24,815 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 agents8,505Claude Code6,886Git and workflow3,611Data and AI3,580Backend and APIs3,556Languages3,487Planning3,327Code review2,899Testing2,686Writing and docs2,480DevOps and cloud2,479Memory and context2,375Research2,323Frontend2,308Security2,172Project management1,965
All Claude Code32,517 Codex24,815 OpenCode23,733 GitHub Copilot3,719 Gemini CLI2,034 Cursor1,770 Windsurf202 Kiro114
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| recallnet/codecontext Force agents to read critical context left by other agents, enforced by linting and freshn | 5 | Claude Code, Codex, OpenCode | 5 | 2,003 tok |
| hookdeck/agent-skills hookdeck.com Agent Skills for working with Hookdeck products — Event Gateway (webhooks/events) and Outp | 5 | Claude Code, Codex, OpenCode | 2 | 5,544 tok |
| markdavidgan/apple-dev-skills Apple platform development skills for Claude Code, Cursor, Kimi Code, Antigravity, Codex C | 5 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 7,239 tok |
| hardiktiwari/PM-operating-OS An operating system for product managers — persistent product context, an on-demand skills | 5 | Codex, OpenCode | 1 | 442 tok |
| clix-so/skills docs.clix.so An open collection of agent skills for Clix. | 5 | Claude Code, Codex, OpenCode | 2 | 437 tok |
| netresearch/matrix-skill Three Agentic Skills for Matrix: encrypted chat with a daemon that follows rooms live, Syn | 5 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 3,080 tok |
| Noshkoto/Noshy Your agent has amnesia. Noshy fixes that. Persistent memory for AI agents — LLM extraction | 5 | Codex, OpenCode | 1 | 771 tok |
| puristajs/harness purista.dev AI Harness build on top of typescript | 5 | Claude Code, Codex, OpenCode | 2 | 694 tok |
| nob-git-dev/agent-skills Portable Agent Skills for disciplined software delivery, learning, editing, and LLM evalua | 5 | Codex, OpenCode | 1 | 591 tok |
| devoncarew/flutter-slipstream Live Flutter app introspection for coding agents. | 5 | Claude Code, Codex, OpenCode | 3 | 434 tok |
| punt-labs/z-spec Creates, validates, and animates Z (and B) specifications from source and generates code f | 5 | Claude Code, Codex, OpenCode | 3 | 4,786 tok |
| ryne2010/harness-engineering-audit Codex skill for evidence-linked repository harness audits, scored assessments, and priorit | 5 | Codex, OpenCode | 1 | 288 tok |
| talesofai/okp cohub.live The context layer for AI agents — open, structured, searchable knowledge protocol (Domain | 5 | Codex, OpenCode | 1 | 1,441 tok |
| nobrainer-tech/nobrainer-tech-skills nobrainer.tech Portable agentic workflows for guarded autonomy, visible sessions, SDD, decisions, RCA, ev | 5 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 4,743 tok |
| EthanM2025/game-design-lenses 100 game design lenses applied to your design artifacts via Claude Code or Codex. Auto-pic | 5 | Codex, OpenCode | 1 | 1,103 tok |
| dcc-mcp/dcc-mcp-maya-mgear dcc-mcp.github.io DCC-MCP agent skills for Autodesk Maya and mGear Shifter: inspect rigging components, crea | 5 | Codex, OpenCode | 1 | 1,340 tok |
| TGPSKI/catnip pate.sh Capture, analyze, visualize, and retain GitHub repo metrics locally with stdlib-only Pytho | 5 | Codex, OpenCode | 1 | 2,342 tok |
| ZuiTiti/Zuiti-Desktop Rather than being the smartest assistant, it aims to be the one that best understands emot | 5 | Codex, OpenCode | 1 | 2,083 tok |
| Miguell-J/mcp-one MCP-one is a central server that connects multiple independent MCP servers and exposes a u | 5 | Codex, OpenCode | 1 | 193 tok |
| dongsheng123132/2origin 2origin.org Benxiang Protocol · One source, myriad projections: preserve the original form and project | 5 | Claude Code, Codex | 4 | — |
| hexxla/mosaic MCP server for agent memory over HexxlaDB—ring retrieval, embeddings + lexical search, sea | 5 | Codex, OpenCode | 1 | 427 tok |
| sandraschi/ai-games-collection Web-based games collection with 100+ games and AI opponents | 5 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 5 | 2,134 tok |
| bit2me-devs/bit2me-mcp mcp.bit2me.com Official MCP local server for Bit2Me digital assets platform | 5 | Codex, OpenCode | 1 | 5,152 tok |
| bookedsolidtech/helixir npmjs.com MCP server that gives AI coding agents deep knowledge of any web component library — prope | 5 | Claude Code, Codex, OpenCode | 35 | 1,572 tok |
