23,196 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 |
|---|---|---|---|---|
| StepFunctionLLC/mcp-server-cantera An MCP server wrapped around Cantera to facilitate use by an LLM | 4 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,463 tok |
| qut-dmrc/buttermilk | 4 | Claude Code, Codex, Gemini CLI, OpenCode | 10 | 75 tok |
| panoptes/panoptes-utils panoptes.github.io A set of Astronomical utility functions. PANOPTES style. :hammer_and_wrench: :telescope: : | 4 | Codex, GitHub Copilot, Gemini CLI, OpenCode | 3 | 8,008 tok |
| jackin-project/jackin-dev Development-workflow skills plugin for the jackin project — spec-driven feature, PR, resea | 3 | Claude Code, Codex, OpenCode | 2 | 209 tok |
| ali-ulu/huqan huqan.com Local-first verification layer for AI agents: evidence, provenance, policy gates, human ap | 3 | Claude Code, Codex, OpenCode | 2 | 1,113 tok |
| a2uicatalog/a2ui a2uicatalog.ai Typed UI vocabulary for AI agents using the a2ui protocol — 474 atoms an agent composes i | 3 | Claude Code, Codex, Gemini CLI, OpenCode | 5 | 2,597 tok |
| jackychanisnotme/ccNexus Smart API endpoint rotation proxy and local API provider for Codex CLI/GUI, Claude Code CL | 3 | Claude Code, Codex, OpenCode | 2 | 5,065 tok |
| tkpratardan/lemma AI harness for DS/ML workflows. | 3 | Codex, GitHub Copilot, OpenCode | 2 | 558 tok |
| siddhartha-yz/dsh-mcp-gateway Connect ChatGPT Web to DSH through OAuth + MCP, exposing DSH-native tools, skills, policie | 3 | Codex, OpenCode | 1 | 1,166 tok |
| ShiftinBits/constellation-mcp docs.constellationdev.io Code Intelligence Platform for AI Coding Assistants | 3 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 5 | 2,138 tok |
| Digital-Defiance/ai-capabilities-suite digital-defiance.github.io Give AI agents superpowers with MCP servers for capabilities they've never had before. | 3 | Codex, OpenCode | 1 | 105 tok |
| Dhi13man/oorep-mcp npmjs.com Model Context Protocol (MCP) server and client SDK that provides AI assistants with access | 3 | Codex, OpenCode | 1 | 917 tok |
| u2n4/video-url-analyzer-mcp MCP server to analyze YouTube, TikTok & Instagram videos from URL — transcripts, AI insigh | 3 | Claude Code, Codex, OpenCode | 2 | 3,850 tok |
| metaforismo/serve-droid Browser streaming, semantic inspection, Logcat, and agent control for Android devices. | 3 | Codex, OpenCode | 1 | 829 tok |
| Trusty-Squire/trusty-squire Trusty Squire signs up / in to websites for you so you don’t have to. | 3 | Claude Code, Codex, OpenCode | 2 | 24,464 tok |
| phishark-git/phishark-playwright-mcp Playwright MCP with PhiShark preflight and browser-deep protection | 3 | Claude Code, Codex, OpenCode | 2 | 643 tok |
| logfoxai/callspec callspec.logfox.ai One spec powers input-validated API, docs UI, OpenAPI, MCP, and typed clients. | 3 | Codex, OpenCode | 1 | 24 tok |
| Auctalis/nocturnusai nocturnus.ai Verified knowledge for AI agents. Compress context, extract and store facts, define rules | 3 | Claude Code, Codex, OpenCode | 7 | 8,907 tok |
| aabhisrv/Spiderbrain.ai-Coremind spiderbrain.ai The understanding layer for your repo: an MIT reader (@spiderbrain/read) and the .spiderbr | 3 | Codex, OpenCode | 1 | 443 tok |
| EvanL1/AetherEdge aetheriot.ai Deterministic edge runtime for agent-configured physical spaces — Kernel, CLI, and SDK for | 3 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,927 tok |
| larsbaunwall/Unlinked Bring your LinkedIn professional profile into AI assistants | 3 | Claude Code, Codex, OpenCode | 5 | 1,155 tok |
| lukegskw/caldav-mcp A TypeScript MCP server for iCloud Calendar with native multi-VALARM support. | 3 | Codex | 2 | — |
| Echoqili/ssh-licco SSH Model Context Protocol Server - Provides AI models with SSH capabilities | 3 | Claude Code, Codex | 10 | — |
| githendrik/sf-mm-mcp MCP Server for Showfeed and Moviemagnet | 3 | Codex, OpenCode | 1 | 903 tok |
| dinglebear-ai/cortex npmjs.com Rust MCP/HTTP log aggregation platform for homelab syslog, Docker logs, OTLP ingest, SQLit | 3 | Claude Code, Codex, Gemini CLI, OpenCode | 4 | 9,040 tok |
