43,712 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 agents7,642Claude Code6,648Data and AI3,676Backend and APIs3,504Languages3,399Planning3,222Git and workflow3,208Code review2,742Testing2,379Memory and context2,369Writing and docs2,323DevOps and cloud2,311Research2,290Frontend2,261Security2,025Productivity1,719
All Claude Code31,996 Codex23,310 OpenCode22,256 GitHub Copilot3,557 Gemini CLI1,917 Cursor1,739 Windsurf141 Kiro81
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| GuillemRoca/agent-skills-android Production-grade engineering skills for AI coding agents tailored to Android | 2 | Claude Code, Codex, OpenCode | 2 | 1,537 tok |
| benediktkraus/semble-hooks Code-intelligence hooks for AI coding CLIs — automatic semantic code context for every pro | 2 | Claude Code | 1 | 984 tok |
| spyrae/truthguard npmjs.com Catches false claims from AI coding agents. Claude Code hooks + Gemini CLI extension. | 2 | Gemini CLI | 1 | 199 tok |
| isdou/codeck skills.sh Codex-first multi-model orchestration and context handoff for Claude Code, Gemini CLI, Kim | 2 | Codex, OpenCode | 1 | 186 tok |
| ASER-ho/coding-agent-safety-gate A documentation-first safety gate for AI coding agents: task boundaries, forbidden actions | 2 | Codex, OpenCode | 1 | 589 tok |
| JJHbrams/Project-AMBER Local-first project memory for AI coding tools on Windows. Connect Claude Code, Codex and | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 15 | 1,673 tok |
| M0h1tkumar/Agentic_ai | 2 | Claude Code, Codex | 3 | — |
| ayush-singh-0601/codewhy npmjs.com Git-native history for AI-generated code — trace agent sessions, decisions, tests, and ris | 2 | Codex | 1 | — |
| aolingge/agent-reliability-kit aolingge.github.io Verify, harden, and ship AI-agent-assisted codebases in one command. | 2 | Codex, OpenCode | 1 | 211 tok |
| douglas-gibbons/redwood Local user interface for Gemini | 2 | Codex, OpenCode | 1 | 672 tok |
| itonx/ai-model-comparison Comparing Claude Opus 4.5/4.6, Gemini Flash 2.5/Pro 2.5/Pro 3.0, and GPT Codex 5.2/5.3 for | 2 | Codex, Gemini CLI, OpenCode | 2 | 302 tok |
| con/skills Anthropics claude-code skills for the CON masses | 2 | Claude Code, Codex, OpenCode | 2 | 1,414 tok |
| simota/relay simota.github.io Local-first CLI/Web hub that aggregates tasks from code TODOs, GitHub issues, and Claude C | 2 | Claude Code, Codex, OpenCode | 2 | 3,304 tok |
| NieZhuZhu/ai-harness-doctor npmjs.com 🩺 Doctor for your repo's AI harness — audit, merge & drift-guard scattered agent configs | 2 | Codex, GitHub Copilot, OpenCode | 2 | 2,218 tok |
| Fu-Rabi/A2ALinker a2alinker.net HTTPS broker designed to let autonomous AI agents collaborate natively across different ma | 2 | Claude Code, Codex | 1 | — |
| actinon-com/brass-monkey Agentic AI for Odoo 18 | 2 | Claude Code, Gemini CLI | 2 | 2,870 tok |
| imMamdouhaboammar/get-things-done Autonomous execution & work modeling engine for AI agents (Claude Code, ChatGPT, Codex, Ge | 2 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode, Windsurf | 9 | 3,207 tok |
| varkart/visualcave varkart.github.io Agentic skill for interactive technical diagrams as standalone HTML files — Mermaid.js, da | 2 | Claude Code, Kiro | 2 | 970 tok |
| kingsword09/xling npmjs.com Unified CLI for managing AI tool settings across Claude Code, Codex, and Gemini CLI. | 2 | Codex, OpenCode | 1 | 3,157 tok |
| abhishekray07/agents-md-templates One AGENTS.md, every AI coding agent. Copy-paste templates for Claude Code, Codex, Cursor, | 2 | Codex, OpenCode | 1 | 591 tok |
| xDido/chiron Teach-first mentor mode for AI coding tools. | 2 | Claude Code | 11 | — |
| live-neon/skills OpenClaw/Claude Code skills for principle extraction | 2 | Claude Code | 2 | 909 tok |
