43,712 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 agents7,642Claude Code6,648Data and AI3,676Backend and APIs3,504Languages3,399Planning3,222Git and workflow3,208Code review2,742Testing2,379Memory and context2,369Writing and docs2,323DevOps and cloud2,311Research2,290Frontend2,261Security2,025Productivity1,719
All Claude Code31,996 Codex23,310 OpenCode22,256 GitHub Copilot3,557 Gemini CLI1,917 Cursor1,739 Windsurf141 Kiro81
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| shisa-ai/textguard Hostile-text normalization, inspection, and cleaning for LLM-adjacent systems. | 2 | Claude Code, Codex, OpenCode | 2 | 1,456 tok |
| SocketDev/sauce Skills for coding agents to interact with Socket | 2 | Claude Code | 7 | 7,509 tok |
| 10x-Anit/10x-Vibe-Marketer-Skill 10x Vibe Marketer - Landing page skill plugin | 2 | Claude Code | 23 | 702 tok |
| agntdev/skills | 2 | Codex, OpenCode | 1 | 1,481 tok |
| kuil09/tossinvest-openapi-agent-pack Agent-compatible Toss Securities Open API instruction pack with Hermes skill packaging | 2 | Claude Code | 1 | 158 tok |
| JoelYYoung/retrolens | 2 | Claude Code, Codex | 1 | — |
| fdarian/rskills Read skills without installing them | 2 | Claude Code, Codex, OpenCode | 2 | 3,589 tok |
| VoTruongDanh/Skills-Agent | 2 | Claude Code, Codex | 15 | — |
| cbruyndoncx/ThirdBrAIn-Tools | 2 | Claude Code, Codex, OpenCode | 2 | 4,552 tok |
| solankiharsh/craftsman-skills | 2 | Claude Code, Codex, OpenCode | 2 | 884 tok |
| nnkogift/personal-skills A personal collection of coding agent skills reusable instruction sets that load via Claud | 2 | Claude Code | 1 | 507 tok |
| This-Is-NPC/assisted_workflow | 2 | Claude Code, OpenCode | 15 | — |
| xSolutions365/skills collection of skills following opinionated adaption of the www.agentskills.io standard | 2 | Codex, OpenCode | 1 | 155 tok |
| Greyman-Seu/FollowHub | 2 | Codex, OpenCode | 1 | 790 tok |
| conflux-fans/conflux-skills | 2 | Codex, OpenCode | 1 | 527 tok |
| marcelolebre/anti-slopper An agent skill that makes AI assistants write like a human. Kills AI slop while drafting, | 2 | Codex, OpenCode | 1 | 148 tok |
| maxtechera/ship End-to-end GTM pipeline + credentials preflight. Opensource Claude Code skill. | 2 | Claude Code | 1 | — |
| cameronww7/skill-sec-arcade A leveling-up arcade of Claude Code skills for AppSec and security engineering. Insert coi | 2 | Claude Code | 1 | — |
| qinxi1477/ai-content-critic-skill AI Content Critic is a cross-agent skill for Claude Code and Codex that critiques AI-gener | 2 | Claude Code, Codex, OpenCode | 2 | 180 tok |
| e01n0/skillspec SkillSpec is a DSL that adds types, contracts, composition, and tests around agent skills, | 2 | Claude Code | 1 | 627 tok |
| dp-lewis/licence-to-skill | 2 | Claude Code, GitHub Copilot | 1 | 326 tok |
| davidlastrucci/trysil-ai-skills LLM skills for "Trysil - Delphi ORM": ORM, JSON and HTTP, for every major | 2 | GitHub Copilot | 1 | 21,657 tok |
| RicoMitra/SkillOps-OS skillops-os.vercel.app Local-first AI skill governance console for importing `SKILL.md` files, classifying skill | 2 | Claude Code, Codex, OpenCode | 2 | 834 tok |
| waiyanwh/agent-infra-skills Reusable infrastructure, cloud, SRE, and delivery skills for AI coding agents. | 2 | Codex, OpenCode | 1 | 505 tok |
| pedrosoutom/spec-way | 2 | Claude Code | 10 | — |
| velesnitski/php-agents-boilerplate Multi-agent system for Claude Code – PHP/Laravel backend team with router, backend dev, DB | 2 | Claude Code | 14 | 640 tok |
