44,996 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 agents8,544Claude Code6,892Git and workflow3,622Data and AI3,580Backend and APIs3,558Languages3,492Planning3,321Code review2,907Testing2,690DevOps and cloud2,489Writing and docs2,484Memory and context2,374Research2,321Frontend2,311Security2,178Project management1,971
All Claude Code32,539 Codex24,879 OpenCode23,799 GitHub Copilot3,723 Gemini CLI2,040 Cursor1,772 Windsurf202 Kiro116
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| ironlint/ironlint Agentic-native linting tool to enforce deterministic quality gates | 20 | Claude Code, Codex, OpenCode | 2 | 1,745 tok |
| fauguste/boondmanager-mcp-server mcp server for boondmanager | 20 | Claude Code | 1 | 20,707 tok |
| VictorVVedtion/ouro-loop victorvvedtion.github.io Give AI coding agents (Claude Code, Cursor, Aider, Codex) a structured autonomous loop wit | 20 | Claude Code | 1 | 1,281 tok |
| kriasoft/mcp-client-gen medium.com Turn any MCP server into a type-safe TypeScript SDK in seconds - with OAuth 2.1 and mul | 20 | Claude Code, Codex, OpenCode | 2 | 1,782 tok |
| dayvsonlima/catuaba 🍷 Build full-stack Go web apps in minutes, not days. Rails-like CLI with Gin, GORM, Templ | 20 | Claude Code | 1 | 2,260 tok |
| last9/mithai docs.mithai.dev AI agent framework for infrastructure operations. | 20 | Claude Code | 1 | 1,045 tok |
| beyond5959/acp-adapter Bridging Codex , Claude Code and Pi to Agent Client Protocol (ACP) with Go. | 20 | Claude Code, Codex, OpenCode | 2 | 2,572 tok |
| akougkas/wtf-p The academic meta-prompting framework for AI agents like Claude Code, Gemini CLI, OpenCode | 20 | GitHub Copilot | 1 | 108 tok |
| rishigundakaram/cadquery-mcp-server MCP server providing CAD generation and verification tools using CAD-Query | 20 | Claude Code | 1 | 609 tok |
| SkeneTechnologies/plg-skills | 20 | Codex, GitHub Copilot, Cursor, OpenCode | 3 | 596 tok |
| grafana/grafana-cube-datasource grafana.com A Grafana data source plugin that brings semantic layer analytics via Cube. Define metrics | 20 | Codex, Cursor, OpenCode | 2 | 997 tok |
| iAmMccc/ai-essentials Essential AI knowledge — from understanding AI (Tokens, hallucinations, Agents) to using A | 20 | Claude Code | 6 | — |
| HWYD/ai-mind An AI Native Runtime Skeleton that continuously evolves by version. It starts with a local | 20 | Claude Code, Codex, OpenCode | 17 | 3,698 tok |
| alicomert/pixcode Self-hosted AI coding agent control plane — Claude Code, Codex, Gemini CLI, Cursor, Qwen & | 20 | Codex, OpenCode | 1 | 3,371 tok |
| cyanheads/toolkit-mcp-server npmjs.com Generate random IDs, QR codes, and hashes, encode and decode values, and geolocate IPs, pl | 20 | Claude Code, Codex, OpenCode | 2 | 17,918 tok |
| jonradoff/chessmata chessmata.metavert.io Chessmata: chess game for humans and AI agents | 20 | Claude Code | 1 | 4,353 tok |
| veryfront/veryfront-code veryfront.com Full-stack framework for building AI apps and agents with TypeScript and React. Works with | 20 | Claude Code, Codex, OpenCode | 9 | 4,626 tok |
| romiluz13/pi-agent-skills | 20 | Codex, OpenCode | 1 | 584 tok |
| workato-devs/recipe-skills Connector-specific knowledge for AI coding agents building Workato recipes. Datapill synta | 20 | Claude Code, Codex, OpenCode | 8 | 1,061 tok |
| BoxLogoDev/sapstack Universal SAP skills and agents for Claude Code — FI, CO, TR, MM, SD, PP, HCM, SFSF, ABAP, | 20 | Claude Code, Codex, GitHub Copilot, Kiro, OpenCode, Windsurf | 11 | 15,008 tok |
| natnew/awesome-ai-scientists natnew.github.io A curated collection of resources for building “AI Scientist” systems: AI that assists sci | 20 | Claude Code, Codex, OpenCode | 2 | 4,164 tok |
| null-object-0000/ai-clash ai-clash.snewbie.site AI Clash: ask once and compare multiple web-based AIs side by side; supports Chinese and E | 20 | Claude Code | 1 | 2,326 tok |
| lestrrat-ai/claude-code-plugins | 20 | Claude Code, Codex, OpenCode | 2 | 4,025 tok |
| viteinfinite/sync-skills Synchronize agent skill definitions between .claude and .codex directories | 20 | Claude Code, Codex, OpenCode | 12 | 277 tok |
