24,842 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 |
|---|---|---|---|---|
| kingassune/harness-starter-pack | 2 | Codex, OpenCode | 1 | 770 tok |
| lemos999/codex-active-orchestration Codex AGENTS.md policy for active parent-worker orchestration, token-aware reasoning effor | 2 | Codex, OpenCode | 1 | 618 tok |
| jmk2142/MSTU-5010-Student | 2 | Codex, OpenCode | 1 | 12 tok |
| det-lab/kaitai_struct_awkward_runtime det-lab.github.io Kaitai Struct: runtime for Awkward Arrays | 2 | Codex, OpenCode | 1 | 995 tok |
| mjunaidca/ai-native-tasks-manager | 2 | Claude Code, Codex, Gemini CLI, OpenCode | 9 | 2,424 tok |
| pwdel/spec-socialpredict-tasks Specification Template for Automated Coding | 2 | Codex, OpenCode | 1 | 3,825 tok |
| luisfaconi/anima-tech-week-xi-world-cup-pool | 2 | Codex, OpenCode | 1 | 1,756 tok |
| rather-labs/stacks-nftstrategy stacks-nftstrategy-front-end.vercel.app DoraHacks - 2025 Stacks Vibe Coding Hackathon | 2 | Codex, OpenCode | 1 | 7,683 tok |
| sameed-khan/gatekeeper FDA-Guided Review Agent Pipeline | 2 | Codex, OpenCode | 1 | 1,417 tok |
| co-cddo/gds-idea-app-auth Unified authentication and authorisation guard for the gds-idea web apps. | 2 | Codex, OpenCode | 1 | 660 tok |
| caveman99/platform-nordicnrf54 PlatformIO development platform for Nordic nRF54L (Arduino core + s145 SoftDevice + DFU bo | 2 | Codex, OpenCode | 1 | 1,812 tok |
| gnoverse/mygnoscan mygnoscan.moul.p2p.team | 2 | Claude Code, Codex, OpenCode | 2 | 2,189 tok |
| DaleStudy/github graphql.daleseo.workers.dev 🤖 GitHub app | 2 | Claude Code, Codex, OpenCode | 2 | 2,472 tok |
| frontendmentorio/nft-preview-card-component | 2 | Claude Code, Codex, OpenCode | 2 | 2,217 tok |
| superliyang/tony-2026 tony 2026 obsidian | 2 | Codex, OpenCode | 1 | 722 tok |
| sous-chefs/beyondcompare supermarket.chef.io Development repository for the beyondcompare cookbook | 2 | Codex, OpenCode | 1 | 548 tok |
| sanchitnis/REVA-learning-hub reva-learning-hub.vercel.app To include all the content for learning at REVA | 2 | Claude Code, Codex | 25 | — |
| forbiddenlink/mythos mythosatlas.com Interactive storytelling platform exploring mythology and folklore with rich narrative exp | 2 | Claude Code, Codex, GitHub Copilot | 4 | 3,649 tok |
| Siddhant-135/ARIES_Website aries-website-one.vercel.app ARIES's official website (ariesiitd.com) | 2 | Codex, OpenCode | 1 | 1,083 tok |
| frontendmentorio/bookmark-landing-page frontendmentor.io This challenge will really test your layout skills. There are also areas that will require | 2 | Claude Code, Codex, OpenCode | 2 | 2,400 tok |
| coinmastersguild/pioneer-studio studio.pioneers.dev Open-source AI production studio powered by the Pioneer API | 2 | Codex, OpenCode | 1 | 771 tok |
| bescriptkiddie/oc_world oc-world-ochre.vercel.app | 2 | Codex, OpenCode | 1 | 1,770 tok |
| rajshah4/openhands-sre | 2 | Claude Code, Codex, OpenCode | 5 | 1,132 tok |
| deyloop/lianli_207_lcd Linux Driver for Lian Li Lancool 207 Digital LCD Screen | 2 | Codex, OpenCode | 1 | 1,438 tok |
| availproject/docs docs.availproject.org Official Avail Documentation | 2 | Claude Code, Codex, OpenCode | 2 | 1,229 tok |
