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 |
|---|---|---|---|---|
| slok/gosimov Simple AI agent library in go (general usage but focused on infra/platform tooling automat | 10 | Codex, OpenCode | 1 | 28 tok |
| nishantdesai/codex-history Read-only CLI for searching, inspecting, and exporting entire local Codex session history. | 10 | Codex, OpenCode | 1 | 500 tok |
| SoftwareSavants/verun verun.dev Parallel Claude Code Agent Orchestrator for macOS | 10 | Claude Code, Codex, OpenCode | 5 | 1,152 tok |
| Kevin-Liu-01/Sigil-UI sigil-ui-web.vercel.app Opinionated design language + token-driven React components. 31 presets, 70+ components, o | 10 | Codex, OpenCode | 1 | 5,549 tok |
| kongsol-83/boardgame-studio An AI board game design studio for Cursor. Turn a one-line idea into BGG reference researc | 10 | Codex, Cursor, OpenCode | 9 | 3,092 tok |
| badsectorlabs/ludus-skills docs.ludus.cloud [GITLAB MIRROR] AI agent skills Ludus cyber ranges | 10 | Claude Code, Codex, OpenCode | 3 | 926 tok |
| cinicu/opencode-dotfiles OpenCode dotfiles — 19 AI agent skills + 8 MCP servers + persistent memory (memory-keeper) | 10 | Codex, OpenCode | 1 | 218 tok |
| lmammino/agent-review-skills Agent skills that facilitate having agents do code reviews on open PRs and the main coding | 10 | Codex, OpenCode | 1 | 342 tok |
| Sarthib7/agentsmith sarthib7.github.io Rules, workflows, harness configuration, and skills for agentic engineering. | 10 | Codex, OpenCode | 1 | 343 tok |
| 224-Industries/webflow-skills 224industries.com.au Webflow Agent Skills by 224 Industries | 10 | Claude Code, Codex, OpenCode | 2 | 914 tok |
| yehyakin/hermes-skills Hermes Agent Skills - A collection of skills for e-commerce livestreaming (competitor anal | 10 | Claude Code, Codex, OpenCode | 2 | 287 tok |
| quzhi1/HistoryAgentSkills Use Agent Skills to search history source and answer questions | 10 | Claude Code, Codex, OpenCode | 4 | 1,363 tok |
| mayor-modder/Cities2-MCP MCP and agent skills for Cities: Skylines II knowledge and mod project workflows. | 10 | Codex, OpenCode | 1 | 1,169 tok |
| bncc-dev/bncc-pacotes bncc.dev Pacotes bncc (npm/PyPI) e servidor MCP: o dataset bncc-dados consumível em uma linha | 10 | Codex, OpenCode | 1 | 1,042 tok |
| sjarmak/agent-workflows Superseded by coding-agent-workflows. Twenty-one experimental multi-agent workflow skills | 10 | Claude Code, Codex, OpenCode | 2 | 1,005 tok |
| v833/q-code q-code.wq1115.com A command-line Agent framework based on the AI SDK, supporting tool calling, Plan Mode, pe | 10 | Codex, OpenCode | 1 | 10,314 tok |
| Roxabi/roxabi-plugins Open-source Claude Code plugins by Roxabi — context engineering tools for teams using Clau | 10 | Claude Code, Codex, OpenCode | 3 | 1,287 tok |
| yunfeizhu/TDesign-Vue-Next-Skill AI agent skill for TDesign Vue Next - comprehensive guidance for component usage, forms, t | 10 | Codex, OpenCode | 1 | 938 tok |
| smithersai/webui smithers.sh A skill + CLI that lets agents render React + MDX in a browser window — for plans, diffs, | 10 | Codex, OpenCode | 1 | 828 tok |
| techtalk/ai-readiness-assessment techtalk.github.io A self-contained Claude Code & GitHub Copilot plugin that assesses a team's AI readiness a | 10 | Codex, GitHub Copilot, OpenCode | 2 | 2,900 tok |
| trayio/tray-plugins Tray Headless — the full Tray platform, in your AI IDE. Official Tray.ai plugins for Claud | 10 | Codex, OpenCode | 1 | 831 tok |
| quangdang46/uefn-verse-mcp MCP bridge for Unreal Editor for Fortnite that lets Claude Code, Cursor, and other MCP cli | 10 | Claude Code, Codex, OpenCode | 2 | 595 tok |
| karimodm/angrMCP LLMs that break your binaries apart. MCP for angr framework. | 10 | Codex, OpenCode | 1 | 1,569 tok |
| physics91/openrouter-mcp A Model Context Protocol (MCP) server for OpenRouter API - Access 100+ AI models through a | 10 | Claude Code, Codex, OpenCode | 6 | 1,088 tok |
| fahmidme/nano-banana-mcp | 10 | Codex, OpenCode | 1 | 653 tok |
