3,700 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 agents8,442Claude Code6,875Data and AI3,584Git and workflow3,574Backend and APIs3,550Languages3,468Planning3,315Code review2,876Testing2,653DevOps and cloud2,462Writing and docs2,461Memory and context2,373Research2,315Frontend2,301Security2,167Project management1,944
All Claude Code32,436 Codex24,692 OpenCode23,614 GitHub Copilot3,700 Gemini CLI2,016 Cursor1,769 Windsurf202 Kiro113
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| CoderSufiyan/plainspeak npmjs.com Make AI agents write like a person, not a bot. | 2 | Codex, GitHub Copilot, OpenCode | 2 | 2,146 tok |
| michaeldeanrobinson/opine-coding | 2 | GitHub Copilot | 1 | 111 tok |
| dalonsogomez/braid-kg Proyecto que analiza de manera completa, extensa, detallada y exhaustiva cualquier directo | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 9,075 tok |
| BrunoBNascimento/devos | 2 | Claude Code, GitHub Copilot, Cursor | 11 | 518 tok |
| Michael-Obele/docshark dsharkd.svelte-apps.me DocShark is a powerful MCP server buit with TMCP, designed to scrape, index, and search an | 2 | Codex, GitHub Copilot, OpenCode | 2 | 3,818 tok |
| flittpayments/flitt-integration-skill Official local AI assistant skill for integrating Flitt payments using Codex, Copilot, Cla | 2 | GitHub Copilot, Gemini CLI | 2 | 424 tok |
| betzaydarobie-source/setup-3xui-skill Reusable setup-3xui AI-agent workflow for installing 3X-UI panels and managing VLESS Reali | 2 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 5 | 3,689 tok |
| hakeemrabiuDFW/Tanda-Workforce-MCP-Server | 2 | Claude Code, GitHub Copilot | 3 | — |
| noot-app/openfoodfacts-mcp-server MCP Server for OpenFoodFacts using the Parquet product database | 2 | GitHub Copilot | 1 | 435 tok |
| akhilthomas236/jenkins_mcp_server | 2 | GitHub Copilot | 1 | 117 tok |
| HosakaKeigo/mcp-server-spreadsheet MCP server for Google Sheet (spreadsheet) with Application Default Credentials Auth. | 2 | GitHub Copilot | 1 | 40 tok |
| sharpninja/McpServerManager sharpninja.github.io Avalonia desktop app for tracking and inspecting request/session logs with AI assistant | 2 | Codex, GitHub Copilot, OpenCode | 2 | 1,350 tok |
| israel-salgado/dt-mcp-server | 2 | Claude Code, Codex, GitHub Copilot | 19 | 7,851 tok |
| gabrielsribas/topdesk-mcp-server | 2 | GitHub Copilot | 1 | 4,417 tok |
| chefallan/awesome-context-engine chefallan.github.io Portable repo memory for AI coding agents. Keeps context current across Copilot, Claude, C | 2 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 1,001 tok |
| felipeblassioli/agent-skills skills.sh My personal official collection of agent skills, react ones forked from vercel | 2 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 11 | 4,277 tok |
| cboone/agent-harness-plugins Claude, Codex, + OpenCode commands, hooks, and skills | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 27 | 17,367 tok |
| WAJDA9/flutter-agent-skills A collection of highly optimized, context-efficient GitHub Copilot agent skills tailored f | 2 | GitHub Copilot | 1 | 332 tok |
| green-code-initiative/ai-green-skills Green skills for driving IA agents | 2 | GitHub Copilot | 1 | 3,713 tok |
| biggora/claude-plugins-registry CLI marketplace for discovering, installing, and managing Claude Code plugins. | 2 | Codex, GitHub Copilot, OpenCode | 2 | 799 tok |
| Nlai741533/EFC-Plugin Fact-check AI-generated research reports — CLI, Claude Code plugin, GitHub Action | 2 | GitHub Copilot | 1 | 414 tok |
| ukinora/ulanzi-studio-plugin-skill Claude Code skill for building Ulanzi Studio plugins (D200H/D200/D200X) | 2 | GitHub Copilot, Cursor | 2 | 9,234 tok |
