23,799 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 agents8,544Claude Code6,892Git and workflow3,622Data and AI3,580Backend and APIs3,558Languages3,492Planning3,321Code review2,907Testing2,690DevOps and cloud2,489Writing and docs2,484Memory and context2,374Research2,321Frontend2,311Security2,178Project management1,971
All Claude Code32,539 Codex24,879 OpenCode23,799 GitHub Copilot3,723 Gemini CLI2,040 Cursor1,772 Windsurf202 Kiro116
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| salimfadhley/agent-inbox A SQLite mailbox for local LLM agents — one HTTP API, an ActivityStreams messaging model, | 4 | Claude Code, Codex, OpenCode | 2 | 3,720 tok |
| valuein/valuein valuein.biz Point-in-time SEC fundamentals for AI agents and quants: 120.5M+ standardized facts from 1 | 4 | Claude Code, Codex, OpenCode | 2 | 10,758 tok |
| ashyeager/harikos.ai harikos-ai.vercel.app Truth based memory for AI coding Agents. | 4 | Codex, OpenCode | 1 | 1,367 tok |
| ssheleg/sheleg-design-skill skills.sshlg.me Define the visual language of an interface, from typography and layout to motion, tokens a | 4 | Codex, OpenCode | 1 | 27 tok |
| RandyNorthrup/high-quality-projects-skill Vendor-neutral project discovery, feature delivery, and quality retrofit. Scan and enhance | 4 | Codex, GitHub Copilot, OpenCode | 2 | 1,824 tok |
| octanevz/codex-debate Claude Code plugin for second opinions: iterative adversarial debates between Claude and C | 4 | Claude Code, Codex, OpenCode | 2 | 989 tok |
| aivsomkar/advisor-strategy-skill Advisor Strategy skill for AI coding agents, spawns a stronger model as strategic advisor | 4 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 2,237 tok |
| stormlive-ai/ag-sdd npmjs.com Spec-Driven Development (SDD) harness & skill suite for Google Antigravity (AGY), Gemini 3 | 4 | Codex, OpenCode | 1 | 2,613 tok |
| Herbertmt978/HA_Codex_Bridge Run Codex privately inside Home Assistant with ChatGPT login, automations, skills, plugins | 4 | Codex, OpenCode | 1 | 1,412 tok |
| yuri-semenenko/ai-engineering-workspace One engineering workflow across Claude Code, Codex, Copilot, and Gemini CLI. A portable pe | 4 | Claude Code, Codex, GitHub Copilot, OpenCode | 7 | 4,483 tok |
| Do-fei/website-studio-skill Portable Agent Skill for website discovery, design, implementation, QA, and hosting handof | 4 | Codex, OpenCode | 1 | 234 tok |
| brunofin/openproject-mcp A Model Context Protocol (MCP) server that enables AI agents to interact with OpenProject' | 4 | Codex, OpenCode | 1 | 1,046 tok |
| originalrashmi/rc-engine-product-framework rc-engine.vercel.app RC Engine — A complete AI-native product development pipeline. 31 MCP tools across 4 domai | 4 | Claude Code, Codex, OpenCode | 41 | 5,187 tok |
| ukolov-dev/mcp-project-context-router ukolov-dev.github.io Local-first project memory, context packs, backlog, and verification workflows for coding | 4 | Codex, OpenCode | 1 | 219 tok |
| babybuddy/babybuddy-mcp | 4 | Codex, OpenCode | 1 | 1,227 tok |
| dcierra/DarwinRelay Turn ChatGPT and other MCP clients into local agents on macOS — shell, files, PTY, browser | 4 | Codex, OpenCode | 1 | 3,046 tok |
| kody-bot/home-mcp-starter kody.codes Starter for a home MCP server you can connect to Kody over Cloudflare Tunnel and Access. | 4 | Codex, OpenCode | 1 | 53 tok |
| solitraderbusiness/tsetmc-mcp | 4 | Codex, OpenCode | 1 | 1,536 tok |
| cyanheads/noaa-spaceweather-mcp-server npmjs.com Query NOAA SWPC space weather: geomagnetic storm scales, Kp index, aurora forecasts, solar | 4 | Claude Code, Codex, OpenCode | 2 | 15,308 tok |
| dpc00/sublime-mcp MCP server for Sublime Text 4 — lets Claude Code read and control a running ST instance | 4 | Claude Code, Codex, OpenCode | 2 | 1,017 tok |
| CSOAI-ORG/councilof-ai councilof.ai councilof-ai — measured and verified by the GSPC living engine (pulse: signed public time | 4 | Claude Code, Codex, OpenCode | 3 | 3,425 tok |
| PulseBet/pulse-verity thepulse.markets MCP server for signed crypto reference prices with local receipt verification. Keyless BTC | 4 | Claude Code, Codex, OpenCode | 2 | 1,098 tok |
| aarwitz/tapp runtapp.com Let coding agents prove UI changes on real iOS, Android, and web surfaces—with inspectable | 4 | Codex, OpenCode | 1 | 4,654 tok |
