2,016 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 agents8,442Claude Code6,875Data and AI3,584Git and workflow3,574Backend and APIs3,550Languages3,468Planning3,315Code review2,876Testing2,653DevOps and cloud2,462Writing and docs2,461Memory and context2,373Research2,315Frontend2,301Security2,167Project management1,944
All Claude Code32,436 Codex24,692 OpenCode23,614 GitHub Copilot3,700 Gemini CLI2,016 Cursor1,769 Windsurf202 Kiro113
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| yeaight7/agent-powerups Curated power-ups for coding agents: skills, slash commands, MCP configs, hooks, AGENTS.md | 8 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 2,477 tok |
| MidnightDarling/collate Chinese-language literature OCR proofreading and reading pipeline for historical researche | 8 | Claude Code, Codex, Gemini CLI, OpenCode | 2 | 9,613 tok |
| cekura-ai/cekura-skills Claude Plug-Ins & Skills for Cekura | 8 | Claude Code, Gemini CLI | 2 | 16,084 tok |
| clawnify/greybeard Behavioral guidelines for AI coding agents — drop into CLAUDE.md / AGENTS.md to reduce com | 8 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 15,123 tok |
| essentialproject/essential-view-builder-mcp This MCP (Model Context Protocol) server provides tools and resources for building high-qu | 8 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 373 tok |
| TyrusRC/praetor Agentic pentest & red-team harness via Burp Suite MCP toolkit | 8 | Claude Code, Codex, Gemini CLI, OpenCode | 8 | 12,377 tok |
| provasign/prism provasign.dev Semantic change intelligence for coding agents — complete impact sets, edit-ready context, | 8 | Claude Code, Codex, GitHub Copilot, Gemini CLI, Kiro, OpenCode | 12 | 2,274 tok |
| itallstartedwithaidea/gemini-cli-googleadsagent googleadsagent.ai Google Ads commands & AI agent skills for Gemini CLI — analyze campaigns, audit accounts, | 8 | Claude Code, Gemini CLI | 24 | 1,084 tok |
| rajanm/retail-enterprise-agents rajanm.github.io Declarative Google Agent Development Kit (ADK) agents for Gemini Enterprise powered by Big | 8 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 32,811 tok |
| NITISH-R-G/hackerrank-orchestrate-skills hackerrank.com Unofficial community toolkit for HackerRank Orchestrate: 8 agent skills (Claude Code, Code | 8 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 736 tok |
| spacefast/plugins Official Spacefast plugins for AI coding assistants. | 8 | Gemini CLI | 1 | 261 tok |
| FluxonLab/Skillry fluxonlab.com Installable, permission-bounded, multi-platform agent skills & subagents for Claude Code, | 8 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 2,357 tok |
| tambo-labs/charming-mcp usecharming.com Charming MCP server — generate and host interactive web apps via MCP | 8 | Codex, Gemini CLI, OpenCode | 2 | 2,759 tok |
| TheBestCo/bestprice-mcp bestprice.gr Official BestPrice MCP and WebMCP for shopping decisions, product search, offer comparison | 8 | Claude Code, Gemini CLI | 2 | 341 tok |
| OakNinja/MakeMe Makefiles not war | 8 | Gemini CLI | 1 | 390 tok |
| rebel0789/Memory-Recall npmjs.com Local-first repo memory and context for coding agents. | 8 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 1,717 tok |
| supremehui/-Auto-Accounting An AI-powered Android automated expense-tracking tool | 8 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 2,264 tok |
| brambora69123/electrical-age-rewired A port of the classic Minecraft mod. Introducing, Electrical Age: Re-Wired! | 8 | Gemini CLI | 1 | 964 tok |
| Kuniwak/puml-parallel Composing multiple PlantUML state diagrams in parallel with synchronization events | 8 | Claude Code, Codex, Gemini CLI, OpenCode | 4 | 8 tok |
| jleechanorg/agent-orchestrator-ts composio.dev Agentic orchestrator for parallel coding agents — plans tasks, spawns agents, and autonom | 8 | Claude Code, Codex, Gemini CLI, OpenCode | 16 | 11,011 tok |
| SailfinIO/sailfin sfn.dev Self-hosted systems programming langauge with an effect system and compile-time capability | 8 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 42 | 11,248 tok |
| sempods/sempods-kotlin sempods.org sempods reference implementation for the JVM — pod server, identity service, hosted MCP, c | 8 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 6 | 5,174 tok |
| snapsynapse/skill-provenance skillprovenance.dev Version identity and integrity verification for Agent Skills. Tracks versions, detects sta | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 2,382 tok |
| NEXPACE-Limited/msu-skills nexpace-limited.github.io Agent Skills for MapleStory Universe — a SKILL.md catalog for MSU builders. Works with Cla | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 7,957 tok |
