1,913 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 agents7,473Claude Code6,589Data and AI3,693Backend and APIs3,491Languages3,403Planning3,201Git and workflow3,131Code review2,731Memory and context2,354DevOps and cloud2,298Research2,288Writing and docs2,284
Any agent Claude CodeCodexOpenCodeGitHub CopilotGemini CLICursorWindsurfKiro
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| holgerleichsenring/agent-smith agent-smith.org Self-hosted AI coding agent · ticket → code → PR | 23 | Claude Code | 4 | 2,473 tok |
| serialx/vibecore Build your own AI-powered automation tools in the terminal with this extensible agent fram | 23 | Claude Code, Codex, OpenCode | 6 | 8,326 tok |
| Accenture/AutoFixture.XUnit2.AutoMock Autofixture auto-mocking for XUnit2 using a mocking library of your choice. | 23 | Claude Code, Codex, OpenCode | 2 | 4,228 tok |
| yamafaktory/formal A Lean 4 + Mathlib proof service for the agent working on your code | 23 | Claude Code | 2 | 814 tok |
| gaia-react/gaia gaiareact.com The Claude-native foundation you build your whole app on. React frontend handled, your bac | 23 | Claude Code | 55 | 668 tok |
| modeled-information-format/mnemonic Persistent filesystem-based memory system for Claude Code. Pure MIF Level 3 compliant memo | 23 | Claude Code, GitHub Copilot | 7 | 812 tok |
| htest-dev/htest htest.dev Declarative, boilerplate-free unit testing | 23 | Claude Code | 1 | 1,199 tok |
| AlphaBitCore/nexus-gateway alphabitcore.com Enterprise AI traffic gateway — unified compliance, routing across 20+ LLM providers, sema | 23 | Claude Code | 18 | 6,752 tok |
| stevengonsalvez/agents-in-a-box stevengonsalvez.github.io context engineering for agentic coding | 23 | Claude Code, Codex, OpenCode | 6 | 729 tok |
| sean-galloway/RTLDesignSherpa rtldesignsherpa.com This site is hopefully a springboard for others to learn about coding in System Verilog an | 23 | Claude Code | 26 | 3,737 tok |
| ivfarias/ceo The CEO Agent Orchestration System | 22 | Claude Code, Codex | 42 | — |
| zhu-kai/whodecided CLI that distills the silent decisions your AI coding agents make into a reviewable ledger | 22 | Claude Code, Codex, OpenCode | 9 | 1,372 tok |
| nitsan-technologies/ns_t3af t3planet.de MCP-first AI foundation for TYPO3. Bring AI agents into TYPO3, on your terms. | 22 | Claude Code, Codex, OpenCode | 5 | 1,033 tok |
| huyphan13189/QE-AI | 22 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 17 | 10,209 tok |
| hev/vibecheck vibescheck.io Fast and intuitive evals on any LLM | 22 | Claude Code, Cursor | 2 | 3 tok |
| mdcms-ai/mdcms mdcms.ai The AI Content Engine. | 22 | Claude Code, Codex, OpenCode | 17 | 3,342 tok |
| sapiencexyz/sapience sapience.xyz | 22 | Claude Code, Codex, OpenCode | 7 | 1,735 tok |
| NeuralNotwerk/cgg Offline multi-language call graph generator in Rust — point at any folder, get a graph. | 22 | Claude Code | 3 | 6,339 tok |
| harness-base/harness-control | 22 | Claude Code, Codex, OpenCode | 37 | 2,227 tok |
| ubie-oss/dbt-data-privacy A dbt package to enhance data privacy | 22 | Claude Code, Codex, OpenCode | 6 | 296 tok |
| posit-dev/py-shiny-site shiny.posit.co The documentation website for Shiny for Python | 22 | Claude Code | 3 | 6,135 tok |
| adam-s/testing-claude-agent Probabilistic benchmarking of .claude/ instruction sets for Claude Code token efficiency | 22 | Claude Code | 1 | 260 tok |
| freeformz/paperless-ngx-mcp MCP server for Paperless-ngx document management | 22 | Claude Code | 3 | 875 tok |
| nerdsane/bloodhound Deterministic simulation testing platform for hunting bugs in distributed systems | 22 | Claude Code | 1 | 7,861 tok |