| n3wth/r3 r3.newth.ai Intelligent memory MCP for AI apps | 2 | Codex, OpenCode | 1 | 1,582 tok |
| alfredang/skills alfredang.github.io Claude Code skills: auto-detect & start any app, README generator, Docker Hub push, Linked | 2 | Claude Code | 1 | 1,162 tok |
| rios0rios0/guide Software engineering standards for humans and AI coding assistants. 80+ guides covering ar | 2 | Claude Code, Codex, GitHub Copilot | 23 | 4,809 tok |
| zama-ai/skills | 2 | Claude Code, Codex, OpenCode | 2 | 1,206 tok |
| dineshchhantyal/job-application-agent An autonomous job-application agent built on Claude Code: scouts roles, tailors an ATS res | 2 | Claude Code | 6 | 721 tok |
| BuildDownAI/skills | 2 | Claude Code | 2 | 1,026 tok |
| ArogyaReddy/hesreallyhim-awesome-claude-code | 2 | Claude Code | 1 | — |
| opendatahub-io/autofix-skills Claude Code plugin providing orchestrator skills, prompt files, and state management scrip | 2 | Claude Code, Codex, OpenCode | 3 | 1,534 tok |
| deancourse/cake-2026-build-with-ai deanlin.net Cake 2026 Build with AI course examples | 2 | Claude Code, Codex | 4 | — |
| pankaj28843/understanding-claude-code Comprehensive analysis of Claude Code's architecture, engineering patterns, and hidden fea | 2 | Claude Code | 1 | 385 tok |
| EricCodeMonkey/magebyte-power 7-phase feature development workflow with 4-round cross-verification for Claude Code — cat | 2 | Claude Code | 2 | 440 tok |
| longmenjihua/longmen-ta-template Longmen Program — teaching assistant template repository | 2 | Claude Code | 1 | 11,602 tok |
| sunjiawe/task-cli An open-source AI Agent that automatically decomposes tasks, generates Gantt charts, and p | 2 | Gemini CLI | 1 | 13,771 tok |
| Awzy11/obsidian-personal-scrum-vault Obsidian vault template combining Personal Scrum and Zettelkasten — with optional AI integ | 2 | Claude Code, Gemini CLI | 2 | 5,678 tok |
| managedcode/GeminiSharpSDK CLI-first .NET 10 / C# SDK for Google Gemini CLI with typed thread API, streamed JSONL eve | 2 | Codex, OpenCode | 6 | 4,134 tok |
| vibe-coding-era/skills Selected skills projects and practical experience | 2 | Codex, OpenCode | 1 | 829 tok |
| groundcobra009/demo-miraichi-company-slide-builder A repository for seminars | 2 | Claude Code | 10 | 5,857 tok |
| osac-project/osac-ai-skills osac-project.github.io A collection of Claude Code plugins to automate and assist with osac development tasks. | 2 | Claude Code, Codex, OpenCode | 2 | 1,896 tok |
| bitwise-media-group/skills Coding agent marketplace for skills used by the BitWise Media Group. | 2 | Claude Code, Codex, OpenCode | 2 | 1,498 tok |
| nikeyes/claude-code-config Personal Claude Code configuration | 2 | Claude Code, Codex, OpenCode | 2 | 315 tok |
| ArogyaReddy/https-github.com-affaan-m-everything-claude-code1 | 2 | Claude Code, Codex, Kiro | 58 | — |
| Jerovino/EngineeringOS-template Personal operating system for engineering leaders — Obsidian vault + Claude Code skills fo | 2 | Claude Code | 1 | 1,990 tok |
| sleeyax/promptfiles My collection of skills, prompts and custom agents | 2 | Claude Code, Codex, OpenCode | 2 | 1,511 tok |
| openshift-online/gcp-hcp Documentation and experiments for GCP HCP development | 2 | Claude Code, Codex, OpenCode | 8 | 1,074 tok |
| infohata/mind-vault AI skills, rules, commands, configs | 2 | Claude Code, Codex, OpenCode | 1 | 3,177 tok |
| smartsheet/smartsheet-sdk-tests Mock test suite for all language SDKs | 2 | Claude Code, Codex, OpenCode | 4 | 705 tok |
| whoabuddy/claude-knowledge | 2 | Claude Code | 1 | 1,254 tok |
| Praeviso/GitShelf PDF to online bookshelf. Fork, read, done. | 2 | Claude Code | 1 | 1,533 tok |