43,636 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 |
|---|---|---|---|---|
| Minh-Tam-Solution/SDLC-Enterprise-Framework sdlcframework.org A 7-Pillar AI+Human SDLC methodology — 10 stages, 5 quality gates, 18 SOUL roles. Tool-agn | 20 | Claude Code | 1 | 10,506 tok |
| EndeavorYen/chrome-cdp-ex endeavoryen.github.io Attach a coding agent to the Chrome/Edge/Electron tab you already have open. Cookies stay. | 20 | Claude Code, Codex, OpenCode | 2 | 1,192 tok |
| Kminer2053/demo-video-skill Demo videos created by coding agents — properly showcase your vibe coding results. | 20 | Codex, GitHub Copilot, OpenCode | 2 | 1,441 tok |
| lestrrat-ai/claude-code-plugins | 20 | Claude Code, Codex, OpenCode | 2 | 4,025 tok |
| davisjam/model-based-agentic-software-engineering davisjam.github.io Book, website, and skills for MAGE: the Model-Based Agentic Software Engineering framework | 20 | Claude Code, Codex, OpenCode | 2 | 6,439 tok |
| machinavitalis/jaxonomy py.jaxonomy.com JAX-native simulation engine for hybrid dynamical systems — block-diagram modeling, ODE/DA | 20 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 5 | 2,254 tok |
| SkyShannonProver/shannon-prover skyshannonprover.github.io LLM agents that write machine-checked cryptographic proofs in EasyCrypt (arXiv:2607.02847) | 20 | Claude Code, Codex, OpenCode | 4 | 2,653 tok |
| SamG-Coder/ThreeBrowserStudio LLM-first Three.js WebGPU scene and animation authoring with a persistent native viewport | 20 | Codex, OpenCode | 1 | 397 tok |
| zgbrenner/agentcounsel zgbrenner.github.io Open-source, AI-agnostic skills for legal teams. | 20 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 3,839 tok |
| insung8150/AgentWebSearch-MCP Local WebSearch without API keys - MCP Server for Claude Code, OpenClaw, LM Studio. Parall | 20 | Claude Code | 1 | 1,300 tok |
| kylehughes/writing-prose-like-a-human-for-agents A skill and subagent that help AI agents write and edit prose that doesn't read like AI. | 20 | Claude Code | 1 | 486 tok |
| cq27-dev/rag-rat rag-rat.cq27.dev Local repo-intelligence index + MCP server: semantic search, symbol/graph navigation, impa | 20 | Claude Code, Codex, OpenCode | 7 | 2,974 tok |
| techleadhd/blockworld Voxel renderer for AI Agents (MCP, skills) | 20 | Claude Code | 3 | — |
| Kashkovsky/threadnote threadnote.io Local-first engineering memory and large-scale polyglot graph search for Codex, Claude, Cu | 20 | Codex, OpenCode | 1 | 1,683 tok |
| j4th/mtg-mcp-server Unified MCP server composing Scryfall, Commander Spellbook, 17Lands, EDHREC, Moxfield, Spi | 20 | Claude Code | 8 | 3,716 tok |
| w1ne/kernelCAD-web Open, agent-native CAD; edit code, not click menus, make things. kernelCAD.com | 20 | Claude Code | 1 | 780 tok |
| scszcoder/eCan.ai ecan.ai Privacy-first, AI native agents For E-Commerce (and beyond), create skill (langgraph based | 20 | Claude Code | 1 | 3,566 tok |
| kamioj/spec-workflow Personal Claude Code plugin marketplace for SDD workflow (research / ask / propose / apply | 20 | Claude Code | 1 | 4,960 tok |
| EodHistoricalData/EODHD-MCP-Server EODHD MCP Server for AI assistants | 20 | Claude Code, Codex, OpenCode | 2 | 2,762 tok |
| m0nkmaster/msteams-mcp Microsoft Teams MCP Server using standard user sign in flows. | 20 | Codex, OpenCode | 1 | 4,416 tok |
| nocentino/sql-mcp-server nocentino.com SQL Server MCP demo - two MCP server patterns on SQL Server 2025: Data API Builder for CRU | 20 | GitHub Copilot | 1 | 639 tok |
| ivanshamaev/de-agent-skills datatalks.ru Professional Data Engineering Agent Skills for developing AI Agentic Data Platforms. | 20 | Claude Code | 2 | 8,914 tok |
| ExaDev/agent-comms Cross-harness communication mesh for LLM agents. Rooms, DMs, presence, and visibility. | 20 | Claude Code, Codex, OpenCode | 2 | 4 tok |
| GabrielOnDelphi/Autopilot-for-Delphi gabrielmoraru.com Autopilot for Delphi | 20 | Claude Code | 1 | — |
