24,815 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 agents8,505Claude Code6,886Git and workflow3,611Data and AI3,580Backend and APIs3,556Languages3,487Planning3,327Code review2,899Testing2,686Writing and docs2,480DevOps and cloud2,479Memory and context2,375Research2,323Frontend2,308Security2,172Project management1,965
All Claude Code32,517 Codex24,815 OpenCode23,733 GitHub Copilot3,719 Gemini CLI2,034 Cursor1,770 Windsurf202 Kiro114
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| denfry/codebase-index Local code map for AI coding agents: find, trace, and predict change impact with file:line | 13 | Claude Code, Codex, OpenCode | 4 | 677 tok |
| BluesPrince/thiri-mcp mcp.thiri.ai Deterministic music-theory MCP server & API — chord analysis, Roman-numeral analysis, voic | 13 | Claude Code, Codex, OpenCode | 2 | 181 tok |
| suryast/indonesia-civic-stack 🇮🇩 Production-ready Python SDK + MCP server for 14 Indonesian government data sources — | 13 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 4 | 3,032 tok |
| vanterx/mssql-performance-skills SQL Server performance tuning skills for LLMs — 829 checks across 26 skills covering T-SQL | 13 | Claude Code, Codex, OpenCode | 6 | 15,260 tok |
| rvdbreemen/adr-kit Architecture decisions your AI coding agents actually follow. Ranked ADR retrieval and con | 13 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,135 tok |
| DanielHou315/overleaf-mcp-rt npmjs.com Real-time MCP server + agent plugin for Overleaf — self-hosted Community Edition / Server | 13 | Claude Code, Codex, OpenCode | 2 | 3,059 tok |
| evoelsewhere/evoflux evoelsewhere.asia Evoflux is an open-source, local-first workspace where AI agents build software, conduct d | 13 | Codex, OpenCode | 1 | 1,459 tok |
| kezd088/100x-skill-tiktok TikTok/UGC agent skill | 13 | Claude Code, Codex, OpenCode | 2 | 2,489 tok |
| AutoConference/AutoConference-skill AutoConference is an Open-sourced AI-agents platform that simulates an openreview-style au | 13 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 2,419 tok |
| addyosmani/rust-browser Robin - build a web browser engine from scratch in Rust | 13 | Claude Code, Codex, OpenCode | 2 | 1,666 tok |
| tghastings/open-swe-book Free Software Engineering Book providing principles and best practices of SWE in a world o | 13 | Claude Code, Codex, OpenCode | 2 | 2,244 tok |
| ryanlewis/exeslim Minimal exe.dev base image for deployment targets — systemd and full platform wiring, with | 13 | Codex, OpenCode | 1 | 288 tok |
| ssheleg/sshlg-skills skills.sshlg.me Install and update agent skill packs for UX, delivery, design, integrations and verificati | 13 | Claude Code, Codex, OpenCode | 5 | 1,554 tok |
| The-40-Thieves/obsidian-tc Obsidian Turbocharged — governed, agent-ready Obsidian MCP server. Multi-vault native, plu | 13 | Claude Code, Codex, OpenCode | 16 | 6,194 tok |
| Innocent-children/dev-flow dev-flow.top Task control for AI coding agents: explicit scope, bounded verification, durable state, sa | 13 | Codex, OpenCode | 1 | 4,538 tok |
| GeiserX/telegram-archive-mcp geiserx.github.io MCP Server for Telegram-Archive — search messages, browse chats, and access archived Teleg | 13 | Claude Code, Codex, OpenCode | 4 | 2,339 tok |
| cyanheads/open-meteo-mcp-server npmjs.com Geocode places, fetch global weather forecasts, historical climate, marine conditions, air | 13 | Claude Code, Codex, OpenCode | 2 | 17,116 tok |
| 6Kmfi6HP/avoid-overkill Reduce defensive programming issues in GPT-5.6 models — keep engineering & paper writing p | 13 | Codex, OpenCode | 1 | 125 tok |
| everclear077/dsh-progressive-tools Progressive tool discovery for DeepSeek Harness — tiny stable surface, searchable catalog, | 13 | Claude Code, Codex, OpenCode | 2 | 944 tok |
| noclickapp/noclick noclick.com Build agents to automate any background task; works with your ChatGPT/Claude subscription. | 13 | Claude Code, Codex, OpenCode | 7 | 2,390 tok |
| modeled-information-format/MIF mif-spec.dev Open standard for portable AI knowledge interchange — JSON-LD + Markdown dual format with | 13 | Claude Code, Codex, GitHub Copilot | 4 | 418 tok |
| devjefferson/synapos | 13 | Claude Code, Codex, GitHub Copilot, OpenCode | 12 | 1,956 tok |
| ruoyu123123/ruoyuai | 13 | Claude Code, Codex, OpenCode | 39 | 21,917 tok |
