32,552 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 agents8,564Claude Code6,906Git and workflow3,633Data and AI3,578Backend and APIs3,558Languages3,494Planning3,322Code review2,906Testing2,695DevOps and cloud2,496Writing and docs2,489Memory and context2,375Research2,320Frontend2,312Security2,181Project management1,980
All Claude Code32,552 Codex24,920 OpenCode23,840 GitHub Copilot3,723 Gemini CLI2,039 Cursor1,771 Windsurf202 Kiro117
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| theisegoria/game-development-studio Local-first game asset production, vendoring, visual debugging, and performance tooling fo | 13 | Claude Code | 1 | 1,051 tok |
| femto/mcp-chrome mcp-chrome | 13 | Claude Code, Codex, OpenCode | 8 | 250 tok |
| alejooroncoy/campus-cli campuscli.com CLI no oficial para UPC Aula Virtual (Blackboard Learn) — terminal + MCP para Claude | 13 | Claude Code, Codex, OpenCode | 5 | 4,345 tok |
| Frihet-io/frihet-mcp frihet.io Official MCP server for Frihet ERP — 156 operations for AI-powered invoicing, tax & e-invo | 13 | Claude Code, Codex, OpenCode | 2 | 1,985 tok |
| tidymodels/skills skills.tidymodels.org Claude Code Skills for Tidymodels | 13 | Claude Code | 2 | — |
| tonydzi/claude-bible tonydzi.github.io Make Claude Code behave consistently across repos, sessions and humans: rules-as-files gov | 13 | Claude Code, Codex, OpenCode | 2 | 869 tok |
| Postpartum-genushyacinthus29/dotnet-skills Teach AI agents modern .NET skills for ASP.NET Core, EF, Blazor, MAUI, and more with a gro | 13 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 9,378 tok |
| fnrhombus/winforms-mcp | 13 | Claude Code | 2 | 4,147 tok |
| qinnovates/quorum qinnovate.com Quorum: orchestrate a swarm of AI experts on any question. Specialists debate, research, a | 13 | Claude Code | 2 | — |
| NullSpace-BitCradle/ats-resume-agent Claude Code agents that tailor ATS-friendly LaTeX resumes and cover letters to a job descr | 13 | Claude Code | 1 | 582 tok |
| mussolene/1c_hbk_bsl mussolene.github.io Open-source toolkit for 1C:Enterprise/BSL: 180 diagnostics, formatter, LSP, CLI, VS Code/C | 13 | Claude Code, Codex, OpenCode | 2 | 295 tok |
| cyanheads/pubchem-mcp-server npmjs.com Search the PubChem chemical database for compounds, properties, safety data, bioactivity, | 13 | Claude Code, Codex, OpenCode | 2 | 14,140 tok |
| jamiew/spotify-mcp jamiew.github.io Modern MCP to connect AI agents like Claude to Spotify. This fork is token-efficient, impl | 13 | Claude Code | 2 | 3,386 tok |
| brandonwie/codex-hud brandonwie.github.io Single-line local context HUD for Codex CLI sessions. | 13 | Claude Code, Codex, OpenCode | 2 | 187 tok |
| andyhtran/CopyCat Open-source macOS menu bar utility — press ⌘V to paste screenshots into your terminal. Cop | 13 | Claude Code | 1 | 232 tok |
| pskoett/measuring-ai-proficiency Measuring AI Proficiency: Context Engineering as a Leading Indicator | 13 | Claude Code, Codex, GitHub Copilot, OpenCode | 19 | 9,401 tok |
| Szesnasty/Jarvis Local-first knowledge system that turns notes, files, and AI chats into durable memory. | 13 | Claude Code | 13 | 5,025 tok |
| dangindev/antigravity-awesome-workspace-skill | 13 | Claude Code, Codex, Kiro, OpenCode | 66 | 387 tok |
| notnotype/llmlint Lint and polish LLM-generated Chinese text: locate AI writing tells with rules, fix them w | 13 | Claude Code, Codex, OpenCode | 2 | 4,736 tok |
| stevenn/ctxlayer Context-sharing MCP Gateway on Cloudflare | 13 | Claude Code, Codex, OpenCode | 8 | 6,858 tok |
| patrickdappollonio/claude-plugins My collection of Claude (and other AI's) skills, plugins, MCP servers, and more. | 13 | Claude Code, Codex, OpenCode | 2 | 4,611 tok |
| Legorobotdude/yt-analysis-mcp MCP server for YouTube video analysis using Gemini API | 13 | Claude Code | 1 | 741 tok |
| PLA-yi/Social-Media-Scraper-Skills Agent skills for the Social Media Scraper project (Douyin, TikTok, Reddit, YouTube, X) | 13 | Claude Code | 1 | 679 tok |
| aoreshkov/kotlin-lib-mcp MCP server: gives your AI agent the real sources, public API and KDoc of any Maven/Gradle- | 13 | Claude Code | 14 | 1,530 tok |
