2,618 projects whose own agent configuration covers testing. 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 Building agents8,369Claude Code6,848Data and AI3,594Git and workflow3,550Backend and APIs3,545Languages3,459Planning3,305Code review2,872DevOps and cloud2,444Writing and docs2,443Memory and context2,373Research2,311
Any agent Claude CodeCodexOpenCodeGitHub CopilotGemini CLICursorWindsurfKiro
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| stacklok/toolhive-studio stacklok.com ToolHive is an application that allows you to install, manage and run MCP servers and conn | 173 | Claude Code, Codex, GitHub Copilot, OpenCode | 12 | 2,784 tok |
| agiletec-inc/airis-mcp-gateway | 173 | Claude Code | 5 | 388 tok |
| wbern/agent-instructions Claude Instructions Repository | 168 | Claude Code | 34 | 1,813 tok |
| confluentinc/mcp-confluent | 168 | Claude Code, GitHub Copilot | 7 | 7,021 tok |
| eric-tramel/slop-guard eric-tramel.github.io Slop Scoring to Stop Slop | 167 | Claude Code, Codex, OpenCode | 3 | 632 tok |
| buer2233/ai-api-test-skill AI API test automation Skill: for Python + pytest + requests, driving Codex / Claude Code | 167 | Claude Code, Codex, OpenCode | 4 | 3,958 tok |
| bifrost-proxy/bifrost bifrost-proxy.github.io Bifrost is a high-performance, AI-friendly proxy server written in Rust. It provides power | 167 | Claude Code, Codex, OpenCode | 10 | 16,937 tok |
| tpavanipradeep/everything-claude-code Copy of affaan-m/everything-claude-code | 167 | Claude Code, Codex, OpenCode | 58 | — |
| explyt/spring-plugin explyt.ai Spring Explyt — free, open-source (Apache-2.0) Spring & Spring Boot plugin that brings Ult | 166 | Codex, OpenCode | 1 | 1,121 tok |
| shirenchuang/agentbro agentbro.net A macOS Dynamic Island for AI coding agents: Claude Code, Codex, Gemini CLI, Cursor, hooks | 165 | Claude Code, Codex, OpenCode | 5 | 1,558 tok |
| millionco/localterm localterm.dev A terminal in your browser | 165 | Codex, OpenCode | 1 | 773 tok |
| dynamics365ninja/d365fo-mcp-server Exposes MCP tools that prove every method, field, label and form pattern against your real | 165 | Claude Code, GitHub Copilot | 7 | 2,357 tok |
| ash1794/vibe-engineering 33 engineering discipline skills for Claude Code, OpenAI Codex & Gemini CLI + a CLI for CI | 165 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,591 tok |
| jmcentire/pact Contracts before code. Tests as law. Agents that can't cheat. | 164 | Claude Code, Codex, OpenCode | 3 | 6,787 tok |
| padamson/playwright-rust playwright-rust.dev Rust language bindings for Microsoft Playwright | 164 | Claude Code | 6 | 4,252 tok |
| heygen-com/heygen-cli developers.heygen.com Create AI videos from the terminal. Official CLI for the HeyGen video generation API. | 164 | Claude Code, Codex, OpenCode | 4 | 1,922 tok |
| oaslananka/kicad-mcp-pro oaslananka.github.io MCP server for KiCad, connecting AI agents to schematic and PCB workflows, ERC/DRC validat | 164 | Claude Code, Codex, GitHub Copilot, OpenCode | 10 | 822 tok |
| yorkie-team/yorkie-js-sdk yorkie.dev Yorkie JavaScript SDK | 163 | Claude Code | 3 | 1,015 tok |
| dcosson/h2 An agent runner, messaging, and orchestration layer. | 163 | Claude Code, Codex, OpenCode | 2 | 610 tok |
| Margin-Lab/evals marginlab.ai Fast, robust, configurable agent evals | 162 | Claude Code, Codex | 3 | — |
| st0012/cctop cctop.app A keyboard-first menubar app to monitor and jump between AI coding sessions — minimum setu | 161 | Claude Code, Codex, OpenCode | 10 | 2,147 tok |
| asdf17128/bili-webos 📺 Open-source Bilibili (哔哩哔哩) client for LG webOS TVs — DASH up to 4K/HDR, danmaku, bangu | 161 | Claude Code | 2 | 1,106 tok |
| DanielSuo117/velocitai Next-generation UI automation harness powered by Python & Playwright. Chat with AI Agents | 158 | Claude Code, Codex, Gemini CLI, OpenCode | 7 | 2,193 tok |
| Vortiago/mcp-outline A Model Context Protocol (MCP) server enabling AI assistants to interact with Outline docu | 158 | Claude Code | 4 | 4,623 tok |
| Open-Document-Alliance/PDF-Tools opendocuments.ai Fill, sign, merge, split, and extract PDFs from Claude Desktop and other MCP hosts. Maint | 158 | Claude Code, Codex, OpenCode | 2 | 11,594 tok |
