23,799 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 |
|---|---|---|---|---|
| dubzdubz/ctx4-ai ctx4-ai.vercel.app Your portable context layer for Claude & ChatGPT | 1 | Claude Code, Codex, OpenCode | 5 | 1,871 tok |
| andr-ca/agentharness andr.ca Portable engineering policies for coding agents — git, testing, logging, and language conv | 1 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 13 | 30,908 tok |
| lesleslie/css-mcp CSS Analysis and Documentation MCP Server for FastBlocks ecosystem | 1 | Claude Code, Codex, OpenCode | 2 | 2,164 tok |
| centia-io/mcp-server centia.io MCP server for Centia.io | 1 | Codex, OpenCode | 1 | 142 tok |
| Rethunk-AI/rethunk-mcp-go A Model Context Protocol (MCP) server that provides Go language tools for LLMs to analyze, | 1 | Claude Code, Codex, OpenCode | 2 | 840 tok |
| Vironnimo/vbot Your own AI agents, self-hosted: persistent agents with memory that work with you or on th | 1 | Claude Code, Codex, OpenCode | 4 | 2,548 tok |
| sandraschi/nuki-mcp FastMCP 3.2 server for Nuki Smart Lock control via Home Assistant Bridge | 1 | Claude Code, Codex, OpenCode | 2 | 287 tok |
| cityjson/cj-mcp Beta version: MCP server for CityJSON spec | 1 | Claude Code, Codex, OpenCode | 2 | 1,787 tok |
| Adversarr/kernel-dsl | 1 | Claude Code, Codex, OpenCode | 2 | 270 tok |
| aks-builds/healthcareskills 91 production-grade healthcare engineering skills for AI agents — FHIR, HL7v2, HIPAA, clin | 1 | Claude Code, Codex, OpenCode | 2 | 1,974 tok |
| goiltpatpat/patpat Evidence-driven engineering skills for agents. Smaller changes, stronger proof. | 1 | Codex, OpenCode | 1 | 1,717 tok |
| 5queezer/distill Privacy-first team memory MCP server — local LLM distillation before team sync | 1 | Claude Code, Codex, OpenCode | 11 | 3,492 tok |
| bitcoin21ideas/skills Cross-agent skills for AI coding agents (Claude Code, Codex, Cursor, Copilot, Gemini), ins | 1 | Claude Code, Codex, OpenCode | 2 | 951 tok |
| LoserLab/devourer x.com Devourer is a Claude skill that transforms color palettes into complete production-ready U | 1 | Codex, OpenCode | 1 | 341 tok |
| JakeTRogers/my-awesome-copilot Selfishly opinionated GitHub Copilot prompts, agents, instructions, and skills. | 1 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 11,107 tok |
| Stepkar2004/init-configurator Agentic project base: Claude Code skills bootstrap and evolve your project, a deterministi | 1 | Claude Code, Codex, OpenCode | 2 | 795 tok |
| troglodyte/claude-neo4j-mem Claude Neo4j memory plugin, in the manner of claude-mem | 1 | Claude Code, Codex, OpenCode | 3 | 7,426 tok |
| YingSun1004/stackshift A transfer-first learning Skill for experienced engineers moving between technology stacks | 1 | Codex, OpenCode | 1 | 436 tok |
| ghenriquec/universal-domain-rules-discover-skill universal AI agent skill for discovering domain rules and generating traceable QA scenario | 1 | Codex, OpenCode | 1 | 93 tok |
| assoumaaa/odoo-superpowers Odoo development skills for AI coding agents — a Claude Code plugin (also Codex & Gemini C | 1 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 593 tok |
| kreek/consult Engineering quality focused skills for AI coding agents that keep humans in the loop. | 1 | Claude Code, Codex, OpenCode | 2 | 4,545 tok |
| Goodsmileduck/claude-registry Community marketplace of Claude Code plugins: DevOps skill packs (Terraform, Kubernetes, C | 1 | Codex, OpenCode | 1 | 4 tok |
| lc-rezende/AI-Custom-Skills A repository containing a variety of custom AI Skills crafted to make our life easier. | 1 | Codex, OpenCode | 1 | 991 tok |
| caprica-Six/hyperliquid-insights-web hyperliquid-insights-web-szxm.vercel.app Modern crypto market dashboard with latest Next 16 Server Components, TypeScript, shadcn/u | 1 | Claude Code, Codex, OpenCode | 4 | 707 tok |
| spmisha134/skillOps-intellij IntelliJ plugin for creating and validating Codex, Claude and Gemini skills inside a proje | 1 | Claude Code, Codex, OpenCode | 2 | 1,622 tok |
