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Unity-MCP reflection-method-call

Call C# method. Any method could be called, even private methods. It requires to receive proper method schema. Use 'reflection-method-find' to find available method before using it. Receives input parameters and returns result.

install
source · Clone the upstream repo
git clone https://github.com/IvanMurzak/Unity-MCP
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/IvanMurzak/Unity-MCP "$T" && mkdir -p ~/.claude/skills && cp -r "$T/Unity-MCP-Plugin/.claude/skills/reflection-method-call" ~/.claude/skills/ivanmurzak-unity-mcp-reflection-method-call && rm -rf "$T"
manifest: Unity-MCP-Plugin/.claude/skills/reflection-method-call/SKILL.md
source content

Method C# / Call

How to Call

unity-mcp-cli run-tool reflection-method-call --input '{
  "filter": "string_value",
  "knownNamespace": false,
  "typeNameMatchLevel": 0,
  "methodNameMatchLevel": 0,
  "parametersMatchLevel": 0,
  "targetObject": "string_value",
  "inputParameters": "string_value",
  "executeInMainThread": false
}'

For complex input (multi-line strings, code), save the JSON to a file and use:

unity-mcp-cli run-tool reflection-method-call --input-file args.json

Or pipe via stdin (recommended):

unity-mcp-cli run-tool reflection-method-call --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

NameTypeRequiredDescription
filter
any
YesMethod reference. Used to find method in codebase of the project.
knownNamespace
boolean
NoSet to true if 'Namespace' is known and full namespace name is specified in the 'filter.Namespace' property. Otherwise, set to false.
typeNameMatchLevel
integer
NoMinimal match level for 'typeName'. 0 - ignore 'filter.typeName', 1 - contains ignoring case (default value), 2 - contains case sensitive, 3 - starts with ignoring case, 4 - starts with case sensitive, 5 - equals ignoring case, 6 - equals case sensitive.
methodNameMatchLevel
integer
NoMinimal match level for 'MethodName'. 0 - ignore 'filter.MethodName', 1 - contains ignoring case (default value), 2 - contains case sensitive, 3 - starts with ignoring case, 4 - starts with case sensitive, 5 - equals ignoring case, 6 - equals case sensitive.
parametersMatchLevel
integer
NoMinimal match level for 'Parameters'. 0 - ignore 'filter.Parameters', 1 - parameters count is the same, 2 - equals (default value).
targetObject
any
NoSpecify target object to call method on. Should be null if the method is static or if there is no specific target instance. New instance of the specified class will be created if the method is instance method and the targetObject is null. Required: type - full type name of the object to call method on, value - serialized object value (it will be deserialized to the specified type).
inputParameters
any
NoMethod input parameters. Per each parameter specify: type - full type name of the object to call method on, name - parameter name, value - serialized object value (it will be deserialized to the specified type).
executeInMainThread
boolean
NoSet to true if the method should be executed in the main thread. Otherwise, set to false.

Input JSON Schema

{
  "type": "object",
  "properties": {
    "filter": {
      "$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.MethodRef"
    },
    "knownNamespace": {
      "type": "boolean"
    },
    "typeNameMatchLevel": {
      "type": "integer"
    },
    "methodNameMatchLevel": {
      "type": "integer"
    },
    "parametersMatchLevel": {
      "type": "integer"
    },
    "targetObject": {
      "$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember"
    },
    "inputParameters": {
      "$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMemberList"
    },
    "executeInMainThread": {
      "type": "boolean"
    }
  },
  "$defs": {
    "System.Collections.Generic.List<com.IvanMurzak.ReflectorNet.Model.MethodRef+Parameter>": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.MethodRef+Parameter",
        "description": "Parameter of a method. Contains type and name of the parameter."
      }
    },
    "com.IvanMurzak.ReflectorNet.Model.MethodRef+Parameter": {
      "type": "object",
      "properties": {
        "typeName": {
          "type": "string",
          "description": "Type of the parameter including namespace. Sample: 'System.String', 'System.Int32', 'UnityEngine.GameObject', etc."
        },
        "name": {
          "type": "string",
          "description": "Name of the parameter. It may be empty if the name is unknown."
        }
      },
      "description": "Parameter of a method. Contains type and name of the parameter."
    },
    "com.IvanMurzak.ReflectorNet.Model.MethodRef": {
      "type": "object",
      "properties": {
        "namespace": {
          "type": "string",
          "description": "Namespace of the class. It may be empty if the class is in the global namespace or the namespace is unknown."
        },
        "typeName": {
          "type": "string",
          "description": "Class name, or substring a class name. It may be empty if the class is unknown."
        },
        "methodName": {
          "type": "string",
          "description": "Method name, or substring of the method name. It may be empty if the method is unknown."
        },
        "inputParameters": {
          "$ref": "#/$defs/System.Collections.Generic.List<com.IvanMurzak.ReflectorNet.Model.MethodRef+Parameter>",
          "description": "List of input parameters. Can be null if the method has no parameters or the parameters are unknown."
        }
      },
      "description": "Method reference. Used to find method in codebase of the project."
    },
    "com.IvanMurzak.ReflectorNet.Model.SerializedMemberList": {
      "type": "array",
      "items": {
        "$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": [
    "filter"
  ]
}

Output

Output JSON Schema

{
  "type": "object",
  "properties": {
    "result": {
      "$ref": "#/$defs/com.IvanMurzak.ReflectorNet.Model.SerializedMember"
    }
  },
  "$defs": {
    "com.IvanMurzak.ReflectorNet.Model.SerializedMemberList": {
      "type": "array",
      "items": {
        "$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": [
    "result"
  ]
}