How real projects configure their agents

23,614 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 agents8,442Claude Code6,875Data and AI3,584Git and workflow3,574Backend and APIs3,550Languages3,468Planning3,315Code review2,876Testing2,653DevOps and cloud2,462Writing and docs2,461Memory and context2,373Research2,315Frontend2,301Security2,167Project management1,944

All Claude Code32,436 Codex24,692 OpenCode23,614 GitHub Copilot3,700 Gemini CLI2,016 Cursor1,769 Windsurf202 Kiro113

Project Stars Configures Files Always loaded
gogpu/gg Enterprise-grade 2D graphics library for Go. Pure Go, zero CGO. Part of GoGPU ecosystem. 168 Codex, OpenCode 1 806 tok
zero-lab-ai/skills zero-lab.ai Portable, evidence-bound security skills for authorized defensive assessment, red teaming, 168 Claude Code, Codex, OpenCode 2 1,717 tok
tasmirz/jagoo-bahee 167 Claude Code, Codex, OpenCode 2 10,260 tok
FlineDev/ContextKit Claude Code context engineering & planning system for individual AI development workflows 167 Claude Code, Codex, OpenCode 2 9,984 tok
eric-tramel/slop-guard eric-tramel.github.io Slop Scoring to Stop Slop 167 Claude Code, Codex, OpenCode 3 632 tok
cocode-agency/cocode cocode.agency Best ready-to-run DeepSeek Harness distribution: DSH desktop GUI, DSH terminal TUI, and ha 167 Codex, OpenCode 1 1,500 tok
explyt/spring-plugin explyt.ai Spring Explyt is a free, open-source (Apache-2.0) Spring and Spring Boot plugin for Intell 167 Codex, OpenCode 1 1,121 tok
Austin1serb/agents-md serbyte.net AGENTS.md patterns for context engineering in coding agents: safer command output, token e 167 Codex, OpenCode 1 1,013 tok
miroapp/miro-ai Official Miro AI developer tools and integrations. Includes MCP server configuration, Clau 167 Claude Code, Codex, OpenCode 4 564 tok
cyanheads/pubmed-mcp-server npmjs.com Search PubMed/Europe PMC, fetch articles and full text (PMC/EPMC/Unpaywall), citations, Me 167 Claude Code, Codex, OpenCode 2 17,672 tok
flop-labs/technocore-chat technocore.chat HTTP-native chat and notes for agents whose sandbox only allows webfetch — every write is 167 Codex, OpenCode 1 755 tok
nazarli-shabnam/clevis clevis.org Self-hosted GitHub security dashboard — tracks org security checks (MFA, branch protection 167 Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode 17 9,327 tok
zeke/faster-chrome-devtools-skill Agent skill that makes Chrome DevTools faster 167 Codex, OpenCode 1 473 tok
DefangLabs/defang defang.io Defang Deploy CLI. Develop Once, Deploy Anywhere. Take your app from Docker Compose to a s 167 Claude Code, Codex, OpenCode 4 719 tok
TabooHarmony/roblox-brain The Roblox Studio knowledge your coding agent is missing. Skill library for Roblox Studio 167 Codex, OpenCode 1 1,680 tok
msei99/pbgui 167 Claude Code, Codex, GitHub Copilot, OpenCode 3 7,572 tok
necoz-oss/is-kit is-kit.dev Build small guards. Compose them. A lightweight, zero-dependency toolkit for building reu 167 Codex, OpenCode 1 2,536 tok
shirenchuang/agentbro agentbro.net A macOS Dynamic Island for AI coding agents: Claude Code, Codex, Gemini CLI, Cursor, hooks 166 Claude Code, Codex, OpenCode 5 1,558 tok
haseab/retrace retrace.to The Open Source and Free Rewind AI (but better) 166 Codex, OpenCode 1 5,567 tok
cerul-ai/cerul cerul.ai Open-source video processing core and CLI. Search and annotate local videos with your own 166 Codex, OpenCode 1 573 tok
dnotitia/akb AKB — Agent Knowledgebase. Organizational memory for AI agents: vault-scoped docs / tables 166 Claude Code, Codex, OpenCode 5 4,149 tok
rix1337/Quasarr Quasarr connects JDownloader with Radarr, Sonarr, Lidarr and Magazarr. It also decrypts li 166 Codex, OpenCode 1 1,281 tok
Invaro/opentax-engine opentax.invaro.ai The deterministic tax engine for AI agents. Highest score ever recorded on TaxCalcBench (9 166 Codex, OpenCode 1 2,067 tok
