43,636 repositories keep their own agent configuration in the open: a CLAUDE.md, a rules file, instructions for Copilot, a skill the project runs on itself. These are not mods to install. They are worth reading for what they reveal — what a maintainer thinks an agent gets wrong.
Building agents7,571Claude Code6,627Data and AI3,684Backend and APIs3,492Languages3,401Planning3,221Git and workflow3,179Code review2,740Testing2,368Memory and context2,365Writing and docs2,309DevOps and cloud2,308Research2,298Frontend2,256Security2,015Productivity1,715
All Claude Code31,984 Codex23,196 OpenCode22,145 GitHub Copilot3,551 Gemini CLI1,917 Cursor1,736 Windsurf133 Kiro79
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| Fabric-Pro/fizzy-mcp fizzy.fabric.pro Model Context Protocol Server for Fizzy | 19 | Claude Code, Codex, OpenCode | 2 | 1,704 tok |
| sunnyday-technologies/CADCLAW The testing framework CAD never had — automated validation, interference detection, and st | 19 | Codex, OpenCode | 1 | 1,753 tok |
| jmeyer1980/neurodivergent-memory A TypeScript-based MCP server implementing a memory system inspired by neurodivergent cogn | 19 | Claude Code, GitHub Copilot | 3 | 1,325 tok |
| damionrashford/media-os damionrashford.github.io Routed Media OS for Claude Code — 96 skills + 13 modes + 7 specialist agents covering FFmp | 19 | Claude Code | 2 | 3,222 tok |
| jessedc/apple-voice-memos An agent skill to extract and process transcripts from Apple Voice Memos into useful summa | 19 | Claude Code | 1 | 572 tok |
| donnfelker/loop-skills Autonomous, self-re-prompting agent loops for Claude Code — packaged as independently-inst | 19 | Claude Code, Codex, OpenCode | 2 | 1,262 tok |
| synthesisengineering/synthesis-skills Synthesis Skills — reusable AI agent skills built on the Agent Skills open standard. Insta | 19 | Claude Code, Codex, OpenCode | 2 | 1,326 tok |
| epicsagas/epic-harness epicsagas.github.io Multi-tool AI agent harness — 22 skills, self-evolving engine, unified memory, autonomous | 19 | Claude Code, Codex, OpenCode | 3 | 4,767 tok |
| ZenMux/skills ZenMux Skills Repo | 19 | Claude Code, Codex, OpenCode | 2 | 1,286 tok |
| paulasilvatech/specky getspecky.ai Agentic Spec-Driven Development — 13 agents, 58 MCP tools, 10-phase enforced pipeline. Fro | 19 | Claude Code, Cursor | 27 | — |
| danieleteti/delphi-ai-skills SKILLS about Delphi, Code-Smell, DMVCFramework, WebAPI and JSON-RPC for Claude, Gemini, Cu | 19 | Claude Code | 1 | 2,149 tok |
| rfxn/rdf rfxn.github.io Governance-driven AI development framework -- convention enforcement, quality gates, and d | 19 | Claude Code | 1 | 954 tok |
| aliasunder/vault-cortex npmjs.com Standalone MCP server for Obsidian vaults — hybrid search, structured memory, task managem | 19 | Claude Code, Codex, OpenCode | 5 | 20,624 tok |
| eoinjordan/gb-studio-agent npmjs.com Claude or other MCP Agentic integration for GB Studio Automated game asset creation and pr | 19 | GitHub Copilot | 1 | 1,116 tok |
| jagoff/memo memo-web-sigma.vercel.app Your coding agent starts every session with amnesia — memo fixes that, 100% on your machin | 19 | Claude Code | 4 | 9,483 tok |
| GabrielOnDelphi/Claude-Tools-for-Delphi Skills, agents, settings, md files for Claude Code for Delphi programmers | 19 | Claude Code | 48 | — |
| sotthang/so-agentbar macOS menu bar app that monitors your active Claude Code agent sessions in real-time | 19 | Claude Code | 2 | — |
| rlrghb/olkcli Outlook in your terminal | 19 | Claude Code, Codex, OpenCode | 2 | 6,203 tok |
| nikships/skills-registry skills-registry.dev Your personal GitHub registry for AI Agent Skills. One repo. EVERY agent. EVERY device. Lo | 19 | Claude Code, Codex, OpenCode | 2 | 659 tok |
| XZXZZX-Ai/bilibili-mcp Bilibili MCP tool A Bilibili MCP server | 19 | Claude Code, Codex, OpenCode | 14 | 1,197 tok |
| liuyang0508/Agent-Memory-Hub A shared second brain for multiple agents | 19 | GitHub Copilot | 1 | 129 tok |
| MackDing/andrej-karpathy-skills-zh Claude Code / Codex / Cursor AI coding rules: Chinese version of the Karpathy coding guide | 19 | Claude Code, Codex, OpenCode | 2 | 1,469 tok |
| zvec-ai/zvec-agent-skills zvec.org Official AI Agent skills for building with Zvec vector database | 19 | Claude Code | 1 | 804 tok |
