24,815 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 agents8,505Claude Code6,886Git and workflow3,611Data and AI3,580Backend and APIs3,556Languages3,487Planning3,327Code review2,899Testing2,686Writing and docs2,480DevOps and cloud2,479Memory and context2,375Research2,323Frontend2,308Security2,172Project management1,965
All Claude Code32,517 Codex24,815 OpenCode23,733 GitHub Copilot3,719 Gemini CLI2,034 Cursor1,770 Windsurf202 Kiro114
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| lesleslie/jinja2-async-environment Provides asynchronous alternatives to Jinja2's standard template environment and loaders | 6 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,668 tok |
| lucaspressi/claudekit-engineer | 6 | Claude Code, Codex, Gemini CLI, OpenCode | 10 | 2,006 tok |
| Monarc-Engineering/fullstack-template Skip the repetitive setup, save tokens, save time and focus on the business logic | 6 | Claude Code, Codex, OpenCode | 15 | 3,658 tok |
| IgorGanapolsky/openclaw-console Native iOS & Android mobile console for OpenClaw agents. Biometric approvals, real-time mo | 6 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 18 | 6,676 tok |
| hydrolix/grafana-datasource-plugin Hydrolix data source for Grafana | 6 | Claude Code, Codex, Gemini CLI, OpenCode | 8 | 93 tok |
| gemyago/apigen HTTP API Layer Generator for the Go (golang) projects | 6 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 1,653 tok |
| adbertram/cli-tools Service-specific Python CLI tools with shared auth, browser automation, runtime profiles, | 6 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 491 tok |
| mrgnhnt96/sip A command-line tool to manage Dart mono-repos. | 5 | Claude Code, Codex, OpenCode | 7 | 2,808 tok |
| VantaInc/vanta-mcp-plugin Official Vanta plugin for Claude Code | 5 | Claude Code, Codex, OpenCode | 1 | 294 tok |
| villagesql/villagesql-skills villagesql.com Agent skills for VillageSQL - gemini-cli-extension; claude-code-plugin | 5 | Codex, OpenCode | 1 | 382 tok |
| Kyure-A/nix-config NixOS configuration | 5 | Claude Code, Codex, OpenCode | 2 | 212 tok |
| HereditaryDog/gaster-code-releases hereditarydog.github.io Gaster Code: public local AI coding assistant with CLI, desktop app, MCP, Skills, Agents, | 5 | Codex, OpenCode | 1 | 1,619 tok |
| cosscom/coss coss.com One API key and one SDK for email, SMS, AI agent inboxes, scheduling, webhooks and more. | 5 | Claude Code, Codex, OpenCode | 2 | 32,545 tok |
| lonestone/lonestone-boilerplate lonestone.github.io Starter kit for full-stack webapps, SaaS and websites with React and NestJS | 5 | Claude Code, Codex, OpenCode | 2 | 572 tok |
| NathanZane/codex-mobile Remote-control Codex from Discord, with mirrored conversations, approvals, queueing, and s | 5 | Codex, OpenCode | 1 | 2,561 tok |
| RonaldBunk/minestom-mcp ronaldbunk.me A stdio MCP server for Minestom, implemented with the Model Context Protocol SDK and TanSt | 5 | Claude Code, Codex, OpenCode | 2 | 379 tok |
| hubvue/skills skillset-by-kim.cckcc-kim.chatgpt.site Kim's skills | 5 | Claude Code, Codex, OpenCode | 2 | 3,599 tok |
| aegntic/cognitive-os aegntic.github.io Cognitive OS v3.0 — Universal AI agent operating system specification. 16-section cognitiv | 5 | Claude Code, Codex, Cursor, Gemini CLI, OpenCode | 4 | 8,074 tok |
| mordor-forge/trident-mcp Unofficial MCP server for the Tripo 3D API (v3): text/image/multiview to 3D, P1/P2 low-pol | 5 | Codex, OpenCode | 1 | 1,258 tok |
| jzjzzzzzzz/IntentForge Intent-preserving deterministic CAD pipeline for editable, validated CadQuery models. | 5 | Codex, OpenCode | 1 | 207 tok |
| NaNMesh/nan-forget Never forget. Long-term memory for any LLM. | 5 | Claude Code, Codex, OpenCode | 9 | 2,972 tok |
| Digital-Threads/token-pilot npmjs.com Save 60-80% tokens when AI reads code — MCP server for token-efficient code navigation wit | 5 | Claude Code, Codex, OpenCode | 2 | 1,566 tok |
| InvoiceXML/invoicexml-mcp mcp.invoicexml.com InvoiceXML MCP Server for global invoice compliance: Factur-X, ZUGFeRD, XRechnung, CII and | 5 | Codex, Gemini CLI, OpenCode | 2 | 2,976 tok |