| caglarbaranbora/Apple-Agent-Kit Spec-first knowledge system for AI coding agents developing Apple iOS/iPadOS platform apps | 1 | Claude Code, Codex, OpenCode | 2 | 1,939 tok |
| Avalon-27reg/smyslokod-starter A stack-agnostic semantic coding template for Claude Code: business context in business/, | 1 | Claude Code, Codex, OpenCode | 3 | 1,069 tok |
| Synthrun/Cicada cicada-skill.vercel.app Cicada — Security Audit & Fix Skill for LLM coding agents (16 domains, cross-framework) | 1 | Codex, OpenCode | 1 | 210 tok |
| iress/design-system Shared component library for Iress products | 1 | Claude Code, Codex, GitHub Copilot, OpenCode | 17 | 17,196 tok |
| AlbionaHoti/cycle-coded Claude that speaks cycle, chart, and era language — and obeys it. Glossary-first agent mod | 1 | Codex, Gemini CLI, OpenCode | 2 | 283 tok |
| PrecisionUtilityGuild/docforge npmjs.com Agent-grade document production MCP server powered by Typst, plus Forge, a Slack agent for | 1 | Claude Code, Codex, OpenCode | 2 | 939 tok |
| guanhxuan/sshcode-mcp | 1 | Codex, OpenCode | 1 | 539 tok |
| alexandme/textql-mcp Open-Source MCP server for AI models and agents to interact with SQL/Graph databases using | 1 | Codex, OpenCode | 1 | 2,037 tok |
| kenspc/kenspc-claude-plugin Principle-first software-development workflow for Claude Code — brief → plan → task → impl | 1 | Claude Code, Codex, OpenCode | 2 | 3,677 tok |
| epicsagas/toefl-prep TOEFL iBT study plugin — fully offline grading of all 4 sections (Reading/Listening/Speaki | 1 | Claude Code, Codex, OpenCode | 1 | 1,035 tok |
| ishan-parihar/instagram-mcp-server Instagram MCP server — social media automation via Model Context Protocol | 1 | Claude Code, Codex, OpenCode | 3 | 1,393 tok |
| Anmol202005/kira-mcp pypi.org A local Model Context Protocol server that gives any MCP-compatible agent host (Claude Des | 1 | Claude Code, Codex, OpenCode | 2 | 758 tok |
| XyndoX/good-bad-ugly The Good, the Bad and the Ugly — tiered multi-agent orchestration for Claude Code | 1 | Codex, OpenCode | 1 | 773 tok |
| spmisha134/skillOps-vscode Vscode plugin for creating and validating Codex, Claude and Gemini skills inside a project | 1 | Claude Code, Codex, OpenCode | 2 | 1,934 tok |
| kefapps/onepassword-mcp-codex Standalone MCP server for 1Password desktop app integrations with opaque-by-default secret | 1 | Codex, OpenCode | 1 | 1,012 tok |
| alexander-vyh/claude-profiles Switch Claude Code between Anthropic direct and custom LLM gateway profiles via slash comm | 1 | Codex, OpenCode | 1 | 1 tok |
| Nazzero/ai-handoff Structured handoff documents for AI coding agents. Type /handoff to generate session summa | 1 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 205 tok |
| PBNZ/repo-kit RepoKit — a reusable repo standard + /new-repo scaffolder, packaged as a Claude Code plugi | 1 | Claude Code, Codex, OpenCode | 3 | 704 tok |
| seungyeop-lee/beads-starter Bring the beads issue-tracker workflow to AI coding agents — always-on bash installer (AGE | 1 | Claude Code, Codex, OpenCode | 3 | 7,701 tok |
| 0nyr/g5k-kickstart | 1 | Claude Code, Codex, OpenCode | 2 | 540 tok |
| NVZver/claude-marketplace Claude Code plugins for spec-first development: every agent claim cites a source, every co | 1 | Claude Code, Codex, OpenCode | 4 | 1,095 tok |
| Akash97p/agent-notify akash97p.github.io AgentNotify is a local Windows human-attention broker for autonomous coding agents. Agents | 1 | Claude Code, Codex, OpenCode | 2 | 2,063 tok |
| OC-NeuralSense/reader-first-writing-skills An editorial system for AI agents (Claude Code, Codex): 12 skills, independent review agen | 1 | Codex, OpenCode | 1 | 661 tok |
| artttj/llama-steve sonto.space Llama Steve analyzes your actual product to identify and ship game-changing features. Maxi | 1 | Codex, OpenCode | 1 | 817 tok |
| husniadil/ekstend Ekstend your Claude Code with community plugins | 1 | Claude Code, Codex, OpenCode | 2 | 1,594 tok |