richlander/dotnet-inspect Tool to inspect .NET assets, like docker inspect and kubectl describe. 166 Claude Code, Codex, GitHub Copilot, OpenCode 10 2,168 tok
cognizant-ai-lab/neuro-san decisionai.ml Neuro AI System of Agent Networks 166 Claude Code, Codex, OpenCode 2 2,400 tok
langgenius/mosoo mosoo.ai Open-source managed runtime for OpenAI Codex, Claude Agent SDK, OpenCode, and Pi Agent. Ru 166 Codex, OpenCode 1 133 tok
slackapi/slack-skills-plugin docs.slack.dev Claude Code, Codex, Cursor, and npx skills plugin that enables your AI tools with a Slack 165 Claude Code, Codex, OpenCode 2 1,780 tok
benoror/obsidianos_work ObsidianOS - Work Vault 165 Claude Code, Codex, OpenCode 26 2,913 tok
yifanzz/claude-code-boost Claude Code Boost - Hook utilities for Claude Code with intelligent auto-approval 165 Claude Code, Codex, OpenCode 1 2,467 tok
fakechris/obsidian_vault_pipeline A automatic pipeline that processing obsidian vault by llm from pinbord, obsidian Clipper 165 Claude Code, Codex, OpenCode 2 4,284 tok
teleskopio/teleskopio teleskopio.github.io teleskopio is a lightweight kubernetes web client 165 Codex, OpenCode 1 828 tok
bkerler/ida_rpc IDA Pro RPC for assisted RE-tasks 165 Codex, OpenCode 1 3,914 tok
helpfeel/cosense-cli Release repository for the CLI and Agent Skill for reading, researching, and editing Cosen 165 Claude Code, Codex, OpenCode 3 810 tok
devantler-tech/ksail ksail.devantler.tech All-in-one Kubernetes SDK: create, manage, and operate clusters across distributions (Kind 164 Claude Code, Codex, GitHub Copilot, OpenCode 22 7,912 tok
madrzak/vidclaw vidclaw.com The OpenClaw Dashboard 🦞 164 Codex, OpenCode 1 634 tok
ricardoquesada/regenerator2000 regenerator2000.readthedocs.io An interactive disassembler for the CPU 6502, focused on Commodore 8-bit computers. Featur 164 Claude Code, Codex, OpenCode 16 4,257 tok
jmcentire/pact Contracts before code. Tests as law. Agents that can't cheat. 164 Claude Code, Codex, OpenCode 3 6,787 tok
dcosson/h2 An agent runner, messaging, and orchestration layer. 164 Claude Code, Codex, OpenCode 2 610 tok
sqmw/desk_tidy_sticky Cross-platform minimal multifunction sticky notes with workspace, focus timer, and break r 164 Codex, OpenCode 1 30 tok
joenandez/spectre Spectre is a battle-tested 6 stage agentic engineering workflow for building complex, prod 164 Claude Code, Codex, OpenCode 8 2,195 tok
aahl/skills skills.sh AAHL's Agent Skills. A collection of practical agent skills covering Home Assistant smart 164 Claude Code, Codex, OpenCode 2 8 tok
equinor/neqsim equinor.github.io NeqSim is a library for calculation of fluid behavior, phase equilibrium and process simul 164 Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf 7 6,433 tok
veniceai/skills Agent Skills for the Venice.ai API. One folder per surface area, each with a SKILL.md for 164 Codex, OpenCode 1 307 tok
oframe/ogpu oframe.github.io Minimal WebGPU Library 164 Claude Code, Codex, Gemini CLI, OpenCode 12 3,242 tok
BofAI/skills bankofai.io BANK OF AI Skills 164 Codex, OpenCode 1 2,278 tok
ash1794/vibe-engineering 33 engineering discipline skills for Claude Code, OpenAI Codex & Gemini CLI + a CLI for CI 164 Claude Code, Codex, Gemini CLI, OpenCode 3 1,591 tok
Joanium/Joanium joanium.com Your smart, reliable, and friendly personal AI assistant. 163 Claude Code, Codex, Gemini CLI, OpenCode 3 493 tok
millionco/localterm localterm.dev A terminal in your browser 163 Codex, OpenCode 1 773 tok
shuxueshuxue/SpexFlow Node-based workflow for orchestrating codebase context and specifications for AI agents. 163 Codex, OpenCode 1 341 tok
Khan/wonder-blocks khan.github.io React components for Wonder Blocks design system. 163 Claude Code, Codex, GitHub Copilot, OpenCode 11 14,901 tok