How real projects configure their agents

43,750 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
YonasValentin/mcp-memory-graph npmjs.com Local-first memory for Claude Code and any MCP client: hybrid search + knowledge graph in 2 Claude Code 1
addozhang/nexus-mcp-server MCP server for Sonatype Nexus Repository - Query Maven, Python, and Docker artifacts via H 2 Codex, OpenCode 1 937 tok
baalimago/slivingdoc slivingdoc.dev Distributed living document with conflic management via git for agentic workloads 2 Codex, OpenCode 1 5,986 tok
Nishant-Chaudhary5338/mcp-code-indexer npmjs.com Index any TypeScript/React repo (incl. monorepos) into a queryable code graph — npx CLI, H 2 Claude Code 1 1,376 tok
askads/mcp-yandex-metrica npmjs.com MCP server for Yandex Metrica — web analytics (traffic, sources, behavior, goal conversion 2 Claude Code 1 1,691 tok
sandraschi/demo-vid-mcp Fleet demo video pipeline — narrated walkthroughs synced to true speech length, with real 2 Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf 6 779 tok
crunchtools/mcp-gitlab Secure MCP server for GitLab projects, merge requests, issues, pipelines, and search 2 Claude Code 1 857 tok
cyanheads/faostat-mcp-server npmjs.com Global food & agriculture statistics from the UN FAOSTAT bulk-download corpus, served from 2 Claude Code, Codex, OpenCode 2 15,828 tok
cyanheads/devops-status-mcp-server npmjs.com Check vendor status pages, inspect SSL/TLS certificates, verify DNS propagation, and get i 2 Claude Code, Codex, OpenCode 2 14,214 tok
cyanheads/clipboard-mcp-server npmjs.com System clipboard access for MCP clients 2 Claude Code, Codex, OpenCode 2 6,298 tok
danafitkowski/cpp-cpm-engine mcp.criticalpathpartners.ca Forensically-defensible CPM engine. AACE-canonical. Daubert-disclosed. Bit-identical JS<-> 2 Claude Code 1 1,668 tok
dockndevai/mcp-clickhouse dockndevai.github.io MCP server for ClickHouse — explore, query, and manage with SQL-classification-based secur 2 Claude Code 1
fr33dr4g0n/agentry-public agentry.sh Agentry MCP and Claude plugin/skill for agent-native analytics, error logging, and deploy 2 Claude Code 1 522 tok
ex3lite/mcp_rzd_tickets 2 Codex, OpenCode 1 115 tok
guillem/stallhunt Linux-first command-line performance triage 2 Codex, OpenCode 1 1,984 tok
george-bobby/mcp-modal The MCP control plane for Modal 2 Claude Code 1 4,010 tok
gregario/hearthstone-oracle Hearthstone MCP server with card search, deck analysis, and strategy coaching 2 Claude Code 1 654 tok
hrtips/cvx CVX — structured input, professional output. YAML in, designed CV PDFs out, entirely on yo 2 Claude Code 5
kindrat86/agentmail sanctionsai.dev Compliance & verification toolkit for AI agents — OFAC sanctions screen, KYA, transaction 2 Claude Code 1 658 tok
keel-trade/keel-trade usekeel.io Keel — CLI and MCP server for AI-driven crypto strategy development on Hyperliquid 2 Codex, OpenCode 1 3,332 tok
matematicsolutions/kio-orzeczenia-mcp matematicsolutions.com MCP server for Polish public-procurement case law (National Appeals Chamber, KIO) via orze 2 Claude Code 1
mahabubul470/gpp mahabubul470.github.io AI-native version control in Rust — continuous capture, encrypted knowledge graph, agent g 2 Claude Code 1 2,003 tok
mlorentedev/pdf-modifier-mcp MCP server + CLI for PDF text replacement with font style preservation 2 Codex, OpenCode 1 2,152 tok
noclickapp/noclick noclick.com Build agents to automate any background task; works with your ChatGPT/Claude subscription. 2 Claude Code, Codex, OpenCode 7 2,301 tok
pijusz/mcp-gsc Google Search Console MCP server — query performance, sitemaps, indexing & more via natura 2 Claude Code, Codex, OpenCode 2 1,181 tok
