31,984 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 |
|---|---|---|---|---|
| bcanfield/agentic-tech-debt skills.sh Every shortcut your coding agent takes, saved to your repo as it happens. Fix them when yo | 8 | Claude Code, Codex, OpenCode | 2 | 3,416 tok |
| StringKe/std-agent One .stdai/ source of truth, fanned out to 22 AI coding tools: Claude Code, Codex, Cursor, | 8 | Claude Code, Codex, OpenCode | 3 | 806 tok |
| pengzhangzhi/superpowers-ml Skills that make your AI agent do ML research like a skeptical scientist, not a hype machi | 8 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,913 tok |
| amitgambhir/claude-certified-architect-guide amitgambhir.github.io Study guide for the Claude Certified Architect exam — 10 domain pages, interactive quiz, t | 8 | Claude Code | 1 | 673 tok |
| vunm-io/passdown Shift-handover workflow for AI coding agents — capture ideas into an inbox, dispatch tasks | 8 | Claude Code, Codex, OpenCode | 1 | 1,280 tok |
| Advent-AI/truenorth-cli app.true-north.xyz Crypto market intelligence CLI — technical analysis, derivatives, DeFi, token performance, | 8 | Claude Code | 1 | 362 tok |
| kogakure/skills Collection of AI Agent Code skills | 8 | Claude Code, Codex, OpenCode | 2 | 519 tok |
| whenpoem/aiscientist An AI-driven research workflow for generating ideas, running experiments, and writing scie | 8 | Claude Code, Codex, OpenCode | 6 | 1,865 tok |
| twominutereports/marketing-skills Claude Marketing Skills for SEO, PPC, and ecommerce reporting, analysis, and automation vi | 8 | Claude Code, Codex, OpenCode | 2 | 1,185 tok |
| ysskrishna/ai-agent-skills Structured thinking skills for AI agents: brainstorming, decision support, systems thinkin | 8 | Claude Code, Codex, OpenCode | 2 | 2,500 tok |
| QuasarG/taste-bank tastebank.cloud An open-source frontend design manager. | 8 | Claude Code, Codex | 1 | — |
| AgenticFirst/Cerebro Cerebro is an open-source personal intelligence system for building AI experts, automating | 8 | Claude Code, Codex, OpenCode | 2 | 2,138 tok |
| MrBinnacle/azimuth mrbinnacle.github.io Decision-quality pre-commitment analysis. Hosted at azimuth-testbed.netlify.app — no insta | 8 | Claude Code | 2 | — |
| agents-inc/agents-inc An agent composition framework that builds stacks and compiles specialized subagents for C | 8 | Claude Code | 1 | 2,156 tok |
| Avierovich/openpitch avierovich.github.io Open, real-time, fully-sourced intelligence on AI startups — MCP-native, zero-cost. A free | 8 | Claude Code, Codex, OpenCode | 3 | 4,511 tok |
| muratmirgun/gophers 26 production-grade Go skills for Claude Code, Gemini CLI, and opencode. | 8 | Claude Code | 1 | 615 tok |
| d4rkNinja/infynon-cli cli.infynon.com Security-first Rust CLI for dependency risk scanning, API workflow testing, and shared cod | 8 | Claude Code, Codex, OpenCode | 2 | 997 tok |
| MikeyPetrillo/Agent402 agent402.tools agent402.tools: 500+ pay-per-call tools, metered models and finished reports for AI agents | 8 | Claude Code, Codex, Cursor, OpenCode | 2 | 997 tok |
| anmolnagpal/devops-skills Multi-tool DevOps skills for Claude Code, Cursor, and Codex — Terraform, Kubernetes, Docke | 8 | Claude Code | 1 | 3,536 tok |
| ivan-magda/uikit-expert-skill Agent skill for writing correct, modern UIKit code in Swift. Covers lifecycle, memory, con | 8 | Claude Code, Codex, OpenCode | 2 | 1,387 tok |
| amadeus-dlc/amadeus Agent skills, templates, examples, validators, and docs for operating Amadeus DLC, a lifec | 8 | Claude Code, Codex, OpenCode | 11 | 4,995 tok |
| sprngr/rubber-duck 🦆 Socratic assistant operating system for developers who want better-quality decisions, n | 8 | Claude Code, Codex, OpenCode | 2 | 1,517 tok |
| EricSanchezok/repo-seed Seed agent-native, self-governing repos: AGENTS.md, MADR decision logs, deterministic gate | 8 | Claude Code, Codex, OpenCode | 2 | 1,047 tok |
| smorinlabs/agent2linear agent2linear is a command-line interface for Linear designed to work seamlessly with both | 8 | Claude Code | 2 | 6,030 tok |
