22,145 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 agents7,571Claude Code6,627Data and AI3,684Backend and APIs3,492Languages3,401Planning3,221Git and workflow3,179Code review2,740Testing2,368Memory and context2,365Writing and docs2,309DevOps and cloud2,308Research2,298Frontend2,256Security2,015Productivity1,715
All Claude Code31,984 Codex23,196 OpenCode22,145 GitHub Copilot3,551 Gemini CLI1,917 Cursor1,736 Windsurf133 Kiro79
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| Gracker/Perfetto-Skills Portable Agent Skill for evidence-based Android, Linux, and Chromium Perfetto analysis. | 26 | Codex, OpenCode | 1 | 659 tok |
| antongulin/robin robinreview.dev Free AI code reviews on every pull request. Bring your own key (OpenRouter free tier works | 26 | Codex, OpenCode | 1 | 782 tok |
| slopus/happy-agent happy.engineering Universal Agent Harness from Happy that works with any subscription | 26 | Claude Code, Codex, OpenCode | 4 | 6,509 tok |
| samsantosb/ship-it ship-it - an idea-to-merged-PR delivery pipeline for any coding agent (Claude Code, Kiro, | 26 | Claude Code, Codex, OpenCode | 1 | 973 tok |
| hhtttttiger/AgentLabKit AgentLabKit — a full-stack enterprise solution for multi-agent systems, deterministic work | 26 | Claude Code, Codex, OpenCode | 2 | 748 tok |
| chrizbo/agentics-beyond-code Agentic Workflows for PMs, ops, compliance, and other non-engineering roles | 26 | Claude Code, Codex, OpenCode | 5 | 277 tok |
| zhumengzhu/opencode-cache-hit OpenCode sidebar plugin for cache hit rate, token usage, and session cost—with sub-agent ( | 26 | Codex, OpenCode | 1 | 1,686 tok |
| Italian-Builders-Org/magistra Open-source Italian legal platform | 26 | Claude Code, Codex, OpenCode | 3 | 1,925 tok |
| ArnaudGuiovanna/tutor-mcp tutor-mcp.dev An open-source MCP server that turns any LLM into an Intelligent Tutoring System. 50 years | 26 | Codex, OpenCode | 1 | 453 tok |
| Sistema2D/FrameCode-VibeWork Document framework for AI-assisted development (vibe coding), with governance, traceabilit | 26 | Codex, Cursor, OpenCode | 2 | 1,596 tok |
| hong-kailin/OpenCodeFromScratch A line-by-line recreation of the open-source AI coding agent opencode, evolving from a min | 26 | Codex, OpenCode | 1 | 3,661 tok |
| ymm-oss/fsl AI-Native Formal Specification Language — a bounded model checker (Lark + Z3) built for LL | 26 | Claude Code, Codex, OpenCode | 17 | 4,322 tok |
| ningzimu/awesome-skills Curated collection of useful AI agent skills | 26 | Claude Code, Codex, OpenCode | 2 | 174 tok |
| sandraschi/freecad-mcp FreeCAD 3D CAD automation via FastMCP — headless document/export plus FluidX3D/OpenFOAM CF | 26 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 6 | 1,715 tok |
| trailofbits/codex-config | 26 | Codex, OpenCode | 8 | 1,909 tok |
| brightwave-inc/tidebreak tidebreak.io Open-source, local-first desktop for AI coding agents and document work. Run Claude Code, | 26 | Claude Code, Codex, OpenCode | 2 | 1,147 tok |
| openschool-org/openschool openschool-org.github.io Open digital platform for Sri Lankan schools. | 26 | Claude Code, Codex, OpenCode | 2 | 1,799 tok |
| geebos/v2ex-stats V2EX coin earnings visualization extension — makes your V2EX coin earnings easy to underst | 26 | Claude Code, Codex, OpenCode | 2 | 74 tok |
| jmanhype/speckit Specification-Driven Development with Beads Integration - A comprehensive workflow system | 26 | Claude Code, Codex, OpenCode | 33 | 8,372 tok |
| dyeoman2/tanstack-start-template tanstack-start-convex.netlify.app TanStack Start template with Convex real-time DB, BetterAuth, Tailwind, ShadcnUI, AI playg | 26 | Claude Code, Codex, OpenCode | 2 | 2,689 tok |
| yungwood/ical-filter-proxy yungwood.github.io iCal proxy with support for user-defined filtering rules | 26 | Codex, OpenCode | 1 | 523 tok |
| myyimu/codex-session-transfer Local-first desktop utility for exporting, importing, syncing, and restoring Codex task an | 26 | Codex, OpenCode | 1 | 1,248 tok |
| cyberAlchemyAI/Arcanum A repository of Sigils: standardized modules for agentic intelligence and system automatio | 25 | Claude Code, Codex, GitHub Copilot, OpenCode | 70 | 527 tok |
| davidmigloz/ai_clients_dart A collection of Dart client libraries for popular AI APIs. Provides type-safe, well-docume | 25 | Claude Code, Codex, OpenCode | 4 | 1,181 tok |
