How real projects configure their agents

45,030 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 agents8,564Claude Code6,906Git and workflow3,633Data and AI3,578Backend and APIs3,558Languages3,494Planning3,322Code review2,906Testing2,695DevOps and cloud2,496Writing and docs2,489Memory and context2,375Research2,320Frontend2,312Security2,181Project management1,980

All Claude Code32,552 Codex24,920 OpenCode23,840 GitHub Copilot3,723 Gemini CLI2,039 Cursor1,771 Windsurf202 Kiro117

Project Stars Configures Files Always loaded
Eleven-Mouse/MCP-server A pure Java MCP (Model Context Protocol) Server implemented from scratch without depending 4 Claude Code 2 —
cyanheads/survey-mcp-server Transform LLMs into intelligent interviewers. MCP server for conducting dynamic, conversat 4 Claude Code, Codex, OpenCode 2 9,030 tok
layervai/qurl-mcp MCP server for QURL - secure link management for AI agents 4 Claude Code 1 4,557 tok
aplaceforallmystuff/mcp-kit An MCP (Model Context Protocol) server that connects AI assistants like Claude to the [Kit 4 Claude Code 1 644 tok
TristanLib/mcp_server_mysql_windows 4 Cursor 1 181 tok
resolve-ai-oss/resolve-ai-plugins 4 Claude Code, Codex, OpenCode 2 1,016 tok
vishalsachdev/claude-code-skills Professional skills for Claude Code following the Agent Skills open specification 4 Codex, OpenCode 1 471 tok
donnfelker/donnfelker-plugin-marketplace 4 Claude Code, Codex, OpenCode 2 2,124 tok
identimoji/mcp-server-emojikey MCP Server for emojikey.io ... save your unique relationship state and interaction style w 4 Claude Code 1 260 tok
ragingwind/web-llm-mcp-server MCP Server for web-llm 4 Claude Code 1 847 tok
nickytonline/pimp-my-ride-mcp An MCP server that allows you to configure a car 4 Claude Code, Codex, GitHub Copilot, Cursor, OpenCode 4 3,846 tok
maricoxu/remote-terminal-mcp 4 Cursor 1 1,306 tok
ythalorossy/openfda 4 Claude Code, Codex, OpenCode 2 13,347 tok
julianoczkowski/mcp-modus This MCP server gives AI assistants (like Cursor, Claude, VS Code) access to complete Modu 4 Claude Code 1 1,467 tok
dgalarza/ynab-mcp-dgalarza MCP server for working with your YNAB budget 4 Claude Code 1 —
johnnyzhoujz/pin-it-public justpinit.xyz A local Mac pinboard for saving anything you want to reuse with any AI. 4 Claude Code, Codex, OpenCode 2 510 tok
espresso3389/pdf-splitter-mcp MCP server to handle PDF files efficiently 4 Claude Code 1 1,432 tok
nav33n25/IMCP Welcome to IMCP – a deliberately vulnerable framework that exposes 14 critical security we 4 GitHub Copilot 1 286 tok
foundry-works/foundry-mcp foundry-mcp 4 Claude Code, Codex, OpenCode 2 4,413 tok
kvas-it/mcp-server-fs MCP server providing basic file system operations. Supports navigation, reading, writing, 4 Claude Code 1 369 tok
EoinFalconer/granola-mcp-server 4 Codex, OpenCode 1 1,465 tok
jweingardt12/BaseClaw jweingardt12.github.io Win your fantasy league, with the help of AI. Allows for Claude/OpenClaw management of you 4 Claude Code, Codex, OpenCode 2 4,647 tok
manojbajaj95/agent-knowledge-cards Filesystem-first knowledge cards for coding agents; durable facts as trusted memory. Save 4 Codex, OpenCode 1 879 tok
aws-samples/sample-laboratory-data-transformation-mcp 4 Claude Code, Codex 1 —
ngmeyer/skills Agent skills I use every day — small, composable, model-agnostic. (private; scrub pending 4 Claude Code 1 938 tok
masx200/persistent-terminal-mcp https://github.com/sanshao85/persistent-terminal-mcp 4 Claude Code 1 1,910 tok
marcusquinn/quickfile-mcp MCP server for QuickFile UK accounting software - invoices, clients, purchases, banking, a 4 Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf 6 867 tok
OwenQian/mcp-server-manager 4 Claude Code 1 601 tok
prikotov/moex-mcp-server 4 Codex, OpenCode 1 346 tok
toyamagu-2021/argocd-mcp-server ArgoCD MCP Server 4 Claude Code 2 1,795 tok
arkhangelsk/mcp-appium-server Mobile Automation Using Appium MCP Server 4 GitHub Copilot 1 973 tok
ajentik/ruby_mcp_server Configurable Rack MCP Server App 4 Claude Code 1 484 tok
p-meier/northdata-connectors Generic NorthData API wrapper: Python CLI, MCP server, and Claude Skill. 4 Claude Code 1 1,368 tok
darknodebros/EleSync elesync.dev Your AI chats and memories Synced! Claude, ChatGPT, Gemini, Grok, Deepseek and Perplexit 4 Claude Code, Codex, GitHub Copilot 5 104 tok
AgiMaulana/HuaweiAppGalleryMcp 4 Codex, OpenCode 2 581 tok
bmdhodl/agent47 agentguard47.com Python runtime checks for AI agents: budgets, loops, retries, and local traces. Zero runti 4 Claude Code, Codex, GitHub Copilot, OpenCode 11 6,645 tok
cyanheads/openfda-mcp-server npmjs.com Query FDA data on drugs, food, devices, and recalls via openFDA. STDIO or Streamable HTTP. 4 Claude Code, Codex, OpenCode 2 16,364 tok
RossH121/perplexity-mcp A Perplexity MCP server based on https://github.com/jaacob/perplexity-mcp which includes a 4 Claude Code 1 2,074 tok
AdelElo13/neuromcp npmjs.com Semantic memory for AI agents — local-first MCP server with hybrid search, governance, and 4 Claude Code, Codex, OpenCode 2 1,832 tok
davidmosiah/google-ads-mcp-unofficial npmjs.com Unofficial MCP server for Google Ads — campaign management, keyword/bid optimization, budg 4 Codex, OpenCode 1 851 tok
takuya0206/slack_search_function_mcp 4 Claude Code, Cursor 2 555 tok
GifariKemal/argus-web-mcp Argus — SURIOTA self-hosted web fetch/scrape/search MCP (20 tools, unlimited, owned). Repl 4 Claude Code, Codex, OpenCode 2 3,820 tok
achenglike/theporndb-mcp 4 Claude Code 9 —
aws-samples/sample-mcp-server-automation 4 Claude Code 1 2,751 tok
pavelsukhachev/mcp-server-coolify 4 Claude Code 1 1,886 tok
dl1683/ickyMCP Multi-tenant RAG MCP Server for semantic document search 4 Claude Code 1 859 tok
Digital-Defiance/ai-capabilities-suite digital-defiance.github.io Give AI agents superpowers with MCP servers for capabilities they've never had before. 4 Codex, OpenCode 1 105 tok
eldermoraes/swapi.build swapi.build The Star Wars API and MCP Server. All the Star Wars data you've ever wanted. 4 Claude Code 1 3,351 tok
phishark-git/phishark-playwright-mcp Playwright MCP with PhiShark preflight and browser-deep protection 4 Claude Code, Codex, OpenCode 2 643 tok
larsbaunwall/Unlinked Bring your LinkedIn professional profile into AI assistants 4 Claude Code, Codex, OpenCode 5 2,615 tok