3,542 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 agents7,510Claude Code6,601Data and AI3,691Backend and APIs3,489Languages3,402Planning3,208Git and workflow3,142Code review2,734Memory and context2,361Testing2,349DevOps and cloud2,296Research2,292Writing and docs2,291Frontend2,248Security2,004Productivity1,708
All Claude Code32,107 Codex23,261 OpenCode22,036 GitHub Copilot3,542 Gemini CLI1,912 Cursor1,737 Windsurf119 Kiro77
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| microsoft/Build26-BRK241-from-prototype-to-production-build-and-run-agents-at-scale build.microsoft.com Engineering patterns for taking AI agents to production — deployment, tools, memory, long- | 10 | Codex, GitHub Copilot, OpenCode | 2 | 1,029 tok |
| toolate28/SpiralSafe spiralsafe.pages.dev SpiralSafe is self-maintaining, inherently coherent reposystem | Documentation, code, and | 10 | Claude Code, GitHub Copilot | 3 | 2,489 tok |
| microsoft/Build26-BRK240-build-context-aware-agents-from-data-to-decisions build.microsoft.com Resources for designing agents with Foundry IQ, Fabric IQ, and Work IQ — search across org | 10 | GitHub Copilot | 1 | 578 tok |
| benchflow-ai/agents Minimal coding agents, easy to play with (opencode TUI) and easy to benchmark (ACP on Benc | 10 | GitHub Copilot | 1 | 378 tok |
| sign-protocol/sign-tools Reference implementations and utilities for SIGN (Sigil Intelligence Graph Notation) — sig | 10 | Codex, GitHub Copilot, OpenCode | 2 | 1,235 tok |
| the-missing-pink/ai-repository-security-baseline A baseline configuration and guidelines for securing source code repositories, covering br | 10 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 7,110 tok |
| z-shell/.github ✨ Z-Shell GitHub Organization | 10 | Claude Code, Codex, GitHub Copilot, OpenCode | 26 | 19,625 tok |
| CGSOG-JumpStarts/JumpStart-AutoNav Design thinking agentic engineering framework | 10 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 56 | 8,275 tok |
| PyAutoLabs/PyAutoArray Array and grid manipulation for the PyAuto ecosystem | 10 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 1,829 tok |
| hutchic/.cursor | 10 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 33 | 4,163 tok |
| PSModule/Template-PSModule psmodule.io Template for a PowerShell module repo. | 10 | Codex, GitHub Copilot, OpenCode | 2 | 91 tok |
| woliveiras/geremmyas Agents, skills, instructions, hooks, prompts, and a pack-based CLI for coding assistants | 10 | Codex, GitHub Copilot, OpenCode | 2 | 15 tok |
| boscoh/pyball python opengl protein viewer | 10 | Codex, GitHub Copilot, OpenCode | 2 | 2,162 tok |
| Sartori-RIA/ubuteco_api | 10 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,557 tok |
| danmaps/arcgispro_cli | 10 | GitHub Copilot | 1 | 1,039 tok |
| ForumHFR/redface2 forumhfr.github.io Redface 2 — client Android moderne pour le forum Hardware.fr (Kotlin, Jetpack Compose, Mat | 10 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 18 | 5,919 tok |
| Luligu/matterbridge-example-dynamic-platform Matterbridge dynamic platform plugin example | 10 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 1,410 tok |
| uhop/console-toolkit Toolkit to produce a fancy console output (boxes, tables, charts, colors). | 10 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,034 tok |
| mgifford/contrast-plus mgifford.github.io A color contrast checker that supports WCAG 2, APCA & Focus Colors | 10 | Codex, GitHub Copilot, OpenCode | 2 | 2,083 tok |
| ashermahonin/agentic-skills | 10 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 1,342 tok |
| adobe/spacecat-api-service Edge Delivery services experience success as a service automation: SpaceCat + Star Catalog | 10 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 9,712 tok |
| adhocteam/cloud-gov-instructions adhocteam.github.io A reusable set of instruction files for AI coding assistants (like GitHub Copilot) that en | 10 | Claude Code, Codex, GitHub Copilot, OpenCode | 9 | 21,023 tok |
| lgqyhm2010/loop-goal Discipline skill for long-running agent tasks — recurring loops and run-until-done goals: | 10 | Codex, GitHub Copilot, OpenCode | 2 | 620 tok |
