How real projects configure their agents

31,986 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 agents7,720Claude Code6,662Data and AI3,665Backend and APIs3,500Languages3,396Planning3,238Git and workflow3,234Code review2,760Testing2,394Memory and context2,365Writing and docs2,333DevOps and cloud2,315Research2,289Frontend2,264Security2,036Project management1,736

All Claude Code31,986 Codex23,463 OpenCode22,407 GitHub Copilot3,565 Gemini CLI1,914 Cursor1,740 Windsurf150 Kiro84

Project Stars Configures Files Always loaded
Schmalvis/coinbase-mcp-server Coinbase MCP 0 Claude Code 2 1,959 tok
waalwalker1/regulated-mcp-insurance-deployment Open-source reference architecture for deterministic, auditable insurance quotation workfl 0 Claude Code, Codex, OpenCode 14 702 tok
elevanaltd/HestAI-MCP 0 Claude Code, GitHub Copilot 6 1,187 tok
arclabs-studio/ARCLinearGitHub-MCP MCP Server that integrates Linear (issues) and GitHub (repos) for Claude Desktop/Code, enf 0 Claude Code 1 1,790 tok
openlearnia/OLTestStack MCP server for AI browser testing via Puppeteer/CDP 0 Claude Code, Cursor 6 —
neverprepared/mcp-cloudflare-dns 0 Claude Code 1 1,414 tok
adam-s/rubiks-cube-mcp 0 Claude Code 9 —
kltng/claude-memory Cross-machine memory system for Claude Code — records sessions as searchable markdown, syn 0 Claude Code 1 429 tok
alekhya2395/Milestone-3---AI-agent-MCP 0 Claude Code, Codex 1 —
muningis/seo-check-mcp 0 Claude Code 1 2,031 tok
terraceonhigh/Canvas-MCP-Server 0 Claude Code 1 1,901 tok
prateekaryann/github-mcp MCP server wrapping GitHub CLI for Claude integration 0 Claude Code 1 —
jlhernando/stitch-bridge MCP server bridging AI coding agents to Google Stitch design platform 0 Claude Code 4 1,782 tok
ipfans/nano-banana-mcp 0 Claude Code 1 295 tok
Ahngbeom/mysql-mcp-server 0 Claude Code 1 584 tok
Novigante/mcp-loyverse A local-first, read-only MCP server for the Loyverse API (stdio) that lets AI assistants q 0 Claude Code 1 804 tok
Kinolian1107/mcp-phison-email mcp-phison-email 0 Claude Code 1 1,104 tok
Raghu23-dev/trigsight trigsight.vercel.app Portfolio with an AI assistant that cannot make a claim it can't prove — every citation is 0 Claude Code, Codex, OpenCode 2 159 tok
wesbragagt/quack-mcp A powerful csv file data analyzer powered by Duckdb 0 Claude Code 1 3,060 tok
niallr12/engineering-knowledge-mcp 0 Claude Code 1 200 tok
assebler-grkha/VE-MCP 0 Claude Code, Codex, OpenCode 3 1,074 tok
jsilvanus/personal-repo-mcp Personal repo MCP - taking load of GithubMCP to your own VPS and only pushing when done 0 Claude Code 1 2,220 tok
avtechno-era/plane-mcp-server MCP server for self-hosted Plane (Community Edition) - lets an LLM act as a project manage 0 Claude Code 1 —
hlucent/airkorea-realtime-mcp Air quality forecast notifications, weekly ultrafine dust forecasts, high-concentration ul 0 Claude Code 1 2,847 tok
revenium/revenium-mcp MCP server for Revenium - AI cost tracking, alerting, and usage-based billing 0 Claude Code 10 —
DrZeD-13/test-mcp-db 0 Claude Code, Cursor 12 —
sebahrens/bpmn-mcp 0 Claude Code, Codex, OpenCode 4 1,526 tok
devasur/eve-mcp-handshake-repro Minimal reproduction: one eve MCP tool call costs six HTTP requests (vercel/eve) 0 Claude Code, Codex, OpenCode 2 686 tok
fix-a-lot/crawl4ai-local-for-windows Crawl4ai local MCP server for Windows(no WSL) 0 Claude Code, Codex, OpenCode 2 20 tok
kenta8813/llm-battle api with mcp based llm text battle game 0 Claude Code 1 1,428 tok
puran-water/anaerobic-design-mcp Consolidated into PuranOS — see github.com/puran-water/puranos-public 0 Claude Code 1 4,863 tok
astroicers/security-weekly-mcp MCP Server-based cybersecurity weekly report system — integrates 32 international and Taiw 0 Claude Code, Codex, OpenCode 4 2,130 tok
Drewraw/prunetool-mcp-terminal--CLI Persistent project context across LLMs and coding agents 0 Claude Code 2 151 tok
mohhh-ok/chord-player-mcp MCP server for playing chord progressions via MIDI/WAV 0 Claude Code 1 594 tok
loukach/stock-api-mcp-poc POC of MCP Server to interact with stock-api 0 Claude Code 1 2,384 tok
tone-task/mcp 0 Claude Code 1 737 tok
baspenny/harvest-mcp MCP server for Harvest time tracking API 0 Claude Code 1 840 tok
Homoney/Google-Calendar-MCP-Server 0 Claude Code 1 1,218 tok
paione-ai/kie-ai-mcp MCP Server for AI media generation (images, videos, audio) via kie.ai — 99 models, stdio + 0 Claude Code 1 143 tok
enzomotta/temporal-mcp-server MCP server for observing and managing Temporal workflows 0 Claude Code 1 1,461 tok
niradler/mcp-conductor 0 Claude Code 1 1,911 tok
w21180239/mcp-outlook-lite Production-grade MCP server for Microsoft Outlook — email, calendar, attachments, SharePoi 0 Claude Code, Codex, OpenCode 2 768 tok
GhostTypes/desktop-notification-mcp MCP server that allows agents to send desktop notifications 0 Claude Code 2 1,964 tok
conekta/redash-mcp-server 0 Claude Code 1 771 tok
sobek34/dexcom-mcp 0 Claude Code 1 663 tok
artemartemov/docs-mcp Secure Model Context Protocol (MCP) server providing intelligent documentation search for 0 Claude Code 1 2,650 tok
nicstark/motion-mcp-server-01 0 Claude Code, Codex, OpenCode 2 2,173 tok
trdillman/blender-computer-use-vm Isolated GPU-partitioned Hyper-V VM & MCP Server for automated Blender 5.2 UI testing and 0 Claude Code 3 1,494 tok
agrica/elasticsearch7-mcp Elasticsearch 7 MCP server 0 Claude Code 1 10,416 tok
DoubleGremlin181/potluck Personal Knowledge Database MCP server - Personalize your AI with Google Takeout and GDPR 0 Claude Code 2 1,275 tok