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

8295entries
★ starsA–Z name

ContextMemory

★ 8
@Kortexio

Agentic gateway providing persistent LLM memory via a markdown wiki. Open-source core of Kortexio.

updated Sep 2026

jobxhunter

★ 8
@soheilfallah

Searches live UK and Canada jobs, fits an ATS-safe CV to each role from your real experience, and recommends the gaps to close. A Claude Code plugin, and any AGENTS.md CLI.

updated Aug 2026

skillci

★ 8
@kabirnarang39

CI for Claude Skills — lint, eval, and regression-test SKILL.md files across a model matrix, with a self-growing eval loop that turns uncovered regressions into permanent test cases.

updated Aug 2026

next-expo-supabase-agent-harness

★ 8
@BhodiSea

Deterministic agent harness for pnpm monorepos shipping a Next.js 16 web app AND an Expo (React Native) mobile app over one shared Supabase backend: Claude Code hooks, security-invariant gates, RLS isolation tests, cross-surface parity and design-token gates, provenance pipeline, supply-chain-hardened CI.

updated Oct 2026

graph-engineering

★ 8
@VineeTagarwaL-code

Claude agent skill that plans multi-step work as a dependency graph. Subagent fan-out, layered fan-in, model tiering, verification retry loops, human approval gates. No framework, just instructions.

updated Sep 2026

CB-loop-kit-claude-plugin

★ 8
@cbdreamer11

A session-based working method for coding agents: plan in thin complete slices, build one at a time, verify by observing real behaviour, hand off cleanly. Skills + agents + 2 hooks for Claude Code.

updated Aug 2026

archeyes

★ 8
@thisAAY

Bidirectional plan diagrams for AI coding agents — the diagram is an input device.

updated Oct 2026

ai-agents-mental-models

★ 8
@Syyms

Twelve deep-dive notes on how AI agents actually work: the loop, tool use, MCP, context management, evals. Mental models over feature lists, every technical fact cross-checked against the official docs. Bilingual FR/EN.

updated Sep 2026

oxidize

★ 8
@DeVaNsHk72

Migrate any codebase or app to Rust — incrementally, with differential tests that prove parity before cutover. A Claude skill.

updated Aug 2026

cmux-tips

★ 8
@johnfkoo951

Field-tested tips for running multiple Claude Code sessions in cmux (native macOS terminal) — workspace groups, tmux mirroring, hooks, session addressing. By CMDSPACE.

updated Aug 2026

chromeboost

★ 8
@lordamdal

Give Claude hands in your own browser. A Chrome extension + MCP server that lets Claude Code, Codex or Gemini CLI drive your real, logged-in Chrome.

updated Sep 2026

handdrawn-ppt

★ 8
@moongiadventures-dev

내 캐릭터 이미지 한 장으로 손그림 발표자료를 만들어주는 Claude 스킬 — 자료조사 + 검증된 출처 + 차트/표/흐름도까지. 한국어·영어 지원.

updated Sep 2026

pi-recap

★ 8
@L2ncE

Claude Code-style session recap for pi agent — a stable one-line status recap above the footer

updated Sep 2026

context-cost-guard

★ 8
@JanBancerewicz

Claude Skill (hook script) to prevent Claude Code from overspending tokens on irrelevant context by showing user an alert

updated Aug 2026

lab-skills

★ 8
@Archive228

22 drop-in skills for your agent, distilled from official AI-lab docs (Anthropic, OpenAI, Google, Microsoft, GitHub). Source-linked, adversarially fact-checked, nothing invented. ./install.sh → .claude/skills/

updated Aug 2026

asd-ste100-skill

★ 8
@DotDebian

Simplified Technical English for software documentation: a Claude Code skill, three review agents, four slash commands, and a zero-dependency linter with 19 rules.

updated Oct 2026

genpark-constitutional-ai-harmlessness-evaluator-benchmark-skill

★ 8
@alphaparkinc

Constitutional AI harmlessness benchmark and RLAIF safety evaluator (Anthropic style)

updated Sep 2026

cst-sim-agent

★ 8
@valenZW

A Claude Code plugin turning CST Studio Suite into a conversational electromagnetic simulation assistant — MCP tools, embedded VBA knowledge base, and constraint hooks that self-evolve with use. 一款把 CST Studio Suite 变成对话式电磁仿真助手的 Claude Code 插件:MCP 工具集、内嵌 VBA 知识库、随使用自进化的约束 hooks。

updated Oct 2026

fabling

★ 8
@gncdev

Claude skills that make Opus 5 work like Fable 5

updated Sep 2026

MemContinuum

★ 8
@krakozavr

Institutional memory engine: append-only decision chains, hybrid retrieval, write-side reminder hooks for Claude Code

updated Oct 2026

birokrasi-pt-indonesia

★ 8
@MKWcorp

Panduan lapangan menembus birokrasi PT Perorangan di Indonesia: AHU, OSS/NIB, Amdalnet, Coretax DJP, PPh Final 0,5%, SPT, setoran modal, rekening bank PT, dan DUNS. Markdown murni — bekerja dengan CLI, IDE, dan AI apa pun (Claude Code, Cursor, Copilot, ChatGPT, Gemini). Dari satu pendirian nyata, berikut jebakannya.

updated Oct 2026

epitype

★ 8
@leavemagic-cyber

Your agent ignores the rules in CLAUDE.md after a compaction. Epitype makes remembered rules actually govern behavior. Claude Code + Codex hooks, stdlib only, MIT.

updated Sep 2026

genpark-agentic-catalog-search-facet-discovery-skill

★ 8
@alphaparkinc

Semantic catalog search with dynamic faceted attribute filtering (Anthropic Shopping)

updated Sep 2026

genpark-multi-item-goal-basket-planner-skill

★ 8
@alphaparkinc

Goal-driven multi-item basket planner within budget ceilings (Anthropic Shopping)

updated Sep 2026
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