| nikandr-surkov/ai-saas-starter ai-saas-starter-six.vercel.app AI SaaS boilerplate for Next.js 16 — Better Auth, Stripe subscriptions, credits system, AI | 19 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 1,999 tok |
| lj22503/awesome-finai-tools-zn A comprehensive overview of Chinese financial AI tools: Market Data MCP, quantitative fram | 19 | Codex, OpenCode | 1 | 139 tok |
| agentmail-to/agentmail-plugins | 19 | Codex, OpenCode | 1 | 503 tok |
| artarasov/zenmoney-mcp MCP server for ZenMoney — manage your personal finances from Claude, Cursor, and other AI | 19 | Claude Code | 1 | 144 tok |
| ever-works/directory-web-template ever.works Open-Source Directory Website NextJs Boilerplate (part of Ever® Works™ Platform) - https:/ | 19 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 17,352 tok |
| PromptExecution/rust-cargo-docs-rag-mcp [ARCHIVED — see PromptExecution/rust-docs-mcp-b00t] MCP tools for Rust Context Engineering | 19 | Claude Code | 1 | 277 tok |
| 2mawi2/para Manage sandboxed parallel claude code sessions on git worktrees | 19 | Claude Code | 9 | 3,272 tok |
| clpi/down.nvim down.cli.st the (eventually) infinitely extensible markdown note-taking work environment that you can | 19 | GitHub Copilot | 1 | 8 tok |
| shikokuchuo/secretbase shikokuchuo.net secretbase - Cryptographic Hash Functions and Data Encoding | 19 | Codex, OpenCode | 1 | 951 tok |
| volcengine/volcengine-skills | 19 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,793 tok |
| 0x1b2c/twitter-bookmarks-downloader A robust, self-hosted system to sync, archive, and explore your Twitter/X bookmarks locall | 19 | Gemini CLI | 1 | 1,415 tok |
| danielterra/FOUNDATION | 19 | Claude Code | 32 | 6,973 tok |
| CrowdStrike/fusion-skills crowdstrike.com AI coding assistant skills for building CrowdStrike Falcon Fusion workflows: action discov | 18 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 3,083 tok |
| spotify/ads-agentic-tools A Claude Code plugin that lets you manage Spotify advertising campaigns through natural la | 18 | Claude Code, Codex, OpenCode | 2 | 4,819 tok |
| yuanqiyibiansheng/DeepSeek-Harness-GUI DeepSeek-Harness-GUI | 18 | Claude Code, Codex, OpenCode | 13 | 7,118 tok |
| solanabr/solana-glossary glossary.so The most complete Solana glossary with 1000+ enriched terms. Available as SDK, MCP Server | 18 | Claude Code | 45 | 1,017 tok |
| anurmatov/phleet Open-source autonomous multi-agent AI platform. Dockerized agents driven by Claude or Code | 18 | Claude Code | 1 | 2,428 tok |
| eddmann/my-own-coding-agent Educational Python coding agent with provider-agnostic LLM support, skills system, and ext | 18 | Claude Code, Codex, OpenCode | 2 | 47 tok |
| fadwen/Powershell-Copilot-Standards techbyjeff.net Enterprise-grade PowerShell development standards and GitHub Copilot instructions for cons | 18 | GitHub Copilot | 24 | 43,625 tok |
| yorkie-team/yorkie-team.github.io yorkie.dev Yorkie Homepage and Documentation | 18 | Claude Code | 1 | 403 tok |
| tim-mccrimmon/structured-context-spec structuredcontext.dev A community-driven specification for creating, validating, and versioning structured conte | 18 | Claude Code | 1 | 1,997 tok |
| cgemise971/PropFirmEA Expert Advisor automatisé pour Prop Firms (FTMO, E8, FundingPips, The5ers) | 18 | Claude Code | 1 | 2,488 tok |
| sam-agents/sam SAM - Autonomous TDD agent system for Claude Code, Cursor, Gemini CLI, GitHub Copilot, and | 18 | Claude Code, Codex, OpenCode | 10 | 2,782 tok |
| paulnsorensen/easy-cheese cheeselord.dev Cheese your code 🧀 — high-quality results as easy as cheese. A portable, harness-agnostic | 18 | Codex, GitHub Copilot, OpenCode | 5 | 4,754 tok |
| speakeasy-api/skills speakeasy.com Agent Skills for SDK generation and OpenAPI tooling with Speakeasy CLI | 18 | Claude Code, Codex, OpenCode | 2 | 3,754 tok |
| jfrog/agent-belt Reproducible evaluation for AI coding agents. Multi-turn scenarios against Claude Code, Co | 18 | Codex, OpenCode | 1 | 2,594 tok |
| asiflow/claude-nexus-hyper-agent-team asiflow.ai multi-agents operating system layer on top of Claude Cod: multi-agent engineering team for | 18 | Claude Code | 1 | 9,311 tok |