| coherentforge/CambiOS coherentforge.com Zero-trust, capability-based Rust microkernel targeting formal verification. Tri-arch (x86 | 10 | Claude Code, GitHub Copilot | 3 | 17,654 tok |
| BuiltByOctane/allocat allocat.xyz Allocat is a personal finance bugeting application | 10 | Claude Code, GitHub Copilot | 3 | 7,191 tok |
| matsuni-kk/agent_template_public Agent Template Framework for Domain-Specific Agent Generation - Public Version | 10 | Claude Code, Codex, GitHub Copilot, OpenCode | 7 | 4,002 tok |
| briangmilnes/APAS-VERUS Proving 'Algorithms Parallel and Sequential' in Rust (APAS-AI) using Verus. | 10 | Claude Code, GitHub Copilot | 2 | 50,605 tok |
| fastcode555/flutter_tailwind A project to expore the tailwind just like the csstailwind | 10 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 3,175 tok |
| xiongchenyu6/dotfiles My own settings for Linux and Mac | 10 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,599 tok |
| mjochum64/mcp-solr-search MCP-Server for Apache Solr | 10 | Claude Code, GitHub Copilot | 2 | 1,943 tok |
| ilyaev/mcp-chat-ui MCP Server with Chat UI | 10 | GitHub Copilot | 1 | 1,131 tok |
| scadam/ess-mcp Employee Self Service MCP Servers and Apps | 10 | GitHub Copilot | 1 | 9,013 tok |
| premex-ab/phone-mcp | 10 | Claude Code, GitHub Copilot | 2 | 5,546 tok |
| BrickDesignerNL/github-copilot-gpt-code-improver Custom Instruction for GitHub CoPilot to improve the output quality of the default GPT-mod | 10 | GitHub Copilot | 1 | 1,329 tok |
| tosin2013/documcp documcp.dev DocuMCP is an intelligent Model Context Protocol (MCP) server that revolutionizes document | 10 | Claude Code, GitHub Copilot | 6 | 1,894 tok |
| a-25/ios-mcp-code-quality-server This server enables AI assistants to run Xcode tests, perform linter analysis, and provide | 10 | GitHub Copilot | 1 | 1,476 tok |
| alexsmirnov/obsidian-second-brain-mcp | 10 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 286 tok |
| CometWorks/skills Skill library for Space Engineers plugin, mod and in-game script development. Usable with | 10 | Codex, GitHub Copilot, OpenCode | 2 | 218 tok |
| btseee/clean-code-skills Clean Coding and Clean Archictecture skills for Agents | 10 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 5 | 7,394 tok |
| rshade/finfocus rshade.github.io FinOps CLI for Pulumi — projected costs, actual spend tracking, budget enforcement, and co | 10 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 40 | 15,407 tok |
| benjisho/windows-mtr Windows‑native clone of Linux mtr! It's a cross‑platform Rust CLI that delivers ICMP/TCP/U | 10 | Codex, GitHub Copilot, OpenCode | 4 | 1,281 tok |
| dynatrace-oss/dynatrace-snowflake-observability-agent A tool that streams selected Snowflake telemetry to the Dynatrace API, enabling enhanced d | 10 | Claude Code, GitHub Copilot | 2 | 4,679 tok |
| markconroy/markie This is a repo for my personal website, built on Drupal 8 and Patternlab. | 10 | Codex, GitHub Copilot, OpenCode | 2 | 10,108 tok |
| yehezkieldio/firefly npmjs.com Automation release management CLI for semantic versioning, changelog generation, and GitHu | 10 | Codex, GitHub Copilot, OpenCode | 2 | 834 tok |
| FleetAdmiralJakob/chat-io chat-io.roessner.tech Post Quantum Secured Messaging PWA | 10 | GitHub Copilot, Gemini CLI | 3 | 15,945 tok |
| zfy465914233/scholar-agent Knowledge agent for LLMs — online research + local accumulation, gets smarter over time. M | 9 | GitHub Copilot | 1 | 528 tok |
| Alberto-Codes/docvet alberto-codes.github.io Comprehensive docstring quality vetting for Python projects | 9 | Claude Code, Codex, GitHub Copilot, OpenCode | 65 | 3,490 tok |
| dryvist/ai-assistant-instructions A comprehensive, vendor-agnostic framework for consistent AI-assisted development workflow | 9 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 1,095 tok |
| rynald0cst0ltziam/Warden-AI warden-io.vercel.app The structurally-verified context layer for AI coding agents. Cut 50-90% of your agent's t | 9 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 7 | 22,508 tok |
| ukorvl/web-of-flaws A structured library of web security flaws for humans and coding agents with vulnerable ex | 9 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 766 tok |