44,996 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 agents8,544Claude Code6,892Git and workflow3,622Data and AI3,580Backend and APIs3,558Languages3,492Planning3,321Code review2,907Testing2,690DevOps and cloud2,489Writing and docs2,484Memory and context2,374Research2,321Frontend2,311Security2,178Project management1,971
All Claude Code32,539 Codex24,879 OpenCode23,799 GitHub Copilot3,723 Gemini CLI2,040 Cursor1,772 Windsurf202 Kiro116
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| jrjsmrtn/tlx A Spark DSL for writing TLA+/PlusCal specifications in Elixir | 13 | Claude Code, Codex, OpenCode | 3 | 3,423 tok |
| mathruffian-dot/taigi-teaching-agent Taiwanese-language teaching materials AI Agent: automatically generates Taiwanese lesson p | 13 | Claude Code, Codex, OpenCode | 2 | 5,606 tok |
| ActiveInferenceInstitute/courses Open curriculum for Active Inference education, K-12 through PhD, with 14 level-adapted co | 13 | Claude Code, Codex, OpenCode | 3 | 2,309 tok |
| arhen/agents My virtual Pair Programmer | 13 | Codex, OpenCode | 1 | 1,857 tok |
| ardhaecosystem/fable-method The Fable Method: a structured problem-solving loop that gives any model Fable 5 grade thi | 13 | Codex, OpenCode | 1 | 1,942 tok |
| strelov1/spec-driven-tdd Multi-harness skill-pack fusing OpenSpec planning with Superpowers TDD/simplify/review int | 13 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 363 tok |
| thelocalhoststudio/patrika A notebook-inspired personal publishing theme built with Astro | 13 | Claude Code, Codex, OpenCode | 2 | 1,519 tok |
| forketyfork/walkthrough-plugin | 13 | Claude Code, Codex, OpenCode | 2 | 1,629 tok |
| marin-community/loom Issue tracking for AI coding agents | 13 | Codex, OpenCode | 1 | 1,674 tok |
| tig/silico Silico makes building maintainable firmware for embedded devices simple using AI. | 13 | Claude Code, Codex, OpenCode | 2 | 23,252 tok |
| 82deutschmark/arc-explainer arc.markbarney.net ARC-AGI Prize Explainer (Includes ARC-AGI-3!) | 13 | Claude Code, Codex, OpenCode | 11 | 12,635 tok |
| wusaki0723/memory-template Portable GitHub memory vault template for Claude and AI assistants | 13 | Claude Code | 8 | 558 tok |
| adamfaik/claude-code-pm-starter A ready-to-use Claude Code workspace for product managers: folders, context templates, and | 13 | Claude Code | 1 | 166 tok |
| pwittchen/aictl aictl.app 🤖 Native AI agent for your terminal and macOS desktop. Run cloud and local models thr | 13 | Claude Code | 1 | 9,920 tok |
| ao92265/claude-code-playbook Battle-tested Claude Code best practices, skills, hooks, and configuration templates | 13 | Claude Code | 1 | 133 tok |
| Treasoni/kaoyan An intelligent graduate entrance exam study system built with Claude Code, integrating the | 13 | Claude Code, Codex, OpenCode | 2 | 6,532 tok |
| maxmilian/markout A modern, native macOS Markdown editor for Apple Silicon — the spiritual successor to MacD | 13 | Claude Code | 1 | 1,401 tok |
| LuisFelipeMoro/Harness-devkit Harness Devkit for agentic development | 13 | Claude Code, Codex, OpenCode | 2 | 802 tok |
| ryanbenson/wuthering-waves-optimizer wutheringtools.com Optimizer for your resonators and weapons and echoes | 13 | Claude Code | 6 | 1,762 tok |
| tradermonty/claude-trading-agent Sample AI agent built on Claude Managed Agents — Streamlit chat UI with 10 trading analysi | 13 | Claude Code | 2 | 1,024 tok |
| skills-il/developer-tools AI agent development utilities with Israeli adaptations | 13 | Claude Code | 1 | 451 tok |
| arjun1194/insta-mcp Instagram MCP Server - Provides AI assistants with tools for Instagram analytics, insights | 13 | Gemini CLI | 1 | 635 tok |
| skills-il/accounting AI agent skills for Israeli accounting, bookkeeping, and financial management | 13 | Claude Code | 1 | 460 tok |
| humblebanana/dsh-record-replay DeepSeek Harness record macOS desktop workflows by demonstration and turn them into agent | 13 | Codex, OpenCode | 1 | 273 tok |
| KimPlaybit/Starcraft-2-Editor-Skills A plug-and-play Copilot skillset for SC2 map makers — specialized agents covering Galaxy s | 13 | Claude Code | 32 | — |
| YawLabs/caddy-mcp yaw.sh Caddy admin API MCP server, complete coverage of config, routes, reverse proxies, TLS, PKI | 13 | Claude Code | 1 | 2,435 tok |
| tangivis/twitter-mcp tangivis.github.io | 13 | Claude Code | 1 | 1,543 tok |
| 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 |
| timwukp/agent-skills-best-practice 35 portable agent skills (Agent Skills spec) for Kiro & Claude Code: Scrum DevSecOps roles | 13 | Kiro | 4 | 1,744 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 |
| PhAlves23/prompt-engineering-skill promptcause.com Prompt Engineering skill for Claude Code — rewrites and optimizes prompts using proven tec | 13 | Gemini CLI | 1 | 1,067 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 | 14,092 tok |
| starloghq/index starlog.dev Vet a package before your AI coding agent uses it — authoritative facts (CVEs, license, ma | 13 | Codex, GitHub Copilot, OpenCode | 2 | 172 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 |
| joshrotenberg/tower-mcp docs.rs Tower-native Model Context Protocol (MCP) implementation | 13 | Codex, OpenCode | 1 | 402 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 |
| Qovery/qovery-skills AI agent skills for deploying applications to Kubernetes with Qovery. Works with OpenCode, | 13 | Claude Code | 1 | 1,880 tok |