# Uloop Control Play Mode

> Control Unity Editor play mode (play/stop/pause). Use when you need to: (1) Start play mode to test game behavior, (2) Stop play mode to return to edit mode, (3) Pause play mode for frame-by-frame inspection.

- Skill: `hatayama/uloop-control-play-mode-4` (Agent Skill)
- Install (CLI): `npx skillmds@latest add hatayama/uloop-control-play-mode-4`
- Raw SKILL.md: https://api.skillmd.com/api/skills/hatayama/uloop-control-play-mode-4/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: hatayama (https://skillmd.com/u/hatayama)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/hatayama/uloop-control-play-mode-4

---


# uloop control-play-mode

Control Unity Editor play mode (play/stop/pause).

## Usage

```bash
uloop control-play-mode [options]
```

## Parameters

| Parameter | Type | Default | Description |
|-----------|------|---------|-------------|
| `--action` | string | `Play` | Action to perform: `Play`, `Stop`, `Pause` |

## Global Options

| Option | Description |
|--------|-------------|
| `--project-path <path>` | Target a specific Unity project (mutually exclusive with `--port`) |
| `-p, --port <port>` | Specify Unity TCP port directly (mutually exclusive with `--project-path`) |

## Examples

```bash
# Start play mode
uloop control-play-mode --action Play

# Stop play mode
uloop control-play-mode --action Stop

# Pause play mode
uloop control-play-mode --action Pause
```

## Output

Returns JSON with the current play mode state:
- `IsPlaying`: Whether Unity is currently in play mode
- `IsPaused`: Whether play mode is paused
- `Message`: Description of the action performed

## Notes

- Play action starts the game in the Unity Editor (also resumes from pause)
- Stop action exits play mode and returns to edit mode
- Pause action pauses the game while remaining in play mode
- Useful for automated testing workflows