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 |
|---|---|---|---|---|
| Airmail/airmail-mcp airmailapp.com Model Context Protocol (MCP) server for Airmail. Lets AI assistants manage emails, contact | 7 | Claude Code, Codex, OpenCode | 2 | 1,399 tok |
| xiaolai/mac-it-guy-pro Your personal IT guy for macOS — remembers your machine, guards every action, explains wha | 7 | Codex, OpenCode | 1 | 1,786 tok |
| Wuxb02/medi-agent-swarm Multi-agent intelligent Q&A assistant / skill-agent capability integration / three-layer m | 7 | Claude Code, Codex, OpenCode | 10 | 710 tok |
| jinyimeng01/net-code-audit-skill-master World-class .NET offensive security & code audit skill suite for AI agents | 7 | Codex, OpenCode | 1 | 1,280 tok |
| omkar9854/mcp-atlassian-onpremdc mcp-atlassian-onpremdc MCP server for self-hosted Atlassian Data Center/Server installatio | 7 | Codex, OpenCode | 1 | 712 tok |
| ageless-h/blender-mcp MCP server integration for AI-assisted Blender automation. Features a 4-layer architecture | 7 | Codex, OpenCode | 1 | 1,827 tok |
| asiletskyi-pm-evo/grow-product-manager-plugin Claude Cowork plugin for Product Managers. Research, concepts, requirements, task creation | 7 | Codex, OpenCode | 1 | 2,193 tok |
| lecopivo/another-houdini-mcp Yet Another Houdini MCP | 7 | Codex, OpenCode | 1 | 1,052 tok |
| UseJunior/email-agent-mcp Email connectivity for AI agents — MCP server for Claude Code, Gemini CLI, Cursor, and mor | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 4 | 872 tok |
| ixijxjgxidj-cmd/GPU-Server-Management-MCP-Skill- | 7 | Claude Code, Codex, OpenCode | 3 | 2,318 tok |
| c47-inc/mcp-film mcp.film Curated, agent-first directory of MCP servers for AI filmmaking. | 7 | Claude Code, Codex, OpenCode | 2 | 2,820 tok |
| Contentrain/ai ai.contentrain.io Repo-native content governance for AI agents. Extract, review, and deliver UI text, docs, | 7 | Claude Code, Codex, OpenCode | 2 | 4,436 tok |
| cyanheads/arxiv-mcp-server npmjs.com Search arXiv, fetch paper metadata, and read full-text content via MCP. STDIO or Streamabl | 7 | Claude Code, Codex, OpenCode | 2 | 35,410 tok |
| cdeust/ai-architect-mcp-codebase ai-architect.tools AI Architect Codebase: cross-platform code intelligence MCP for Claude Code, Codex, Gemini | 7 | Claude Code, Codex, OpenCode | 8 | 429 tok |
| mattmohandiss/cad-mcp-server npmjs.com MCP server for AI-assisted STEP CAD inspection, geometry queries, PMI hints, and revision | 7 | Codex, OpenCode | 1 | 333 tok |
| Pseudogiant-xr/Pseudolife-MCP Persistent long-term memory for Agents — an MCP server with an associative memory bank, a | 7 | Claude Code, Codex, OpenCode | 6 | 7,401 tok |
| fouradata/mcp foura.ai MCP server for the FourA web scraping API - four tools, six prompts, one API key. | 7 | Claude Code, Codex, OpenCode | 2 | 1,248 tok |
| Zephyrex21/claude-leetcode-helper A Claude Code Skill that transforms LeetCode problems into optimized interview-ready solut | 7 | Codex, OpenCode | 1 | 3,919 tok |
| aizech/clinical-skills corpusanalytica.com A collection of AI agent skills focused on medical imaging and healthcare workflows. Built | 7 | Claude Code, Codex, OpenCode | 2 | 3,249 tok |
| netresearch/enterprise-readiness-skill Agent Skill for enterprise readiness assessment - security, quality, and automation | Clau | 7 | Codex, OpenCode | 1 | 941 tok |
| The-Utopia-Studio/skills the-utopia-studio.github.io Operator-grade AI skill marketplace for The Utopia Studio — 357 curated skills across GTM | 7 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 948 tok |
| openclaw/carapace carapace.design Canonical web design tokens, styles, and agent guidance for OpenClaw | 7 | Codex, OpenCode | 1 | 563 tok |
| cookieMonsterDev/agents-skills Agent Skills for coding agents | 7 | Claude Code, Codex, OpenCode | 2 | 395 tok |
| epfl-lara/LeanProbe Fast Lean 4 proof feedback for coding agents. CLI, Python library, and MCP server with war | 7 | Codex, OpenCode | 1 | 1,005 tok |
| its-me-prash/kleinanzeigen-reader Read & analyze any kleinanzeigen.de listing from any AI system — MCP server, function-call | 7 | Claude Code, Codex, OpenCode | 2 | 1,416 tok |
