23,761 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 agents8,530Claude Code6,887Git and workflow3,618Data and AI3,582Backend and APIs3,558Languages3,485Planning3,325Code review2,903Testing2,691DevOps and cloud2,482Writing and docs2,481Memory and context2,373Research2,322Frontend2,310Security2,179Project management1,971
All Claude Code32,523 Codex24,842 OpenCode23,761 GitHub Copilot3,723 Gemini CLI2,038 Cursor1,771 Windsurf201 Kiro116
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| RainFlashPoint/capital-agent-skills | 6 | Claude Code, Codex, OpenCode | 2 | 2,357 tok |
| ronjunevaldoz/kmp-agent-skills AI agent skills for Kotlin Multiplatform (KMP) development — clean architecture, feature s | 6 | Codex, OpenCode | 1 | 562 tok |
| mareurs/claude-plugins Claude Code plugin marketplace - SDD and more | 6 | Claude Code, Codex, OpenCode | 2 | 11,009 tok |
| IronAdamant/Chisel Test impact analysis and code intelligence for LLM agents. Zero dependencies. 15 MCP tools | 6 | Claude Code, Codex, OpenCode | 3 | 2,485 tok |
| dajiaohuang/shuiyuan-mcp Shuiyuan Discourse MCP with cookie login launchers | 6 | Codex, OpenCode | 1 | 1,471 tok |
| cyanheads/gutenberg-mcp-server npmjs.com Search, browse, and read 78,000+ public-domain books from Project Gutenberg with full plai | 6 | Claude Code, Codex, OpenCode | 2 | 17,774 tok |
| lineofflight/frankfurter-mcp frankfurter.dev MCP server for the Frankfurter exchange rates API | 6 | Claude Code, Codex, OpenCode | 2 | 1,643 tok |
| cyanheads/wikipedia-mcp-server npmjs.com Search Wikipedia articles, read summaries and full text, target sections, list an article' | 6 | Claude Code, Codex, OpenCode | 2 | 16,666 tok |
| cyanheads/orcid-mcp-server npmjs.com Search and retrieve researcher profiles, works, affiliations, funding, and peer review rec | 6 | Claude Code, Codex, OpenCode | 2 | 16,306 tok |
| alejandro-technology/opencode-mcp opencode-mcp.alejandrotechnology.com An MCP (Model Context Protocol) server that lets Claude/Codex/Cursor drive an OpenCode ins | 6 | Claude Code, Codex, OpenCode | 2 | 4,177 tok |
| systemfsoftware/comment-checker systemfsoftware.com Fast, offline Claude Code hook that flags unnecessary code comments and AI slop via Tree-s | 6 | Claude Code, Codex, OpenCode | 5 | 2,654 tok |
| ilyautov/cordon cordon.aifrontier.tech A deterministic layer between untrusted content and agent actions: it removes the hidden l | 6 | Codex, OpenCode | 1 | 1,428 tok |
| pnmcguire480/cairntir cairntir.com Local-first persistent memory MCP server for Claude Code, Codex, Cursor, Qwen Code, and AI | 6 | Claude Code, Codex, OpenCode | 2 | 6,314 tok |
| hronaut/hronaut hronaut.dev Give your coding agent its own browser. Keep yours. A visible desktop browser for coding a | 6 | Claude Code, Codex, OpenCode | 3 | 3,302 tok |
| dfridkin/clawops clawops.fyi Deploy and operate self-hosted OpenClaw on AWS, GCP, Azure or your own VM, from the comman | 6 | Claude Code, Codex, OpenCode | 11 | 3,864 tok |
| ssheleg/super-ux skills.sshlg.me Define product behavior, trace UX scenarios and keep copy consistent through brand voice, | 6 | Claude Code, Codex, OpenCode | 2 | 2,305 tok |
| ardennguyen/zalo-mcp Zalo MCP Server for zalo-agent-cli | 6 | Claude Code, Codex, OpenCode | 2 | 2,094 tok |
| Iron-Mark/Hackathon-Stellaroid_Earn stellaroid.tech Stellaroid Earn — On-chain credential registry and payment rail on Stellar. Issue, verify, | 6 | Claude Code, Codex, OpenCode | 3 | 1,781 tok |
| kinti/a11y-toolkit a11y.es The accessibility layer for AI coding agents, WCAG 2.2: static and rendered audits (light | 6 | Codex, OpenCode | 1 | 1,019 tok |
| WLAN-Pi/wlanpi-mcp On-device MCP server for the WLAN Pi | 6 | Claude Code, Codex, OpenCode | 2 | 5,590 tok |
| sledmonkey/getflightplan | 6 | Claude Code, Codex, OpenCode | 5 | 2,331 tok |
| nushey/agents-md-generator Mcp server to create agents-md efficiently | 6 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,335 tok |
