uloop-execute-dynamic-code

Original：🇺🇸 English

Translated

Execute C# code dynamically in Unity Editor via uloop CLI. Use for editor automation: (1) Prefab/material wiring and AddComponent operations, (2) Reference wiring with SerializedObject, (3) Scene/hierarchy edits and batch operations. NOT for file I/O or script authoring.

2installs

Sourcehatayama/uloopmcp

Added on2026-02-15

NPX Install

npx skill4agent add hatayama/uloopmcp uloop-execute-dynamic-code

SKILL.md Content

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uloop execute-dynamic-code

Execute C# code dynamically in Unity Editor.

Usage

bash

uloop execute-dynamic-code --code '<c# code>'

Parameters

Parameter	Type	Description
`--code`	string	C# code to execute (direct statements, no class wrapper)
`--compile-only`	boolean	Compile without execution
`--auto-qualify-unity-types-once`	boolean	Auto-qualify Unity types

Code Format

Write direct statements only (no classes/namespaces/methods). Return is optional.

csharp

// Using directives at top are hoisted
using UnityEngine;
var x = Mathf.PI;
return x;

String Literals (Shell-specific)

Shell	Method
bash/zsh/MINGW64/Git Bash	`'Debug.Log("Hello!");'`
PowerShell	`'Debug.Log(""Hello!"");'`

Allowed Operations

Prefab/material wiring (PrefabUtility)
AddComponent + reference wiring (SerializedObject)
Scene/hierarchy edits
Inspector modifications

Forbidden Operations

System.IO.* (File/Directory/Path)
AssetDatabase.CreateFolder / file writes
Create/edit .cs/.asmdef files

Examples

bash / zsh / MINGW64 / Git Bash

bash

uloop execute-dynamic-code --code 'return Selection.activeGameObject?.name;'
uloop execute-dynamic-code --code 'new GameObject("MyObject");'
uloop execute-dynamic-code --code 'UnityEngine.Debug.Log("Hello from CLI!");'

PowerShell

powershell

uloop execute-dynamic-code --code 'return Selection.activeGameObject?.name;'
uloop execute-dynamic-code --code 'new GameObject(""MyObject"");'
uloop execute-dynamic-code --code 'UnityEngine.Debug.Log(""Hello from CLI!"");'

Output

Returns JSON with execution result or compile errors.

Notes

For file/directory operations, use terminal commands instead.

Code Examples by Category

For detailed code examples, refer to these files:

Prefab operations: See examples/prefab-operations.md
- Create prefabs, instantiate, add components, modify properties
Material operations: See examples/material-operations.md
- Create materials, set shaders/textures, modify properties
Asset operations: See examples/asset-operations.md
- Find/search assets, duplicate, move, rename, load
ScriptableObject: See examples/scriptableobject.md
- Create ScriptableObjects, modify with SerializedObject
Scene operations: See examples/scene-operations.md
- Create/modify GameObjects, set parents, wire references, load scenes