31,992 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 agents7,690Claude Code6,656Data and AI3,669Backend and APIs3,506Languages3,395Planning3,227Git and workflow3,219Code review2,753Testing2,387Memory and context2,368Writing and docs2,331DevOps and cloud2,317Research2,292Frontend2,266Security2,036Productivity1,725
All Claude Code31,992 Codex23,401 OpenCode22,346 GitHub Copilot3,564 Gemini CLI1,917 Cursor1,741 Windsurf146 Kiro83
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| marius-cetanas/macos-mail-mcp MCP server for Apple Mail (macOS Mail.app) — read, search, compose, and manage emails via | 1 | Claude Code | 4 | 5,874 tok |
| Hank-coder/chimera_mcp | 1 | Claude Code | 1 | 4,875 tok |
| james-gibson/mcp | 1 | Claude Code | 1 | 2,245 tok |
| mrgoonie/todo-mcp An usable TODO MCP server for your AI tools | 1 | Claude Code | 1 | 188 tok |
| glatinone/BraveMCP Local-first MCP server that gives Claude Desktop searchable memory of your browsing histor | 1 | Claude Code | 1 | 572 tok |
| LeonNonnast/mcpdevprompts MCP Dev Prompts Server | 1 | Claude Code | 1 | 481 tok |
| eclipsevr-live/twitch-mcp A Model Context Protocol (MCP) server which allows MCP Clients (such as Claude) to connect | 1 | Claude Code | 1 | 1,355 tok |
| adbarc92/mcp-browser-bridge npmjs.com MCP server giving AI assistants control of a real Chrome browser. Closed 11-tool surface, | 1 | Claude Code | 2 | 1,117 tok |
| yigitkonur/example-mcp-stateful stateful MCP server with Redis sessions, event sourcing, and horizontal scaling | 1 | Claude Code | 1 | 542 tok |
| co-native-ab/graphdo-ts A TypeScript MCP server that gives AI agents scoped, low-risk access to Microsoft Graph. | 1 | Claude Code, Codex, OpenCode | 17 | 4,416 tok |
| Magnolia-Tech-Services-LLC/ressourcespaceMCP | 1 | Claude Code | 1 | 937 tok |
| seabearDEV/Reverie seabear.dev A command-line information store for quick reference of frequently used data, with dot not | 1 | Claude Code, Codex, OpenCode | 2 | 919 tok |
| Limecooler/fda-mcp MCP server providing LLM-optimized access to FDA data via the OpenFDA API | 1 | Claude Code | 1 | 641 tok |
| Nexus-Digital-Automations/crawl4ai-mcp | 1 | Claude Code | 1 | 7,518 tok |
| yigitkonur/example-mcp-sse reference MCP server over SSE transport — calculator domain, teaching patterns | 1 | Claude Code | 1 | 640 tok |
| colintoh/clicky-mcp MCP server for Clicky Analytics | 1 | Claude Code | 1 | 496 tok |
| tokusumi/wassden-mcp **Note: Early development phase. stable production use is not yet possible.** `wassden` i | 1 | Claude Code | 1 | 2,811 tok |
| gnokit/mcp-datetime A minimal TypeScript MCP server that provides current local datetime in a clean single-lin | 1 | Claude Code | 1 | 632 tok |
| Stefan-Nitu/mcp-xcode-server | 1 | Claude Code | 1 | 384 tok |
| steveandroulakis/temporal-nexus-mcp-demo A comprehensive sample application demonstrating how to bridge Model Context Protocol (MCP | 1 | Claude Code | 1 | 2,324 tok |
| NimbleBrainInc/mcp-echo A Model Context Protocol (MCP) service that provides echo tools for testing MCP protocol f | 1 | Claude Code | 1 | 306 tok |
| azumausu/shogi-mcp | 1 | Claude Code | 1 | 783 tok |
