How real projects configure their agents

43,652 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 agents7,588Claude Code6,636Data and AI3,676Backend and APIs3,496Languages3,402Planning3,219Git and workflow3,187Code review2,745Testing2,374Memory and context2,364DevOps and cloud2,310Writing and docs2,309Research2,295Frontend2,261Security2,021Productivity1,715

All Claude Code31,998 Codex23,222 OpenCode22,170 GitHub Copilot3,550 Gemini CLI1,918 Cursor1,738 Windsurf137 Kiro80

Project Stars Configures Files Always loaded
HBarefoot/engram 🧠 Persistent memory for AI agents. SQLite for agent state. Zero cloud dependencies. Local 8 Claude Code 1 6,531 tok
hrshx3o5o6/brocogni npmjs.com semantic browser observation for AI agents via MCP, 100% local, zero telemetry 8 Codex, OpenCode 1 1,200 tok
seiji/inoreader-mcp-server 8 Claude Code 3 317 tok
SidneyBissoli/bcb-br-mcp bcb.sidneybissoli.com MCP server for Brazil Central Bank (BCB) data — Selic, IPCA, exchange rates, GDP for AI ag 8 Claude Code 1 7,286 tok
sachinrai308/Unity-Skills sachinrai308.github.io 🤖 Automate Unity Editor tasks with AI using JSON command files for efficient scene manage 8 Claude Code 1 45 tok
danieljustus/symaira-eraseme symaira.com Automated data broker removal tool ⌫ close your accounts, erase your data. 8 Codex, OpenCode 1 2,574 tok
pekral/cursor-rules pekral.cz PHP and Laravel Cursor rules — coding standards, testing, and conventions for the Cursor e 8 Claude Code 1 627 tok
stepanov1975/hermes-local-knowledge Hermes Agent plugin for local knowledge search and artifact routing—find the right skill, 8 Codex, OpenCode 1 1,586 tok
Jignesh-Ponamwar/skills-mcp skills-mcp-jignesh.vercel.app A self-hostable, open-source, semantically-searchable Agent Skills registry delivered over 8 Claude Code, GitHub Copilot 2 1,519 tok
rogerdigital/vault-inspector community.obsidian.md An Obsidian vault health checker for finding broken links, orphan attachments, duplicate f 8 Claude Code, Codex, OpenCode 2 2,410 tok
JordanCoin/codingskills Coding principles for Claude Code and AI agents. KISS, DRY, SOLID, YAGNI, separation of co 8 Claude Code, Codex, OpenCode 2 893 tok
andyhtran/deepwiki-by-cc Self-hosted, open-source DeepWiki alternative — agentic wiki generator for any GitHub repo 8 Claude Code 1 198 tok
cocaxcode/api-testing-mcp npmjs.com The most complete MCP server for API testing. 27 tools: requests, assertions, flows, OpenA 8 Claude Code 1 959 tok
pendpost/pendpost pendpost.com The agent-first social media planner: an AI agent drafts and schedules posts across Instag 8 Codex, OpenCode 1 8,660 tok
zhurong2020/pyobfus pyobfus.readthedocs.io AST-based Python obfuscator with reverse stack-trace mapping — obfuscate before shipping a 8 Claude Code, Codex, OpenCode 2 29,028 tok
jcucci/dotnet-sherlock-mcp MCP server that uses reflection to provide LLM's with knowledger about dotnet classes, the 8 Claude Code, Codex, OpenCode 2 2,997 tok
thuandiep1707/codex-harness-javascript Multi-agent harness for OpenAI Codex with Jira-backed workflows, pause/resume, progressive 8 Claude Code, Codex, OpenCode 4 5,397 tok
night4me/pfsense-mcp-server night4me.github.io A security-first MCP server for pfSense — READ-only today by design; WRITE is staged behin 8 Codex, OpenCode 1 2,371 tok
ljchang/mecha docs.mecha-factory.ai A standalone agent harness in Rust: a provider-agnostic loop, MCP tools, a path jail and p 8 Claude Code, Codex, OpenCode 4 8,185 tok
suryast/indonesia-civic-stack 🇮🇩 Production-ready Python SDK + MCP server for 14 Indonesian government data sources — 8 Claude Code, Codex, GitHub Copilot, Cursor, OpenCode 4 2,994 tok
zivtech/accessibility-skills zivtech.github.io Accessibility Skills (accessibility-skills): AI skills that plan, review, test, and audit 8 Claude Code, Codex, OpenCode 2 4,799 tok
Capta1nRaj/goshipit npmjs.com GoShipIt is a Claude Code skill that audits your codebase before every deploy. 188 checks 8 Claude Code 1 667 tok
