22,224 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 agents7,622Claude Code6,647Data and AI3,678Backend and APIs3,504Languages3,404Planning3,218Git and workflow3,203Code review2,744Testing2,378Memory and context2,367Writing and docs2,318DevOps and cloud2,312Research2,291Frontend2,259Security2,027Productivity1,717
All Claude Code32,008 Codex23,279 OpenCode22,224 GitHub Copilot3,555 Gemini CLI1,920 Cursor1,736 Windsurf139 Kiro81
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| upgrade-ventures/upgradeseo upgrade.ventures Truly free, open-source SEO tools you self-host: keyword research, rank tracking, backlink | 1 | Claude Code, Codex, OpenCode | 18 | 1,300 tok |
| QuarkOS/Cairn Typed facts that outlive the session. Agents assert, recall, and retract through JSON or M | 1 | Claude Code, Codex, Cursor, OpenCode | 11 | 557 tok |
| IrisRainbowNeko/codex-mission-ledger Deterministic MCP control plane for native hierarchical Codex agents. | 1 | Codex, OpenCode | 1 | 106 tok |
| EvexU2/evex-agent-messaging Provider-neutral MCP messaging gateway for EVEX coding agents | 1 | Codex, OpenCode | 1 | 431 tok |
| Tim0320/IsaacSim-MCP | 1 | Codex, OpenCode | 2 | 94 tok |
| TimWongUp/keepygaga Cross-agent core memory in local Markdown, with MCP tools, native hooks, and installers fo | 1 | Claude Code, Codex, OpenCode | 2 | 2,140 tok |
| tukimtk-design/openworker-ecommerce-mcp MCP Server for Openworker to control Chrome/Edge for Shopee, TikTok Shop, and Lazada produ | 1 | Claude Code, Codex, OpenCode | 2 | 488 tok |
| dominick253/roku-debug-mcp | 1 | Codex, OpenCode | 1 | 989 tok |
| limars874/chatgpt-file-mcp Local read-only, policy-constrained filesystem MCP server | 1 | Codex, OpenCode | 1 | 84 tok |
| uzairayed/lc-editor Local MCP video editor. ffmpeg renders 9:16 reels. | 1 | Codex, OpenCode | 1 | 165 tok |
| hansakoch/cf-memory-plugin CF Memory Plugin — Cloudflare Agent Memory for AI coding agents and LLM frameworks. Persis | 1 | Codex, OpenCode | 1 | 691 tok |
| Gavinxiong668/health-mcp | 1 | Claude Code, Codex, OpenCode | 4 | 2,291 tok |
| juanquy/AI-data-refinery drefinery.freshbeats.ai A high-performance, edge-native Data Refinery Engine built on Cloudflare's serverless AI s | 1 | Claude Code, Codex, OpenCode | 51 | 591 tok |
| ZiChenWang114514/cdxml-toolkit-community ChemDraw MCP server and Python toolkit for editable CDXML, chemical structure drawing, SAR | 1 | Claude Code, Codex, OpenCode | 2 | 4,180 tok |
| no-materials/hird A typed language for LLM agent systems on BEAM: effect-row tracking, auditable tool effect | 1 | Claude Code, Codex, OpenCode | 2 | 1,667 tok |
| samiashi/chrono24-mcp npmjs.com Chrono24 watch-marketplace MCP server - search & inspect listings from Claude, Codex, Curs | 1 | Codex, OpenCode | 1 | 2,872 tok |
| CreatorGeetansh/YouTube-MCP Creating a new MCP server to manager your YouTube | 1 | Claude Code, Codex, OpenCode | 2 | 3,333 tok |
| JrKrishh/connectr One shared brain for all your AI coding agents - task board, memory and file claims over M | 1 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 2,473 tok |
| meulth/geobs-mcp Open-source MCP server for accessing Basel-Stadt geospatial data via STAC, OGC API Feature | 1 | Codex, OpenCode | 1 | 118 tok |
| claimidx/claimidx claimidx.com Prior art for AI agents. Public signed claim index of failures other agents have already p | 1 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 3,966 tok |
| dalmaktube-creator/DV-Moory Self-hosted, security-hardened MCP server connecting Notion AI to approved Git repositorie | 1 | Codex, OpenCode | 1 | 131 tok |
| KevinTrinhDev/gaze It sees the page, and it acts. Drive a real, already logged-in browser from the CLI or ove | 1 | Codex, OpenCode | 1 | 1,394 tok |
| onlyoasis/gzh-mcp WeChat Official Account publishing MCP server: media upload, draft management, and freepub | 1 | Claude Code, Codex, OpenCode | 2 | 493 tok |
| spacerocket3/gbrain-code Selective, diff-aware repository cartography for coding agents | 1 | Codex, OpenCode | 1 | 114 tok |