| anishmoncivarghese/sonde Local code-context engine for AI coding agents: structural answers within a token budget. | 4 | Claude Code, Codex, OpenCode | 7 | 1,941 tok |
| gripforgeai/mcp gripforge.ai The tools your AI needs to make your games. Turn prompts into production-ready game assets | 4 | Claude Code, Codex, OpenCode | 2 | 176 tok |
| libtmux/libtmux-go libtmux.org Alpha - libtmux for Go: a typed tmux library. No runtime dependencies, plus an MCP server | 4 | Claude Code, Codex, OpenCode | 3 | 841 tok |
| mindroom-ai/matrix-mcp matrix-mcp.mindroom.chat Matrix MCP server for local coding agents | 4 | Codex, OpenCode | 1 | 74 tok |
| Grail-Computer/Self-Improving-Agent A starting AGENTS.md to instruct the agent to always update its rules and context to learn | 4 | Codex, OpenCode | 1 | 1,299 tok |
| endlessblink/clean-cut-mcp Simply describe your animation, and watch Claude create stunning React-powered videos in a | 4 | Claude Code, Codex, OpenCode | 10 | 903 tok |
| x0c/arthas-mcp MCP server that exposes Alibaba Arthas Java diagnostics to AI agents, with zero-config JVM | 4 | Codex, OpenCode | 1 | 991 tok |
| k-rister/ephemeral-buffer-mcp Ephemeral in-memory command output capture and hybrid search MCP server for coding agents. | 4 | Claude Code, Codex, OpenCode | 2 | 1,375 tok |
| sandraschi/bilibili-mcp Bilibili (B站) content-intelligence bridge - search, trending, video intel and transcript s | 4 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 6 | 2,097 tok |
| zai-one/telegram-ads-mcp zai.one MCP server for Telegram Ads (ads.telegram.org, TON): create, target, pause ads and read st | 4 | Claude Code, Codex, OpenCode | 2 | 413 tok |
| Muqaram0/oscp-companion oscp-companion.vercel.app OSCP methodology knowledge base with web UI and MCP server | 4 | Claude Code, Codex, OpenCode | 2 | 79 tok |
| Getopir/AgentCAD Independent agent-oriented parametric CAD platform based on FreeCAD, with a typed MCP gate | 4 | Codex, OpenCode | 1 | 2,245 tok |
| E-R-Butch/Goofish-Z Complete Xianyu integration package — GUI + Agent dual-driven (CLI/MCP/HTTP API). Combines | 4 | Codex, OpenCode | 1 | 200 tok |
| seonglae/openportfolio openportfolio.app Self-hosted portfolio tracker: every account as one net worth, the investor flows behind t | 4 | Codex, OpenCode | 1 | 1,997 tok |
| upgrade-ventures/upgradeseo upgrade.ventures Truly free, open-source SEO tools you self-host: keyword research, rank tracking, backlink | 4 | Claude Code, Codex, OpenCode | 18 | 1,300 tok |
| no-materials/hird A typed language for LLM agent systems on BEAM: effect-row tracking, auditable tool effect | 4 | Claude Code, Codex, OpenCode | 2 | 1,667 tok |
| frankxai/awesome-design-agent-skills Web-first design-agent skills: hierarchy, accessibility, interaction quality, and visual Q | 4 | Codex, OpenCode | 1 | 462 tok |
| StepFunctionLLC/mcp-server-cantera An MCP server wrapped around Cantera to facilitate use by an LLM | 4 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,463 tok |
| qut-dmrc/buttermilk | 4 | Claude Code, Codex, Gemini CLI, OpenCode | 9 | 75 tok |
| panoptes/panoptes-utils panoptes.github.io A set of Astronomical utility functions. PANOPTES style. :hammer_and_wrench: :telescope: : | 4 | Codex, GitHub Copilot, Gemini CLI, OpenCode | 3 | 8,008 tok |
| skyengpro/iviss | 4 | Claude Code, Codex, OpenCode | 6 | 1,559 tok |
| coze-dev/coze-sdk-gen | 4 | Codex, OpenCode | 2 | 2,931 tok |
| 1r0nw1ll/quantum-arithmetic-research Quantum Arithmetic (QA) System: Novel modular arithmetic framework for signal processing, | 4 | Claude Code, Codex, Gemini CLI, OpenCode | 9 | 5,478 tok |
| danstis/ado-asana-sync WIP: A tool to sync tasks from Azure DevOps -> Asana | 4 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 9,518 tok |
| multei/web multei.com.br Multei web app | 4 | Codex, Cursor, OpenCode | 2 | 828 tok |
| kyle-chalmers/ticketwright Ticket-driven analysis with Claude Code and other coding agents: prior work recalled, ever | 4 | Claude Code, Codex, OpenCode | 1 | 5,673 tok |
| Pattyboi101/indiestack indiestack.ai Dependency guardrail for AI coding agents — validates packages, catches hallucinations, 6, | 3 | Claude Code, Codex, OpenCode | 14 | 1,614 tok |