45,053 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 agents8,576Claude Code6,909Git and workflow3,638Data and AI3,577Backend and APIs3,561Languages3,499Planning3,322Code review2,907Testing2,704DevOps and cloud2,498Writing and docs2,488Memory and context2,373Research2,320Frontend2,317Security2,182Project management1,989
All Claude Code32,552 Codex24,920 OpenCode23,840 GitHub Copilot3,723 Gemini CLI2,039 Cursor1,771 Windsurf202 Kiro117
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| denceee/march-7th-skill Agent Skill - March 7th Role-Play Skill | 3 | Cursor | 1 | 26 tok |
| r13v/pi-feature-dev Skills | 3 | Codex | 1 | — |
| davidlastrucci/trysil-ai-skills LLM skills for "Trysil - Delphi ORM": ORM, JSON and HTTP, for every major | 3 | GitHub Copilot | 1 | 29,462 tok |
| velesnitski/php-agents-boilerplate Multi-agent system for Claude Code – PHP/Laravel backend team with router, backend dev, DB | 3 | Claude Code | 17 | 896 tok |
| zhpeng24/devkit Developer toolkit — cross-platform coding skills for AI agents | 3 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 503 tok |
| eparodi/deepcut-skills Useful skills to use with deepseek and Zed editor. | 3 | Codex, OpenCode | 1 | 13,616 tok |
| Adelphopoet/trino-best-practices-skill | 3 | Codex, OpenCode | 1 | 284 tok |
| singlegrain-marketing/marketing-ai-playbooks Battle-tested marketing AI playbooks from the agency behind Uber, Amazon, Salesforce. 7 sk | 3 | Claude Code | 8 | 348 tok |
| suyancc/gpt-upi-tool | 3 | Claude Code, Codex, Gemini CLI, OpenCode | 16 | 5,357 tok |
| konflux-ci/mintmaker-renovate-image A repo useful to host and build the mintmaker container image | 3 | Codex, OpenCode | 1 | 347 tok |
| base/ui chain.base.org | 3 | Claude Code, Codex, OpenCode | 5 | 2,564 tok |
| openshift/ols Cross-repo workspace for OpenShift Lightspeed — shared specs, routing, and AI conventions | 3 | Claude Code, Codex, OpenCode | 9 | 1,030 tok |
| x-bizarre/amy-threads-bot Amy — a Threads bot for autoposting, replying to comments, and outreach with approval via | 3 | Codex, OpenCode | 1 | 3,371 tok |
| ThatOpen/platform_services | 3 | Claude Code | 1 | 1,625 tok |
| raydium-io/raydium-docs-v1 docs.raydium.io Raydium Documentation | 3 | Codex, OpenCode | 1 | 1,143 tok |
| neura-spheres/Ventus Ventus is a focused desktop browser with AI built in | 3 | Claude Code, Codex, OpenCode | 2 | 6,296 tok |
| Gopartner/realme-c53-unlock-root Bootloader unlock (CVE-2022-38694) & root guide for Realme C53 / RMX3760 (Unisoc T612) | 3 | Codex, OpenCode | 1 | 7,338 tok |
| openshift-kni/rds-analyzer | 3 | Claude Code, Codex, OpenCode | 2 | 8,155 tok |
| VoidX3D/RU_Club_Website ruclubmotherland.vercel.app Official website for Motherland RU Club — a student environmental squad from Pokhara, Nepa | 3 | Codex, OpenCode | 2 | 3,856 tok |
| k1wi777/my-harness-SDD A custom harness for the professional use of tools and AI agents, based on a spec-driven d | 3 | Claude Code, Codex, OpenCode | 8 | 1,780 tok |
| CBNU-TeamH/RMF-Block Re-arrangeable Markdown Fabric block based note-taking app | 3 | Claude Code, Codex, OpenCode | 3 | 2,772 tok |
| Mreaggle/JumpstyleUnitedNations jumpstyle.com.br Volunteered open-initiative projects to help on Jumpstyle Community decentralized maintena | 3 | Codex, OpenCode | 1 | 898 tok |
| kokodak/hanji kokodak.github.io Hanji 韓紙, a super lightweight Markdown editor. | 3 | Claude Code, Codex, OpenCode | 2 | 963 tok |
