1,595 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 agents8,356Claude Code6,837Data and AI3,595Backend and APIs3,545Git and workflow3,545Languages3,458Planning3,300Code review2,870DevOps and cloud2,441Writing and docs2,440Memory and context2,373Research2,311
Any agent Claude CodeCodexOpenCodeGitHub CopilotGemini CLICursorWindsurfKiro
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| vanillagreencom/kendex kendex.ai Package manager for agents, skills, hooks, and extensions. Author once, install on every h | 88 | Claude Code, Codex, GitHub Copilot, OpenCode | 78 | 3,231 tok |
| UncertaintyArchitectureGroup/The-Subprime-Code-Crisis Independent research synthesis on AI-assisted software delivery risk: how local code-gener | 88 | Codex, OpenCode | 1 | 8,418 tok |
| autohandai/commander autohand.ai Commander, your AI coding commander centre for all you ai coding cli agents | 87 | Codex, OpenCode | 1 | 2,227 tok |
| mmacpherson/tenforty Python library to compute US federal taxes, and state taxes for some states. | 87 | Claude Code, Codex, OpenCode | 5 | 3,205 tok |
| vantage-sh/vantage-mcp-server vantage.sh MCP Server to fetch costs and usage data from your Vantage account. | 86 | Claude Code, Codex, OpenCode | 4 | 1,849 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 | 86 | Claude Code, Codex, GitHub Copilot, OpenCode | 14 | 4,356 tok |
| ZenlixAI/hitl-mcp A production-ready, state-persistent MCP server for Human-in-the-Loop (HITL) interaction. | 85 | Claude Code, Codex | 13 | — |
| mortis-cube/mo-code mo-code is an experimental project by mortis implementing Claude Code's core functionality | 85 | Claude Code, Codex, OpenCode | 12 | 95 tok |
| Blushyes/reef blushyes.github.io The minimal dev terminal for the AI coding era — AI writes the code, Reef is where you r | 84 | Claude Code, Codex | 6 | — |
| WillEhrendreich/SageFs sagetech.dev Sage Mode for F# development — REPL with solution or project loading, Live Testing for FRE | 84 | Codex, OpenCode | 1 | 10,112 tok |
| moorestech/moorestech Animated open world automated factory game | 84 | Claude Code, Codex, OpenCode | 43 | 4,455 tok |
| fastxyz/skill-optimizer Benchmark, evaluate, and optimize skills to ensure reliable performance across all LLMs | 82 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,762 tok |
| snyk/snyk-ls snyk.io Language Server used by IDEs as Snyk Backend for Frontends | 82 | Claude Code, Codex, Cursor, OpenCode | 9 | 1,485 tok |
| www-zaq-ai/zaq zaq.ai Connect your people, tools and data with your custom AI agents. ZAQ is an open source coll | 82 | Claude Code, Codex, OpenCode | 54 | 1,729 tok |
| wingedsheep/argentum-engine magic.wingedsheep.com Magic: The Gathering rules engine + online play platform, in Kotlin | 81 | Claude Code, Codex, OpenCode | 19 | 4,822 tok |
| JasonBoy/msw-mcp msw-mcp-docs.vercel.app Cli & MCP server for msw (Mock Service Worker) for AI Agents with dynamic mocking | 81 | Claude Code, Codex, OpenCode | 2 | 940 tok |
| G12789/mcp-quickstart Forge a working, testable, publishable MCP server in 30s. TypeScript or Python, with examp | 80 | Codex, OpenCode | 1 | 714 tok |
| woocommerce/woocommerce-paypal-payments wordpress.org | 80 | Claude Code, Codex, OpenCode | 15 | 2,170 tok |
| cartridge-gg/controller x.cartridge.gg A self custodial embedded account to seamlessly play onchain games | 80 | Claude Code, Codex, OpenCode | 20 | 2,222 tok |
| supabase/pg-toolbelt Postgres migrations made easy | 80 | Claude Code, Codex, OpenCode | 3 | 11 tok |
| strands-rl/strands-sglang SGLang model provider for Strands Agents. | 79 | Claude Code, Codex, OpenCode | 7 | 3,637 tok |
| Aerozb/Postman-cn The latest fully Chinese-translated version of Postman | 79 | Claude Code, Codex, OpenCode | 3 | 3,002 tok |
| wham/github-brain An experimental GitHub MCP server with local database. | 78 | Claude Code, Codex, OpenCode | 2 | 103 tok |
| nylas/cli cli.nylas.com Nylas CLI is a unified command-line tool for Nylas API authentication, email management (G | 78 | Claude Code, Codex, OpenCode | 21 | 2,393 tok |
| maximem-ai/maximem_synap_sdk maximem.ai The memory and context-management layer for production AI agents. 95.6% on LongMemEval, 93 | 77 | Codex, OpenCode | 1 | 337 tok |
