23,196 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 agents7,571Claude Code6,627Data and AI3,684Backend and APIs3,492Languages3,401Planning3,221Git and workflow3,179Code review2,740Testing2,368Memory and context2,365Writing and docs2,309DevOps and cloud2,308Research2,298Frontend2,256Security2,015Productivity1,715
All Claude Code31,984 Codex23,196 OpenCode22,145 GitHub Copilot3,551 Gemini CLI1,917 Cursor1,736 Windsurf133 Kiro79
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| kitepon/Throughline npmjs.com Cut ~90% of Claude Code's context usage while keeping nearly all the memory | 4 | Claude Code, Codex, OpenCode | 4 | 21,134 tok |
| amlei/amlei-resume An Agent Skills package for writing resumes, running in AI assistants such as Claude Code, | 4 | Codex, OpenCode | 1 | 995 tok |
| rhein1/fable5-codex OpenAI Codex plugin for evidence-first code review, audits, fact checks, run contracts, an | 4 | Codex, OpenCode | 1 | 372 tok |
| Xerrion/servicenow-platform-mcp A developer & debug-focused MCP server for ServiceNow - platform introspection, change int | 4 | Codex, OpenCode | 1 | 30 tok |
| everclear077/dsh-progressive-tools Progressive tool discovery for DeepSeek Harness — tiny stable surface, searchable catalog, | 4 | Claude Code, Codex, OpenCode | 2 | 944 tok |
| lizard-build/lizard-cli lizard.build Deploy and manage apps on Lizard from your terminal — upload and deploy code, stream logs, | 4 | Codex, OpenCode | 1 | 1,516 tok |
| agno-agi/agentos-render docs.agno.com AgentOS: Serve agents over API, MCP, and chat interfaces like Slack | 4 | Claude Code, Codex, OpenCode | 11 | 15,298 tok |
| xsourabhsharma/ai-security-audit-pro Universal security-audit plugin and CLI engine for AI agents with OWASP-mapped reports for | 4 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 753 tok |
| guicybercode/Jig Terminals on a canvas. A local-first desktop workspace for coding-agent CLIs, parallel PTY | 4 | Codex, OpenCode | 1 | 1,134 tok |
| cosmo-autom8s/ai-executive-assistant Your personal executive assistant that lives in your terminal. Built on Claude Code. Manag | 4 | Claude Code, Codex | 25 | — |
| MilindGaharwar/fettle pypi.org Open-source trust layer for AI coding agents: in-session quality, delegation-safe policy, | 4 | Claude Code, Codex, GitHub Copilot, OpenCode | 18 | 250 tok |
| hotdocx/emdash hotdocx.github.io emdash — Functorial Type Theory (proof-assistant for ω-categories) | 4 | Codex, Cursor, OpenCode | 2 | 2,467 tok |
| sernst/skills My AI Agent Skills. A nix of ones I've developed myself and others I've adapted from other | 4 | Codex, OpenCode | 1 | 446 tok |
| staticaland/skills Ceremonial grade agent skills 🫖 | 4 | Claude Code, Codex, OpenCode | 7 | 949 tok |
| Netcracker/qubership-ai-packages | 4 | Claude Code, Codex | 9 | — |
| howells/skills | 4 | Claude Code, Codex, OpenCode | 2 | 2,055 tok |
| yandong2023/java-backend-team An AI Skill configuration package for enterprise Java backend teams, designed to help deve | 4 | Codex, OpenCode | 2 | 1,789 tok |
| accordproject/concerto-rust Implementation of Concerto runtime in Rust | 4 | Codex, OpenCode | 1 | 279 tok |
| dotagents-io/dotagents dotagents.io | 4 | Claude Code, Codex, OpenCode | 2 | 80 tok |
| AEALab/CraftWiki | 4 | Codex, OpenCode | 1 | 178 tok |
| vodoon-cell/ai-website-cloner-template-all ai-website-cloner-template | 4 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 2,437 tok |
| dsvi-b/corretor-enem Corretor de redação ENEM (5 competências) agnóstico de agent, calibrado em 11.147 redações | 4 | Claude Code, Codex, OpenCode | 3 | 1,416 tok |
| reem-sab/tech-writer-prompts An open-source, tested prompt library for technical writers. Prompts are documentation. Do | 4 | Codex, OpenCode | 1 | 761 tok |
