295 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 agents7,374Claude Code6,573Data and AI3,706Backend and APIs3,486Languages3,398Planning3,181Git and workflow3,100Code review2,701Memory and context2,354Research2,292DevOps and cloud2,282Writing and docs2,269
Any agent Claude CodeCodexOpenCodeGitHub CopilotGemini CLICursorWindsurfKiro
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| AvdLee/Swift-Testing-Agent-Skill An agent skill focused entirely on Swift Testing, helping you write better tests, migrate | 446 | GitHub Copilot | 1 | 1,068 tok |
| ShaftHQ/SHAFT_ENGINE shafthq.github.io Java test automation framework for web, mobile, API, CLI, database, and desktop E2E testin | 408 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 38 | 1,295 tok |
| mrwogu/promptscript getpromptscript.dev Prompt-as-Code for Enterprise AI. Standardize, audit, and deploy instructions across any A | 391 | Claude Code, Codex, GitHub Copilot, OpenCode | 31 | 7,772 tok |
| potatoqualitee/kbupdate 🛡 KB Viewer, Saver, Installer and Uninstaller | 390 | Claude Code, Codex, GitHub Copilot, OpenCode | 10 | 1,046 tok |
| fizzbee-io/fizzbee fizzbee.io Easiest-ever formal methods language! Designed for developers crafting distributed systems | 348 | Claude Code, GitHub Copilot | 7 | 5,657 tok |
| shenjingnan/xiaozhi-client xiaozhi-client.shenjingnan.com Xiaozhi AI client, currently mainly used for MCP integration | 338 | Claude Code, Codex, GitHub Copilot, OpenCode | 32 | 7,158 tok |
| bikeindex/bike_index bikeindex.org All the code for Bike Index, because we love you | 309 | Claude Code, Codex, GitHub Copilot, OpenCode | 21 | 3,380 tok |
| SAP/fundamental-ngx sap.github.io Fundamental Library for Angular is SAP Design System Angular component library | 294 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 18 | 5,983 tok |
| public-ui/kolibri public-ui.github.io The accessible HTML-Standard | 280 | Claude Code, Codex, GitHub Copilot, OpenCode | 8 | 9,758 tok |
| joshuadavidthomas/opencode-agent-skills An OpenCode plugin that provides tools for using agent skills | 273 | Claude Code, Codex, GitHub Copilot, OpenCode | 5 | 2,123 tok |
| storybookjs/mcp storybook-evals.vercel.app 🤖 | 270 | GitHub Copilot | 4 | 17,082 tok |
| DitriXNew/EDT-MCP MCP for 1C:EDT | 270 | Claude Code, GitHub Copilot | 15 | 3,654 tok |
| mariuz/flamerobin flamerobin.org FlameRobin is a database administration tool for Firebird RDBMS. Our goal is to build a to | 262 | Claude Code, Codex, GitHub Copilot | 2 | 1,376 tok |
| Azure/kimojio-rs A thread-per-core Linux io_uring async runtime for Rust optimized for latency. | 260 | Claude Code, Codex, GitHub Copilot | 2 | 225 tok |
| axa-group/oauth2-mock-server npmjs.com A development and test oriented OAuth2 mock server | 258 | Codex, GitHub Copilot, OpenCode | 2 | 2,265 tok |
| DIGI-UW/OpenELIS-Global-2 openelis-global.org OpenELIS Global — open-source Laboratory Information System (LIS/LIMS) for clinical and pu | 251 | Claude Code, Codex, GitHub Copilot, OpenCode | 32 | 23,972 tok |
| responsibleai/ASSERT responsibleai.github.io Requirement-driven evaluation harness for AI agents and LLM applications. Generate behavio | 236 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 7 | 6,087 tok |
| rcarmo/vibes rcarmo.github.io A simple mobile-focused chat app to talk to an agent via the ACP protocol | 190 | Codex, GitHub Copilot, OpenCode | 2 | 1,743 tok |
| phil65/agentpool phil65.github.io A unified agent orchestration hub that lets you configure and manage multiple AI agents (n | 185 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 3,723 tok |
| mehrandvd/skunit skUnit is a testing tool for AI units, such as IChatClient, MCP Servers and agents. | 181 | GitHub Copilot | 1 | 2,101 tok |
| outlmd/outl outl.app Local-first outliner. Markdown is the source of truth. Sync that doesn't corrupt your tree | 170 | Claude Code, GitHub Copilot | 20 | 22,544 tok |
| confluentinc/mcp-confluent | 167 | Claude Code, GitHub Copilot | 7 | 7,021 tok |
| stacklok/toolhive-studio stacklok.com ToolHive is an application that allows you to install, manage and run MCP servers and conn | 163 | Claude Code, Codex, GitHub Copilot, OpenCode | 12 | 2,784 tok |
| idavidov13/agentic-playwright Production-grade Playwright + TypeScript Scaffold for Agentic Testing. Harness for all maj | 161 | Claude Code, GitHub Copilot | 20 | 59,016 tok |