| Bortlesboat/bitcoin-api Self-hostable Bitcoin fee intelligence API with optional MCP and x402 integrations. Former | 5 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 4,843 tok |
| aetherwing-io/mish ohitsmish.com The LLM-native shell — five MCP tools for structured output, error diagnostics, and proces | 5 | Claude Code, Codex, OpenCode | 2 | 1,715 tok |
| ANFAIA/ClimaSafe Early warning system for heat and cold risk. Predicts personalized thermal mortality risk | 5 | Claude Code, Codex, OpenCode | 2 | 3,155 tok |
| arcadeai-labs/omnimcp arcade.dev Use Arcade with Claude, Cowork, Cursor, OpenCode, and other agents. | 5 | Codex, OpenCode | 1 | 461 tok |
| okforge/okforge-webui okforge.github.io LAN web UI + job runner for okforge knowledge bases: scanned PDF -> VLM OCR -> translated, | 5 | Codex, OpenCode | 1 | 554 tok |
| tidyinfo/qmd A high-performance, private Markdown search engine with Hybrid Search (BM25 + Vector) and | 5 | Codex, OpenCode | 1 | 1,522 tok |
| pblagoje/mcp-ollama-python pblagoje.github.io Ollama MCP Server, let's you chat with your local LLM running on your local OLLAMA server. | 5 | Claude Code, Codex, OpenCode | 8 | 1,857 tok |
| perhapsspy/project-legibility Keep long-running repository work coherent and easy to resume. | 5 | Codex, OpenCode | 1 | 449 tok |
| colinwilliams91/gaitor-orchestrator-cli npmjs.com CLI for AIDDLC -- Scaffolded, parallelized, context aware agent runtime in seconds. | 5 | Codex, GitHub Copilot, OpenCode | 6 | 4,548 tok |
| jcast90/relay Orchestrate coding agents across repos. Local-first, self-hosted, runs inside your existin | 5 | Claude Code, Codex, OpenCode | 2 | 3,098 tok |
| gapra/gp-nuxt-migration-mcp MCP (Model Context Protocol) Server for Nuxt 2/3 to Nuxt 3/4 migration analysis and automa | 5 | Claude Code, Codex | 9 | — |
| johnmikel/zeno-mobile-runner npmjs.com Deterministic mobile UI checks for AI coding agents. One Zig binary drives real iOS/Androi | 5 | Codex, OpenCode | 1 | 1,068 tok |
| jmerelnyc/paygate-402 Turn any API or MCP server into a paid service | 5 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 657 tok |
| alefcarlos/mcpserver-auth-demo Protected MCP Server Sample using .NET Aspire and Keycloak | 5 | Claude Code, Codex, OpenCode | 4 | 692 tok |
| priyansh-narang2308/TheBlacklisted-NitroStack protocol-0-6a65348-the-blacklisted-amrita-university-coimbatore.app.nitrocloud.ai Protocol-0 is an MCP (Model Context Protocol) server that gives AI assistants, Claude, Cur | 5 | Claude Code, Codex | 6 | 836 tok |
| klodr/faxdrop-mcp Send real faxes from any MCP-enabled AI assistant. Wraps the FaxDrop API (PDF/DOCX/JPG/PNG | 5 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,435 tok |
| guodaxia103/tabrix MCP-native Chrome automation layer for AI assistants. Open source, community-driven, and p | 5 | Codex, OpenCode | 1 | 1,926 tok |
| fullstack-ai-infra/mem A portable, self-hosted memory plane for AI agents — one core across API, MCP, CLI, and UI | 5 | Codex, OpenCode | 1 | 426 tok |
| tta-lab/organon Structure-aware tools for AI agents. Tree-sitter code editing, web page navigation, search | 5 | Codex, OpenCode | 1 | 2,241 tok |
| sunnydev07/test-remote-mcp-server marvellous-mcp.fastmcp.app A test mcp server , you can connect this mcp to claude-desktop using this link below: | 5 | Codex, OpenCode | 1 | 885 tok |
| HanZephyr/AI-Data-Access-Gateway An open-source secure data access gateway for AI agents. It provides database safety acces | 5 | Codex, OpenCode | 1 | 372 tok |
| alvcarmona/library-mcp MCP server that automates library music-room booking — Clean Architecture, Selenium scrapi | 5 | Codex, OpenCode | 1 | 412 tok |
| BjoernRave/i18n-magic CLI to help you manage your locales JSON with translations, replacements, MCP server using | 5 | Claude Code, Codex | 1 | — |
| ApexIQ/skillsmith pypi.org One command to make any repo agent-ready. Scaffolds .agent/ workspace, platform instructio | 5 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 5 | 3,432 tok |
| spyrosze/mcp-openfoodtox phoebeai.com MCP server providing tools to access EFSA's comprehensive OpenFoodTox Chemical Hazards in | 5 | Codex, OpenCode | 1 | 6,574 tok |
| 24373054/TLAH-Studio download.matrixlabs.cn Native Windows AI agent workspace with observable runs, controlled tools, MCP, and provide | 5 | Claude Code, Codex, OpenCode | 2 | 2,252 tok |