| yfe404/proxy-mcp MCP server that runs an explicit HTTP/HTTPS MITM proxy | 10 | Codex, OpenCode | 1 | 135 tok |
| alphaplapplap/mcp-memory-service Universal Memory Service implementing MCP for AI assistants - supports Claude Code, Claude | 10 | Claude Code, Codex, OpenCode | 2 | 4,757 tok |
| Loctree/loctree loct.io Structural code intelligence for AI agents. Scan once, query everything — dead exports, ci | 10 | Codex, GitHub Copilot, OpenCode | 2 | 1,731 tok |
| henryiii/skills Some agent skills that are useful for coding. | 10 | Codex, OpenCode | 1 | 381 tok |
| alexsmirnov/obsidian-second-brain-mcp | 10 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 286 tok |
| OrderlyNetwork/orderly-mcp | 10 | Codex, OpenCode | 1 | 7,283 tok |
| whenpoem/aiscientist An AI-driven research workflow for generating ideas, running experiments, and writing scie | 10 | Claude Code, Codex, OpenCode | 6 | 1,865 tok |
| twominutereports/marketing-skills Claude Marketing Skills for SEO, PPC, and ecommerce reporting, analysis, and automation vi | 10 | Claude Code, Codex, OpenCode | 2 | 1,185 tok |
| EricSanchezok/repo-seed Seed agent-native, self-governing repos: AGENTS.md, MADR decision logs, deterministic gate | 10 | Claude Code, Codex, OpenCode | 2 | 1,047 tok |
| hamza-ali-shahjahan/hamzaish hamzaish.com Open-source agent OS for Claude Code that puts you in Builder Mode — and keeps you there f | 10 | Claude Code, Codex, OpenCode | 5 | 10,643 tok |
| imboard-ai/ai-dossier ai-dossier.dev An open standard for signed, versioned agent skills. Model-driven orchestration with a det | 10 | Claude Code, Codex, OpenCode | 2 | 941 tok |
| Utolaris/Stata-CLI Stata CLI for AI agents and coding agents (Codex, Claude Code, Cursor, OpenCode). Run Stat | 10 | Codex, OpenCode | 1 | 559 tok |
| ZachArticulateV/designer-pro-and-seo Free MIT Claude Code plugin for the web-design + SEO workflow: design systems, on-brand pa | 10 | Claude Code, Codex, OpenCode | 2 | 3,848 tok |
| YuliaNuzhnenko/bioinformatics-agent-skills The #1 open-source collection of scientific AI Agent Skills, tool specifications, and prom | 10 | Claude Code, Codex, OpenCode | 2 | 435 tok |
| frankxai/Starlight-Intelligence-System starlightintelligence.org One shared brain for your whole AI fleet: attested memory, orchestration, governance and e | 10 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 9 | 14,794 tok |
| Avyayalaya/agent-prime avyayalaya.github.io A persistent AI operating system. 13 specialized agents + a runtime-portable 5-agent quali | 10 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 12,325 tok |
| HieuAnh87/sentry-selfhosted-mcp hieuanh87.github.io MCP server for self-hosted Sentry: issues, events, releases, users, org stats, and project | 10 | Claude Code, Codex, OpenCode | 2 | 826 tok |
| dorukardahan/twitterapi-io-mcp npmjs.com TwitterAPI.io MCP server: offline docs (endpoints, pages, blogs) for Claude and other AI a | 10 | Claude Code, Codex, OpenCode | 2 | 1,493 tok |
| Elnora-AI/elnora-merit-aktiva Merit Aktiva accounting + Merit Palk payroll API — CLI and Claude Code plugin. Universal, | 10 | Codex, OpenCode | 1 | 1,006 tok |
| flyfish-dev/word-ai AGPL-licensed structure-preserving Word (DOCX) editing MCP server, Codex Skill, and Office | 10 | Codex, OpenCode | 1 | 823 tok |
| Lexus2016/turbo_quant_memory Local-first MCP memory server for AI coding agents with compact retrieval and project/glob | 10 | Claude Code, Codex, OpenCode | 2 | 1,656 tok |
| piprail/piprail piprail.com x402 (HTTP 402 Payment Required) SDK + MCP server: let any API charge for itself and any A | 10 | Claude Code, Codex, OpenCode | 14 | 9,646 tok |
| noahain/Monoloth noahain.xyz Agent-agnostic desktop shell for CLI coding tools | 10 | Codex, OpenCode | 1 | 3,574 tok |
| PedroMosquera/squadai The agent config you can verify. Declare it once, apply it to seven agent harnesses, fail | 10 | Claude Code, Codex, GitHub Copilot, OpenCode | 41 | 893 tok |
| OmicoDev/skills | 10 | Claude Code, Codex, OpenCode | 2 | 138 tok |