| fablefang/ai-conversation-logger-mcp ai conversation logger mcp | 1 | Claude Code | 2 | 1,280 tok |
| ymyzk/nagoya-bus-mcp MCP server for Nagoya City Bus | 1 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,493 tok |
| quanticsoul4772/grafana-mcp Grafana MCP Server - AI-powered Grafana integration | 1 | Claude Code | 1 | 1,348 tok |
| Jercik/perplexity-agent-mcp An opinionated, coding-specialized, Model Context Protocol server that integrates Perplexi | 1 | Claude Code, Codex, OpenCode | 2 | 7,929 tok |
| preangelleo/my-credentials-mcp 🔐 Secure PostgreSQL MCP Server with GitHub OAuth - Database access & credential generatio | 1 | Claude Code | 2 | — |
| CaseyRo/mcp-readwise MCP server for Readwise + Readwise Reader. Engagement-aware reads, write tools, and a mark | 1 | Claude Code, Codex, OpenCode | 21 | 431 tok |
| ccchow/washington-law-mcp MCP server for offline access to Washington State laws (RCW) and court rules | 1 | Claude Code | 1 | 1,403 tok |
| technophile-04/sre-mcp | 1 | Claude Code | 3 | 5,279 tok |
| z1w2r3/doc-mcp | 1 | Claude Code | 1 | 217 tok |
| NimbleBrainInc/mcp-ipinfo MCP server for IPInfo API - IP geolocation, ASN lookup, privacy detection, and domain inte | 1 | Claude Code | 1 | 994 tok |
| AriEncarnacion/dnd-mcp dnd mcp server | 1 | Claude Code | 1 | 4,699 tok |
| Knuckles-Team/archivebox-api ArchiveBox API and MCP Server | 1 | Claude Code, Codex, OpenCode | 2 | 3,524 tok |
| jenova-marie/keyboard-shortcuts-mcp | 1 | Claude Code | 1 | 760 tok |
| jenova-marie/iris-mcp | 1 | Claude Code | 5 | 2,413 tok |
| JoschuaSchneider/masterplan Minimal MCP for project-local plan files, integrated into /grill-me | 1 | Claude Code | 1 | 666 tok |
| quanticsoul4772/bear-mcp MCP server for reading Bear notes | 1 | Claude Code | 1 | 1,164 tok |
| Piesson/ChillMCP MCP server for Anthropic Hackerthon (November, 2025) | 1 | Claude Code | 1 | 30 tok |
| MGS-sails/mgnify-mcp - MGnify MCP Server implements the Model Context Protocol to expose MGnify’s metagenomic | 1 | Claude Code | 1 | — |
| guyeyouhun/auto-knowledge-base Autonomous knowledge base system based on the MCP protocol, providing intelligent knowledg | 1 | Claude Code | 1 | 1,020 tok |
| phkus/craft-mcp | 1 | Claude Code | 1 | 3,831 tok |
| ivo-toby/contentful-mcp-graphql MCP Server to enable LLM's to connect to the Contentful GraphQL Endpoints | 1 | Claude Code | 1 | 296 tok |
| mintmcqueen/gemini-mcp | 1 | Claude Code | 1 | 7,786 tok |
| altuslabsxyz/altus-commonware-research-mcp Altus Commonware Research MCP | 1 | Claude Code | 1 | 1,129 tok |
| minami110/mcp-gdscript | 1 | Claude Code | 1 | 1,393 tok |
| hnkatze/PrimeNG_MCP MCP server providing PrimeNG component documentation as tools for AI assistants — query pr | 1 | Claude Code | 1 | 3,180 tok |
| L-x-C/cc-multi-process-mcp A FastMCP-based multi-process execution server for Claude Code that provides asynchronous | 1 | Claude Code | 1 | 1,326 tok |
| NorthSeacoder/fe-testgen-mcp | 1 | Claude Code | 1 | 3,421 tok |
| PrinceGupta1999/graylog-mcp Unofficial Graylog MCP | 1 | Claude Code, Codex, Cursor, OpenCode | 3 | 1,109 tok |