| Taketo-Yoda/uv-sbom Generate SBOMs for Python projects managed by uv. | 6 | Claude Code, Codex, OpenCode | 20 | 2,891 tok |
| GRACENOBLE/fullstack-template How I skip the repetitive setup, save tokens, save time and focus on the business logic | 6 | Claude Code, Codex, OpenCode | 15 | 3,658 tok |
| namastexlabs/automagik-cli A powerful TypeScript-based CLI chat application for interacting with multi-agent AI syste | 6 | Claude Code, Codex, OpenCode | 14 | 3,783 tok |
| henkaku-center/omise-interface omise.henkaku.org | 6 | Codex, GitHub Copilot, OpenCode | 2 | 110 tok |
| dnsabby/MSITM.6341 Python Class Shared Project Directory | 6 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 61 | 933 tok |
| lesleslie/jinja2-async-environment Provides asynchronous alternatives to Jinja2's standard template environment and loaders | 6 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,668 tok |
| lucaspressi/claudekit-engineer | 6 | Claude Code, Codex, Gemini CLI, OpenCode | 10 | 2,006 tok |
| Monarc-Engineering/fullstack-template Skip the repetitive setup, save tokens, save time and focus on the business logic | 6 | Claude Code, Codex, OpenCode | 15 | 3,658 tok |
| IgorGanapolsky/openclaw-console Native iOS & Android mobile console for OpenClaw agents. Biometric approvals, real-time mo | 6 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 18 | 6,676 tok |
| hydrolix/grafana-datasource-plugin Hydrolix data source for Grafana | 6 | Claude Code, Codex, Gemini CLI, OpenCode | 8 | 93 tok |
| gemyago/apigen HTTP API Layer Generator for the Go (golang) projects | 6 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 1,653 tok |
| adbertram/cli-tools Service-specific Python CLI tools with shared auth, browser automation, runtime profiles, | 6 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 491 tok |
| mrgnhnt96/sip A command-line tool to manage Dart mono-repos. | 5 | Claude Code, Codex, OpenCode | 7 | 2,808 tok |
| VantaInc/vanta-mcp-plugin Official Vanta plugin for Claude Code | 5 | Claude Code, Codex, OpenCode | 1 | 294 tok |
| villagesql/villagesql-skills villagesql.com Agent skills for VillageSQL - gemini-cli-extension; claude-code-plugin | 5 | Codex, OpenCode | 1 | 382 tok |
| Kyure-A/nix-config NixOS configuration | 5 | Claude Code, Codex, OpenCode | 2 | 212 tok |
| HereditaryDog/gaster-code-releases hereditarydog.github.io Gaster Code: public local AI coding assistant with CLI, desktop app, MCP, Skills, Agents, | 5 | Codex, OpenCode | 1 | 1,619 tok |
| cosscom/coss coss.com One API key and one SDK for email, SMS, AI agent inboxes, scheduling, webhooks and more. | 5 | Claude Code, Codex, OpenCode | 2 | 32,545 tok |
| lonestone/lonestone-boilerplate lonestone.github.io Starter kit for full-stack webapps, SaaS and websites with React and NestJS | 5 | Claude Code, Codex, OpenCode | 2 | 572 tok |
| NathanZane/codex-mobile Remote-control Codex from Discord, with mirrored conversations, approvals, queueing, and s | 5 | Codex, OpenCode | 1 | 2,561 tok |
| RonaldBunk/minestom-mcp ronaldbunk.me A stdio MCP server for Minestom, implemented with the Model Context Protocol SDK and TanSt | 5 | Claude Code, Codex, OpenCode | 2 | 379 tok |
| hubvue/skills skillset-by-kim.cckcc-kim.chatgpt.site Kim's skills | 5 | Claude Code, Codex, OpenCode | 2 | 3,599 tok |
| aegntic/cognitive-os aegntic.github.io Cognitive OS v3.0 — Universal AI agent operating system specification. 16-section cognitiv | 5 | Claude Code, Codex, Cursor, Gemini CLI, OpenCode | 4 | 8,074 tok |
| mordor-forge/trident-mcp Unofficial MCP server for the Tripo 3D API (v3): text/image/multiview to 3D, P1/P2 low-pol | 5 | Codex, OpenCode | 1 | 1,258 tok |
| jzjzzzzzzz/IntentForge Intent-preserving deterministic CAD pipeline for editable, validated CadQuery models. | 5 | Codex, OpenCode | 1 | 207 tok |
| NaNMesh/nan-forget Never forget. Long-term memory for any LLM. | 5 | Claude Code, Codex, OpenCode | 9 | 2,972 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 | 1,566 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 | 2,976 tok |