| dinglebear-ai/rarcane npmjs.com Rust MCP server and CLI for Arcane Docker/container management, with action-dispatched too | 3 | Claude Code, Codex, Gemini CLI, OpenCode | 4 | 4,903 tok |
| Alele496/bsv-specmate Bluespec/BSV agent copilot via MCP. Pre-compile trap prediction, post-compile diagnosis, B | 3 | Codex, OpenCode | 1 | 287 tok |
| Arjun0606/smolanalytics smolanalytics.com End-to-end tests without test code. Write one sentence, an agent drives a real browser on | 3 | Codex, OpenCode | 1 | 530 tok |
| Salah-XD/appCN appcn.vercel.app | 3 | Claude Code, Codex, OpenCode | 5 | 4,032 tok |
| PrintrFi/printr-mcp printrfi.github.io Printr mcp server for AI agents | 3 | Claude Code, Codex, OpenCode | 5 | 923 tok |
| QiuwenZheng/interminal Lightweight MCP server for SSH and local terminal access | 3 | Claude Code, Codex | 2 | 1,000 tok |
| ShinyDapps/l402-kit shinydapps-api.vercel.app The simplest way to charge for your API in Bitcoin sats. 3 lines of code. TypeScript + Pyt | 3 | Claude Code, Codex, OpenCode | 2 | 3,297 tok |
| WhenLabs-org/when Six tools. One install. The WhenLabs developer toolkit. | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,498 tok |
| vibgrate/cli vibgrate.com Local codebase intelligence for AI coding agents and software teams, in the CLI and VS Cod | 3 | Codex, OpenCode | 1 | 953 tok |
| Shangri-la-0428/oasyce-sdk 47.93.32.88 Python SDK + MCP Server + LangChain Tools for Oasyce — on-chain AI agent economy. pip inst | 3 | Codex, OpenCode | 1 | 1,867 tok |
| JinNing6/CyberHuaTuo-Plugin AI Agent Error Doctor: paste MCP / LangChain / CrewAI tracebacks, get root cause, exact fi | 3 | Claude Code, Codex, OpenCode | 4 | 156 tok |
| Lipdog/fossick-mcp pypi.org Search all of GitHub from your AI agent — find libraries, drill into repos, search code pa | 3 | Claude Code, Codex, OpenCode | 2 | 2,349 tok |
| OrbiAds/Orbiads-GAM-MCP orbiads.com Google Ad Manager MCP hosted - AdOps Skills for Claude, Gemini, OpenAI - Inventory, traffi | 3 | Claude Code, Codex, OpenCode | 2 | 5,982 tok |
| MuhDur/oraclemcp durakovic.ai Safe-by-default Oracle Database MCP server, in pure Rust — fail-closed SQL guard, engine-f | 3 | Codex, OpenCode | 1 | 4,176 tok |
| Zhao73/alphacouncil-agent Inspectable, source-traceable public-equity research for Codex, Claude Code, OpenCode, Gro | 3 | Claude Code, Codex, OpenCode | 17 | 7,325 tok |
| cyanheads/crossref-mcp-server npmjs.com Resolve DOIs, search ~155M scholarly works, and fetch references via the Crossref REST API | 3 | Claude Code, Codex, OpenCode | 2 | 11,698 tok |
| VibeTechnologies/vibe-mcp vibebrowser.app MCP server that drives your real, logged-in Chrome from any MCP client - including agents | 3 | Claude Code, Codex, OpenCode | 3 | 2,113 tok |
| anthony-maio/cartograph | 3 | Claude Code, Codex | 3 | 746 tok |
| detailobsessed/efficient-gitlab-mcp [Archived] Token-efficient GitLab MCP server. Superseded by upstream zereight/gitlab-mcp v | 3 | Claude Code, Codex, OpenCode | 2 | 2,731 tok |
| antohins/seo-tools-mcp 8 stdio MCP servers for SEO (xmlstock/SERP, wordstat, gsc, ywm, metrika) for Claude Code — | 3 | Codex, OpenCode | 1 | 5,288 tok |
| bytewizard42i/soulSketch SoulSketch is a protocol for preserving, transferring, and evolving AI identity across sys | 3 | Codex, OpenCode | 1 | 780 tok |
| jack1590/RokuMCP Roku MCP Server -- A Model Context Protocol (MCP) server that enables LLM-driven automatio | 3 | Codex, OpenCode | 1 | 2,494 tok |
| hampsterx/codex-mcp-bridge MCP server bridging Codex CLI to Claude Code, Cursor - (native) review, queries, and searc | 3 | Codex, OpenCode | 1 | 3,443 tok |
| kensaurus/mushi-mushi kensaur.us 🦖Know why your AI-built app broke — plain-English diagnosis + ready fix, in your editor. | 3 | Codex, Cursor, OpenCode | 7 | 13,150 tok |
| getDynamoi/mcp dynamoi.com Promote music on Spotify and grow YouTube channels through AI-powered Meta and Google ad c | 3 | Codex, OpenCode | 1 | 79 tok |