1,728 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 agents7,410Claude Code6,578Data and AI3,695Backend and APIs3,487Languages3,404Planning3,188Git and workflow3,106Code review2,712Memory and context2,351Testing2,325Research2,289DevOps and cloud2,283Writing and docs2,279Frontend2,245Security1,983Productivity1,702
All Claude Code32,024 Codex23,149 OpenCode21,923 GitHub Copilot3,513 Gemini CLI1,905 Cursor1,728 Windsurf83 Kiro58
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| vlad-ryzhkov/ai-context-engineering-for-qa AI Context Engineering for QA | 6 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 37 | 1,714 tok |
| patrykkopycinski/elastic-cursor-plugin | 6 | Claude Code, Cursor | 26 | — |
| CodeTeng/harness-template Harness Engineering template, ready to use | 6 | Claude Code, Codex, Cursor, OpenCode | 11 | — |
| karlng279/ai-ready-product-workflow-v2 karlng279.github.io AI-Ready Product Workflow V2 | 6 | Claude Code, Codex, Cursor, Gemini CLI, OpenCode | 12 | 5,467 tok |
| DmiyDing/clarify-first Enforce risk-based alignment for AI Agents. Stop Claude/Cursor from guessing on vague or h | 6 | Cursor | 1 | 947 tok |
| FavioVazquez/mollify Deterministic codebase intelligence for Python | 6 | Claude Code, Codex, Cursor, Gemini CLI, OpenCode | 24 | 4,352 tok |
| srbryers/slope SLOPE — Sprint Lifecycle & Operational Performance Engine. Golf-metaphor sprint scoring fo | 6 | Claude Code, Codex, Cursor, OpenCode | 11 | 4,052 tok |
| abidjappie/nextjs-quick-starter A modern Next.js starter template with best practices built-in. Features Next.js 16, React | 6 | Cursor | 1 | 16,954 tok |
| aegntic/cognitive-os aegntic.github.io Cognitive OS v3.0 — Universal AI agent operating system specification. 16-section cognitiv | 6 | Claude Code, Codex, Cursor, Gemini CLI, OpenCode | 4 | 8,074 tok |
| rizkyhaksono/portfolio-v3 nateee.com Portfolio v3 using Next.js 16 with SSR, CSR, ISR, Azure Web App, Portainer. | 6 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 6 | 4,165 tok |
| nosenfield/ai-project-template | 6 | Claude Code, Cursor | 13 | — |
| KayaErhan/cursor-agent-tr Cursor IDE için tam otomatik yazılım geliştirme ajanı | 6 | Claude Code, Cursor | 27 | — |
| tansunyj/aigczero A project for reducing the AI feel. | 6 | Cursor | 1 | 11,864 tok |
| marlondivino/open-code-as-mcp The main goal of this MCP is to save tokens in complex Antigravity tasks by allowing OpenC | 6 | Cursor, Gemini CLI | 2 | 305 tok |
| kai-builder/stacksagent | 6 | Claude Code, Cursor | 2 | — |
| sportsanalytics-world/OPTA_api_docs MCP Server for OPTA API Documentation - Automatically discover and test football API endpo | 6 | Cursor | 1 | 195 tok |
| sandraschi/filesystem-mcp FastMCP 3.2.0+ server plus webapp for comprehensive file system operations, Git repository | 6 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 8 | 1,627 tok |
| hirokidaichi/mcp-tts-say MCP Server Tool for Text To Speech | 6 | Cursor | 1 | 54 tok |
| TCoder920/open-legal-compliance-mcp Model Context Protocol server for legal compliance analysis using free/open government API | 6 | Claude Code, Cursor | 4 | — |
| Sounio-lang/sounio sounio.vercel.app Self-hosted systems + scientific programming language with epistemic types, uncertainty pr | 6 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 12 | 15,060 tok |
| muhammad1438/academic-writer-skills 27 specialist academic writing skills for Claude Code, Gemini CLI, and Cursor IDE | 6 | Claude Code, Codex, Cursor, Gemini CLI, OpenCode | 4 | 10,158 tok |
| andvolodko/html5-game-editor andvolodko.github.io Browser-based HTML5 game editor and runtime: PixiJS 2D, Three.js 3D, React UI, and a TypeS | 6 | Cursor | 12 | — |
| felixzhu97/explore-chat whatschat-web.vercel.app A social and messaging platform with feed, chat, and calls. It is written in TypeScript wi | 6 | Claude Code, Cursor | 6 | — |