thehesiod/psquare-mcp Parent 8 Claude Code, GitHub Copilot 2 8,516 tok
phuongrealmax/code-guardian codeguardian.studio Code Guardian Studio – AI-powered code refactor engine for large repositories, built on Cl 8 Claude Code 8
garoon/garoon-mcp-server Garoon official MCP server 8 Claude Code, GitHub Copilot 5 1,832 tok
Aaronjacobs000/sophos-central-mcp 8 Claude Code 1 1,304 tok
s-morgan-jeffries/omnifocus-mcp MCP server for OmniFocus integration - enables Claude and other MCP clients to interact wi 8 Claude Code 10
moonx010/hive-memory npmjs.com Cross-project memory for AI coding agents. MCP server that maintains context, decisions, a 8 Claude Code, Codex 5 2,134 tok
Remskill/Cortex Cortex: Open-Source AI Memory for your Codebase. Works with Claude CLI and others. It inde 8 Claude Code 1 1,401 tok
Community-VyProjects/VyMCP MCP server for VyOS routers, powered by VyManager — lets AI agents read and manage routers 8 GitHub Copilot 1 479 tok
GhostTypes/pokemon-go-mcp MCP Server for Pokemon Go 8 Claude Code 20 1,442 tok
agatho/trinitycore-mcp Model Context Protocol server for TrinityCore development 8 Claude Code 5
gdigora/yandex-mail-mcp MCP server for Yandex Mail - read, search, and send emails via IMAP/SMTP 8 Claude Code 2 428 tok
aryaminus/astro astro-api-a2rc.onrender.com Astrology MCP server & Agent Skill — birth charts, transits, synastry across Western, Vedi 8 Claude Code, Codex, GitHub Copilot, Cursor, OpenCode 4 1,589 tok
ZhangDongyang800/Aseprite_MCP An MCP for Aseprite that allows AI to understand you 8 Claude Code 1 2,098 tok
ilyannn/wallos-mcp MCP for the Wallos subscription management app 8 Claude Code 1 1,912 tok
Ostico/bruno-mcp-studio npmjs.com MCP server for Bruno: an AI agent authors, reads and runs .bru and .yml API collections. N 8 Claude Code 1 1,711 tok
Maxim-Mazurok/teams-api AI-native Microsoft Teams integration — read conversations, send messages, and manage memb 8 GitHub Copilot 2 2,004 tok
MetriLLM/metrillm metrillm.dev Benchmark local LLM models: speed, quality, and hardware fitness scoring. CLI, MCP server, 8 Claude Code, Codex, OpenCode 2 2,834 tok
ProductOfAmerica/mcp-server-kicad pypi.org KiCad MCP server: 100+ Model Context Protocol tools that let an AI assistant do schematic 8 Claude Code 1 3,542 tok
malkreide/swiss-transport-mcp MCP Server for Swiss public transport – OJP journey planner, real-time departures, disrupt 8 Claude Code 3 5,522 tok
vanducng/skills skills.vanducng.dev A daily-driver collection of skills for agentic coding - a portable, agent-agnostic catalo 8 Claude Code, Codex, OpenCode 2 974 tok
hermes-labs-ai/hermes-blind hermes-labs.ai Recovers the original goal of a long Claude Code or Codex session from its first user turn 8 Claude Code, Codex, OpenCode 2 348 tok
dimamak/sdp dimamak.github.io Nobody has the time - or the will - to sit down and write a post every day. Social Daily P 8 Claude Code 1 220 tok
mnzralee/claude-multi-agent-architecture manazir.dev A production-ready, reusable template for building sophisticated multi-agent AI systems wi 8 Claude Code, Codex, OpenCode 6 2,944 tok
husker/a2acast Zero-infrastructure A2A messaging between AI agents on different machines — Claude, ChatGP 8 Claude Code, Codex, GitHub Copilot, OpenCode 4 2,517 tok
LinHao-city/StoryMind linhao-city.github.io 🎬 AI plans your shot list like a director, then generates the film. LLM storyboard planni 8 Claude Code, Codex, GitHub Copilot, OpenCode 81 271 tok
ychamel/RepoResident Git-native project intelligence harness for AI coding agents. Adds persistent state, codeb 8 Claude Code, Codex, OpenCode 2 1,673 tok
Wenaixi/dsh-ponytail Complete port of DietrichGebert/ponytail for DSH — lazy senior mode with hook injection 8 Codex, OpenCode 1 569 tok
prefect12/codex-token-meter prefect12.github.io Native macOS menu bar apps for tracking Codex and Claude Code token usage, quota, cache ef 8 Codex, OpenCode 1 1,357 tok