| ProfSynapse/nexus | 158 | Claude Code, Codex, OpenCode | 13 | 8,823 tok |
| wvlet/wvlet wvlet.org Wvlet: a flow-style query language that compiles to SQL for DuckDB, Trino, Snowflake, and | 158 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 5 | 9,031 tok |
| AgentEvalHQ/AgentEval agenteval.dev AgentEval is the comprehensive .NET toolkit for AI agent evaluation—tool usage validation, | 157 | Claude Code, Codex, GitHub Copilot, OpenCode | 15 | 24,461 tok |
| Strategic-Automation/violin strategic-automation.github.io Supervised, Hermes-native penetration testing profile with 35 routed playbooks, guarded ta | 157 | Codex, OpenCode | 1 | 2,590 tok |
| go-to-k/cdkd Drop-in CDK CLI for existing CDK apps — up to 15x faster deploys via direct AWS SDK calls | 156 | Claude Code, Codex, OpenCode | 22 | 3,009 tok |
| andrew-yangy/gru-ai Autonomous AI agent team for one-man companies. Context engineering + harness engineering | 156 | Claude Code | 26 | 1,254 tok |
| askie/grix grix.im Grix : Work with agents like talking to people. | 156 | Claude Code, Codex, OpenCode | 5 | 525 tok |
| UiPath/coder_eval coder-eval.com Playwright for coding agents. Test that your skills, MCP servers, and CLIs actually work w | 155 | Claude Code | 1 | 4,826 tok |
| SalesforceAIResearch/MCPEval MCP-based Agent Deep Evaluation System | 155 | Claude Code | 1 | 2,310 tok |
| FangYuan33/easy-code-reader pypi.org A powerful MCP server for intelligently reading Jar source code. | 154 | Codex, GitHub Copilot, OpenCode | 3 | 1,447 tok |
| ambient-code/agentready ambient-code.github.io Repo Optimizer: Assess git repositories for AI-assisted development readiness. Submit your | 154 | Claude Code, Codex, OpenCode | 18 | 620 tok |
| serpro69/claude-toolbox serpro69.github.io Minimal by design, explicitly multi-lang, production-ready and battle-tested collection of | 154 | Claude Code, Codex, OpenCode | 3 | 6,979 tok |
| hwfengcs/DM-Code-Agent Local-first, auditable Python code agent. Ships its own 30-task hidden-test benchmark plus | 153 | Codex, OpenCode | 1 | 1,264 tok |
| OriginProtocol/origin-dollar originprotocol.com OUSD and OETH are stablecoins that passively accrue yield while you are holding it | 153 | Claude Code, Codex, OpenCode | 9 | 5,098 tok |
| netdevops/hier_config hier-config.readthedocs.io Hierarchical Configuration | 152 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 2,251 tok |
| calf-ai/calfkit-sdk 🐮 Build distributed, event-driven agents | 150 | Claude Code, Codex | 7 | — |
| chattermate/chattermate.chat chattermate.chat Open-source AI customer support platform — AI chatbot with human handoff, Shopify & Slack | 150 | Claude Code | 1 | — |
| undeadlist/claude-code-agents Claude Code Agents Prompt templates for Claude Code's subagent system. Run parallel code a | 149 | Claude Code | 1 | 1,462 tok |
| ArchiveBox/abx-dl abx-dl.archivebox.io ⬇️ A simple all-in-one CLI tool to download EVERYTHING from a URL (like youtube-dl/yt-dlp, | 149 | Claude Code, Codex, OpenCode | 2 | 1,276 tok |
| kbrdn1/gwm-cli gwm.kbrdn.dev Git worktree manager for the terminal: CLI + TUI in Rust. Creates the worktree, runs your | 149 | Claude Code, Codex, OpenCode | 2 | 4,714 tok |
| anhtester/antigravity-testing-kit anhtester.com Đây là bộ SKILL, WORKFLOW, RULE do Anh Tester xây dựng dành riêng cho cộng đồng Tester để | 149 | Gemini CLI | 1 | 3,029 tok |
| tacticlaunch/mcp-linear MCP server that enables AI assistants to interact with Linear project management system th | 148 | Claude Code, Codex, GitHub Copilot, OpenCode | 16 | 1,420 tok |
| jolliai/jolliai jolli.ai Jolli Memory automatically turns your AI coding sessions into structured development docum | 148 | Claude Code, Codex, OpenCode | 2 | 25,790 tok |
| herald-email/herald-mail-app Herald is a terminal email client and inbox cleanup tool with IMAP, AI-assisted triage, MC | 148 | Claude Code, Codex, OpenCode | 8 | 10,502 tok |
| ljxpython/ai-agent-platform AI agent platform development—using testing as an example, this project builds a practical | 148 | Codex, OpenCode | 4 | 5,140 tok |