| AlissonPokry/Maestro A context-management tool for AI agents that groups instructions into "Skill Bundles." Mae | 2 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 213 tok |
| desirecore/market Official marketplace repository for DesireCore. | 2 | Claude Code, Codex, OpenCode | 2 | 1,397 tok |
| SuryaPrakashPandurangi/vscode-extension-builder A Claude skill that generates a VS Code extension for you | 2 | Claude Code | 1 | — |
| NewmanXBT/normans-skills | 2 | Claude Code | 1 | 91 tok |
| zhpeng24/devkit Developer toolkit — cross-platform coding skills for AI agents | 2 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 503 tok |
| venomwise/skill-factory This repository is a skill factory for AI coding agents, enabling teams to systematically | 2 | Claude Code, Codex, OpenCode | 2 | 4,516 tok |
| Eklavya-San/CTQ-extraction eklavya-san.github.io AI agent skill for extracting Critical-To-Quality (CTQ) parameters, GD&T feature control f | 2 | Claude Code, Cursor, Gemini CLI | 3 | 231 tok |
| aipro831gith/skills_bundle_by_sujal Antigravity 2.0 Enterprise Ecosystem — 17-Agent AI Software Company Package | 2 | Claude Code, Codex, Gemini CLI, OpenCode | 42 | 3,468 tok |
| aiko-atami/effectorjs-skills effector.dev AI agent skill for effector.js ecosystem | 2 | Codex, OpenCode | 1 | 94 tok |
| Adelphopoet/trino-best-practices-skill | 2 | Codex, OpenCode | 1 | 284 tok |
| bohorquezod/agentlink Node.js CLI to generate granular symlinks from .ai to agent IDE configs | 2 | Claude Code, Codex, OpenCode | 23 | 5 tok |
| singlegrain-marketing/marketing-ai-playbooks Battle-tested marketing AI playbooks from the agency behind Uber, Amazon, Salesforce. 7 sk | 2 | Claude Code | 8 | 348 tok |
| bachkukkik/template-agentic-ready-repo | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 5 | 7,825 tok |
| nikhilreddy3888/public-api-toolkit nikhilreddy3888.github.io A cross-platform MCP server that turns public APIs into clean, agent-ready tools. | 2 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,472 tok |
| nanasess/eccube-dev-agents EC-CUBE/Symfony development toolkit with specialized AI agents, Gemini integration, GitHub | 2 | Claude Code | 1 | 1,145 tok |
| 10x-Anit/10x-analyst | 2 | Claude Code | 1 | 1,364 tok |
| gstdcoin/A2A GSTD Agent-to-Agent protocol SDK (Python) -- register, poll tasks, earn GSTD. Fine-tuning | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 3,432 tok |
| magiccloudflash/opencode-skill-hallucination-prevention This is an open-code skill designed to keep AI from falling into hallucinations that great | 2 | Codex, OpenCode | 1 | 1,143 tok |
| filip-pilar/founder-skills Skills for startup founders: copywriting, customer research, growth, experiments, design, | 2 | Claude Code | 1 | 684 tok |
| ariel-lee-1023/Books-to-Skill-Refs Turn books and documents into domain expert skills: extract their frameworks, methods, and | 2 | Codex, OpenCode | 1 | 901 tok |
| JoeSagera/Spec-Driven-Research | 2 | Codex, OpenCode | 1 | 103 tok |
| deremer/tacocat-skill A Claude Code skill that simulates a cat interfering with your programming productivity. | 2 | Claude Code | 1 | 206 tok |
| don-huron/-- Research about one of the major fake accounts of NWO terrorists | 2 | Codex, OpenCode | 1 | 949 tok |
| SiloCityLabs/SiloCityPages pages.silocitylabs.com A framework leveraging Bootstrap, React, and Next.js for efficient static site development | 2 | Claude Code, Codex, OpenCode | 2 | 417 tok |