43,652 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 agents7,588Claude Code6,636Data and AI3,676Backend and APIs3,496Languages3,402Planning3,219Git and workflow3,187Code review2,745Testing2,374Memory and context2,364DevOps and cloud2,310Writing and docs2,309Research2,295Frontend2,261Security2,021Productivity1,715
All Claude Code31,998 Codex23,222 OpenCode22,170 GitHub Copilot3,550 Gemini CLI1,918 Cursor1,738 Windsurf137 Kiro80
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| Phelan164/codex-howto codex-howto-benchmark.nguyenvantamdk2.chatgpt.site Engineering-first OpenAI Codex guide: 14 modules, 9 installable skills, reproducible bench | 6 | Codex, OpenCode | 1 | 318 tok |
| Jwrede/llmprobe bench.jonathanwrede.de Synthetic monitoring and CI smoke tests for LLM inference endpoints. | 6 | Claude Code | 1 | — |
| PDgit12/knitbrain npmjs.com The local-first brain for coding agents: project memory + workflow intelligence + lossless | 6 | Claude Code | 1 | 892 tok |
| mrmos/cosmos-mcp npmjs.com Unofficial MCP server for cosmos.so. Search, browse and build visual moodboards with Claud | 6 | Claude Code | 1 | 770 tok |
| sky32/mcport A local-first MCP Workspace tool that lets AI securely connect to, understand, and operate | 6 | Codex, OpenCode | 1 | 1,831 tok |
| churichard/fluxmail Self-hosted email CLI / API / MCP server for AI agents and apps | 6 | Claude Code, Codex, OpenCode | 3 | 678 tok |
| jinglonglong/springgraph jinglonglong.github.io Spring Cloud code knowledge graph and MCP server for AI coding agents | 6 | Claude Code | 1 | 8,257 tok |
| iamwaqargulzar/Marketing-Agent-OS Marketing Agent OS: 236 cross-platform AI agent skills for marketing, SEO, GEO/AEO, conten | 6 | Claude Code, Codex, OpenCode | 2 | 263 tok |
| defkode/orbx Per-project, isolated OrbStack Linux VMs from a zero-dependency Bash CLI — auto-named from | 6 | Claude Code, Codex, OpenCode | 2 | 1,868 tok |
| kostja94/openblog alignify.co Agent-native, Git-based blog CMS module for product sites. Mount /blog on your marketing s | 6 | Codex, OpenCode | 1 | 1,769 tok |
| preceptress/btc-15-minute-prediction-model | 6 | Codex, OpenCode | 1 | 102 tok |
| Cantara/kcp-triage LLM driven triage system for analyzing web pages and generating agentic clients based on K | 6 | Claude Code | 1 | 690 tok |
| mareurs/claude-plugins Claude Code plugin marketplace - SDD and more | 6 | Claude Code, Codex, OpenCode | 2 | 10,767 tok |
| ayeshLK/archsmith npmjs.com Turn a validated JSON IR into a consistent layered-architecture diagram (SVG) — library, C | 6 | Claude Code, Codex, OpenCode | 2 | 9,482 tok |
| wagtail/wagtail-mcp pypi.org Experimental MCP server to automate common operations on Wagtail projects | 6 | Codex, OpenCode | 1 | 504 tok |
| opedrosoares/MCP_Compras pypi.org 100 tools MCP sobre as APIs públicas do Compras.gov.br — Dados Abertos, PNCP, Portal da Tr | 6 | Claude Code | 1 | 2,268 tok |
| opensymph/open-computer-use A local MCP server that gives AI agents eyes and hands on your desktop — macOS, Windows & | 6 | Claude Code, Codex, OpenCode | 2 | 605 tok |
| gzchenhao/openhire pypi.org Agent-native job search over employer ATS APIs (Greenhouse/Lever/Ashby/Beisen/Moka) — 139 | 6 | Claude Code | 1 | 3,851 tok |
| Archstone-Romania/archstone archstone.dev A compiler for AI capabilities — describe what your business does once, and Archstone gene | 6 | Claude Code | 1 | 1,315 tok |
| tonydzi/second-brain-starter-kit Claude Code as a second brain: 100 battle-tested skills, a working CRM engine, vault templ | 6 | Codex, OpenCode | 1 | 1,104 tok |
| Difz25x/roblox-mcp-difz | 6 | Claude Code | 1 | 2,400 tok |
| Hugegreencandle/xahau-mcp First MCP for the Xahau network — offline Hook intelligence (WASM inspection + a Hooks-spe | 6 | Claude Code | 1 | 716 tok |
