23,761 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 agents8,530Claude Code6,887Git and workflow3,618Data and AI3,582Backend and APIs3,558Languages3,485Planning3,325Code review2,903Testing2,691DevOps and cloud2,482Writing and docs2,481Memory and context2,373Research2,322Frontend2,310Security2,179Project management1,971
All Claude Code32,523 Codex24,842 OpenCode23,761 GitHub Copilot3,723 Gemini CLI2,038 Cursor1,771 Windsurf201 Kiro116
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| cortadel/cortadel cortadel.ai Self-hosted long-term temporal graph memory for AI agents — MCP, REST and a dashboard in o | 6 | Claude Code, Codex, OpenCode | 2 | 3,971 tok |
| dbhosbu-dotcom/renwei Renwei — book-length Chinese AI humanizer. 51 rules covering AI tells, Euro-Chinese syntax | 6 | Codex, OpenCode | 1 | 863 tok |
| ldilov/harness-forge AI coding agent runtime that makes LLMs understand your codebase with repository-aware con | 6 | Claude Code, Codex, OpenCode | 3 | 4,585 tok |
| zenml-io/kitaru-skills zenml.io Agent skills for designing and building durable AI agent workflows with Kitaru | 6 | Claude Code, Codex, OpenCode | 2 | 2,817 tok |
| yailPeralta/ast-mcp-server astmcp.com Correctness-oriented MCP server and batch CLI for compact structural reads and reviewed Ty | 6 | Codex, OpenCode | 1 | 50 tok |
| choiyounggi/dev-loop LLM Knowledge Management • Wiki-grounded verification • RFC-based documentation • Best pra | 6 | Claude Code, Codex, OpenCode | 1 | 4,134 tok |
| metago-ai/metagolifeform metago.life MetaGO Agent Harness (agent runtime control suite) — 100 skills · 112 MCP tools (55+57) / | 6 | Claude Code, Codex, OpenCode | 1 | 37,859 tok |
| ambiental-media/jor-mcp jormcp.ambiental.media MCP server for newsrooms, developed by Ambiental Media. / Servidor MCP para redações, de | 6 | Claude Code, Codex, GitHub Copilot, OpenCode | 9 | 2,600 tok |
| Ker102/Harneloop harneloop.kaelux.dev Build self-improving AI agent harnesses with portable harness units, artifact-aware testin | 6 | Codex, OpenCode | 1 | 1,014 tok |
| zaxardery8011-design/execution-proofs Runtime artifact existence & freshness verification for AI agent completion claims. A ligh | 6 | Codex, OpenCode | 1 | 2,121 tok |
| thierry-gilgen-ict/engawa Engawa — the open toolkit for agent-native websites. Bring your agent. | 6 | Codex, OpenCode | 1 | 772 tok |
| blendsdk/fluentui-mcp Agent Skill that teaches AI coding assistants Microsoft Fluent UI React v9 with component, | 6 | Claude Code, Codex, OpenCode | 2 | 1,126 tok |
| lidless-labs/immichctrl lidless.dev Your photo library outgrew the click-grid. immichctrl gives shells, cron, and agents one t | 6 | Claude Code, Codex, OpenCode | 2 | 1,600 tok |
| az-coder-123/excel-mcp Excel MCP Server: Connect AI agents to Excel/CSV files. Securely read, query, and analyze | 6 | Codex, OpenCode | 1 | 1,977 tok |
| Reederey87/grok-build-codex-plugin Codex CLI plugin: delegate reviews and bounded coding tasks to the local Grok Build CLI vi | 6 | Claude Code, Codex, OpenCode | 2 | 733 tok |
| liatrio-labs/slash-command-manager Python CLI tool and MCP server for generating slash commands in AI coding assistants (Curs | 6 | Codex, OpenCode | 1 | 254 tok |
| AdamRussak/self-doc Self-hosted documentation RAG pipeline that serves semantic search to LLM agents over the | 6 | Codex, OpenCode | 1 | 985 tok |
| blake-simpson/belmont An agent agnostic, project agnostic, AI toolkit for running structured coding sessions wit | 6 | Claude Code, Codex, OpenCode | 2 | 12,735 tok |
| azuma520/cinematic-ui akseolabs.com A reasoning-first cinematic web design skill. Makes AI think like a film director — resear | 6 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 1,879 tok |
| CaesiumY/rocky-skills Rocky's voice from Project Hail Mary as a Claude Code skill — blunt diagnosis, compressed | 6 | Codex, Gemini CLI, OpenCode | 2 | 1,694 tok |
| xiaozhi86/qamaster An intelligent R&D productivity assistant based on large language models. It deeply analyz | 6 | Codex, OpenCode | 1 | 655 tok |
| openplanr/OpenPlanr openplanr.dev The open harness around your coding agent. Plans live in your repo as files, your agent bu | 6 | Claude Code, Codex, OpenCode | 2 | 451 tok |
| moasq/ios-dev-agent Universal iOS development agent - skills, rules, MCP servers for Claude Code, Codex, Curso | 6 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 725 tok |
