Building agents

4,715 projects whose own agent configuration covers building agents. These are not mods to install — they are how the maintainers of these repositories tell an agent what to do, and what to avoid.

All projects Claude Code6,573Data and AI3,706Backend and APIs3,486Languages3,398Planning3,181Git and workflow3,100Code review2,701Memory and context2,354Testing2,311Research2,292DevOps and cloud2,282Writing and docs2,269

Any agent Claude CodeCodexOpenCodeGitHub CopilotGemini CLICursorWindsurfKiro

ProjectStarsConfiguresFilesAlways loaded
withkynam/vibecode-pro-max-kit Your AI forgets. This remembers. Spec-driven coding harness for vibecoders, product owners 1,117 Claude Code, Codex, OpenCode 56 15,545 tok
deanpeters/product-manager-prompts A repository of Generative AI prompts for product managers using agents such as ChatGPT, C 1,114 Claude Code, Codex, OpenCode 2 5,704 tok
codestable/CodeStable codestable.dev CodeStable is an AI coding workflow for serious software engineering that keeps humans in 1,112 Claude Code, Codex, OpenCode 4 2,188 tok
agentlas-ai/Agentlas-OS agentlas.cloud Agent OS: keep specialist agents in a hub, spin up a temporary orchestrator per task. Loca 1,103 Claude Code, Codex, Gemini CLI, OpenCode 3 7,327 tok
daangn/seed-design seed-design.io SEED Design System 1,094 Claude Code, Codex, OpenCode 10 935 tok
openclaw/agent-skills Useful skills for agents and claws. 1,080 Codex, OpenCode 1 173 tok
lee-to/ai-factory aif.cutcode.dev You want to build with AI, but setting up the right context, prompts, and workflows takes 1,076 Codex, OpenCode 1 9,466 tok
marcus/sidecar Use sidecar next to CLI agents for diffs, file trees, conversation history, and task manag 1,054 Claude Code, Codex, Gemini CLI, OpenCode 3 4,460 tok
northword/zotero-format-metadata Linter for Zotero. A plugin for Zotero to format item metadata. Shortcut to set title rich 1,045 Claude Code, Codex, OpenCode 2 2,140 tok
jonwiggins/optio optio.host Workflow orchestration for AI coding agent swarms, from task to merged PR. 1,043 Claude Code, Codex, OpenCode 2 6,860 tok
fancyboi999/ai-engineering-from-scratch-zh aieng-zh.cn The most comprehensive learning path for Agent engineers · Master AI engineering from scra 1,043 Claude Code, Codex, OpenCode 9 1,862 tok
NVIDIA/cuopt docs.nvidia.com GPU accelerated decision optimization 1,034 Codex, GitHub Copilot, OpenCode, Windsurf 3 920 tok
GoogleChrome/modern-web-guidance-src goo.gle 1,020 Claude Code, Codex 10
marcus/nightshift Nightshift uses your leftover Claude / Codex budget to surprise you with useful PRs. Love 1,011 Claude Code, Codex, OpenCode 2 469 tok
AlmanacCode/codealmanac codealmanac.com A codebase wiki for AI coding agents. Captures what the code can't say: decisions, flows, 994 Claude Code, Codex, OpenCode 5 3,548 tok
Azure-Samples/AI-Gateway aka.ms Labs to explore AI Models, MCP servers, and Agents with the AI Gateway powered by Azure AP 983 Claude Code, Codex, OpenCode 8 1,322 tok
agent-sh/agentsys agent-sh.github.io AI writes code. This automates everything else · 24 plugins · 49 agents · 44 skills · for 982 Claude Code, Codex, Kiro, OpenCode 31 3,475 tok
iamfakeguru/agent-md Production-grade agent directives for autonomous coding agents: Claude Code, Codex, Cursor 966 Claude Code, Codex 7 2,314 tok
Human-Agent-Society/CORAL coral.compounding-intelligence.ai Open-source autoresearch powered by autonomous coding agents. Run Claude Code, OpenCode, a 959 Claude Code, Codex, OpenCode 6 6,180 tok
toonight/get-shit-done-for-antigravity 942 Claude Code, Codex 17
opentabs-dev/opentabs opentabs.dev Browser automation clicks buttons. OpenTabs calls APIs. 933 Claude Code, Codex, OpenCode 5 13,599 tok
JuliusBrussee/caveman-code caveman.so Frozen — terminal coding agent measured at 1.93× fewer tokens than Codex CLI. Still works; 932 Claude Code, Codex, OpenCode 2 3,776 tok
voicetreelab/voicetree voicetree.io The spatial IDE for recursive multi-agent orchestration. It's like an Obsidian graph-view 920 Claude Code, Codex, OpenCode 3 2,232 tok
