22,053 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 agents7,521Claude Code6,606Data and AI3,688Backend and APIs3,494Languages3,401Planning3,209Git and workflow3,151Code review2,736Memory and context2,361Testing2,351DevOps and cloud2,300Writing and docs2,296Research2,295Frontend2,250Security2,004Productivity1,709
All Claude Code32,116 Codex23,280 OpenCode22,053 GitHub Copilot3,543 Gemini CLI1,915 Cursor1,736 Windsurf119 Kiro77
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| cz1993/MirrorArc cz1993.github.io Local-first, governed documentation for humans and AI agents—mirror Office, PDF, and GitHu | 101 | Codex, OpenCode | 1 | 731 tok |
| konnga/skill-buddy AI Skills Buddy, A desktop workspace for managing, installing, and synchronizing Skills an | 101 | Claude Code, Codex, OpenCode | 10 | 238 tok |
| jiangkoumo/toolfence Local, fail-closed policy enforcement and human approval for MCP tool calls. | 101 | Codex, OpenCode | 1 | 417 tok |
| zhagqn/agentwork | 101 | Codex, OpenCode | 1 | 807 tok |
| zhangjunmengyang/quant-research-platform quant research mcp backend | 101 | Claude Code, Codex, OpenCode | 2 | 3,569 tok |
| bwz96sco/or_llm_agent arxiv.org OR-LLM-Agent: Automating Modeling and Solving of Operations Research Optimization Problems | 101 | Claude Code, Codex, OpenCode | 2 | 1,468 tok |
| r-lib/log4r log4r.r-lib.org A fast & lightweight approach to logging in R based on the widely-emulated Apache Log4j pr | 101 | Claude Code, Codex, OpenCode | 2 | 1,253 tok |
| joe960913/Jixu jixu.dev Durable single-Agent Harness for TypeScript: recoverable Threads, context continuity, expl | 100 | Claude Code, Codex, OpenCode | 2 | 3,488 tok |
| csmar432/finai-research csmar432.github.io Evidence-first AI workflow for economic and financial research: literature → identificatio | 100 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 11,594 tok |
| LaurentZuijdwijk/agention-marshall Coding agent | 100 | Codex, OpenCode | 1 | 1,243 tok |
| phungkaizen/maintainer-autopilot Local-first, resumable AI maintenance pipelines with single-writer safety and deterministi | 100 | Codex, OpenCode | 1 | 320 tok |
| shixinnt/codex-image-context-runtime A Codex plugin and local MCP runtime for context-bounded image generation and inspection. | 100 | Codex, OpenCode | 1 | 286 tok |
| m6r-ai/humbug davehudson.io Humbug: building an operating system for human-AI collaboration | 100 | Codex, OpenCode | 1 | 3,649 tok |
| CreamyG31337/chrysalis-ioc-triage | 100 | Codex, OpenCode | 1 | 786 tok |
| xiangkehan/Fathom | 100 | Codex, OpenCode | 1 | 1,440 tok |
| LuckyKuang/codex-tokens-compress An experimental repository for compressing AGENTS.md files in AI collaboration scenarios: | 100 | Claude Code, Codex, OpenCode | 3 | 611 tok |
| 100yenadmin/fable-token-saving-skills-orchestrator 🧚 Fable-first Claude orchestration kit for token-saving lane routing, dense turns, and ca | 100 | Codex, OpenCode | 1 | 204 tok |
| pitiflautico/neobrowser pitiflautico.github.io MCP server that drives real Chrome with your real logged-in sessions — genuine fingerprint | 100 | Codex, OpenCode | 1 | 1,759 tok |
| voidhashcom/lensflare lensflare.vercel.app | 100 | Claude Code, Codex, OpenCode | 4 | 241 tok |
| c0x12c/ai-toolkit | 100 | Claude Code, Codex, OpenCode | 38 | 6,210 tok |
| aaronnat23/disp8ch Self-hosted AI workspace where chat becomes visual workflows, multi-agent operations, and | 100 | Codex, OpenCode | 1 | 227 tok |
| pymc-labs/decision-hub | 100 | Claude Code, Codex, OpenCode | 5 | 4,914 tok |
| dkyazzentwatwa/chatgpt-skills My comprehensive, tested + audited, library of skills to use for ChatGPT. | 100 | Claude Code, Codex, OpenCode | 2 | 851 tok |
| aspenkit/aspens npmjs.com Your CLAUDE.md stopped working at 200 lines. Generate scoped skill files from your import | 100 | Claude Code, Codex, GitHub Copilot, OpenCode | 34 | 3,436 tok |
