How real projects configure their agents

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
CAIRNepal/heritagegraph cairnepal.github.io 3 Claude Code, Codex, OpenCode 2 5,307 tok
snyk-labs/snyk-vulnbench 3 Claude Code, Codex, OpenCode 12 2,521 tok
marcello-a/Planchette Planchette — points you to the session that speaks. A native terminal IDE for running many 3 Claude Code, Codex, OpenCode 1 2,650 tok
leancoderkavy/meepo A local, privacy-first AI agent (Rust) that connects LLMs to your email, calendar, browser 3 Claude Code, Codex, Cursor, OpenCode 3 3,624 tok
projectbluefin/testsuite projectbluefin.github.io Cloud-native QA pipeline for Project Bluefin — Argo Workflows + KubeVirt + qecore/behave A 3 Claude Code, Codex, GitHub Copilot, OpenCode 5 2,782 tok
prewsh/seo-aeo-engine An Antigravity AI skill designed to generate high-converting landing pages optimized for S 3 Claude Code, Codex 8
Aidas-dev/k8s-agent-skills git.kubexa.tech Agent skills for Kubernetes cluster operations — Cilium, Talos, Flux, Rook-Ceph, CNPG, Git 3 Codex, OpenCode 1 333 tok
konflux-ci/loadtest Konflux loadtest for per&scale testing the platform 3 Claude Code, Codex, Gemini CLI, OpenCode 6 563 tok
singleton11/kotlin-toolchain-skills A collection of AI agent skills for Kotlin Toolchain 3 Claude Code, Codex, OpenCode 2 20 tok
RedHatInsights/nxtcm-components Shared React component library for Red Hat Insights ACM and OCM projects built with Patter 3 Claude Code, Codex, OpenCode 10 696 tok
athallarizky/agent-playbooks A personal collection of reusable AI agent workflows — a briefing for AI agents that encod 3 Codex, OpenCode 1 987 tok
HighScientist/drug-designer-skill Claude Code and Codex Skill for Computational Drug Discovery: analysis, workflow design, c 3 Codex, OpenCode 1 600 tok
amohamma8029/devlog A Go-based CLI/TUI tool for async coding partners. 3 Codex, OpenCode 1 1,216 tok
Haohaha-11/Paper-Writing 3 Codex, OpenCode 1 243 tok
cantian-ai/agent-skill 3 Codex, OpenCode 1 1,950 tok
hanthor/gnome-gui-spec 3 Codex, OpenCode 1 122 tok
eparodi/deepcut-skills Useful skills to use with deepseek and Zed editor. 3 Codex, OpenCode 1 13,406 tok
vanities/social-skills Skill-driven social media automation across IG / LinkedIn / X / Pinterest / TikTok via Cla 3 Claude Code, Codex, OpenCode 2 6,807 tok
konflux-ci/mintmaker-renovate-image A repo useful to host and build the mintmaker container image 3 Codex, OpenCode 1 347 tok
mercato-supply-chain/mercato-dapp mercatocapital.xyz MERCATO is a supply chain finance application: it helps small and medium businesses (we us 3 Claude Code, Codex, OpenCode 6 3,818 tok
openshift-kni/rds-analyzer 3 Claude Code, Codex, OpenCode 2 8,155 tok
kyleve/Stuff Random apps and stuff 3 Claude Code, Codex, OpenCode 10 10,570 tok
VoidX3D/RU_Club_Website ruclubmotherland.vercel.app Official website for Motherland RU Club — a student environmental squad from Pokhara, Nepa 3 Codex, OpenCode 2 3,856 tok
k1wi777/my-harness-SDD A custom harness for the professional use of tools and AI agents, based on a spec-driven d 3 Codex, OpenCode 1 1,309 tok
CBNU-TeamH/RMF-Block Re-arrangeable Markdown Fabric block based note-taking app 3 Claude Code, Codex, OpenCode 2 2,338 tok
