23,196 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 |
|---|---|---|---|---|
| YuliaNuzhnenko/bioinformatics-agent-skills The #1 open-source collection of scientific AI Agent Skills, tool specifications, and prom | 9 | Claude Code, Codex, OpenCode | 2 | 435 tok |
| deevus/tea-skills Agent skills for Gitea/Forgejo issue, pull request, milestone, and label workflows using t | 9 | Claude Code, Codex, OpenCode | 2 | 993 tok |
| davidmosiah/wellness-nourish wellness.delx.ai Local-first nutrition MCP for Claude/Cursor: USDA food search, barcode + photo, meal loggi | 9 | Codex, OpenCode | 1 | 173 tok |
| HieuAnh87/sentry-selfhosted-mcp hieuanh87.github.io MCP server for self-hosted Sentry: issues, events, releases, users, org stats, and project | 9 | Claude Code, Codex, OpenCode | 2 | 623 tok |
| eddmann/strava-mcp MCP server enabling LLMs to interact with the Strava API - activities, segments, routes, a | 9 | Claude Code, Codex, OpenCode | 2 | 47 tok |
| dorukardahan/twitterapi-io-mcp npmjs.com TwitterAPI.io MCP server: offline docs (endpoints, pages, blogs) for Claude and other AI a | 9 | Claude Code, Codex, OpenCode | 2 | 1,138 tok |
| pyranthus-hq/mora Experimental local-first memory CLI for MCP agents: read-only Gmail, calendars, iMessage, | 9 | Codex, OpenCode | 1 | 842 tok |
| strikersam/autonomous-ai-agency autonomous-ai-agency.strikersam.workers.dev An AI-powered workforce platform that executes multi-agent tasks with automatic provider f | 9 | Claude Code, Codex, OpenCode | 5 | 8,644 tok |
| planetabhi/figma-mcp-server registry.modelcontextprotocol.io A local Figma MCP server. Skill install: npx figma-agent | 9 | Claude Code, Codex | 1 | — |
| flyfish-dev/word-ai AGPL-licensed structure-preserving Word (DOCX) editing MCP server, Codex Skill, and Office | 9 | Codex, OpenCode | 1 | 823 tok |
| piprail/piprail piprail.com x402 (HTTP 402 Payment Required) SDK + MCP server: let any API charge for itself and any A | 9 | Claude Code, Codex, OpenCode | 14 | 9,646 tok |
| dimitrovakulenko/dwg-mcp-server dmytro-prototypes.net DWG file format access for AI via MCP. Connect DWG files to Claude, ChatGPT, Codex, Cursor | 9 | Codex, OpenCode | 1 | 1,526 tok |
| yuriipalam/codex-status-bar A compact macOS menu bar companion for Codex: live status icons, elapsed timers, active an | 9 | Codex, OpenCode | 1 | 862 tok |
| wezendy/elon-musk-algorithm-skills Elon Musk's 5-step algorithm as skills for AI agents. | 9 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 2,190 tok |
| SeanMooney/openstack-ai-style-guide A comprehensive style guide and ruleset specifically designed for AI code generation tools | 9 | Claude Code, Codex, OpenCode | 2 | 1,119 tok |
| wtfzambo/pandino Reliable agentic coding. Like a Fiat Panda. | 9 | Codex, OpenCode | 1 | 3,261 tok |
| Sungmin-Cho/deep-suite Harness layer for Claude Code & Codex: plan-first development, independent review, durable | 9 | Claude Code, Codex, OpenCode | 2 | 2,043 tok |
| acaprino/daodan Custom Claude Code plugin repository with development workflow agents and skills | 9 | Claude Code, Codex, OpenCode | 6 | 26,318 tok |
| SummerSec/SumSec-Skills SummerSec personal custom Skill repository | 9 | Claude Code, Codex, OpenCode | 6 | 4,050 tok |
| linkpranay-ai/context-engineering-protocol Portable AI coding-agent skills for source-attributed, human-approved context packages. | 9 | Codex, OpenCode | 1 | 1,388 tok |
| yuz9610/POE2Overlay | 9 | Claude Code, Codex, OpenCode | 2 | 2,953 tok |
| mohamed-hossam1/nextjs-skills Next.js 16+ caching architecture. Applies to any App Router project regardless of domain. | 9 | Claude Code, Codex, OpenCode | 2 | 2,100 tok |
| Submersible/mcp-hashline-edit-server MCP server providing hashline-based file editing — line-addressed edits with content hashe | 9 | Codex, OpenCode | 1 | 1,872 tok |
| duynghien/n8n-custom-mcp ai.vnrom.net 🔌 Full-power MCP Server for n8n — CRUD workflows, test webhooks, debug executions. Built | 9 | Claude Code, Codex, OpenCode | 2 | 1,443 tok |
