unity-repl

What problem does it solve?

Provides direct, evaluative access to the Unity Editor runtime so agents and developers can query engine state, modify scenes, instantiate assets, and run Unity API commands without building custom tool wrappers or MCP endpoints.

Core Features & Use Cases

• One-shot and interactive REPL: evaluate single expressions or run a persistent prompt to drive iterative exploration.
• Scene and runtime manipulation: inspect scene graph, instantiate prefabs, add components, and toggle Play Mode from automated agents or CI.
• Coroutines, validation, and automation contracts: auto-drives IEnumerators across frames, supports compile-only validation, configurable timeouts, and deterministic exit codes for automation workflows.
• Use Case: an autonomous agent can discover a test scenario, synthesize a multi-step C# snippet to set up the scene, run a coroutine to exercise gameplay, and collect results as stdout for downstream analysis.

Quick Start

Use the unity-repl skill to evaluate a C# expression that returns the active scene name and print the result.