EnglewoodLAB/SKILLS/unity-editor/object-modify.md

name, description

name	description
object-modify	Modify the specified Unity Object. Allows direct modification of object fields and properties. Use 'object-get-data' first to inspect the object structure before modifying.

Object / Modify

Modify the specified Unity Object. Allows direct modification of object fields and properties. Use 'object-get-data' first to inspect the object structure before modifying.

How to Call

HTTP API (Direct Tool Execution)

Execute this tool directly via the MCP Plugin HTTP API:

curl -X POST http://localhost:8080/api/tools/object-modify \
  -H "Content-Type: application/json" \
  -d '{
  "objectRef": "string_value",
  "objectDiff": "string_value"
}'

With Authorization (if required)

curl -X POST http://localhost:8080/api/tools/object-modify \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -d '{
  "objectRef": "string_value",
  "objectDiff": "string_value"
}'

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",
      "description": "Reference to UnityEngine.Object instance. It could be GameObject, Component, Asset, etc. Anything extended from UnityEngine.Object."
    },
    "objectDiff": {
      "$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember",
      "description": "The object data to apply. Should contain \u0027fields\u0027 and/or \u0027props\u0027 with the values to modify.\nOnly include the fields/properties you want to change.\nAny unknown or invalid fields and properties will be reported in the response."
    }
  },
  "$defs": {
    "com.IvanMurzak.Unity.MCP.Runtime.Data.ObjectRef": {
      "type": "object",
      "properties": {
        "instanceID": {
          "type": "integer",
          "description": "instanceID of the UnityEngine.Object. If this is \u00270\u0027, then it will be used as \u0027null\u0027."
        }
      },
      "required": [
        "instanceID"
      ],
      "description": "Reference to UnityEngine.Object instance. It could be GameObject, Component, Asset, etc. Anything extended from UnityEngine.Object."
    },
    "com.IvanMurzak.ReflectorNet.Model.SerializedMemberList": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember"
      }
    },
    "com.IvanMurzak.ReflectorNet.Model.SerializedMember": {
      "type": "object",
      "properties": {
        "typeName": {
          "type": "string",
          "description": "Full type name. Eg: \u0027System.String\u0027, \u0027System.Int32\u0027, \u0027UnityEngine.Vector3\u0027, etc."
        },
        "name": {
          "type": "string",
          "description": "Object name."
        },
        "value": {
          "description": "Value of the object, serialized as a non stringified JSON element. Can be null if the value is not set. Can be default value if the value is an empty object or array json."
        },
        "fields": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember",
            "description": "Nested field value."
          },
          "description": "Fields of the object, serialized as a list of \u0027SerializedMember\u0027."
        },
        "props": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember",
            "description": "Nested property value."
          },
          "description": "Properties of the object, serialized as a list of \u0027SerializedMember\u0027."
        }
      },
      "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\u002BModifyObjectResponse"
    }
  },
  "$defs": {
    "com.IvanMurzak.Unity.MCP.Runtime.Data.ObjectRef": {
      "type": "object",
      "properties": {
        "instanceID": {
          "type": "integer",
          "description": "instanceID of the UnityEngine.Object. If this is \u00270\u0027, then it will be used as \u0027null\u0027."
        }
      },
      "required": [
        "instanceID"
      ],
      "description": "Reference to UnityEngine.Object instance. It could be GameObject, Component, Asset, etc. Anything extended from UnityEngine.Object."
    },
    "com.IvanMurzak.ReflectorNet.Model.SerializedMember": {
      "type": "object",
      "properties": {
        "typeName": {
          "type": "string",
          "description": "Full type name. Eg: \u0027System.String\u0027, \u0027System.Int32\u0027, \u0027UnityEngine.Vector3\u0027, etc."
        },
        "name": {
          "type": "string",
          "description": "Object name."
        },
        "value": {
          "description": "Value of the object, serialized as a non stringified JSON element. Can be null if the value is not set. Can be default value if the value is an empty object or array json."
        },
        "fields": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember",
            "description": "Nested field value."
          },
          "description": "Fields of the object, serialized as a list of \u0027SerializedMember\u0027."
        },
        "props": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember",
            "description": "Nested property value."
          },
          "description": "Properties of the object, serialized as a list of \u0027SerializedMember\u0027."
        }
      },
      "required": [
        "typeName"
      ],
      "additionalProperties": false
    },
    "com.IvanMurzak.ReflectorNet.Model.SerializedMemberList": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember"
      }
    },
    "System.String[]": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "com.IvanMurzak.Unity.MCP.Editor.API.Tool_Object\u002BModifyObjectResponse": {
      "type": "object",
      "properties": {
        "Success": {
          "type": "boolean",
          "description": "Whether the modification was successful."
        },
        "Reference": {
          "$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"
  ]
}