| cioffiAI/mcp-agora MCP Server with cross-agent persistent memory for AI agent fleets. Vector memory (ChromaDB | 5 | Codex, OpenCode | 1 | 3,759 tok |
| dinglebear-ai/rtailscale npmjs.com Rust MCP server and CLI for Tailscale tailnet operations: devices, users, keys, policies, | 5 | Claude Code, Codex, Gemini CLI, OpenCode | 4 | 3,084 tok |
| clouatre-labs/math-mcp-learning-server Educational MCP server with math operations, matrix algebra, data visualization, and persi | 5 | Codex, OpenCode | 1 | 550 tok |
| iamalisson/inquisitor Hypothesis-driven problem solving for AI agents: probe, falsify, escalate — never blind-re | 5 | Codex, OpenCode | 1 | 1,531 tok |
| New1Direction/korgex korgex-docs.pages.dev The verifiable AI coding agent : provider-agnostic, MCP-native, tamper-evident ledger | 5 | Codex, OpenCode | 1 | 311 tok |
| NazarKalytiuk/tarn nazarkalytiuk.github.io CLI-first API testing tool. YAML-defined tests, structured JSON output, built for AI-assis | 5 | Claude Code, Codex, Cursor, OpenCode | 3 | 5,987 tok |
| GeiserX/spinnaker-mcp geiserx.github.io MCP Server for Spinnaker — manage applications, pipelines, and deployments via the Model C | 5 | Claude Code, Codex, OpenCode | 4 | 2,456 tok |
| Sapientropic/AIppocampus aippocampus.com Source-backed continuity layer for long-running AI agent relationships. | 5 | Claude Code, Codex, OpenCode | 3 | 2,664 tok |
| Shangri-la-0428/Thronglets P2P shared memory substrate for AI agents — stigmergic knowledge network via libp2p | 5 | Claude Code, Codex, OpenCode | 2 | 4,571 tok |
| cmd8/excalidraw-mcp npmjs.com Model Context Protocol server for Excalidraw diagrams | 5 | Codex, OpenCode | 1 | 327 tok |
| talonicdev/talonic-mcp Official Talonic MCP server. Lets AI agents extract structured data from any document via | 5 | Claude Code, Codex, OpenCode | 2 | 6,536 tok |
| beyondwin/FixThis Point at any Jetpack Compose UI element, annotate it, and hand off source pinned prompts t | 5 | Claude Code, Codex, OpenCode | 4 | 1,393 tok |
| mikhae1/kubeview-mcp A Modern, Lightweight MCP Server for Kubernetes | 5 | Claude Code, Codex | 1 | — |
| marshally/mcp-refactoring MCP server exposing Martin Fowler's refactoring catalog to LLMs | 5 | Codex, OpenCode | 1 | 230 tok |
| piyushpathakqa/Vigilis Agentic QA framework: Claude authors, generates, triages & self-heals Playwright tests. MC | 5 | Claude Code, Codex, Cursor, OpenCode | 3 | 2,755 tok |
| xxxoooxoxo/wiff Harness-agnostic, deterministic, resumable multi-agent workflows — plain-JavaScript orches | 5 | Codex, OpenCode | 1 | 1,288 tok |
| RadOrigin-LLC/RAD-Claude-Skills Marketplace of plugins and skills for Claude Code | 5 | Claude Code, Codex, OpenCode | 2 | 590 tok |
| amittamari/hop Fast full-text search and resume for coding-agent sessions | 5 | Claude Code, Codex, Cursor, OpenCode | 17 | 694 tok |
| overdrive-dev/aihaus-flow Repository-local workflow, memory, and evidence contracts for coding agents (Claude Code, | 5 | Codex, OpenCode | 1 | 690 tok |
| tremtec/maestro 🎵 Maestro - an LLM Orchestrator for your Agentic Opera | 5 | Codex, OpenCode | 1 | 2,743 tok |
| Bind/skillz.sh agent skills manager | 5 | Codex, OpenCode | 3 | 1,621 tok |
| ludan12138/buddy-companion A small toy skill for Codex and other code agents that adds a persistent ASCII companion p | 5 | Codex, OpenCode | 1 | 533 tok |
| swoopeagle/standardgraph swoopeagle.github.io International Education Standards MCP — CCSS, Singapore MOE, IB MYP and more. Grounding la | 5 | Claude Code, Codex, OpenCode | 8 | 5,209 tok |
| sidkandan/CLIronChef CLI and AI-agent control for Typhur Dome 2 and Sync ONE probe cooks | 5 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 3,003 tok |
| nullism/goder goder.io A simple Golang TUI for agentic coding | 5 | Codex, OpenCode | 1 | 581 tok |
| skycube/junebug Agent skill that reduced the natural language to what's important. Stay with the most rele | 5 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 776 tok |
| pickjason/cc-windows A visual cc workspace | 5 | Claude Code, Codex, OpenCode | 2 | 5,996 tok |