| jperocho/diffwarden Independent PR guardian skill/playbook. | 4 | Claude Code, Codex, OpenCode | 2 | 1,076 tok |
| itslab42/agentctl itslab42.github.io Define AI coding-agent permissions once, enforce them everywhere. One .ai/ source of truth | 4 | Codex, Kiro, OpenCode | 3 | 1,219 tok |
| muhammaddadu/outlook-cli | 4 | Codex, OpenCode | 1 | 2,473 tok |
| headlinearena/headlinearena-agent-plugin headlinearena.com Skills for integrating AI agents with HeadlineArena | 4 | Claude Code, Codex, OpenCode | 2 | 1,445 tok |
| prevalentWare/opencode-loop-plugin npmjs.com OpenCode loop plugin for Claude Code-style /loop recurring prompts, idle-aware scheduling, | 4 | Codex, OpenCode | 1 | 982 tok |
| Ding-Ding-Projects/lowlevel-computer-use-mcp ding-ding-projects.github.io | 4 | Codex, OpenCode | 1 | 1,452 tok |
| MMoMM-org/miyo-kado Where AI meets your vault, on your terms... Obsidian Vault MCP Server | 4 | Claude Code, Codex, OpenCode | 3 | 1,884 tok |
| leixyou/chatgpt-web-image-mcp Local MCP bridge for generating and retrieving images through a dedicated ChatGPT web brow | 4 | Codex, OpenCode | 1 | 276 tok |
| Hellowda253/KIT-PUCP-MCP Kit MCP comunitario para estudiantes PUCP: Paideia, Campus Virtual, horarios, notas, matrí | 4 | Codex, OpenCode | 1 | 1,027 tok |
| valenZW/cst-sim-agent A Claude Code plugin turning CST Studio Suite into a conversational electromagnetic simula | 4 | Codex, OpenCode | 1 | 2,419 tok |
| cyanheads/internet-archive-mcp-server npmjs.com Search the Wayback Machine and IA library (40M+ items), fetch archived snapshots, retrieve | 4 | Claude Code, Codex, OpenCode | 2 | 11,224 tok |
| lllyin/mcp-cn-a-stock An A-share data MCP (Model Context Protocol) service for AI Agents. | 4 | Claude Code, Codex, OpenCode | 2 | 345 tok |
| 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 |
| kaelig/state-of-ai-in-design-systems state-of-ai-in-design-systems.netlify.app A field survey of how 20 open-source design systems make themselves AI-friendly: MCP serve | 4 | Claude Code, Codex, OpenCode | 10 | 5,437 tok |
| davidmosiah/fitbit-mcp wellness.delx.ai MCP server for Fitbit — query daily activity, heart rate, sleep, and body data from your F | 4 | Codex, OpenCode | 1 | 152 tok |
| ashyeager/harikos.ai harikos-ai.vercel.app Truth based memory for AI coding Agents. | 4 | Codex, OpenCode | 1 | 1,367 tok |
| JTCHE/houdini-mcp Houdini MCP — AI control of Houdini via Model Context Protocol (fork of kleer001/houdini-m | 4 | Claude Code, Codex, OpenCode | 2 | 384 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 |
| hronaut/hronaut hronaut.dev The browser your coding agent can come back to — visible, persistent, isolated workspaces | 4 | Codex, OpenCode | 1 | 1,310 tok |
| dfridkin/clawops clawops is a provider-agnostic command-line tool for deploying, configuring, and operating | 4 | Claude Code, Codex, OpenCode | 11 | 3,548 tok |
| ssheleg/super-ux skills.sshlg.me Scenario-driven UX for coding agents: vision, personas, flows, screens, acceptance scenari | 4 | Claude Code, Codex, OpenCode | 2 | 2,208 tok |
| testivai/testivai-oss testiv.ai Local-first visual regression testing for Playwright, Selenium, WebdriverIO, Python, Java | 4 | Claude Code, Codex, OpenCode | 2 | 4,479 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 |
| nworks3d/THOR-memory-bible-for-AI A memory for your AI coding assistant. It keeps what you tell it and hands the right note | 4 | Codex, OpenCode | 1 | 3,658 tok |
| dig1t/skills | 4 | Claude Code, Codex | 3 | — |
| 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 |
| jmagly/hound-mcp MCP server for Hound code search - expose regex-based code search to Claude Code and AI ag | 4 | Claude Code, Codex, OpenCode | 2 | 314 tok |