| Agnuxo1/EnigmAgent npmjs.com EnigmAgent — 6-layer encrypted vault for AI agents (AES-256 + ChaCha20 + Blowfish + Fernet | 7 | Codex, OpenCode | 1 | 276 tok |
| mgovedarov/mcp-vcf-orchestrator mgovedarov.github.io MCP server for VCF Automation Orchestrator — manage workflows, actions, configuration elem | 7 | Claude Code, Codex, OpenCode | 14 | 10,098 tok |
| eve0415/cella A terminal-native devcontainer CLI built for the AI agent era. Drop-in devcontainer CLI re | 7 | Claude Code, Codex, OpenCode | 8 | 1,770 tok |
| gingugu/gingugu A pirate never forgets where the treasure's buried. 🏴☠️ | 7 | Claude Code, Codex, OpenCode | 34 | 9,215 tok |
| rmyndharis/aimhooman aimhooman teaches coding agents Git etiquette—keeping agent memory, internal instructions, | 7 | Codex, GitHub Copilot, Gemini CLI, Kiro, OpenCode | 4 | 3,415 tok |
| dirnbauer/typo3-skills 61 Agent Skills that teach Claude Code, Codex, Cursor and Gemini how to build, upgrade and | 7 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode, Windsurf | 5 | 6,893 tok |
| wonna-fi/saaga | 7 | Claude Code, Codex, OpenCode | 2 | 420 tok |
| vikrantd/TLDRGraph vikrantd.github.io Dynamic Multi-Layer Code Flow, Instant Semantic Call Tracing, and Interactive Architectura | 7 | Claude Code, Codex, OpenCode | 4 | 352 tok |
| sanity-io/context sanity.io Tools for building AI agents with structured access to Sanity content | 7 | Claude Code, Codex, OpenCode | 2 | 1,306 tok |
| sandraschi/dreame-mcp FastMCP 3.1 MCP server and webapp for the Dreame D20 Pro Plus robot vacuum. | 7 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 6 | 759 tok |
| Euclid-BG/Euclid-MCP euclid-bg.github.io Euclid-MCP server for logical reasoning: turns facts into formal proofs. Euclid-MCP is a h | 7 | Codex, OpenCode | 1 | 2,525 tok |
| specdog/dotdog specdog.github.io CLI tool for structured software specs. Validate .dog files, compile .dag graphs, query vi | 7 | Claude Code, Codex, OpenCode | 2 | 991 tok |
| howdeploy/remorafish Agent-first Web2API and MCP provider framework for authorized LLM web sessions | 7 | Codex, OpenCode | 1 | 795 tok |
| weselow/Yandex-webmaster-mcp-server MCP server for the Yandex Webmaster API v4 — provides 46 tools for managing sites, sitemap | 7 | Claude Code, Codex, OpenCode | 21 | 2,632 tok |
| gelse/caldav-mcp An MCP server that bridges AI assistants to CalDAV calendars. 14 tools for listing, creati | 7 | Codex, OpenCode | 1 | 2,217 tok |
| serpro69/pal-mcp-server The power of ClaudeCode / AntigravityCLI / CodexCLI + [Gemini / OpenAI / OpenRouter / Azur | 7 | Claude Code, Codex, OpenCode | 3 | 2,942 tok |
| ADIKANT/datalens-dev-mcp Local stdio MCP server for safe AI-assisted Yandex DataLens dashboard development. | 7 | Codex, OpenCode | 1 | 630 tok |
| cyanheads/hn-mcp-server npmjs.com Browse Hacker News feeds, threads, and user profiles with full-text search via MCP. STDIO | 7 | Claude Code, Codex, OpenCode | 2 | 16,320 tok |
| fastslack/mtw-e2e-runner JSON-driven E2E test runner with parallel execution, Chrome pool, and Claude Code MCP inte | 7 | Claude Code, OpenCode | 5 | 2,828 tok |
| ddmanyes/second-brain-mcp A self-maintaining personal knowledge database — powered by MCP, DuckDB, and biological me | 7 | Claude Code, Codex, OpenCode | 2 | 7,375 tok |
| zelentsov-dev/apple-ads-mcp Local-first MCP server for Apple Ads Platform API v1 with typed, receipt-gated campaign op | 7 | Claude Code, Codex, OpenCode | 2 | 499 tok |
| yongjip/mergetrain yongjip.github.io Local merge queue for parallel LLM agents in Git worktrees. Test combined code changes, re | 7 | Claude Code, Codex, OpenCode | 3 | 2,781 tok |
| bird-chinese-community/BIRD.skills BIRDCC agent skills registry | 7 | Codex, OpenCode | 1 | 1,795 tok |
| Mohamed-El-Sharqawy/agent-tutor The agent-agnostic AI tutor skill that writes into your Obsidian vault — works with Claude | 7 | Codex, OpenCode | 1 | 1,043 tok |
| ArchSightLabs/archsight-cognition npmjs.com Cognitive enhancement AI Skills: structured thinking, decision reviews, debate, writing, p | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,557 tok |