IdoCohen560 Object / Modify
How to Call
unity-mcp-cli run-tool object-modify --input '{
"objectRef": "string_value",
"objectDiff": "string_value"
}'
For complex input (multi-line strings, code), save the JSON to a file and use:
unity-mcp-cli run-tool object-modify --input-file args.jsonOr pipe via stdin (recommended):
unity-mcp-cli run-tool object-modify --input-file - <<'EOF' {"param": "value"} EOF
Troubleshooting
If unity-mcp-cli is not found, either install it globally (npm install -g unity-mcp-cli) or use npx unity-mcp-cli instead.
Read the /unity-initial-setup skill for detailed installation instructions.
Input
| Name | Type | Required | Description |
|---|---|---|---|
objectRef |
any |
Yes | Reference to UnityEngine.Object instance. It could be GameObject, Component, Asset, etc. Anything extended from UnityEngine.Object. |
objectDiff |
any |
Yes | The object data to apply. Should contain 'fields' and/or 'props' with the values to modify. |
| Only include the fields/properties you want to change. | |||
| Any unknown or invalid fields and properties will be reported in the response. |
Input JSON Schema
{
"type": "object",
"properties": {
"objectRef": {
"$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Runtime.Data.ObjectRef"
},
"objectDiff": {
"$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember"
}
},
"$defs": {
"com.IvanMurzak.Unity.MCP.Runtime.Data.ObjectRef": {
"type": "object",
"properties": {
"instanceID": {
"type": "integer",
"description": "instanceID of the UnityEngine.Object. If this is '0', then it will be used as 'null'."
}
},
"required": [
"instanceID"
],
"description": "Reference to UnityEngine.Object instance. It could be GameObject, Component, Asset, etc. Anything extended from UnityEngine.Object."
},
"com.IvanMurzak.ReflectorNet.Model.SerializedMemberList": {
"type": "array",
"items": {
"$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember"
}
},
"com.IvanMurzak.ReflectorNet.Model.SerializedMember": {
"type": "object",
"properties": {
"typeName": {
"type": "string",
"description": "Full type name. Eg: 'System.String', 'System.Int32', 'UnityEngine.Vector3', etc."
},
"name": {
"type": "string",
"description": "Object name."
},
"value": {
"description": "Value of the object, serialized as a non stringified JSON element. Can be null if the value is not set. Can be default value if the value is an empty object or array json."
},
"fields": {
"type": "array",
"items": {
"$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember",
"description": "Nested field value."
},
"description": "Fields of the object, serialized as a list of 'SerializedMember'."
},
"props": {
"type": "array",
"items": {
"$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember",
"description": "Nested property value."
},
"description": "Properties of the object, serialized as a list of 'SerializedMember'."
}
},
"required": [
"typeName"
],
"additionalProperties": false
}
},
"required": [
"objectRef",
"objectDiff"
]
}
Output
Output JSON Schema
{
"type": "object",
"properties": {
"result": {
"$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Editor.API.Tool_Object+ModifyObjectResponse"
}
},
"$defs": {
"com.IvanMurzak.Unity.MCP.Runtime.Data.ObjectRef": {
"type": "object",
"properties": {
"instanceID": {
"type": "integer",
"description": "instanceID of the UnityEngine.Object. If this is '0', then it will be used as 'null'."
}
},
"required": [
"instanceID"
],
"description": "Reference to UnityEngine.Object instance. It could be GameObject, Component, Asset, etc. Anything extended from UnityEngine.Object."
},
"com.IvanMurzak.ReflectorNet.Model.SerializedMember": {
"type": "object",
"properties": {
"typeName": {
"type": "string",
"description": "Full type name. Eg: 'System.String', 'System.Int32', 'UnityEngine.Vector3', etc."
},
"name": {
"type": "string",
"description": "Object name."
},
"value": {
"description": "Value of the object, serialized as a non stringified JSON element. Can be null if the value is not set. Can be default value if the value is an empty object or array json."
},
"fields": {
"type": "array",
"items": {
"$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember",
"description": "Nested field value."
},
"description": "Fields of the object, serialized as a list of 'SerializedMember'."
},
"props": {
"type": "array",
"items": {
"$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember",
"description": "Nested property value."
},
"description": "Properties of the object, serialized as a list of 'SerializedMember'."
}
},
"required": [
"typeName"
],
"additionalProperties": false
},
"com.IvanMurzak.ReflectorNet.Model.SerializedMemberList": {
"type": "array",
"items": {
"$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember"
}
},
"System.String[]": {
"type": "array",
"items": {
"type": "string"
}
},
"com.IvanMurzak.Unity.MCP.Editor.API.Tool_Object+ModifyObjectResponse": {
"type": "object",
"properties": {
"Success": {
"type": "boolean",
"description": "Whether the modification was successful."
},
"Reference": {
"$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Runtime.Data.ObjectRef",
"description": "Reference to the modified object."
},
"Data": {
"$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember",
"description": "Updated object data after modification."
},
"Logs": {
"$ref": "#/$defs/System.String[]",
"description": "Log of modifications made and any warnings/errors encountered."
}
},
"required": [
"Success"
]
}
},
"required": [
"result"
]
}