| eriknewton/sanctuary-framework sanctuaryprotocol.ai Open-source security for AI agents: kernel-enforced egress control on macOS and Linux, key | 9 | Claude Code, Codex, OpenCode | 2 | 5,815 tok |
| xgre1/troth troth.one An AI partner whose memory lives on your machine, not in a vendor account. Swap the model, | 9 | Claude Code, Codex, OpenCode | 2 | 1,110 tok |
| patrickpxp/ibkr-mcp-server yet another Interactive Brokers MCP server (for TWS API) . skill included | 9 | Codex | 1 | — |
| tiangong-ai/skills skills | 9 | Codex, OpenCode | 1 | 1,238 tok |
| ProjectAtlantis-dev/atlantis-mcp-server projectatlantis.ai Multix virtual filesystem node, MCP-compatible, really just a glorified function container | 9 | Claude Code, Codex, OpenCode, Windsurf | 3 | 548 tok |
| ns3154/alibaba-java-coding-guidelines-skill skill for applying Alibaba Java Coding Guidelines | 9 | Codex, OpenCode | 1 | 25 tok |
| rusel95/ios-agent-skills Production-tested iOS Agent Skills for Claude Code, Codex, and 40+ AI coding tools. 8 ente | 9 | Codex, OpenCode | 1 | 407 tok |
| alyiox/mcp-mssql Read-only-by-default MCP server for Microsoft SQL Server: metadata discovery, parser-enfor | 9 | Claude Code, Codex, OpenCode | 2 | 767 tok |
| fmschulz/omics-skills fmschulz.github.io | 9 | Codex, OpenCode | 1 | 3,034 tok |
| flurdy/agent-skills Shared AI agent skills | 9 | Claude Code, Codex, OpenCode | 2 | 731 tok |
| qingye-lab/rootloom qingye-lab.github.io Inspectable engineering workflows for OpenAI Codex. | 9 | Codex, OpenCode | 1 | 337 tok |
| 2233admin/design-pipeline A frontend design pipeline for AI Agents: write DESIGN.md and MOTION.md first, then code t | 9 | Claude Code, Codex | 52 | 276 tok |
| katalon-labs/true-skills katalon.com Agent-neutral AI testing skills for Katalon True Platform: 18 skills covering the full tes | 9 | Codex, GitHub Copilot, Kiro, OpenCode | 20 | 67,348 tok |
| kuhung/weread-book-skills Compile WeChat Read notes into executable AI Agent Skills (SKILL.md), mount once to run in | 9 | Codex, OpenCode | 1 | 3,220 tok |
| ivo-toby/postgram postgram.dev Self-hosted knowledge for humans and agents. | 9 | Claude Code, Codex, OpenCode | 11 | 1,022 tok |
| ballast-ai/token-station Local routing control plane for AI agents and LLM providers, with a loopback-only gateway, | 9 | Codex, OpenCode | 1 | 3,278 tok |
| mrf/godot-stagehand Playwright inspired tool for testing Godot games | 9 | Claude Code, Codex, OpenCode | 2 | 2,788 tok |
| qarnet/serial-mcp Serial port MCP server for Claude Code, Codex, Opencode and AI agents. Reliable UART/USB-s | 9 | Claude Code, Codex, OpenCode | 2 | 14,883 tok |
| sturlese/stigmergy A team's knowledge, captured where the work happens, filed by an agent, and answered with | 9 | Claude Code, Codex, OpenCode | 4 | 1,626 tok |
| hannsxpeter/humanizer Pure-prompt skill that de-slops AI-sounding prose and rewrites it in a writer's voice, wit | 9 | Codex, GitHub Copilot, Gemini CLI, OpenCode | 3 | 1,464 tok |
| Sivan757/dsh-agent-plugins-market npmjs.com DeepSeek Harness (DSH) plugin marketplace: install & inject Claude Code / Codex / Cursor a | 9 | Codex, OpenCode | 1 | 1,654 tok |
| cyanheads/pixoo-mcp-server npmjs.com Render and push styled pixel art, text, dashboards, and animations to Divoom Pixoo LED dis | 9 | Claude Code, Codex, OpenCode | 2 | 8,380 tok |
| adamanz/grok-bot-skill skills.sh Cursor / Agent Skill to chat with Grok Bot teammates and create new Grok Bots from the CLI | 9 | Codex, OpenCode | 1 | 114 tok |
| TueJon/webmcpify webmcpify.at WebMCP agent skill — make any web app agent-ready, verifiably: inventory, integrate, verif | 9 | Codex, OpenCode | 1 | 648 tok |
| inoX-Network/claude-code-safety-guard 3-level override system for Claude Code - prevents destructive system operations. Born fro | 9 | Claude Code, Codex, OpenCode | 2 | 1,224 tok |
| ljchang/mecha docs.mecha-factory.ai A standalone agent harness in Rust: a provider-agnostic loop, MCP tools, a path jail and p | 9 | Claude Code, Codex, OpenCode | 4 | 8,151 tok |