| hairyf/skills Hairy's curated collection of agent skills. | 25 | Codex, OpenCode | 1 | 2,469 tok |
| robertsfeir/atelier-pipeline Multi-agent orchestration plugin for Claude Code — 10 specialized agents, persistent Brain | 25 | Claude Code, Codex, OpenCode | 11 | 1,801 tok |
| sgroy10/speclock sgroy10.github.io Action guardrails for AI coding agents — native Claude Code enforcement, MCP integrations, | 25 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 6,035 tok |
| LeeYudok/agents-scaffold leeyudok.github.io Fork-and-fill bootstrap for AI coding agents (Claude Code first, Codex/Gemini via AGENTS.m | 25 | Claude Code, Codex, Gemini CLI, OpenCode | 7 | 2,213 tok |
| myclaude-sh/myclaude-creator-engine myclaude.sh The creation pipeline for Claude Code products — research, create, validate, publish. 13 t | 25 | Claude Code, Codex, OpenCode | 2 | 4,416 tok |
| raintree-technology/docpull raintree.technology Local-first Python CLI and MCP server for versioned, cited context from web and document s | 25 | Codex, OpenCode | 1 | 159 tok |
| wenet-ec/edge-core Self-hostable Linux and edge fleet-management platform — operate machines behind NAT and f | 25 | Claude Code, Codex, OpenCode | 2 | 5,922 tok |
| internetworklab/cloudping ping2.sh Simple web-based ping & traceroute | 25 | Claude Code, Codex, OpenCode | 2 | 769 tok |
| Teamwork/mcp mcp.ai.teamwork.com Teamwork.com MCP server | 25 | Claude Code, Codex, OpenCode | 3 | 21,116 tok |
| barvhaim/HoneyMCP A Deception Security Layer for MCP Servers. It injects "ghost tools" (fake security-sensit | 25 | Claude Code, Codex, OpenCode | 2 | 4,918 tok |
| MachineWisdomAI/fava-trails fava-trails.org 🫛👣 FAVA Trails — Git-native, curated memory for AI agents via MCP. Draft isolation, prom | 25 | Claude Code, Codex, OpenCode | 2 | 4,120 tok |
| kdcube/kdcube kdcube.tech Open-source, self-hosted runtime and SDK for AI applications. One tenant/project deploymen | 25 | Codex, OpenCode | 1 | 2,434 tok |
| youdotcom-oss/dx-toolkit Open-source toolkit enabling developers to integrate You.com's AI capabilities into their | 25 | Claude Code, Codex, OpenCode | 4 | 1,319 tok |
| jim-at-jibba/nvim-stride | 25 | Claude Code, Codex, OpenCode | 4 | 1,424 tok |
| howells/arc usearc.vercel.app Agent workflow plugin for Claude Code and Codex that takes projects from idea to reviewed, | 25 | Claude Code, Codex, OpenCode | 2 | 1,116 tok |
| vlad-ryzhkov/AI-QA-workshop-feb19 youtu.be AI prompts, agents, and anti-patterns for QA — from specification audits to API test gener | 25 | Claude Code, Codex, GitHub Copilot, OpenCode | 21 | 2,657 tok |
| aktsmm/vscode-agent-skill-ninja VS Code Extension for searching, installing and managing Agent Skills (SKILL.md) for GitHu | 25 | Codex, GitHub Copilot, OpenCode | 4 | 8,000 tok |
| vallafederico/webflow-dev-setup webflow-dev-setup-xi.vercel.app | 25 | Claude Code, Codex, OpenCode | 7 | 508 tok |
| prompt-templates/-Legacy-ai-session-governance [Legacy] Harness engineering for AI session continuity — cross-tool handoff governance for | 25 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 20,346 tok |
| jiaiyan/element-plus-skills skills.sh A comprehensive skill library for Element Plus UI framework, designed for AI agents to und | 25 | Codex, OpenCode | 1 | 10,686 tok |
| basicmachines-co/basic-memory-skills Skills for AI memory management — reflection, defragmentation, and more | 25 | Claude Code, Codex, OpenCode | 2 | 586 tok |
| michoelchaikin/awesome-netsuite-ai A curated list of awesome NetSuite AI resources, tools, articles, and community contributi | 25 | Codex, GitHub Copilot, OpenCode | 2 | 1,693 tok |
| dipseth/google_workspace_fastmcp2 FastMCP2 server for Google Drive uploads with Qdrant-powered semantic search | 25 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 5 | 5,766 tok |
| lynx-community/skills lynxjs.org A collection of Agent Skills for Lynx | 25 | Codex, OpenCode | 1 | 83 tok |
| chenweil/skillcaddy skillcaddy.51ai.vip Local AI Skills central library with per-project symlink enablement. One AISkills folder | 25 | Codex, OpenCode | 1 | 100 tok |
| BankrBot/tokenized-agents | 25 | Codex, OpenCode | 1 | 1,200 tok |