| IcyHot09/opengrok-mcp-server OpenGrok MCP Server is a native Model Context Protocol server that bridges your organizati | 6 | Claude Code, Codex, OpenCode | 2 | 4,654 tok |
| Iron-Mark/Hackathon-Stellaroid_Earn stellaroid.tech Stellaroid Earn — On-chain credential registry and payment rail on Stellar. Issue, verify, | 6 | Claude Code, Codex, OpenCode | 3 | 1,781 tok |
| anvilnine/artifacts Self-hosted artifact publishing. POST HTML/JSX/Markdown/zip, get an unguessable public URL | 6 | Claude Code | 2 | 497 tok |
| olgasafonova/gleif-mcp-server MCP server for GLEIF LEI (Legal Entity Identifier) database access | 6 | Claude Code, Codex, OpenCode | 2 | 413 tok |
| michaelfromorg/mcp-yahoo-fantasy An MCP server for real-time sports. | 6 | Claude Code | 1 | 1,399 tok |
| brooksy4503/rss-agent-viewer | 6 | Claude Code, Cursor | 1 | — |
| solanaguide/solana-cli Manage wallets, swap or transfer tokens, make payments and trade on Solana. CLI designed f | 6 | Claude Code | 1 | 2,752 tok |
| cacr92/WeReply Automatic WeChat chat reply assistant | 6 | Claude Code, Codex, Cursor, OpenCode | 50 | 4,270 tok |
| selfpatch/ros2_medkit_mcp selfpatch.github.io MCP server for ros2_medkit. Bridge LLM agents to the SOVD REST API for ROS 2 diagnostics a | 6 | GitHub Copilot | 1 | 1,582 tok |
| alitiknazoglu/mcprobe An MCP server that audits other MCP servers. Connects to any stdio/HTTP target, lints ever | 6 | Claude Code, Codex | 1 | — |
| devnullvoid/mcp-ssh-tmux pypi.org Persistent SSH sessions for AI agents via tmux - No regex, no complexity, just visual snap | 6 | Codex, OpenCode | 1 | 1,489 tok |
| cardmagic/notes CLI and MCP server to search and browse Apple Notes | 6 | Claude Code | 1 | 747 tok |
| kouroshez/coding-os coding-os.dev The cognitive operating system that gives AI coding agents memory, structure, and discipli | 6 | Claude Code, Codex, OpenCode | 2 | 4,590 tok |
| nushey/agents-md-generator Mcp server to create agents-md efficiently | 6 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,335 tok |
| emersonjds/redbar Spec-driven test agents for every layer. Math finds what you changed that nothing tests; a | 6 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 1,518 tok |
| Taketo-Yoda/uv-sbom Generate SBOMs for Python projects managed by uv. | 6 | Claude Code, Codex, OpenCode | 20 | 2,891 tok |
| yu-iskw/llmops-demo-ts Demonstrate LLMOps in TypeScript | 6 | Claude Code, Cursor | 29 | 1,463 tok |
| Rixmerz/agentcockpit | 6 | Claude Code | 55 | 1,858 tok |
| GRACENOBLE/fullstack-template How I skip the repetitive setup, save tokens, save time and focus on the business logic | 6 | Claude Code, Codex, OpenCode | 15 | 3,658 tok |
| namastexlabs/automagik-cli A powerful TypeScript-based CLI chat application for interacting with multi-agent AI syste | 6 | Claude Code, Codex, OpenCode | 14 | 3,783 tok |
| claude-code-expert/tika tika-kappa.vercel.app A TODO application developed using the SDD approach | 6 | Claude Code | 20 | 20 tok |
| vishnujayvel/pdlc-autopilot Autonomous spec-driven development for Claude Code — Director/Actor/Critic pattern with du | 6 | Claude Code | 1 | 1,531 tok |
| simatic-ax/io Library with IO handling in ST | 6 | GitHub Copilot | 1 | 1,651 tok |
| henkaku-center/omise-interface omise.henkaku.org | 6 | Codex, GitHub Copilot, OpenCode | 2 | 110 tok |
| dnsabby/MSITM.6341 Python Class Shared Project Directory | 6 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 61 | 933 tok |
| lesleslie/jinja2-async-environment Provides asynchronous alternatives to Jinja2's standard template environment and loaders | 6 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,668 tok |
| gkmngrgn/rayt huggingface.co Ray Tracing in Python. | 6 | Gemini CLI | 1 | 563 tok |
| Kuniwak/puml-parallel Composing multiple PlantUML state diagrams in parallel with synchronization events | 6 | Claude Code, Codex, Gemini CLI, OpenCode | 4 | 8 tok |