| Kenmege/codex-claude-companion npmjs.com Durable Codex-to-Claude delegation with tmux ownership, recovery, collaboration, independe | 2 | GitHub Copilot | 1 | 186 tok |
| observability-oss/progress-observability-plugin Six Claude Code / Copilot skills for the Progress Observability Platform: trace triage, co | 2 | GitHub Copilot | 1 | 10,728 tok |
| vhcg77/github-copilot-instructions Advanced hierarchical instruction system for GitHub Copilot - 100% validated for Data Scie | 2 | GitHub Copilot | 1 | 4,815 tok |
| ThiagoGuislotti/copilot-instructions Curated collection of GitHub Copilot instructions, templates, and best practices for consi | 2 | Claude Code, GitHub Copilot | 50 | 67,775 tok |
| NKFahrni/github-copilot-instructions these are my custom github copilot instructions i use for my Development workflow with Git | 2 | GitHub Copilot | 6 | 5,568 tok |
| navikt/hovmester Copilot customization files (agents, skills, instructions) distributed via reusable GitHub | 2 | Claude Code, Codex, GitHub Copilot | 49 | 6,842 tok |
| suuus/ape-context Enterprise context setup wizard for GitHub Copilot — scans your project, discovers MCP ser | 2 | Claude Code, Codex, GitHub Copilot | 18 | 1,186 tok |
| jfjordanfarr/copilot-self-improvement A radically simple VS Code extension and MCP tool which provides Github Copilot with the r | 2 | GitHub Copilot | 1 | 1,628 tok |
| nahtheking/semantic-model-mcp | 2 | GitHub Copilot | 1 | 127 tok |
| 108yen/task-orchestrator-mcp An MCP (Model Context Protocol) server for task orchestration. | 2 | GitHub Copilot | 1 | 1,126 tok |
| joelmnz/mcp-markdown-manager Manage a Markdown knowledge library with AI MCP API | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 5 | 1,676 tok |
| karnagge/mcpcand | 2 | GitHub Copilot | 1 | 1,216 tok |
| tiemenrtuinstra/baarn-raadsinformatie MCP Server voor politieke documenten gemeente Baarn via Notubiz API | 2 | GitHub Copilot | 1 | 779 tok |
| lenvolk/mcp-lifx | 2 | Claude Code, Codex, GitHub Copilot | 3 | 833 tok |
| javiarmesto/Lab3_1_MCP_BusinessCentral Educational Python MCP lab for Business Central: STDIO/HTTP variants, Entra application co | 2 | GitHub Copilot | 1 | 357 tok |
| axelspringer/snyk-mcp-rest MCP for Snyk REST API | 2 | GitHub Copilot | 1 | 1,859 tok |
| kieutrongthien/coding-mcp coding-mcp.omaicode.com Coding MCP is a multi-project MCP server for remote coding workflows. It lets agents work | 2 | Claude Code, Codex, GitHub Copilot | 4 | 320 tok |
| gusztavvargadr/foaas-mcp foaas.io MCP server to expose the functionality of FOAAS (Fuck Off As A Service) to AI clients | 2 | GitHub Copilot | 1 | 2,118 tok |
| theobjectivedad/powersearch-mcp PowerSearch MCP helps AI agents search and retrieve content from the public web with fewer | 2 | Codex, GitHub Copilot, OpenCode | 2 | 1,562 tok |
| surajfale/git-mcp-server | 2 | GitHub Copilot | 1 | 1,125 tok |
| l0kifs/web-explorer-mcp | 2 | GitHub Copilot | 1 | 1,842 tok |
| mnooseman/mcsrc-mcp | 2 | Claude Code, GitHub Copilot | 2 | 1,760 tok |
| dave-palt/mcp-dynamics-365 | 2 | GitHub Copilot | 1 | 2,528 tok |
| getlien/lien lien.dev Local-first semantic code search for AI coding assistants. Indexes your codebase with loca | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 9 | 7,645 tok |
| asvarnon/mcp-homelab | 2 | Claude Code, GitHub Copilot | 7 | 1,586 tok |
| l4b4r4b4b4/real-estate-sustainability-mcp MCP server for analyzing building sustainability metrics through Excel, PDF, and standardi | 2 | GitHub Copilot | 1 | 709 tok |
| zk-armor/mcp-sphinx-docs MCP server to convert Sphinx documentation to LLM-optimized Markdown | 2 | GitHub Copilot | 1 | 340 tok |
| qd313/decky-plugin-studio VS Code / Cursor extension for Decky plugin development — live QAM preview, MCP tools for | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 3,050 tok |