| ahmadulhoq/agentskel The skeleton for agentic development — persistent memory, shared standards, and structured | 13 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 7 | 5,625 tok |
| anstosa/ferry.fyi ferry.fyi Production ferry planning platform combining real-time data, capacity forecasting, compute | 13 | Codex, OpenCode | 2 | 1,821 tok |
| oklabflensburg/open-city-planner stadtplaner.oklabflensburg.de Open-source Web GIS for exploring, drawing and analyzing urban areas with OpenStreetMap, P | 13 | Codex, OpenCode | 1 | 2,637 tok |
| fmind/dot fmind.dev AI-driven, CLI-first dotfiles for Linux & macOS — chezmoi + mise, Fish, Neovim, and a type | 13 | Claude Code, Codex, OpenCode | 6 | 1,703 tok |
| dxe/adb Activist Database Project | 13 | Claude Code, Codex, OpenCode | 5 | 1,091 tok |
| TimothyVang/verdict-dfir VERDICT — a DFIR agent (Claude Code as the engine) that produces a signed, offline-verifia | 13 | Claude Code, Codex, OpenCode | 6 | 8,726 tok |
| noizu-labs-ml/NoizuPromptLingo A Standardized Prompt Syntax/Language to train models and humans against for faster behavi | 13 | Claude Code, Codex, OpenCode | 55 | 6,974 tok |
| Badminton-Apps/badman badman.app Codebase for Badman | 13 | Claude Code, Codex, GitHub Copilot, OpenCode | 53 | 7,515 tok |
| PranavBakre/Junior My successor once AGI arrives | 13 | Claude Code, Codex, OpenCode | 10 | 4,525 tok |
| IronAdamant/wikifier Agent-first, zero-dependency, self-maintaining codebase documentation & change tracking sy | 13 | Claude Code, Codex, OpenCode | 2 | 4,778 tok |
| Vantiq/vantiq-extension-sources Contains source code for VANTIQ Extension sources as well as SDKs for building these sourc | 13 | Claude Code, Codex, OpenCode | 2 | 1,066 tok |
| wintersleepAI/swnr The Stars Without Number, Cities Without Number, and Ashes Without Number system for Foun | 13 | Claude Code, Codex, Cursor, Gemini CLI, OpenCode | 4 | 3,935 tok |
| nickna/Conduit A unified API gateway for multiple LLM providers with OpenAI-compatible endpoints | 13 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 12,868 tok |
| sageox/agent-toolkit sageox.ai A hosted AI coworker in the channels where your team already talks — open source, and your | 13 | Claude Code, Codex, OpenCode | 13 | 780 tok |
| cfpperche/picode PiCode — browser-based Agent Development Environment (ADE) for coding-agent CLIs: Pi, Clau | 13 | Claude Code, Codex, OpenCode | 6 | 3,391 tok |
| ongoingai/gateway docs.ongoing.ai Headless, OpenAI-compatible AI gateway in Go. Multi-tenant auth, tracing, cost tracking, r | 13 | Claude Code, Codex, OpenCode | 2 | 1,589 tok |
| ricardodantas/feedo feedo.ricardodantas.me 📡 A stunning terminal RSS reader built with Rust and ratatui | 13 | Codex, OpenCode | 1 | 1,379 tok |
| kleinicke/tapirscan tapirscan.f-kleinicke.de Barcode scanning library for browsers and native applications | 13 | Claude Code, Codex, OpenCode | 2 | 807 tok |
| samuelnovaes/smart-tiling Windows 10–Style Window Tiling for GNOME 49+ | 13 | Codex, OpenCode | 1 | 2,226 tok |
| cypress-io/cypress-design design.cypress.io Components to build UI with the Cypress Brand | 13 | Claude Code, Codex, OpenCode | 9 | 2,258 tok |
| openshift/external-secrets-operator External-Secrets Operator for deploying and managing external-secrets. | 13 | Claude Code, Codex, OpenCode | 5 | 3,472 tok |
| spidey889/context-generator spidey889.github.io Switch AIs without re-explaining everything. | 13 | Codex, OpenCode | 1 | 1,741 tok |
| L337-org/docker-mcp Docker-MCP-Server - An MCP server covering the full management surface of Docker. Manage, | 12 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 9,394 tok |
| cas-team-analyst/team-analyst | 12 | Claude Code, Codex, Gemini CLI, OpenCode | 8 | 2,346 tok |
| rm2thaddeus/promptgramming rm2thaddeus.github.io A framework to structure thoughts and shape them into production code | 12 | Codex, OpenCode | 1 | 1,001 tok |
| EmblemCompany/Agent-skills emblemvault.ai Official skill collection for EmblemAI agents — 200+ crypto tools across 7 blockchains | 12 | Claude Code, Codex, OpenCode | 2 | 1,191 tok |
| lynxlangya/knowject knowject.wangyun.fan AI-assisted project knowledge workspace for development teams. | 12 | Codex, OpenCode | 1 | 1,905 tok |