| deevus/tea-skills Agent skills for Gitea/Forgejo issue, pull request, milestone, and label workflows using t | 13 | Claude Code, Codex, OpenCode | 2 | 993 tok |
| XAGI-Lab/melra xagilab.com Open-source local MCP runtime that checks AI-agent tool calls, gates risky actions on appr | 13 | Claude Code | 1 | 5,377 tok |
| goadesign/goa-ai goa.design Design-first agentic systems in Go: declare agents, tools, MCP servers, policies, and stru | 13 | Claude Code, Codex, OpenCode | 2 | 3,159 tok |
| karbassi/mcp-loom modelcontextprotocol.io MCP server exposing 58 tools for Loom's GraphQL API. Works with Claude, Cursor, or any MCP | 13 | Claude Code | 1 | 93 tok |
| lozit/mcp-standardnotes MCP server for Standard Notes with end-to-end encryption (protocol 004). Read/write notes | 13 | Claude Code | 2 | 1,487 tok |
| Jason-Vaughan/TangleClaw tangle-claw.vercel.app An open-source, local-first AI-native SDLC orchestration platform | 13 | Claude Code | 2 | 11,715 tok |
| wezendy/elon-musk-algorithm-skills Elon Musk's 5-step algorithm as skills for AI agents. | 13 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 2,190 tok |
| YosefHayim/launch-store npmjs.com Self-hosted EAS alternative that builds, signs, and ships Expo/React Native apps to the Ap | 13 | Claude Code, Codex, OpenCode | 5 | 2,173 tok |
| eugeniughelbur/agents-md eugeniughelbur.github.io Generate and safely maintain AGENTS.md, the cross-tool standard for AI coding agents. Non- | 13 | Claude Code, Codex, OpenCode | 2 | 1,029 tok |
| gui-wf/purelymail-mcp-server MCP Server for PurelyMail email service API | 13 | Claude Code | 3 | 2,138 tok |
| synaptixs/spine test.pypi.org Spine — governed, provenance-grounded autonomous software delivery (installs as agent-orch | 13 | Claude Code | 1 | 2,925 tok |
| conorbronsdon/gws-mcp-server conorbronsdon.com Curated MCP server for Google Workspace: Gmail, Calendar, Drive, Sheets, Docs, and Tasks v | 13 | Claude Code, Codex, OpenCode | 2 | 991 tok |
| nijosmsft/etw-mcp MCP server for analyzing Windows ETW (.etl) traces — xperf / native ETW / .NET sidecar + W | 13 | Claude Code | 1 | 4,145 tok |
| narumiruna/gurume narumiruna.github.io Python CLI, TUI, and MCP server for searching Japanese restaurants on Tabelog | 13 | Claude Code, Codex, OpenCode | 2 | 1,035 tok |
| denfry/codebase-index Local code map for AI coding agents: find, trace, and predict change impact with file:line | 13 | Claude Code, Codex, OpenCode | 4 | 677 tok |
| peakflames/claude-plugins-peakflames Claude Code plugins by PeakFlames — epic-workflow lifecycle skills | 13 | Claude Code | 1 | 1,584 tok |
| turbopuffer/skills | 13 | Claude Code | 1 | 466 tok |
| BluesPrince/thiri-mcp mcp.thiri.ai Deterministic music-theory MCP server & API — chord analysis, Roman-numeral analysis, voic | 13 | Claude Code, Codex, OpenCode | 2 | 181 tok |
| andyhtran/deepwiki-by-cc Self-hosted, open-source DeepWiki alternative — agentic wiki generator for any GitHub repo | 13 | Claude Code | 1 | 198 tok |
| cocaxcode/api-testing-mcp npmjs.com The most complete MCP server for API testing. 27 tools: requests, assertions, flows, OpenA | 13 | Claude Code | 1 | 980 tok |
| AnojSKunte/career-ops-india AI job search for India — scan 196 companies, evaluate fit, generate tailored CVs. Works w | 13 | Claude Code, Gemini CLI | 14 | 1,156 tok |
| suryast/indonesia-civic-stack 🇮🇩 Production-ready Python SDK + MCP server for 14 Indonesian government data sources — | 13 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 4 | 3,032 tok |
| dabodamjan/poster-maker dabo.dev AI flyer and poster generator for Claude Code. Describe a design, get editable HTML/CSS, e | 13 | Claude Code | 5 | 1,657 tok |
| vanterx/mssql-performance-skills SQL Server performance tuning skills for LLMs — 829 checks across 26 skills covering T-SQL | 13 | Claude Code, Codex, OpenCode | 6 | 15,260 tok |
| JeffBrines/openfpa guiderail.io The FP&A toolbelt for AI coding agents. Claude Code or Codex does the thinking; openfpa gi | 13 | Claude Code, Codex, OpenCode | 2 | 2,383 tok |
| linegel/threejs-complete-set-of-skill linegel.github.io 25 expert agent skills for ambitious Three.js WebGPU/TSL scenes — procedural oceans, cloud | 13 | Claude Code, Codex, OpenCode | 2 | 2,009 tok |