How real projects configure their agents

23,196 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 agents7,571Claude Code6,627Data and AI3,684Backend and APIs3,492Languages3,401Planning3,221Git and workflow3,179Code review2,740Testing2,368Memory and context2,365Writing and docs2,309DevOps and cloud2,308Research2,298Frontend2,256Security2,015Productivity1,715

All Claude Code31,984 Codex23,196 OpenCode22,145 GitHub Copilot3,551 Gemini CLI1,917 Cursor1,736 Windsurf133 Kiro79

Project Stars Configures Files Always loaded
pixeltable/pixeltable-skill Skill/Plugin for building multimodal AI applications with Pixeltable. Tables, computed col 5 Codex, OpenCode 1 551 tok
Kyure-A/nix-config NixOS configuration 5 Claude Code, Codex, OpenCode 2 294 tok
sgaabdu4/hard-eng Stateful agentic engineering workflow for local coding agents 5 Claude Code, Codex, OpenCode 14 562 tok
prantikmedhi/ClawNexus ClawNexus is a Vite + React + TypeScript console for managing OpenClaw-style agent gateway 5 Claude Code, Codex, OpenCode 2 2,445 tok
Diluka/dsh-agent-plugin-market DSH (DeepSeek Harness) plugin: uses Git repositories as an agent plugin marketplace to ins 5 Codex, OpenCode 1 1,586 tok
counterposition/pi Skills, extensions, and packages for the Pi coding agent 5 Claude Code, Codex, OpenCode 2 809 tok
TakoData/tako-mcp docs.tako.com Tako MCP gives your agent industry-leading live web search plus licensed data that the ope 5 Codex, OpenCode 1 2,917 tok
Pantani/ableton-mind pantani.github.io Definitive MCP server for Ableton Live — full LOM coverage, embedded device knowledge base 5 Claude Code, Codex, OpenCode 32 4,391 tok
NaNMesh/nan-forget Never forget. Long-term memory for any LLM. 5 Claude Code, Codex, OpenCode 9 2,972 tok
AgentsKit-io/agentskit-registry registry.agentskit.io Ready-to-use AI agents for AgentsKit — shadcn-style: copy the source into your project. re 5 Codex, OpenCode 1 328 tok
JustinBeckwith/pylon-mcp MCP server for Pylon customer support platform 5 Codex, OpenCode 1 299 tok
AlvisoOculus/optionsahoy-mcp optionsahoy.com Free equity-compensation tax optimizer for AI agents — ISO/AMT, NSO, RSU sell-vs-hold, QSB 5 Codex, Gemini CLI, OpenCode 2 2,516 tok
Digital-Threads/token-pilot npmjs.com Save 60-80% tokens when AI reads code — MCP server for token-efficient code navigation wit 5 Claude Code, Codex, OpenCode 2 1,662 tok
InvoiceXML/invoicexml-mcp mcp.invoicexml.com InvoiceXML MCP Server for global invoice compliance: Factur-X, ZUGFeRD, XRechnung, CII and 5 Codex, Gemini CLI, OpenCode 2 2,336 tok
cioffiAI/mcp-agora MCP Server with cross-agent persistent memory for AI agent fleets. Vector memory (ChromaDB 5 Codex, OpenCode 1 3,759 tok
dinglebear-ai/rtailscale npmjs.com Rust MCP server and CLI for Tailscale tailnet operations: devices, users, keys, policies, 5 Claude Code, Codex, Gemini CLI, OpenCode 4 3,084 tok
Aero25x/ASO-Copilot persocia.com Self-hosted App Store Optimization tracker with keyword rank tracking, competitor spying, 5 Claude Code, Codex, OpenCode 2 79 tok
clouatre-labs/math-mcp-learning-server Educational MCP server with math operations, matrix algebra, data visualization, and persi 5 Codex, OpenCode 1 548 tok
felixAnhalt/figma-to-code-mcp MCP server to extract Figma design information and convert it to mostly css for coding age 5 Claude Code, Codex, OpenCode 14 1,298 tok
fullstackdegen/agent-audit npmjs.com Turn Lighthouse audits into coding-agent tasks. 5 Claude Code, Codex, OpenCode 2 1,113 tok
iamalisson/inquisitor Hypothesis-driven problem solving for AI agents: probe, falsify, escalate — never blind-re 5 Codex, OpenCode 1 1,531 tok
New1Direction/korgex korgex-docs.pages.dev The verifiable AI coding agent : provider-agnostic, MCP-native, tamper-evident ledger 5 Codex, OpenCode 1 311 tok
