improved mcp support, including standard "mcpServers" setting with multiple named servers with command/args/env/cwd (#392)

packages/server/src/config/config.ts

@@ -20,6 +20,7 @@ import { WriteFileTool } from '../tools/write-file.js';
 import { WebFetchTool } from '../tools/web-fetch.js';
 import { ReadManyFilesTool } from '../tools/read-many-files.js';
 import { BaseTool, ToolResult } from '../tools/tools.js';
+import { StdioServerParameters } from '@modelcontextprotocol/sdk/client/stdio.js';
 
 export class Config {
   private toolRegistry: ToolRegistry;
@@ -35,6 +36,9 @@ export class Config {
     private readonly toolDiscoveryCommand: string | undefined,
     private readonly toolCallCommand: string | undefined,
     private readonly mcpServerCommand: string | undefined,
+    private readonly mcpServers:
+      | Record<string, StdioServerParameters>
+      | undefined,
     private readonly userAgent: string,
     private userMemory: string = '', // Made mutable for refresh
     private geminiMdFileCount: number = 0,
@@ -86,6 +90,10 @@ export class Config {
     return this.mcpServerCommand;
   }
 
+  getMcpServers(): Record<string, StdioServerParameters> | undefined {
+    return this.mcpServers;
+  }
+
   getUserAgent(): string {
     return this.userAgent;
   }
@@ -146,6 +154,7 @@ export function createServerConfig(
   toolDiscoveryCommand?: string,
   toolCallCommand?: string,
   mcpServerCommand?: string,
+  mcpServers?: Record<string, StdioServerParameters>,
   userAgent?: string,
   userMemory?: string,
   geminiMdFileCount?: number,
@@ -161,6 +170,7 @@ export function createServerConfig(
     toolDiscoveryCommand,
     toolCallCommand,
     mcpServerCommand,
+    mcpServers,
     userAgent ?? 'GeminiCLI/unknown', // Default user agent
     userMemory ?? '',
     geminiMdFileCount ?? 0,