| airano-ir/skillhub skills.palebluedot.live Open-source marketplace for AI Agent skills | 20 | Claude Code | 1 | 1,276 tok |
| marcorusc/mcp-biomodelling-servers A repository that stores all the MCP servers for creating biological mechanistic models. I | 20 | GitHub Copilot | 1 | 3,402 tok |
| ilgizar-valiullin/mcp-web-hound npmjs.com Unified MCP search server with 8 providers, caching, reranking, and rate limits | 20 | Codex, OpenCode | 1 | 519 tok |
| hjqcan/GoodMemory npmjs.com Local-first, auditable memory layer for AI apps and coding agents — Codex, Claude Code, MC | 20 | Claude Code, Codex, OpenCode | 2 | 3,320 tok |
| shane9coy/Agent-Skill-Architecture-Guide katana-agent.com A comprehensive reference for building and organizing AI agent skills across Claude Code, | 20 | Codex, OpenCode | 1 | 2,387 tok |
| PrunaAI/pruna-skills dashboard.pruna.ai Agent skills and plugins to give your agents access to Pruna API and generation workflows. | 20 | Codex, OpenCode | 1 | 1,105 tok |
| risingwavelabs/risingwave-mcp go.risingwave.com RisingWave MCP Server. | 20 | Codex, OpenCode | 1 | 578 tok |
| dbos-inc/agent-skills | 20 | Claude Code | 1 | 1,192 tok |
| gabrielmoreira/agent-skills-mirror Periodically refreshed mirror of agents, skills, prompts and instruction files from public | 20 | GitHub Copilot | 1 | 191 tok |
| stufently/yandex-mcp stufently.github.io MCP servers for Yandex APIs — Search, Wordstat, Webmaster, Metrika, Direct. 94 tools, Clau | 20 | Claude Code | 2 | — |
| donnfelker/loop-skills Autonomous, self-re-prompting agent loops for Claude Code — packaged as independently-inst | 20 | Claude Code, Codex, OpenCode | 2 | 1,262 tok |
| ai-screams/HwpForge ai-scream.ai Rust library for programmatic control of Korean HWPX documents — Markdown→HWPX conversion, | 20 | Claude Code | 1 | 1,891 tok |
| j4th/mtg-mcp-server Unified MCP server composing Scryfall, Commander Spellbook, 17Lands, EDHREC, Moxfield, Spi | 20 | Claude Code, Codex, OpenCode | 28 | 4,668 tok |
| sawrus/agent-guides sawrus.github.io One set of project rules for Claude Code, Codex and OpenCode. A quality gate runs your che | 20 | Codex, OpenCode | 1 | 733 tok |
| kimimgo/viznoir kimimgo.github.io VTK is all you need. AI-Ready VTK visualization for science and engineering. | 20 | Claude Code | 1 | 2,647 tok |
| OrangeproAI/orangepro-mcp OrangePro local-first CLI + MCP server for behavior mapping, grounded test generation, and | 20 | Claude Code | 1 | 1,550 tok |
| epicsagas/epic-harness epicsagas.github.io Multi-tool AI agent harness — 22 skills, self-evolving engine, unified memory, autonomous | 20 | Claude Code, Codex, OpenCode | 3 | 4,815 tok |
| kamioj/spec-workflow Personal Claude Code plugin marketplace for SDD workflow (research / ask / propose / apply | 20 | Claude Code | 1 | 5,184 tok |
| ZenMux/skills ZenMux Skills Repo | 20 | Claude Code, Codex, OpenCode | 2 | 1,286 tok |
| rblank9/cross-claude-mcp crosswi.re A message bus that lets AI assistants talk to each other. Works with Claude, ChatGPT, Gemi | 20 | Claude Code | 1 | 536 tok |
| rfxn/rdf rfxn.github.io Governance-driven AI development framework -- convention enforcement, quality gates, and d | 20 | Claude Code | 1 | 1,008 tok |
| wd041216-bit/zero-api-key-web-search pypi.org Jev-powered search infrastructure for AI agents: zero API keys, MCP-ready, LLM-context awa | 20 | Claude Code, Codex, Gemini CLI, Kiro | 5 | 644 tok |
| cofin/flow Context-Driven Development toolkit for AI agents — spec-first planning, TDD workflow, and | 20 | Codex, OpenCode | 1 | 815 tok |
| ashlrai/phantom-secrets phm.dev Stop AI coding agents from leaking your API keys. Local proxy + MCP that swaps real secret | 20 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 4 | 7,676 tok |
| ChouChiu/heya-skill hs.wwchun.top In-depth analysis based on Bilibili creator Heya's video titles, teaching AI to learn Heya | 20 | Codex, OpenCode | 1 | 1,318 tok |
| Lykhoyda/ask-llm lykhoyda.github.io MCP server and CLI for second opinions: lets Claude Code, Codex and Cursor consult Codex, | 20 | Codex, OpenCode | 1 | 1,775 tok |