NazarKalytiuk/tarn nazarkalytiuk.github.io CLI-first API testing tool. YAML-defined tests, structured JSON output, built for AI-assis 5 Claude Code, Codex, Cursor, OpenCode 3 5,987 tok
Kolonie-AI/kolonie-platform Kolonie AI platform monorepo — domain model, API, MCP, task engine, academy verifiers, coi 5 Codex, OpenCode 1 11,032 tok
Sapientropic/AIppocampus aippocampus.com Source-backed continuity layer for long-running AI agent relationships. 5 Claude Code, Codex, OpenCode 3 2,664 tok
Shangri-la-0428/Thronglets P2P shared memory substrate for AI agents — stigmergic knowledge network via libp2p 5 Claude Code, Codex, OpenCode 2 4,571 tok
cmd8/excalidraw-mcp npmjs.com Model Context Protocol server for Excalidraw diagrams 5 Codex, OpenCode 1 327 tok
seongwon030/velog_mcp npmjs.com An MCP server for writing and managing posts on Velog with Claude and Codex 5 Claude Code, Codex, OpenCode 2 1,560 tok
talonicdev/talonic-mcp Official Talonic MCP server. Lets AI agents extract structured data from any document via 5 Claude Code, Codex, OpenCode 2 3,895 tok
beyondwin/FixThis Point at any Jetpack Compose UI element, annotate it, and hand off source pinned prompts t 5 Claude Code, Codex, OpenCode 4 1,389 tok
mrslbt/rakuten-mcp npmjs.com MCP server for the Rakuten Web Service API. 28 read-only tools across Ichiba (e-commerce), 5 Codex, OpenCode 1 4,094 tok
benkaiser/mob-mcp-crm mobcrm.au Personal CRM - Remember your contacts better 5 Codex, OpenCode 1 990 tok
marshally/mcp-refactoring MCP server exposing Martin Fowler's refactoring catalog to LLMs 5 Codex, OpenCode 1 230 tok
vuluu2k/webcake-landing-mcp mcp.toolvn.io.vn MCP server: Webcake landing-page element schemas + AI usage hints + page-source persistenc 5 Claude Code, Codex, OpenCode 9 8,425 tok
bruchris/canvas-lms-mcp bruchris.github.io Canvas LMS MCP server — read courses, assignments, submissions, rubrics, quizzes; grade an 5 Claude Code, Codex, OpenCode 7 1,800 tok
tokenrip/cli tokenrip cli 5 Codex, OpenCode 1 9,536 tok
up2itnow0822/agentpay-mcp npmjs.com Non-custodial x402 MCP payment layer for AI agents — the open-source alternative to Vercel 5 Codex, Cursor, OpenCode 2 900 tok
Warmplane/warmplane A Local Control Plane for Deterministic, Token-Efficient MCP Operations 5 Claude Code, Codex, OpenCode 3 1,157 tok
cherninlab/ennodia ennodia.cherninlab.com MCP server that lets one AI agent ask other agents for help 5 Claude Code, Codex, OpenCode 2 153 tok
sidebutton/sidebutton sidebutton.com Open-source browser automation for AI agents. MCP server + Chrome extension + YAML workflo 5 Codex, OpenCode 1 405 tok
geeknees/wakatime-mcp npmjs.com An MCP server that exposes WakaTime summary tools over stdio. 5 Codex, OpenCode 1 333 tok
piyushpathakqa/Vigilis Agentic QA framework: Claude authors, generates, triages & self-heals Playwright tests. MC 5 Claude Code, Codex, Cursor, OpenCode 3 2,755 tok
xxxoooxoxo/wiff Harness-agnostic, deterministic, resumable multi-agent workflows — plain-JavaScript orches 5 Codex, OpenCode 1 1,288 tok
RadOrigin-LLC/RAD-Claude-Skills Marketplace of plugins and skills for Claude Code 5 Claude Code, Codex, OpenCode 2 590 tok
amittamari/hop Fast full-text search and resume for coding-agent sessions 5 Claude Code, Codex, Cursor, OpenCode 17 694 tok
Zts0hg/codexspec zts0hg.github.io A Requirements-First Spec-Driven Development (SDD) toolkit for Codex and Claude Code with 5 Claude Code, Codex, OpenCode 2 12,827 tok
overdrive-dev/aihaus-flow Intent-based, autonomous developer workflows for Claude Code 5 Claude Code, Codex, OpenCode 2 360 tok
tremtec/maestro 🎵 Maestro - an LLM Orchestrator for your Agentic Opera 5 Codex, OpenCode 1 2,743 tok
Bind/skillz.sh agent skills manager 5 Codex, OpenCode 3 1,621 tok
ludan12138/buddy-companion A small toy skill for Codex and other code agents that adds a persistent ASCII companion p 5 Codex, OpenCode 1 533 tok