kokodak/hanji kokodak.github.io Hanji 韓紙, a super lightweight Markdown editor. 3 Claude Code, Codex, OpenCode 2 963 tok
NetApp/gcnv-mcp-server MCP server for provisioning and managing NAS and iSCSI volumes using Google Cloud NetApp V 3 Claude Code, Codex, Gemini CLI, OpenCode 3 23,364 tok
pajew-ski/temet-nosce pajew.ski A self-explaining knowledge graph. No embeddings, no vector DB. Just Markdown, an index, a 3 Codex, OpenCode 1 6,257 tok
ianandersonlol/HiveTransition 3 Claude Code, Codex, OpenCode 2 2,663 tok
QTtrash/tarkov-map signal.mouchsiadis-solutions.com Local-first Escape from Tarkov map intelligence and end-to-end encrypted squad position sh 3 Codex, OpenCode 1 353 tok
tembo/docs 3 Codex, OpenCode 1 1,052 tok
aaronvanston/thinking-vault-template Sanitized, shareable template for an Obsidian/Markdown thinking vault — structure, convent 3 Claude Code, Codex, OpenCode 2 154 tok
ai-integr8tor/agent0ai-dox 3 Codex, OpenCode 1 820 tok
muqeetmughal/db_tools A Frappe App For Database Level Tools and Utilities 3 Codex, OpenCode 1 3,025 tok
jonanderson10/enhanced-opencode-prompt-stack A provider-agnostic replacement for OpenCode's built-in system prompts with best practices 3 Codex, OpenCode 1 576 tok
romelllo/mipt-python-2026 3 Claude Code, Codex, OpenCode 2 1,984 tok
fco3lho/unlazier-ai OpenCode and Claude Code rules to eliminate lazy coding, behavioral principles, code quali 3 Claude Code, Codex, OpenCode 2 1,425 tok
jiki-education/front-end 3 Claude Code, Codex, OpenCode 4 4,082 tok
mithunyc/obsidian-agent-memory A production-grade memory system for AI coding agents. Context Capsules, Tiered Retrieval, 3 Claude Code, Codex, Gemini CLI, OpenCode 3 496 tok
abexiong/govafy-unsolicited-proposal-kit A plain-English playbook for small businesses writing federal unsolicited proposals under 3 Claude Code, Codex, OpenCode 2 4,953 tok
Affitor/agent-skills AI agent instructions for integrating Affitor affiliate tracking. Works with Claude Code, 3 Codex, OpenCode 1 327 tok
gatalifeltd/economizer-skills Token-economy guidelines for coding agents — cut wasted output, reduce cost (Claude, Curso 3 Claude Code, Codex, OpenCode 2 178 tok
elmoritz/agents-skills-setup elmoritz.github.io 3 Claude Code, Codex, OpenCode 25 2,647 tok
weante/city-salary City salary calculator Agent Skill: Calculates social security, housing provident fund, in 3 Codex, OpenCode 1 1,640 tok
intentdriven/abcd abcdev.app abcd: An experimental configuration layer for intent-driven development. 3 Claude Code, Codex, Gemini CLI, OpenCode 3 6,013 tok
AsterCommunity/AptS-1548 3 Codex, OpenCode 1 400 tok
TidyFactor/Cinematic tidyfactor.com Produce high-impact, scroll-driven product films and luxury Cinematic Landing pages. 3 Claude Code, Codex, OpenCode 20 3,385 tok
hanzixuan58521/zixuan-agent-constitution A personal AI agent constitution combining Occam's razor, first principles, beginning with 3 Codex, OpenCode 1 3,941 tok
serenashenn3-art/wechat-forensic-pro wechat-forensic-pro 3 Claude Code, Codex, Cursor, Gemini CLI, OpenCode 4 13,264 tok
8Dionysus/aoa-agents Role and persona layer for AoA: explicit agent profiles, role contracts, handoff rules, me 3 Codex, OpenCode 1 1,225 tok