| KbWen/agentic-os Governance framework for AI coding agents. It runs them through a five-step workflow (plan | 157 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 55 | 4,982 tok |
| netdevops/hier_config hier-config.readthedocs.io Hierarchical Configuration | 149 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 2,245 tok |
| tacticlaunch/mcp-linear MCP server that enables AI assistants to interact with Linear project management system th | 146 | Claude Code, Codex, GitHub Copilot, OpenCode | 14 | 1,420 tok |
| AgentEvalHQ/AgentEval agenteval.dev AgentEval is the comprehensive .NET toolkit for AI agent evaluation—tool usage validation, | 140 | Claude Code, Codex, GitHub Copilot, OpenCode | 15 | 24,068 tok |
| dynamics365ninja/d365fo-mcp-server Exposes MCP tools that prove every method, field, label and form pattern against your real | 138 | Claude Code, GitHub Copilot | 7 | 2,316 tok |
| jamesmontemagno/ohmyposh-configurator configurator.ohmyposh.dev Design beautiful terminal prompts without touching configuration files | 132 | Claude Code, Codex, GitHub Copilot | 5 | 1,937 tok |
| NikiforovAll/github-copilot-rules nikiforovall.blog A collection of GitHub Copilot AI customizations and Best Practices | 131 | GitHub Copilot | 4 | 7,204 tok |
| microsoft/eval-guide A plugin for AI agent evaluation. Plan evals, generate test cases, interpret results for C | 128 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 3,504 tok |
| bartstc/vite-ts-react-template This project provides a basic dev setup intended for Single Page Application (SPA) develop | 121 | Claude Code, GitHub Copilot | 6 | 1,986 tok |
| traefikturkey/onramp Traefik with all the stuffing. Onramp is a docker compose setup designed to allow users to | 118 | Claude Code, GitHub Copilot | 13 | 4,277 tok |
| Aam-Digital/ndb-core aam-digital.com Easy-to-use case management web app for NGOs anywhere in the world (Progressive Web App) | 94 | Claude Code, Codex, GitHub Copilot, OpenCode | 13 | 8,553 tok |
| webern/mx C++ binding for MusicXML. | 93 | Claude Code, Codex, GitHub Copilot, OpenCode | 17 | 4,224 tok |
| swt-labs/vibe-better-with-claude-code-vbw Vibe Better With Claude Code - You're not an engineer anymore. You're a prompt jockey with | 80 | Claude Code, Codex, GitHub Copilot, OpenCode | 14 | 6,082 tok |
| scylladb/scylla-cluster-tests Tests for Scylla Clusters | 72 | Claude Code, Codex, GitHub Copilot, OpenCode | 7 | 9,228 tok |
| AzureAD/microsoft-authentication-library-common-for-objc Common code used by both the Active Directory Authentication Library (ADAL) and the Micros | 65 | Claude Code, GitHub Copilot | 2 | 923 tok |
| daryllabar/XrmUnitTest Xrm Unit Testing Framework With "In Memory" CRM server | 61 | GitHub Copilot, Cursor | 2 | 1,140 tok |
| DamianEdwards/copilotd copilotd.damianedwards.dev Auto-dispatch copilot CLI instances based on GitHub issues | 59 | Claude Code, Codex, GitHub Copilot | 2 | 1,292 tok |
| loiane/specs-driven-development-spring-angular Spec-Driven Development toolkit for Spring Boot 4 — tri-platform workflow (Claude Code · G | 58 | Claude Code, GitHub Copilot | 9 | 2,718 tok |
| ebibibi/ebi-agent-chat-relay Multi-frontend agent relay: run Claude Code, Codex, local, and AG-UI agents from Discord o | 56 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 16 | 7,573 tok |
| microsoft/BC-Bench microsoft.github.io Inspired by SWE-Bench, for Business Central (AL) ecosystem. | 56 | Claude Code, Codex, GitHub Copilot | 3 | 890 tok |
| 0xmariowu/AgentLint agentlint.app The linter for your agent harness. Works with Claude Code, Codex, and Cursor. | 55 | Claude Code, GitHub Copilot | 2 | 1,863 tok |
| Unsupervisedcom/deepwork | 50 | Claude Code, Codex, GitHub Copilot, OpenCode | 7 | 3,177 tok |
| sebastienrousseau/pain001 docs.pain001.com Generate and validate ISO 20022 payment files (pain.001 v03-v12, pain.008) from CSV, SQLit | 49 | Claude Code, GitHub Copilot | 7 | 5,335 tok |
| bitovi/convey bitovi.github.io Point-n-click vibe coding in your browser! Draw features, improve designs, report bugs. | 46 | Claude Code, Codex, GitHub Copilot | 21 | 2,187 tok |
| timothywarner/copilot-dev techtrainertim.com GitHub Copilot for Developers (Live Training Course) | 46 | Claude Code, Codex, GitHub Copilot, OpenCode | 16 | 8,592 tok |
| idoforgod/Church-Admin-AgenticWorkflow Church Administration AI Agentic Workflow Automation System | 45 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 44 | 40,238 tok |