questdb/mcp-server-questdb questdb.com QuestDB MCP server connects coding agents to a running QuestDB Web Console. The agent gets 2 Claude Code 1
sandraschi/overte-mcp Overte (classic Vircadia-lineage) MCP server + dashboard for domain admin and entity orche 2 Codex, Cursor, OpenCode 2 606 tok
sluyasu/OpenInsurance sluyasu.github.io A brain for a country's insurance market: a self-sufficient, open-source, country-agnostic 2 Claude Code 1 1,305 tok
sseshachala/agent-booster conductai.ai Agent Booster — MCP server that reduces Claude token usage 60-90% via symbol-aware code se 2 Claude Code 6 136 tok
tufantunc/axiom-advanced-math-mcp npmjs.com Exact symbolic math for LLMs: integrals, equations, matrices, and claim verification via G 2 Codex, OpenCode 1 1,272 tok
Cleo-Labs-IA/skills_library cleolabs.co Comply — All-in-one compliance skills library for AI coding agents. 12 production-grade sk 2 Claude Code 1 3,824 tok
cryptographer11/cryptoscholar Crypto technical analysis MCP server powered by Claude AI 2 Claude Code 1 1,363 tok
Catfish-75/claw-task-hub Local-first, Linear-like task hub for AI agents and agentic harnesses 2 Codex, OpenCode 1 472 tok
ssheleg/sheleg-design-skill skills.sshlg.me Visual-system skill for coding agents: a library of locked style packs, design tokens, cin 2 Codex, OpenCode 1 27 tok
SenMuShare/senmu-buildos AI-native BuildOS for Codex, Claude Code, Doubao, WorkBuddy and ZCode: product discovery, 2 Codex, OpenCode 1 401 tok
govza/mlo-mcp 2 Claude Code 1 163 tok
WhiteMuush/Your-Claude-DevOps Ready-to-use Claude Code configuration for Dev and Ops work: global rules, 29 skills, hook 2 Claude Code 1 888 tok
KhaiTrang1995/claude-code-structure A ready-to-use Claude Code project scaffold — rules, commands, skills, agents, and hooks i 2 Claude Code 2 149 tok
ddalgrande/dining-places-skill Agent Skill that turns your Google Maps saved places into a personal dining knowledge base 2 Claude Code, Codex, OpenCode 2 555 tok
adityaarakeri/senior-agent-skills adityaarakeri.github.io Eight portable SKILL.md playbooks that make coding agents work like careful senior enginee 2 Codex, OpenCode 1 487 tok
equinor/fusion-skills Fusion repo for agent skills 2 Claude Code, Codex, GitHub Copilot, OpenCode 11 5,529 tok
RandyNorthrup/high-quality-projects-skill Vendor-neutral project discovery, feature delivery, and quality retrofit. Scan and enhance 2 Codex, GitHub Copilot, OpenCode 2 1,824 tok
Fandhe-AI/agent-cli-skills 2 Claude Code, Codex, OpenCode 9 8,413 tok
coval-ai/mcp-server coval.dev MCP server for Coval that enables AI assistants to launch evaluations, manage test sets, a 2 Codex, OpenCode 1 895 tok
b-mendoza/agent-skills A collection of reusable skills for AI-assisted development workflows 2 Claude Code, Codex, OpenCode 2 1,237 tok
MECoban/garmin-ai-coach Fully automated self-hosted AI marathon coach from Garmin Connect (Cloudflare-bypass auth, 2 Codex, OpenCode 1 466 tok
DespotB/handelsregister-cli Search the German commercial register (Handelsregister) and download all registry document 2 Claude Code, Codex, Gemini CLI, OpenCode 3 1,057 tok
gzb1128/opencode-plugin A CLI tool that brings the Claude Code plugin marketplace ecosystem to OpenCode — install, 2 Codex, OpenCode 1 1,823 tok
ventusff/claude-model-guard 🚨 Claude Code statusline plugin that catches silent model downgrades — theme-proof full-w 2 Claude Code, Codex, OpenCode 2 2,167 tok
avanturer/claude-bestpractice Enforcement, memory and parallel-session coordination for Claude Code. The Stop gate runs 2 Claude Code 1