menuItemTool.tsโข2.39 kB
import * as z from 'zod';
import { Logger } from '../utils/logger.js';
import { McpUnity } from '../unity/mcpUnity.js';
import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
import { McpUnityError, ErrorType } from '../utils/errors.js';
import { CallToolResult } from '@modelcontextprotocol/sdk/types.js';
// Constants for the tool
const toolName = 'execute_menu_item';
const toolDescription = 'Executes a Unity menu item by path';
const paramsSchema = z.object({
menuPath: z.string().describe('The path to the menu item to execute (e.g. "GameObject/Create Empty")')
});
/**
* Creates and registers the Menu Item tool with the MCP server
* This tool allows executing menu items in the Unity Editor
*
* @param server The MCP server instance to register with
* @param mcpUnity The McpUnity instance to communicate with Unity
* @param logger The logger instance for diagnostic information
*/
export function registerMenuItemTool(server: McpServer, mcpUnity: McpUnity, logger: Logger) {
logger.info(`Registering tool: ${toolName}`);
// Register this tool with the MCP server
server.tool(
toolName,
toolDescription,
paramsSchema.shape,
async (params: any) => {
try {
logger.info(`Executing tool: ${toolName}`, params);
const result = await toolHandler(mcpUnity, params);
logger.info(`Tool execution successful: ${toolName}`);
return result;
} catch (error) {
logger.error(`Tool execution failed: ${toolName}`, error);
throw error;
}
}
);
}
/**
* Handles menu item execution requests
*
* @param mcpUnity The McpUnity instance to communicate with Unity
* @param params The parameters for the tool
* @returns A promise that resolves to the tool execution result
* @throws McpUnityError if the request to Unity fails
*/
async function toolHandler(mcpUnity: McpUnity, params: any): Promise<CallToolResult> {
const { menuPath } = params;
const response = await mcpUnity.sendRequest({
method: toolName,
params: { menuPath }
});
if (!response.success) {
throw new McpUnityError(
ErrorType.TOOL_EXECUTION,
response.message || `Failed to execute menu item: ${menuPath}`
);
}
return {
content: [{
type: response.type,
text: response.message || `Successfully executed menu item: ${menuPath}`
}]
};
}