| normalled/apijack Generate full-featured CLIs with workflow automation from any OpenAPI spec | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 7,648 tok |
| mzored/superpowers-cc-to-codex Claude orchestrates, Codex executes. Combines Claude's judgment with GPT's speed for codin | 7 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 4,546 tok |
| aplaceforallmystuff/mcp-tailscale MCP server for managing your Tailscale network (tailnet) through Claude Code and other MCP | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 448 tok |
| stevenAthompson/run-long-command stevenathompson.com A Gemini CLI extension that enables the execution of long-running shell commands in the ba | 7 | Gemini CLI | 1 | 571 tok |
| yamaru-eu/hardware-probe yamaru.eu Expert hardware probe for AI, Gaming, and HPC. Analyzes GPU, VRAM, and Memory Bandwidth | 7 | Claude Code, Gemini CLI | 2 | 1,739 tok |
| tellang/triflux npmjs.com CLI-first multi-model orchestrator — routes tasks to Codex, Gemini, and Claude | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 4,376 tok |
| lambda-curry/devagent | 7 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 34 | 421 tok |
| Orpheus-K/symbiopulse SymbioPulse is an MCP-first context layer for AI coding agents. It builds a persistent pro | 7 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 5 | 1,565 tok |
| damien-schneider/agent-skills-library agents-library.dev The centralized hub for AI agent capabilities. Discover, share, and manage high-quality ma | 7 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 5 | 3,309 tok |
| johnnichev/nv-context skills.nichevlabs.com nv:context > Context engineering for engineers who ship. Auto-detects, analyzes, generates | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,235 tok |
| chenmitchell/omg-payment-skill AI Skill for OMG Payment Gateway (Taiwanese third-party payment API with credit card, ATM, | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 6,176 tok |
| dhar174/custom_github_copilot_agent_builder A framework for building customized, optimized custom Github Copilot agents using custom r | 7 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 91 | 92,360 tok |
| widoriezebos/descartes-mcp MCP server for java. Deep introspection and REPL out of the box | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 4 | 2,047 tok |
| teknologika/Deckbuilder MCP Server for building powerpoint presentations | 7 | Claude Code, Gemini CLI | 2 | 4,926 tok |
| gemyago/atlacp Bitbucket MCP server | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 4 | 1,723 tok |
| chrisleekr/mcp-server-playground A playground for Model Context Protocol (MCP) server built with TypeScript and Streamable | 7 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 5 | 2,633 tok |
| ABTdomain/domainkits-mcp domainkits.com Domain intelligence through MCP. Turn Claude, GPT, Gemini into domain agents. Search newly | 7 | Gemini CLI | 1 | 1,463 tok |
| Wolfe-Jam/faf-mcp faf.one Persistent Project Context for Cursor, IDEs and VS Code — IANA-registered .faf format · 29 | 7 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 5 | 2,473 tok |
| smallocean43658/codex-superpowers Codex-first fork of Superpowers skills with Codex-native tool guidance | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,849 tok |
| rootcastleco/rei-skills rootcastleco.github.io The engineering-grade skill layer for AI agents. 895 validated skills, 21 AI adapters, wor | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,969 tok |
| greglas75/zuvo zuvo.dev Auto-activating, multi-agent skill ecosystem for Claude Code, Codex, and Cursor. 51 skills | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 7,205 tok |
| Devlaner/loomy loomy.devlane.dev Loomy is an open-source collaborative whiteboard. Create infinite boards, invite your team | 7 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 4,094 tok |
| krimto-labs/krimto krimto.com Open-source team memory layer for AI coding agents — markdown files in git, user→team→org | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 915 tok |
| nayasuda/phantom-template 🕵️ Multi-agent AI system template powered by Gemini CLI — automate daily ops with 10 spec | 7 | Claude Code, Gemini CLI | 11 | — |
| mabelisle/omni-cli Omni-CLI: The ultimate AI CLI wrapper. Run Google Gemini, OpenAI Codex, GitHub Copilot, An | 7 | Codex, Gemini CLI, OpenCode | 2 | 5,937 tok |
| nomanr/driftx driftx.nomanr.com Eyes and hands for agentic mobile development | 7 | Gemini CLI | 1 | 16 tok |