| scvcoder/korean-law-alio-mcp npmjs.com (Overview) An MCP for searching, comparing, and analyzing internal regulations of public i | 20 | Claude Code | 1 | 3,809 tok |
| keshrath/agent-tasks npmjs.com Pipeline-driven task management for AI coding agents — stages, dependencies, artifacts, an | 20 | Claude Code | 1 | 1,319 tok |
| uizze/uizze uizze.com Build better UI with coding agents. Free design skills, a PR finish gate, and MCP referenc | 20 | GitHub Copilot | 1 | 92 tok |
| GAJETOso/financeskills AI-powered skills for financial professionals. Comprehensive collection of finance, accoun | 20 | Claude Code, Codex, OpenCode | 2 | 1,966 tok |
| jdguggs10/flaim flaim.app Fantasy Sports MCP Platform | 20 | Claude Code, Codex, OpenCode | 5 | 1,153 tok |
| The-OpenROAD-Project/OpenROAD-MCP Model Context Protocol (MCP) server for OpenROAD | 20 | Claude Code | 3 | — |
| j0hanz/filesystem-mcp A local filesystem MCP server that lets LLMs and AI agents read, write, search, diff, patc | 20 | Claude Code, Codex, OpenCode | 2 | 164 tok |
| lonetis/claudeleaf npmjs.com Bring Claude (and any agent) into Overleaf. Claudeleaf is a reliable TypeScript bridge tha | 20 | Claude Code | 1 | 4,463 tok |
| yangsijie666/xiaohongshu-crawler Xiaohongshu data collection tool — a Playwright-based stealth crawler supporting search, p | 20 | Claude Code | 1 | 1,412 tok |
| AndyVictors/clausative A writing style for specifications that both AI and humans are happy with. | 20 | Claude Code | 1 | — |
| vincentmumme/personalos-boilerplate mummentum.de Open-Source-Boilerplate für PersonalOS: Markdown-basierte Systemlogik, Templates und lokal | 20 | Codex, OpenCode | 1 | 691 tok |
| genged/capshelf Shared Agent Configuration tool, share skills, configs and mcps across multiple projects | 20 | Claude Code, Codex, OpenCode | 3 | 2,744 tok |
| shkyyy18/mi_fitness_data_bridge A local-first Xiaomi fitness and health data bridge: export your own Mi Home data to SQLit | 20 | Codex, OpenCode | 1 | 1,026 tok |
| zach-blumenfeld/knowledge-index The Graph Search Engine for Your Knowledge Base | 20 | Claude Code, Codex, OpenCode | 2 | 4,035 tok |
| honra-io/drizzle-best-practices | 20 | Claude Code, Codex, OpenCode | 2 | 820 tok |
| mslavov/shelly-forge Shelly Forge is a TypeScript framework and CLI tool for developing, testing, and deploying | 20 | Claude Code, Codex, OpenCode | 10 | 775 tok |
| pimcore/studio-backend-bundle Studio Backend bundle | 20 | Claude Code, Codex, GitHub Copilot | 3 | 1,670 tok |
| majiayu000/claude-skill-registry-data Raw skills archive data for the Claude skill registry | 20 | Claude Code, Codex, OpenCode | 2 | 599 tok |
| manakuro/asana-clone-app asanacloneapp.codelly.dev Asana clone app | 20 | Claude Code, Codex, OpenCode | 6 | 1,846 tok |
| Macavity/mapeditor Online TileMap Editor for json/tmx files exported from Tiled. | 20 | GitHub Copilot | 1 | 815 tok |
| JustinGrote/ExcelFast A high performance PowerShell module for importing, exporting, and manipulating Excel File | 20 | GitHub Copilot | 1 | 672 tok |
| FastEndpoints/Documentation fast-endpoints.com Documentation website source code for FastEndpoints. | 20 | Codex, OpenCode | 1 | 650 tok |
| louisbrulenaudet/monorepo-template A concise, AI native and production-grade starter template for full-stack applications usi | 19 | Claude Code, Codex, OpenCode | 6 | 5,421 tok |
| amanayayatu-tech/ksana A localized, native AI investment research and decision-making system. It is designed to s | 19 | Codex, OpenCode | 1 | 665 tok |
| MartinLoeper/claude-o-meter CLI tool to extract Claude AI usage metrics as JSON for status bars like HyprPanel. Includ | 19 | Claude Code, GitHub Copilot | 2 | 1,583 tok |
| rondoflow/rondoflow rondoflow.app RondoFlow is a local-first, open-source platform for visually orchestrating Claude Code AI | 19 | Claude Code | 11 | 2,116 tok |