Sandbox
826 repos for β€œtesting” Β· Claude CodeClear
microsoft/
SkillOpt
microsoft/SkillOptFrameworks & SDKs

SkillOpt is a text-space optimizer that trains reusable natural-language skills for frozen LLM agents through trajectory-driven edits, validation-gated updates, and deployable best_skill.md artifacts.

17k
htdt/godogenHarnesses

Autonomous game development for Godot, Bevy, and Babylon.js with Claude Code and Codex

6.8k
zhukunpenglinyutong/
desktop-cc-gui

Multi-engine AI coding desktop client (Tauri). Claude Code, Codex, Gemini, OpenCode, DeepSeek Harness and more in one GUI.

4.2k

πŸ„πŸΌβ€β™‚οΈ The blackboard for coding agents - agentic development environment for claude code, codex, cursor, opencode, grok and more.

1.5k
AvdLee/
Xcode-Build-Optimization-Agent-Skill

An Agent Skill helping you to optimize Xcode incremental and clean builds by running benchmarks and optimizing build settings.

1.2k
matlab/
matlab-agentic-toolkit

The MATLAB Agentic Toolkit brings trusted MATLAB capabilities to AI agents, making engineering and scientific workflows agent-ready.

1k
johannesjo/
parallel-code

Run Claude Code, Codex, and Gemini side by side β€” each in its own git worktree

1k
ChiR24/
Unreal_mcp

A comprehensive Model Context Protocol (MCP) server that enables AI assistants to control Unreal Engine through the native C++ Automation Bridge plugin. Built with TypeScript and C++.

861
AgentSkillOS/
SkillAnything

Making ANY Software Skill-Native -- Auto-generate production-ready AI Agent Skills for Claude Code, OpenClaw, Codex, and more.

472
Ibrahim-3d/
orchestrator-supaconductor

Multi-agent orchestration system for Claude Code with parallel execution, automated quality gates, Board of Directors, and bundled Superpowers skills

377
kairyou/
agent-tools

Reusable Agent Skills, plus integrations (statusline, provider usage, vision) that install into Codex, Claude Code, and opencode.

181

Evidence-grounded repository audit CLI - deterministic scanner, MCP server, live dashboard, and a GitHub Action that posts PR diffs.

156
anhvt52/
jetpack-compose-skills

Agent skill for modern Android development with Jetpack Compose β€” best practices for code generation and review

96

The environment engine for agent worktrees - zero-config dep sync + port/DB/compose isolation

86
danielsogl/
lighthouse-mcp-server

MCP server that enables AI agents to perform comprehensive web audits using Google Lighthouse with 13+ tools for performance, accessibility, SEO, and security analysis.

70
mvschwarz/
openrig

Multi-agent harness that runs Claude Code and Codex together as one system

66

A self-evolving Claude Code plugin. Context routing, memory bootup, smart delegation, self-correction β€” out of the box.

48
0xDarkMatter/
claude-mods

Expert skills, agents, commands, rules, hooks & output styles for Claude Code β€” session continuity + modern CLI tooling for real-world dev workflows

35
rlajous/
claude-code-commands

Production-ready Git workflow skills, agents, hooks, reviews, releases, and notifications for Claude Code and Codex.

30
anthropics/
claude-code

Claude Code is an agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster by executing routine tasks, explaining complex code, and handling git workflows - all through natural language commands.

145k

Model Context Protocol (MCP) plugin to connect with Unity Editor β€” designed for Cursor, Claude Code, Codex, Windsurf and other IDEs

1.9k