| tiago-peixoto/claude-shapeup | 22 | Claude Code | 2 | 1,296 tok |
| cyril0124/verilua cyril0124.github.io Verilua: An Open Source Versatile Framework for Efficient Hardware Verification and Analys | 22 | Claude Code, Codex, OpenCode | 3 | 2,904 tok |
| mehdic/bazinga Claude Code Multi Agent Dev Team | 22 | Claude Code | 38 | — |
| re-cinq/wave re-cinq.github.io Multi-agent pipelines for AI-assisted development | 22 | Claude Code, Codex, Gemini CLI, OpenCode | 29 | 4,733 tok |
| johannesPettersson80/scena docs.rs Rust-native 3D scene-graph renderer for glTF/GLB, WebGPU/WebGL2, WASM, and headless render | 22 | Claude Code, Codex, OpenCode | 17 | 8,457 tok |
| joe-qai/qa-skills A toolkit focused on software testing, providing requirements analysis, test planning, and | 22 | Claude Code, Codex, OpenCode | 2 | 4,127 tok |
| tokuhirom/mutsu tokuhirom.github.io | 22 | Claude Code, Codex, OpenCode | 12 | 22,148 tok |
| SonicGarden/sgcop | 22 | Claude Code | 3 | 458 tok |
| jigglypop/gaesup-world jigglypop.github.io ✨Web 3D Character Controller and World Platform Library🔥 | 22 | Claude Code, Codex, OpenCode | 20 | 4,594 tok |
| LinekForge/forge-hub Connect Claude Code to WeChat / Telegram / Feishu / iMessage in one step — remote approval | 21 | Claude Code | 3 | 1,413 tok |
| kamwoh/yume A programmable, explicit world model on Godot — worlds are pure JSON run by a fixed primit | 21 | Claude Code | 44 | 5,517 tok |
| docsector/docsector-reader docsector.com A documentation rendering engine built with Vue 3, Quasar v2 and Vite with AI features. | 21 | Claude Code, GitHub Copilot | 3 | 94 tok |
| HeroSizy/cucumberstudio-mcp MCP Server for Cucumber Studio | 21 | Claude Code | 1 | 1,595 tok |
| Tshah-95/vean vean — the agent-native video editing core: a typed document, edit algebra, and diagnostic | 21 | Claude Code, Codex, OpenCode | 6 | 6,378 tok |
| Horosheff/aura-designer | 21 | Claude Code, Cursor | 4 | — |
| open-resource-discovery/a2a-editor open-resource-discovery.github.io UI components for editing, viewing, and testing agents that implement the Agent2Agent (A2A | 21 | Claude Code | 1 | 1,342 tok |
| existential-birds/amelia existentialbirds.com AI-powered development orchestrator: Supports Claude Code, Codex and Langchain Deepagents | 21 | Claude Code, Codex, OpenCode | 18 | 1,528 tok |
| ThalesGroup/agilab thalesgroup.github.io Open-source platform for reproducible AI/ML workflows, from local experimentation to distr | 21 | Claude Code, Codex, OpenCode | 50 | 11,082 tok |
| c9r-io/orchestrator docs.c9r.io Harness Engineering control plane for agent-first software delivery. Orchestrate Claude Co | 21 | Claude Code, Codex, OpenCode | 31 | 2,158 tok |
| crewrig/crewrig crewrig.org A layered AI assistant configuration with shared skill sandbox and built-in harness engine | 21 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 47 | 4,874 tok |
| 7oSkaaa/polygon-problems-generator | 21 | Claude Code, Codex, GitHub Copilot, OpenCode | 21 | 7,991 tok |
| ludusrusso/wildgecu 🦎 Wild by nature, safe by design. A modular AI agent framework in Go with multi-provider | 21 | Claude Code, Codex, OpenCode | 4 | 23 tok |
| streamer45/streamkit streamkit.dev StreamKit is a self-hosted real-time media processing engine with pluggable node-based pip | 21 | Claude Code, Codex, OpenCode | 15 | 3,799 tok |
| dvryaboy/dblect Test your data for meaning | 21 | Claude Code | 1 | 876 tok |
| eastlondoner/emceepee MCP server to dynamically connect to other MCP servers & exposes the entire MCP protocol v | 21 | Claude Code | 1 | 829 tok |
| infews/pxp_skill An Agentic skill that pairs with you in the Pivotal (Labs) style | 21 | Claude Code | 1 | 754 tok |