SethGammon/Citadel sethgammon.github.io The operating layer for Claude Code + OpenAI Codex: persistent project memory, intent rout 918 Claude Code, Codex, OpenCode 2 1,579 tok
milisp/codexia milisp.dev Lightweight Agent Workstation for Codex CLI + Claude Code — with task scheduler, git workt 914 Claude Code, Codex, OpenCode 2 659 tok
snowdreamtech/frp Docker Images for Frp. 908 Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode 22 2,343 tok
thedaviddias/llms-txt-hub llmstxthub.com 🤖 The largest directory for AI-ready documentation and tools implementing the proposed ll 902 Claude Code, Codex, Cursor, OpenCode 3 1,307 tok
friuns2/codex-mobile friuns2.github.io 🚀 Run Codex Mobile Anywhere: Linux, Windows, or Termux on Android 🚀 897 Claude Code, Codex, OpenCode 5 2,689 tok
awslabs/agent-plugins Agent Plugins for AWS equip AI coding agents with the skills to help you architect, deploy 890 Claude Code, Codex, GitHub Copilot, OpenCode 5 3,014 tok
hashicorp/agent-skills A collection of Agent skills and Claude Code plugins for HashiCorp products. 864 Codex, OpenCode 1 446 tok
alibaba/skill-up alibaba.github.io An evaluation and evolution tool for Agent Skills. 862 Claude Code, Codex, OpenCode 2 2,416 tok
kunchenguid/backpass You don't write AGENTS.md. You train it with gradient descent. 861 Claude Code, Codex, OpenCode 2 6,577 tok
getsentry/sentry-mcp mcp.sentry.dev An MCP server for interacting with Sentry via LLMs. 844 Claude Code, Codex, Cursor, OpenCode 24 1,276 tok
GetStream/stream-chat-react getstream.io React Chat SDK ➜ Stream Chat 💬 842 Claude Code, Codex, Cursor, OpenCode 13 6,673 tok
suleimanodetoro/skills Agent skills for interface design, React, React Native, and software security. 842 Codex, OpenCode 1 505 tok
jrswab/axe docs.getaxe.dev A lightweight cli for running single-purpose AI agents. Define focused agents in TOML, tri 838 Claude Code, Codex, OpenCode 2 3,130 tok
TheGreenCedar/codex-autoresearch A codex plugin for running optimization loops inside a codebase. It is useful when you hav 836 Codex, OpenCode 1 2,034 tok
lucky-aeon/AgentX AgentX aims to let beginners build their own Agents through natural language with no barri 834 Claude Code, Codex, OpenCode 9 9,184 tok
opendev-to/opendev Open-Source Coding Agent in the terminal 832 Claude Code, Codex, OpenCode 2 2,436 tok
vercel-labs/ralph-loop-agent ai-sdk.dev Continuous Autonomy for the AI SDK 830 Codex, OpenCode 1 532 tok
AltanS/collie colliepwa.dev PWA to manage 🐑 herdr on the go. Tailnet accessible, push notifications, quick actions an 830 Claude Code, Codex, OpenCode 4 10,132 tok
utensils/mcp-nixos mcp-nixos.io MCP-NixOS - Model Context Protocol Server for NixOS resources 825 Claude Code, Codex, GitHub Copilot, OpenCode 9 4,315 tok
warpdotdev/oz-skills 823 Claude Code, Codex, OpenCode 16 908 tok
heurist-network/heurist-agent-framework agent.heurist.ai A flexible multi-interface AI agent framework for building agents with reasoning, tool use 823 Claude Code, Codex, OpenCode 2 1,544 tok
tolibear/goalbuddy goalbuddy.dev A better /goal for Codex and Claude Code 818 Claude Code, Codex, OpenCode 1 628 tok
H-mmer/pentest-agents Bug bounty agent framework for Claude Code, Codex, Gemini, Cursor, Windsurf, Copilot, and 817 Claude Code, Codex, GitHub Copilot, OpenCode 17 63,845 tok
AgentWorkforce/relay agentrelay.com Real time communication for agents. Wake on message, channels, DMs and actions. Useful for 813 Claude Code, Codex, Gemini CLI, OpenCode 4 2,090 tok
featurevisor/featurevisor featurevisor.com Feature flags, experiments, and remote config management with version control 806 Codex, OpenCode 1 666 tok
PaulJPhilp/EffectPatterns effect-patterns.vercel.app A community-driven knowledge base of practical patterns for Effect-TS. 796 Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode 7 7,115 tok
sirkirby/unifi-mcp unifimcp.com MCP servers for the UniFi suite of applications, Network, Protect, Access, and Drive 792 Claude Code, Codex, GitHub Copilot, OpenCode 17 5,363 tok