22,198 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 agents7,609Claude Code6,644Data and AI3,677Backend and APIs3,502Languages3,403Planning3,220Git and workflow3,193Code review2,743Testing2,377Memory and context2,363DevOps and cloud2,314Writing and docs2,311Research2,293Frontend2,259Security2,022Productivity1,721
All Claude Code32,006 Codex23,251 OpenCode22,198 GitHub Copilot3,552 Gemini CLI1,917 Cursor1,737 Windsurf138 Kiro81
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| lllyin/mcp-cn-a-stock An A-share data MCP (Model Context Protocol) service for AI Agents. | 4 | Claude Code, Codex, OpenCode | 2 | 345 tok |
| salimfadhley/agent-inbox A SQLite mailbox for local LLM agents — one HTTP API, an ActivityStreams messaging model, | 4 | Claude Code, Codex, OpenCode | 2 | 3,720 tok |
| kaelig/state-of-ai-in-design-systems state-of-ai-in-design-systems.netlify.app A field survey of how 20 open-source design systems make themselves AI-friendly: MCP serve | 4 | Claude Code, Codex, OpenCode | 10 | 5,437 tok |
| davidmosiah/fitbit-mcp wellness.delx.ai MCP server for Fitbit — query daily activity, heart rate, sleep, and body data from your F | 4 | Codex, OpenCode | 1 | 152 tok |
| ashyeager/harikos.ai harikos-ai.vercel.app Truth based memory for AI coding Agents. | 4 | Codex, OpenCode | 1 | 1,367 tok |
| JTCHE/houdini-mcp Houdini MCP — AI control of Houdini via Model Context Protocol (fork of kleer001/houdini-m | 4 | Claude Code, Codex, OpenCode | 2 | 492 tok |
| kody-bot/home-mcp-starter kody.codes Starter for a home MCP server you can connect to Kody over Cloudflare Tunnel and Access. | 4 | Codex, OpenCode | 1 | 53 tok |
| hronaut/hronaut hronaut.dev The browser your coding agent can come back to — visible, persistent, isolated workspaces | 4 | Codex, OpenCode | 1 | 1,310 tok |
| ssheleg/super-ux skills.sshlg.me Scenario-driven UX for coding agents: vision, personas, flows, screens, acceptance scenari | 4 | Claude Code, Codex, OpenCode | 2 | 2,208 tok |
| testivai/testivai-oss testiv.ai Local-first visual regression testing for Playwright, Selenium, WebdriverIO, Python, Java | 4 | Claude Code, Codex, OpenCode | 2 | 4,479 tok |
| anishmoncivarghese/sonde Local code-context engine for AI coding agents: structural answers within a token budget. | 4 | Claude Code, Codex, OpenCode | 7 | 1,941 tok |
| nworks3d/THOR-memory-bible-for-AI A memory for your AI coding assistant. It keeps what you tell it and hands the right note | 4 | Codex, OpenCode | 1 | 3,990 tok |
| endlessblink/clean-cut-mcp Simply describe your animation, and watch Claude create stunning React-powered videos in a | 4 | Claude Code, Codex, OpenCode | 10 | 903 tok |
| jmagly/hound-mcp MCP server for Hound code search - expose regex-based code search to Claude Code and AI ag | 4 | Claude Code, Codex, OpenCode | 2 | 314 tok |
| IndelibleVivi/mcp-app-production-fieldlab Executable, evidence-bounded MCP App production field lab | 4 | Codex, OpenCode | 1 | 1,217 tok |
| 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 |
| astandrik/local-ydb-toolkit local-ydb-toolkit.ydb-qdrant.tech Codex skill and MCP server for operating Docker-based local YDB deployments, locally or ov | 3 | Codex, OpenCode | 1 | 2,200 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 |
| xonika9/agent-skills skills.sh Practical Agent Skills for source-backed research, controlled browser sessions, idea criti | 3 | Claude Code, Codex, OpenCode | 2 | 784 tok |
| tooppoo/enozunu | 3 | Claude Code, Codex, OpenCode | 2 | 680 tok |
| max-listov/stitchkit Contract-first backend framework for Bun and Node — one defineContract() into an HTTP API, | 3 | Claude Code, Codex, OpenCode | 2 | 6,518 tok |
| dsswift/ion Headless multi-provider LLM agent runtime. Single Go binary, 14+ providers, 70+ extension | 3 | Claude Code, Codex, OpenCode | 1 | 24,178 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 |
| jwilger/ai-plugins Development plugins for codex | 3 | Codex, OpenCode | 1 | 3,976 tok |
| IT-HUSET/andthen Coding agent toolkit with workflows, guidelines, and plugins for Claude Code and other age | 3 | Claude Code, Codex, OpenCode | 4 | 3,511 tok |
| scrollDynasty/BrowserMesh npmjs.com Multi-agent browser MCP runtime for isolated, persistent, parallel Playwright sessions. Ru | 3 | Claude Code, Codex, OpenCode | 7 | 9,540 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 | 25,835 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 |
| 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 |
| Ask-812/oswright MCP server for Windows desktop automation. Incremental perception instead of a screenshot | 3 | Codex, GitHub Copilot, OpenCode | 2 | 1,604 tok |
| Salah-XD/appCN appcn.vercel.app | 3 | Claude Code, Codex, OpenCode | 5 | 4,032 tok |