| hamza-ali-shahjahan/hamzaish hamzaish.com Open-source agent OS for Claude Code that puts you in Builder Mode — and keeps you there f | 8 | Claude Code, Codex, OpenCode | 5 | 10,328 tok |
| imboard-ai/ai-dossier dossier-registry.vercel.app Universal standard for LLM-executable automation | 8 | Claude Code, Codex, OpenCode | 2 | 754 tok |
| Karthick-Ramachandran/persist-os Local-first CLI that gives your repo durable, AI-ready memory - features, ADRs, modules, a | 8 | Claude Code, Codex, OpenCode | 2 | 1,426 tok |
| wenboxia/liangyi liangyi-five.vercel.app One idea, two opposing expert views, one synthesized decision. A Claude Code workflow for | 8 | Claude Code | 1 | 3,810 tok |
| sendx/email-skills SendX's best practices for message performance, email sending deliverability and complianc | 8 | Claude Code, Codex, OpenCode | 2 | 930 tok |
| ShaheerKhawaja/ProductionOS ProductionOS v1.0 — Claude Code plugin with 76 agents, 39 commands, and 12 hooks. Deploys | 8 | Claude Code, Codex, OpenCode | 2 | 5,986 tok |
| sakebomb/mcp-recall mcp-recall compresses MCP tool outputs (94 KB → 3.5 KB · 96%) and stores full results in S | 8 | Claude Code | 1 | 2,988 tok |
| young1lin/claude-token-monitor Claude Code Statusline plugin with support for Anthropic native quota display and Z.ai Cod | 8 | Claude Code | 2 | 4,931 tok |
| robertoecf/adversarial-review Review triad plugin for Claude Code: prompt optimization, adversarial red-team review, pla | 8 | Claude Code, Codex, OpenCode | 2 | 3,062 tok |
| luiseiman/dotforge Configuration governance for Claude Code. Bootstrap, audit, sync, and evolve .claude/ acro | 8 | Claude Code | 10 | 2,228 tok |
| zircote/csharp-lsp Claude Code plugin for C# development with OmniSharp LSP and dotnet format hooks | 8 | Claude Code | 1 | 202 tok |
| ninthwave-io/ninthwave ninthwave.sh Orchestrate parallel AI coding into reviewable PRs. | 8 | Claude Code | 1 | 1,812 tok |
| ZviBaratz/gnome-extension-reviewer Claude Code plugin for GNOME Shell extension EGO review compliance | 8 | Claude Code | 1 | 4,022 tok |
| sjnims/gen-alpha-output-style Claude Code plugin that transforms responses into Gen Alpha/brainrot internet slang. No ca | 8 | Claude Code | 1 | 624 tok |
| WaterTian/cc-hud npmjs.com Compact Claude Code statusline — zero-dependency, crash-free on Windows | 8 | Claude Code | 1 | 835 tok |
| gmickel/better-skill-builder Skill that teaches AI agents how to build Agent Skills for Claude Code, Codex, Amp, and Op | 8 | Claude Code, Codex, OpenCode | 2 | 360 tok |
| hariharapanigrahy/layerkit Evidence-first AI agent workbench for vendor API integrate & contract heal — real producti | 8 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,066 tok |
| GeiserX/cc-agents-md Load AGENTS.md into Claude Code sessions — no CLAUDE.md needed | 8 | Claude Code | 1 | 675 tok |
| ZachArticulateV/designer-pro-and-seo Free MIT Claude Code plugin for the web-design + SEO workflow: design systems, on-brand pa | 8 | Claude Code, Codex, OpenCode | 2 | 3,510 tok |
| MIMI180306/claude-persistent-memory mimi180306.github.io Give Claude Code persistent memory across sessions. Hybrid BM25 + vector semantic search, | 8 | Claude Code | 1 | 867 tok |
| kstonekuan/webskills WebSkills turns any webpage into an agent skill - npx webskills | 8 | Claude Code, Codex, OpenCode | 2 | 18 tok |
| leynier/telegram-cli pypi.org Agent-first Telegram CLI with structured JSON/JSONL and skills for Claude Code, Codex, Ant | 8 | Claude Code, Codex, OpenCode | 2 | 531 tok |
| igloude/ds-skills Agent skills to police AI-generated frontend work for design system conformance. | 8 | Claude Code | 1 | — |
| frankxai/Starlight-Intelligence-System starlightintelligence.org Sovereign AI substrate for memory, orchestration, skills, governance, and evals across Cla | 8 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 11,259 tok |
| SeongwoongCho/adaptive-harness A self-improving harness router for Claude Code. | 8 | Claude Code | 2 | 857 tok |
| Avyayalaya/agent-prime avyayalaya.github.io A persistent AI operating system. 13 specialized agents + a runtime-portable 5-agent quali | 8 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 12,325 tok |