code-save

2
@andrew-shwetzer

Claude Code skill for session continuity. Save and resume work like video game checkpoints. Tracks intent, progress, decisions, next steps across sessions.

updated Apr 2026

github-readme-generator

2
@Ublaze

Claude Code skill — Generate polished GitHub READMEs with banners, badges, comparison tables, and architecture diagrams

updated May 2026

ai-skills-by-caio

2
@karagos

Production-grade AI skills for Claude Projects and Cowork. Built by Stefanos Karagos at CAIO Group (wearecaio.com).

updated Apr 2026

claude-legends-review

2
@Atypical-Consulting

AI code reviews by Elon Musk, Steve Jobs & Linus Torvalds. Three personas debate your code until consensus. Claude Code skill — install in 10 seconds.

updated Apr 2026

diffchestrator

2
@Andrevops

VS Code extension for multi-repo Git orchestration — built as a companion to Claude Code. Stage, review, diff, and commit across dozens of repos from one sidebar.

updated Jun 2026

claude-skills

2
@yachi

Production-grade Claude Code skills, auto-research validated. Includes /deep-research with 89-run benchmark.

updated May 2026

localmost

2
@federicotdn

Flexible and deterministic Claude Code PreToolUse tool

updated May 2026

claude-code-allowlist

2
@phspagiari

PreToolUse hook that makes permissions.allow work for Claude Code subagents

updated May 2026

claude-skills

2
@MakiDevelop

Reusable skill packs for Claude Code CLI — 14 ready-to-use skills for data analysis, image generation, career tools, and more.

updated Apr 2026

prospectingwork

2
@SimonTheSalesBooster

Positioning diagnostic prospecting — the Rick Rubin approach to cold outreach. No pitch. No CTA. Just the work.

updated May 2026

moodle-mcq

2
@danielcregg

Claude skill for generating, reviewing, and improving Moodle quiz questions. Works with Claude Code and Claude Desktop. GIFT, XML, and Aiken formats. Easy, standard, and challenging difficulty modes. Built by a lecturer for lecturers.

updated May 2026

ch-project-context

2
@psylch

One-command project context management system for Claude Code — docs structure, session-start hook, quality-gate hook

updated Apr 2026

.claude

2
@enbiyagoral

Token-efficient Claude Code project scaffolding. 3-tier context architecture with skills, agents, hooks, and rules — drop into any project.

updated Mar 2026

coderunner-skill

2
@danielcregg

Claude skill for generating Moodle CodeRunner programming questions with automated test cases. Java, Python, C/C++, and more. First-of-its-kind — no other CodeRunner generation tool exists. Built by a lecturer for lecturers.

updated May 2026

llm-language

2
@Silence-view

v4.1 Opus 4.7 native prompt meta-compiler — skill-level meta-refinement, automatic ROSETTA via 5 hooks, Jarvis v3.0 overhaul (3-obs threshold, awareness cards), micro-task methodology. dual-layer memory, Buffer-of-Thoughts + Meta-Reasoner bandit, 125+ scientific papers. Claude Code plugin.

updated Apr 2026

claude-tmux-hooks

2
@LiveNL

Per-window Claude Code state in your tmux tab bar — animated indicator, event-driven, zero polling

updated Apr 2026

maxs-claude-skills

2
@whateverforever

Some Skills for Claudius

updated Mar 2026

claude-team-kit

2
@jlarrigan

A shared collection of Claude Code skills, agents, and hooks for engineering teams. Claude does the setup and updates.

updated Mar 2026
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