| vines90/foreign-trade-cursor-skills Foreign trade Cursor Agent skills: lead generation, background checks, SMTP, Feishu Bitabl | 6 | Cursor | 9 | — |
| tchivs/aktools-pro 🚀 AkTools Pro: An enhanced financial MCP server. Supports A-shares, U.S. and Hong Kong st | 6 | Codex, Cursor, OpenCode | 2 | 1,933 tok |
| brooksy4503/rss-agent-viewer | 6 | Claude Code, Cursor | 1 | — |
| cacr92/WeReply Automatic WeChat chat reply assistant | 6 | Claude Code, Codex, Cursor, OpenCode | 50 | 4,270 tok |
| yu-iskw/llmops-demo-ts Demonstrate LLMOps in TypeScript | 6 | Claude Code, Cursor | 29 | 1,463 tok |
| dnsabby/MSITM.6341 Python Class Shared Project Directory | 6 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 61 | 933 tok |
| jl-cmd/claude-dev-env | 5 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 7 | 839 tok |
| AishwaryShrivastav/vibe-testing Code-aware browser testing agent — 13 MCP tools for AI editors (Claude Code, Cursor, Winds | 5 | Claude Code, Cursor | 2 | 1,603 tok |
| VirSanghavi/axis useaxis.dev one coordination board for your team's coding agents. claude code, cursor and codex share | 5 | Cursor | 1 | 1,045 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 |
| doc2mcp/doc2mcp doc2mcp.vercel.app Paste any docs URL — LangChain, Stripe, your own — and get a hosted MCP server Cursor can | 5 | Cursor | 1 | — |
| 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 | 851 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 |
| amittamari/hop Fast full-text search and resume for coding-agent sessions | 5 | Claude Code, Codex, Cursor, OpenCode | 17 | 694 tok |
| Priyans-hu/tokenmeter priyans-hu.github.io macOS menu bar app for Claude Code token usage visualization | 5 | Claude Code, GitHub Copilot, Cursor | 3 | 1,216 tok |
| ashp15205/scankii A local-first SAST & Runtime Security scanner built exclusively for LLM Agents. Detects cr | 5 | Cursor | 1 | 123 tok |
| flitzrrr/agent-skills Curated collection of AI agent skills for Antigravity, Claude Code, OpenCode & similar AI | 5 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 4 | 1,855 tok |
| fakiho/neohive neohive.alionix.com One command. Your AI agents can talk to each other. The MCP collaboration layer for Claude | 5 | Claude Code, GitHub Copilot, Cursor, Gemini CLI | 19 | 5,336 tok |
| Gingg7260/affiliate-skills Automate affiliate marketing with 45 AI skills for research, content, pages, tracking, and | 5 | Claude Code, Cursor | 2 | 1,599 tok |
| sandraschi/ai-games-collection Web-based games collection with 100+ games and AI opponents | 5 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 5 | 2,134 tok |
| shahzebqazi/mhn-ai-agent-memory shahzebqazi.github.io AI agent memory using Modern Hopfield Networks — no LLM calls, no database, one matrix mul | 5 | Cursor | 1 | — |
| sachinshelke/ToolsConnector toolsconnector.github.io Open-source Python library for 73 API connectors — Gmail, Slack, GitHub, Stripe, OpenAI, A | 5 | Claude Code, Codex, Cursor, OpenCode | 11 | 1,364 tok |
| ahmetbarut/mcp-database-server A Model Context Protocol (MCP) server that provides multi-database query execution capabil | 5 | Claude Code, Cursor | 2 | 4,081 tok |
| ApexIQ/skillsmith pypi.org One command to make any repo agent-ready. Scaffolds .agent/ workspace, platform instructio | 5 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 5 | 3,432 tok |
| honeycomb-Technologies/Mitsuro Mitsuro is a self-hosted AI workspace for coding, research, and durable agent work. | 5 | Claude Code, Codex, Cursor, OpenCode | 9 | 6,399 tok |
| provasign/prism provasign.dev Semantic change intelligence for coding agents — complete impact sets, edit-ready context, | 5 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Windsurf | 14 | 5,289 tok |
| WithAutonomi/saorsa-core P2P networking library - DHT, QUIC transport, four-word addresses, MCP integration. (Rust) | 5 | Claude Code, Codex, Cursor, OpenCode | 10 | 3,702 tok |