| pglevy/sailwind pglevy.github.io A React component library for vibe coding that speaks Appian SAIL | 3 | Claude Code, Codex, OpenCode | 2 | 2,821 tok |
| richardthe3rd/cambridge-beer-festival-app A Flutter app for browsing beers, ciders, meads, and more at the Cambridge Beer Festival | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 27 | 10,167 tok |
| Stones2Stars/S2S A continuation of Caveman2Cosmos | 3 | Claude Code, Codex, OpenCode | 8 | 35,531 tok |
| pajew-ski/temet-nosce pajew.ski A self-explaining knowledge graph. No embeddings, no vector DB. Just Markdown, an index, a | 3 | Codex, OpenCode | 1 | 6,269 tok |
| ianandersonlol/HiveTransition | 3 | Claude Code, Codex, OpenCode | 2 | 2,663 tok |
| paufortiana/obsidian-assistant-adk An intelligent, multi-agent system built with Google's ADK to manage your Obsidian vault. | 3 | Codex, OpenCode | 1 | 679 tok |
| tembo/docs | 3 | Codex, OpenCode | 1 | 1,052 tok |
| aaronvanston/thinking-vault-template Sanitized, shareable template for an Obsidian/Markdown thinking vault — structure, convent | 3 | Claude Code, Codex, OpenCode | 2 | 154 tok |
| ruslano69/funcfinder - Multi-language function boundary detection - Support for Go, C, C++, C#, Java, D - 95%+ | 3 | Codex, OpenCode | 1 | 4,461 tok |
| ai-integr8tor/agent0ai-dox | 3 | Codex, OpenCode | 1 | 820 tok |
| SaqlainXoas/llm-wiki-second-brain A minimal LLM Wiki template for building a Markdown second brain with Codex, or Claude Cod | 3 | Claude Code, Codex, OpenCode | 2 | 727 tok |
| jonanderson10/enhanced-opencode-prompt-stack A provider-agnostic replacement for OpenCode's built-in system prompts with best practices | 3 | Codex, OpenCode | 1 | 576 tok |
| balsm-health/Balsm-AI Balsm AI — AI plugins, agents, and skills for healthcare workflows | 3 | Codex, OpenCode | 1 | 4,058 tok |
| romelllo/mipt-python-2026 | 3 | Claude Code, Codex, OpenCode | 2 | 1,984 tok |
| aaoa-dev/Sleak | 3 | Codex, OpenCode | 1 | 399 tok |
| datarobot-oss/datarobot-agent-tester Generate, test, and improve AGENTS.md files and AI coding skills via the DataRobot LLM Gat | 3 | Codex, OpenCode | 1 | 691 tok |
| cuongdev/indie-app-shipping Solo/indie playbook for shipping small iOS/macOS & Android apps — an AI agent skill pack f | 3 | Codex, OpenCode | 1 | 1,103 tok |
| Dhananjay625/dev-workflow Plan-first workflow for AI coding agents: cross-session memory via a project changelog, se | 3 | Codex, OpenCode | 1 | 2,408 tok |
| fco3lho/unlazier-ai OpenCode and Claude Code rules to eliminate lazy coding, behavioral principles, code quali | 3 | Claude Code, Codex, OpenCode | 2 | 1,425 tok |
| jn12-29/personal-agent-kit Branch-based profiles for personal AI coding agent instructions, skills, and configuration | 3 | Codex, OpenCode | 1 | 524 tok |
| dradoaica/cogov-a-sdlc Co-Governed Agentic SDLC (Software Development Life Cycle) | 3 | Claude Code, Codex, GitHub Copilot, Gemini CLI, Kiro, OpenCode, Windsurf | 14 | 368 tok |
| plasma-ai/dev Plasma development environments. | 3 | Claude Code, Codex, OpenCode | 2 | 6,120 tok |
| luabagg/agent-skills Collection of skills, tools and workflows | 3 | Claude Code, Codex, OpenCode | 2 | 323 tok |
| Eljaja/Harness-engineering | 3 | Codex, OpenCode | 1 | 502 tok |
| KrystianMarek/ai-assisted-development | 3 | Claude Code, Codex, OpenCode | 5 | 6,164 tok |
| Proxyfan/Proxyfan HTTP debugging proxy for inspecting, capturing, and modifying network traffic in real time | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 39 | 19,008 tok |
| duyet/kb the shared brain | 3 | Claude Code, Codex, OpenCode | 2 | 3,542 tok |