| iammm0/secbot secbot.site AI-powered authorized security testing workspace. Maintained on the release branch (NestJS | 76 | Claude Code, Codex, OpenCode | 2 | 4,183 tok |
| smolcars/hunk A GPUI based diff viewer and Codex orchestrator for vibe engineering | 76 | Claude Code, Codex, OpenCode | 8 | 1,393 tok |
| objectstack-ai/objectstack objectstack.ai The ontology is the software. One executable business ontology: AI writes it, the runtime | 76 | Claude Code, Codex, GitHub Copilot, OpenCode | 14 | 19,407 tok |
| mochow13/keen-code mochow13.github.io A context-aware terminal-based coding agent written in Go. Supports multiple-providers, MC | 75 | Claude Code, Codex, OpenCode | 4 | 292 tok |
| agigante80/actual-mcp-server Talk to your self-hosted Actual Budget from any MCP client: a remote HTTP server for Libre | 74 | Codex, GitHub Copilot, OpenCode | 5 | 4,331 tok |
| kkollsga/kglite Embedded Cypher knowledge graph for Python and Rust. Bundled MCP server, describe() schema | 74 | Codex, OpenCode | 1 | 13,531 tok |
| actava-ai/chi-bench actava.ai Χ-Bench: Can AI Agents Automate End-to-End, Long-Horizon, Policy-Rich Healthcare Workflows | 73 | Claude Code, Codex, OpenCode | 2 | 5,110 tok |
| rasinmuhammed/misata misata.studio Declarative synthetic data for Python. State the facts a dataset must hold (monthly revenu | 72 | Codex, OpenCode | 1 | 1,824 tok |
| andrianllmm/renux pypi.org A terminal-based bulk file renamer with a TUI | 72 | Claude Code, Codex, OpenCode | 4 | 247 tok |
| rerun-io/examples-monorepo Holds all the more complex examples in a single monorepo | 72 | Claude Code, Codex, OpenCode | 2 | 7,741 tok |
| WaseemGhanem98/AgentCheck Behavioral testing for AI agents. | 72 | Codex, OpenCode | 1 | 1,617 tok |
| scylladb/scylla-cluster-tests Tests for Scylla Clusters | 72 | Claude Code, Codex, GitHub Copilot, OpenCode | 7 | 9,599 tok |
| yantrikos/yantrikdb yantrikdb.com Cognitive memory engine for AI agents — temporal decay, contradiction detection, autonomou | 71 | Claude Code, Codex, OpenCode | 2 | 512 tok |
| mavka-ai/unit-tests-skills mavka.ai AI agent skills for generating high-quality unit tests — Given-When-Then test cases, JUnit | 70 | Claude Code, Codex, OpenCode | 3 | 3,127 tok |
| AlexanderMattTurner/agent-glovebox A minimal-friction secure experience that lets agents do their work. (beta) | 68 | Claude Code, Codex, GitHub Copilot, OpenCode | 43 | 16,964 tok |
| tan-yong-sheng/triliumnext-mcp MCP server for TriliumNext Notes | 68 | Claude Code, Codex, OpenCode | 20 | 11,344 tok |
| yfge/ai-video-studio AI video production workflow platform for professional short drama teams. Timeline-first, | 68 | Claude Code, Codex, Gemini CLI, OpenCode | 6 | 1,434 tok |
| ronikobrosly/RigorLoop A statistically-sound agentic build framework that employs agentic loops to create code ar | 67 | Claude Code, Codex, OpenCode | 2 | 1,515 tok |
| vichhka-git/opencode-shannon-plugin AI Penetration Testing Plugin for OpenCode — Autonomous pentesting with 600+ Kali Linux t | 67 | Codex, OpenCode | 1 | 1,881 tok |
| GoogleCloudPlatform/evalbench EvalBench is a flexible framework designed to measure the quality of generative AI (GenAI) | 67 | Codex, OpenCode | 1 | 2,556 tok |
| seldonframe/seldonframe seldonframe.com Open-source AI front-office factory for agencies serving local businesses: website, bookin | 67 | Claude Code, Codex, Cursor, OpenCode, Windsurf | 22 | 5,556 tok |
| NuGuardAI/nuguard nuguard.ai AI red-teaming tool and LLM security framework to evaluate agentic AI applications. Tests | 67 | Claude Code, Codex, GitHub Copilot, OpenCode | 7 | 5,030 tok |
| callstackincubator/skillgym Prove your agent skills work before you ship them. | 66 | Codex, OpenCode | 1 | 48 tok |
| ebibibi/ebi-agent-chat-relay One cockpit for all your coding agents: a web console (plus Discord & Teams) to run Claude | 66 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 15 | 8,545 tok |
| netlify/axis axis.run Open source tooling and scoring framework to measure how well services work for AI agents. | 66 | Codex, OpenCode | 1 | 9,543 tok |