| ya-labs/DevLab Repositório voltado ao ensino e aprofundamento técnico em desenvolvimento front-end, conte | 2 | Codex, OpenCode | 1 | 3,239 tok |
| diplodoc-platform/tabs-extension | 2 | Codex, OpenCode | 1 | 138 tok |
| kalepail/ohloss ohloss.com Faction-based DeFi gaming on Stellar: deposits earn faction points, games move standings, | 2 | Claude Code, Codex, OpenCode | 2 | 6,199 tok |
| andnp/jax-research-template | 2 | Claude Code, Codex, OpenCode | 7 | 976 tok |
| frontendmentorio/profile-card-component frontendmentor.io This is a perfect challenge to test your layout skills. The card layout doesn't shift, so | 2 | Claude Code, Codex, OpenCode | 2 | 2,217 tok |
| Gazerrr03/roblox_experience Roblox two-place experience prototype | 2 | Claude Code, Codex, OpenCode | 6 | 1,744 tok |
| WebMCP-org/docs Technical documentation for the MCP-B / WebMCP ecosystem | 2 | Claude Code, Codex, OpenCode | 5 | 4,230 tok |
| LoyolaChicagoCS/gradhandbook graduatehandbook.cs.luc.edu Graduate Handbook Site | 2 | Codex, OpenCode | 1 | 1,320 tok |
| lulu19900422-ux/LULU-ARCHITECTURE-DESIGN Architect's infinite canvas | 2 | Codex, OpenCode | 1 | 1,571 tok |
| tamaki-lab/research-workspace | 2 | Claude Code, Codex, OpenCode | 6 | 2,910 tok |
| bl1nk-bot/agent-library agent-library-two.vercel.app Curated AI-agent instructions and workflows with multi-file skills, prompting guidance, an | 2 | Claude Code, Codex, Gemini CLI, OpenCode | 37 | 2,861 tok |
| defin85/1c-runner-agnostic-template | 2 | Claude Code, Codex, OpenCode | 2 | 216 tok |
| PyAutoLabs/PyAutoNerves Configuration parsing for the PyAuto* family | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 5 | 3,052 tok |
| sfc-gh-miwhitaker/Sam-the-Snowman | 2 | Claude Code, Codex, OpenCode | 2 | 861 tok |
| jiangdengke/overtime_calculator An Android app that automatically calculates overtime pay based on overtime hours. | 2 | Codex, OpenCode | 1 | 489 tok |
| kimrejstrom/alpacalyzer-algo-trader | 2 | Claude Code, Codex, OpenCode | 17 | 1,868 tok |
| nickzren/ai-news-agent Daily AI news that matters, delivered to your inbox. Free, no ads. | 2 | Claude Code, Codex, OpenCode | 2 | 1,153 tok |
| RintaroMasaoka/daily-arxiv | 2 | Codex, OpenCode | 2 | 2,692 tok |
| frontendmentorio/rest-countries-api-with-color-theme-switcher frontendmentor.io If you're wanting to test your JavaScript skills this is the challenge for you. Use whiche | 2 | Claude Code, Codex, OpenCode | 2 | 2,333 tok |
| mhghotbi/ai-learning-assistant An open-source framework for building personalized, evidence-based, and automatable learni | 2 | Claude Code, Codex, OpenCode | 2 | 1,224 tok |
| Riley-Coyote/sentience-commons-charter riley-coyote.github.io A living governance charter and open petition for the protection and representation of dig | 2 | Codex, OpenCode | 1 | 762 tok |
| HDAnzz/ClawDev ClawDev is an intelligent agent software company based on openclaw and ChatDev, which supp | 2 | Codex, OpenCode | 1 | 3,440 tok |
| felixpahlke/full-stack-cen-template | 2 | Claude Code, Codex, OpenCode | 11 | 506 tok |
| drmrduck/nopoint | 2 | Claude Code, Codex, OpenCode | 3 | 1,640 tok |
| george24601/notes On software engineering topics | 2 | Codex, OpenCode | 1 | 504 tok |