How real projects configure their agents

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