mcp-server

Unity CLI Loop

Name: Unity CLI Loop
Author: hatayama

Let AI Drive Unity, from Editor to Play Mode.

566 stars48 forksC#Updated 9/21/2026100% free · open source

What it does

Provides a command‑line loop that lets an external AI script control Unity Editor and Play mode without opening the UI.

When to use it

•You want to generate game content (scenes, prefabs, scripts) automatically from an LLM and see the results instantly.
•You need to run automated play‑testing cycles where AI decides the next action after each frame.
•You are building a CI pipeline that must compile, launch, and stop Unity to capture screenshots or logs.

Ready-to-paste prompt

curl -X POST http://localhost:5000/command -H "Content-Type: application/json" -d '{"action":"SpawnEnemy","type":"Orc","location":[5,0,3],"behavior":"Aggressive"}'

Heads up: The tool requires Unity to be installed and reachable via the `Unity` command‑line (e.g., `Unity.exe` on Windows or `unity` on macOS/Linux); if the executable is not on your PATH, `unity-cli-loop` will fail to launch the editor.

Saves to your device

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

✅ Light setup

Installs with a command or two; your AI agent can do it for you.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/0b65aa38-4557-4390-83d7-68d5f98e88d5 && curl -fsSL https://workflowstacks.com/api/skills/0b65aa38-4557-4390-83d7-68d5f98e88d5/claude-skill -o ~/.claude/skills/0b65aa38-4557-4390-83d7-68d5f98e88d5/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

What's inside — free to inspect

No purchase needed

Read the entire source before you build — unlike paid marketplaces that hide it behind a buy button.

top-level files

folders

152.0M

source size

MIT

license

Key files

.editorconfig

AGENTS.md

README_ja.md

README.md

release-please-config.json

File tree

.agents/

.claude/

.github/

.husky/

.uloop/

Assets/

ci/

cli/

docs/

Packages/

ProjectSettings/

scripts/

tests/

tools/

.coderabbit.yaml

.editorconfig

.gitattributes

.gitignore

.release-please-manifest.json

AGENTS.md

CHANGELOG.md

CLAUDE.md

cubic.yaml

Directory.Build.props

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

✅ Light setup

Installs with a command or two; your AI agent can do it for you.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/0b65aa38-4557-4390-83d7-68d5f98e88d5 && curl -fsSL https://workflowstacks.com/api/skills/0b65aa38-4557-4390-83d7-68d5f98e88d5/claude-skill -o ~/.claude/skills/0b65aa38-4557-4390-83d7-68d5f98e88d5/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

Quick Actions

Details

Creator

hatayama

Language