| Parth308/auditx auditx-cli.vercel.app | 6 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 4 | 415 tok |
| open-horizon-labs/repo-native-alignment Code is a graph serialized as text. Agents fail when they reason over the serialization in | 6 | Claude Code, Codex, OpenCode | 35 | 3,895 tok |
| bengous/claude-code-plugins Opinionated plugins and workflow extensions for Claude Code. | 6 | Claude Code, Codex, OpenCode | 14 | 1,796 tok |
| windyroad/agent-plugins windyroad.github.io Claude Code plugins for architecture governance, risk management, TDD, and delivery qualit | 6 | Claude Code, Codex, OpenCode | 3 | 2,359 tok |
| thrashr888/thrashr888-agent-kit Claude Code plugins and marketplace | 6 | Claude Code, Codex, OpenCode | 3 | 1,912 tok |
| gyuha/forge gyuha.com An agent-engineering workflow plugin for Claude Code — one task, one cycle: ask·plan → exe | 6 | Claude Code, Codex, OpenCode | 2 | 21,563 tok |
| promptctl/laws Claude Code plugin: laws for writing high quality code and llm guidance | 6 | Claude Code, Codex, OpenCode | 4 | 200 tok |
| Locface/AgentSec agentsec.site | 6 | Codex, OpenCode | 1 | 103 tok |
| prathamdby/skills 📚 A collection of my day-to-day skills. | 6 | Codex, OpenCode | 1 | 510 tok |
| crabsmadethis/d2r-horadric-tools Offline Diablo II: Resurrected toolkit for save editing, character creation, creating your | 6 | Claude Code, Codex, OpenCode | 2 | 1,908 tok |
| jan3dev/agentic-aqua a1lab.com MCP server and CLI to manage assets in Bitcoin and Liquid | 6 | Codex, Cursor, OpenCode | 2 | 3,431 tok |
| cirwel/unitares cirwel.org Accountability infrastructure for long-running AI agents. Self-hosted MCP server: identity | 6 | Claude Code, Codex, OpenCode | 2 | 22,047 tok |
| swkstudios/unifi-fabric-mcp-server MCP server for UniFi Fabric API: manage your entire UniFi network through any AI assistant | 6 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 6,058 tok |
| frontsail-ai/aspicio aspicio.frontsail.app DXF and vector-PDF viewer for the web and AI agents — TypeScript parse→tessellate→render e | 6 | Claude Code, Codex, OpenCode | 2 | 3,293 tok |
| ratatatat1/pingcode-mcp | 6 | Claude Code, Codex, OpenCode | 2 | 974 tok |
| aa-on-ai/agentic-design-system agentic-design-system-lovat.vercel.app A design practice for coding agents: product-aware UI workflows, rendered evidence, and re | 6 | Claude Code, Codex, OpenCode | 2 | 475 tok |
| cyanheads/libofcongress-mcp-server npmjs.com Search LOC digital collections, browse Chronicling America newspapers with full OCR text, | 6 | Claude Code, Codex, OpenCode | 2 | 17,406 tok |
| GiulioDER/RE-call giulioder.github.io Memory that abstains instead of guessing: agent memory in a local SQLite file or your own | 6 | Claude Code, Codex, OpenCode | 2 | 2,593 tok |
| vibgrate/cli vibgrate.com Local codebase intelligence for AI coding agents and software teams, in the CLI and VS Cod | 6 | Codex, OpenCode | 1 | 945 tok |
| BlueStarSystem/aura-ui aura-ui.com 127 free MIT Blade components for Laravel + Livewire + Alpine + Tailwind 4. Own-the-code C | 6 | Claude Code, Codex, OpenCode | 2 | 1,418 tok |
| atomchung/long-run-hybrid-coach paceandstaystrong.com Adaptive running and strength coaching for the long run — a hosted MCP server and Agent Sk | 6 | Claude Code, Codex, OpenCode | 2 | 7,344 tok |
| partymola/monzo-mcp modelcontextprotocol.io MCP server for the Monzo banking API with OAuth, local transaction cache, and spending ana | 6 | Claude Code, Codex, OpenCode | 2 | 10,135 tok |
| davidmosiah/eight-sleep-mcp wellness.delx.ai Unofficial Eight Sleep MCP server — give your AI agent your smart-mattress sleep trends, t | 6 | Codex, OpenCode | 1 | 246 tok |
| kitepon/aiterm-mcp npmjs.com One persistent MCP terminal your AI drives — and launches other coding agents (Codex/Grok/ | 6 | Codex, OpenCode | 1 | 3,895 tok |
| nikolay-e/diffctx diffctx.com Smart git diff context for LLMs and AI agents: budgeted fragment selection, deterministic, | 6 | Claude Code, Codex, OpenCode | 2 | 1,395 tok |
| simonether/kwork-mcp simonether.github.io MCP server for Kwork.ru and kwork.com: access the marketplace, proposals, conversations an | 6 | Claude Code, Codex, OpenCode | 2 | 2,203 tok |
| tonydzi/verbatim-citation-gate tonydzi.github.io Catch fabricated RAG citations before they reach the user: a zero-token verbatim gate + a | 6 | Codex, OpenCode | 1 | 846 tok |