| deepklarity/harness-kit A kit for building with AI agents and also the engineering patterns around it. | 100 | Claude Code, Codex, OpenCode | 5 | 7,548 tok |
| gaixianggeng/mimi-remote Open-source native iPhone/iPad client for OpenAI Codex CLI and Claude Code — review diffs, | 100 | Codex, OpenCode | 1 | 719 tok |
| ToxSam/open-source-avatars opensourceavatars.com A curated registry of free 3D VRM avatars for games, VR, and the metaverse | 100 | Codex, OpenCode | 1 | 712 tok |
| OneYoungMean/KimodoUnityBridge Free Local Unity AI Motion Generate Tool.Based By Nvlab Kimodo. | 100 | Codex, OpenCode | 1 | 82 tok |
| christopherarter/superpowers-reasonix Superpowers skill port to Reasonix coding harness. | 100 | Codex, OpenCode | 1 | 761 tok |
| manojbajaj95/claude-gtm-plugin Skills for GTM teams | 100 | Claude Code, Codex, OpenCode | 2 | 2,472 tok |
| yfedoseev/browser_oxide Stealth headless browser engine in Rust — native BoringSSL TLS/JA4 fingerprint, real JS vi | 100 | Claude Code, Codex, OpenCode | 2 | 1,256 tok |
| off-grid-ai/OGAD getoffgridai.co Off Grid AI — private, on-device AI. Run open models (text, vision, image, voice) locally | 100 | Claude Code, Codex, OpenCode | 3 | 4,835 tok |
| Kuadrant/mcp-gateway kuadrant.io An envoy-based MCP Gateway that integrates with Istio and policy attachment mechanisms for | 100 | Claude Code, Codex, OpenCode | 8 | 1,281 tok |
| d1vai/d1v-cli d1v.ai Experimental CLI for d1v.ai | 100 | Codex, OpenCode | 1 | 935 tok |
| wardmos/waybill Continue unfinished work across coding agents with portable handoff bundles. | 100 | Claude Code, Codex, OpenCode | 2 | 635 tok |
| mirror4869/material-workbench Open-source, local-first creative asset workbench for Windows—organize, find, review, and | 99 | Codex, OpenCode | 1 | 1,140 tok |
| soramitsu/fearless-Android fearlesswallet.io Fearless Wallet is a mobile wallet designed for the decentralized future on the Kusama and | 99 | Codex, OpenCode | 1 | 1,873 tok |
| dominik1001/caldav-mcp 🗓️ A CalDAV Model Context Protocol (MCP) server to expose calendar operations as tools fo | 99 | Claude Code, Codex, OpenCode | 3 | 440 tok |
| katopz/katgpt-rs A neuro-symbolic micro-Transformer with speculative decoding, constraint pruning, recurren | 99 | Claude Code, Codex, OpenCode | 9 | 13,049 tok |
| 10xChengTu/harness-engineering Set up and improve harness engineering (AGENTS.md, docs/, lint rules, eval systems, projec | 99 | Codex, OpenCode | 1 | 1,511 tok |
| dmccreary/ibook-skills dmccreary.github.io | 99 | Claude Code, Codex, OpenCode | 3 | 9,880 tok |
| antoinebou12/uml-mcp antoinebou12.github.io UML-MCP Server is a UML diagram generation tool based on MCP (Model Context Protocol), whi | 99 | Codex, OpenCode | 1 | 374 tok |
| techwolf-ai/ai-first-toolkit ai-first.techwolf.ai Open-source Claude Code skills and Codex skills for AI-first work. Audit, re-engineer, and | 99 | Claude Code, Codex, OpenCode | 1 | 649 tok |
| ingo-eichhorst/Irrlicht Claude Code session lights in your macOS menu bar — 🟣 🟠 🟢 ✦ | 99 | Claude Code, Codex, OpenCode | 18 | 4,073 tok |
| nguyenyou/scalex nguyenyou.github.io Scala code intelligence for coding agents. Zero Build Server. Zero Compilation. Just answe | 99 | Claude Code, Codex, OpenCode | 4 | 5,899 tok |
| harness/mcp-server Harness’ official MCP Server | 99 | Claude Code, Codex, OpenCode | 2 | 2,002 tok |
| eunomia-bpf/ActPlane eunomia.dev eBPF Information Flow Enforcement for AI Agent safety, security and effectiveness | 99 | Claude Code, Codex, OpenCode | 6 | 2,143 tok |
| interviewstreet/hackerrank-orchestrate-august26 | 99 | Claude Code, Codex, OpenCode | 2 | 2,122 tok |
| kawayiYokami/P-ai A ready-to-use self-growing desktop AI assistant for long-running tasks, memory, agents, t | 99 | Codex, OpenCode | 1 | 5,527 tok |
| timrogers/formanator Submit and manage Forma (https://joinforma.com) claims from the command line and Model Con | 98 | Codex, OpenCode | 1 | 471 tok |