| useburrow/furrow-forms furrowforms.com The form backend for vibe-coded websites — MCP server, agent skill, and examples for 33 st | 1 | Codex, OpenCode | 1 | 203 tok |
| code4161/memgit memgit.dev Git for AI memory — version-controlled context persistence across Claude, GPT, Gemini, Cur | 1 | Claude Code, Codex, OpenCode | 2 | 579 tok |
| matematicsolutions/mcp-eureka MCP server for Polish tax interpretations (KIS/MF) via EUREKA (eureka.mf.gov.pl). 550k+ do | 1 | Claude Code, Codex, OpenCode | 2 | 953 tok |
| frankxai/awesome-motion-design-agent-skills Web-first catalog for interface motion, web interaction, programmatic video, and motion-de | 1 | Codex, OpenCode | 1 | 925 tok |
| fetcher-sh/fetcher-skills | 1 | Claude Code, Codex, OpenCode | 1 | 2,162 tok |
| Callicrate/skills Semi-dynamic context enrichment for AI | 1 | Codex, OpenCode | 1 | 622 tok |
| link0-o/PerfLens Evidence-driven Linux performance analysis toolkit with a CLI, MCP server, and Codex Skill | 1 | Codex, OpenCode | 1 | 1,002 tok |
| eic/xrootd-mcp-server eic.github.io An MCP server that allows for querying XRootD servers by LLM agents. | 1 | Codex, GitHub Copilot, OpenCode | 2 | 3,032 tok |
| ximenchuifeng/codex-kimi-bridge Codex plugin and MCP bridge for delegating implementation work to Kimi Code | 1 | Codex, OpenCode | 1 | 2,444 tok |
| jcharveyjr/claude-chatgpt-agent-bridge Private MCP task broker for delegated work between Claude and ChatGPT/Codex agents. | 1 | Claude Code, Codex, OpenCode | 3 | 382 tok |
| ministryofjustice/hmpps-contacts-ui Frontend UI to create and maintain contacts within DPS, including potential visitors and d | 1 | Codex, OpenCode | 1 | 1,344 tok |
| Edison-Watch/Custom-MCPs | 0 | Claude Code, Codex, OpenCode | 19 | 3,080 tok |
| hsb3/opencode-sandbox Isolated opencode instances from prebuilt GHCR images, consumable as MCP servers | 0 | Claude Code, Codex, OpenCode | 5 | 980 tok |
| radthenone/ai-instruction-kit-mcp Projekt MCP który zbiera instrukcje dla cursor, vscode, github copilot, codex, kiro, kilo, | 0 | Claude Code, Codex, Cursor, OpenCode | 68 | 2,269 tok |
| rilldata/agent-skills docs.rilldata.com Agent skills for developing a Rill project | 0 | Codex, OpenCode | 1 | 53 tok |
| sairam0424/ag-bash npmjs.com 🐚 Ag-Bash: The AI-Native Shell Gateway. A production-grade, sandboxed Bash environment de | 0 | Claude Code, Codex, OpenCode | 2 | 3,472 tok |
| webmaxru/enonic-agent-skills Agent skills for Enonic XP CMS development — API reference, content migration, content typ | 0 | Codex, OpenCode | 1 | 507 tok |
| knocklabs/skills | 0 | Claude Code, Codex, OpenCode | 2 | 1,295 tok |
| tools-for-agents/anvil tools-for-agents.github.io 🔨 Throwaway Docker sandbox for agents: run code/commands in isolated, resource-limited co | 0 | Codex, OpenCode | 1 | 854 tok |
| vanppsa/oracle-models This project transforms the `oracle-models` skill into a **local MCP Server**. It classifi | 0 | Codex, Gemini CLI, OpenCode | 2 | 3,793 tok |
| huaqing0/obsidian-mcp-server Custom Obsidian MCP server with workspace control, vault structure tools, and native Excal | 0 | Claude Code, Codex, OpenCode | 2 | 13,450 tok |
| AnEntrypoint/agentgui Multi-agent GUI for AI coding assistants — Claude Code, Gemini CLI, OpenCode & more. npx a | 0 | Claude Code, Codex, OpenCode | 3 | 5,511 tok |
| AnEntrypoint/freddie ƒreddie is not a harness, its a jacket | 0 | Claude Code, Codex, OpenCode | 11 | 2,127 tok |
| dbhq-uk/verve-skill skills.dbhq.uk Agent skill that strips AI tells from prose and puts a human voice back, pitched at the re | 0 | Claude Code, Codex, OpenCode | 1 | 1,937 tok |
| kleosr/kleosrules Cursor harness pack: user rules, skills, Bash hooks, local HANDOFF memory. macOS, Linux, W | 0 | Codex, OpenCode | 1 | 476 tok |
| AgentTanuki/agent-guild agent-guild-5d5r.onrender.com The trust + settlement layer for AI agents — discover, vet, pay, and build portable reputa | 0 | Codex, Gemini CLI, OpenCode | 2 | 2,238 tok |