Disallow and suppress misused spread operator. (#23294)

packages/core/src/tools/mcp-client-manager.test.ts

@@ -511,6 +511,7 @@ describe('McpClientManager', () => {
       await manager.startExtension(extension);
 
       mockedMcpClient.getServerConfig.mockReturnValue({
+        // eslint-disable-next-line @typescript-eslint/no-misused-spread
         ...extension.mcpServers!['test-server'],
         extension,
       });

packages/core/src/tools/mcp-client-manager.ts

@@ -215,6 +215,7 @@ export class McpClientManager {
     await Promise.all(
       Object.entries(extension.mcpServers ?? {}).map(([name, config]) =>
         this.maybeDiscoverMcpServer(name, {
+          // eslint-disable-next-line @typescript-eslint/no-misused-spread
           ...config,
           extension,
         }),
@@ -331,7 +332,9 @@ export class McpClientManager {
     const env = { ...(base.env ?? {}), ...(override.env ?? {}) };
 
     return {
+      // eslint-disable-next-line @typescript-eslint/no-misused-spread
       ...base,
+      // eslint-disable-next-line @typescript-eslint/no-misused-spread
       ...override,
       includeTools,
       excludeTools: excludeTools.length > 0 ? excludeTools : undefined,

packages/core/src/tools/write-file.test.ts

@@ -367,6 +367,7 @@ describe('WriteFileTool', () => {
       const abortSignal = new AbortController().signal;
 
       const mockGemini3Config = {
+        // eslint-disable-next-line @typescript-eslint/no-misused-spread
         ...mockConfig,
         getActiveModel: () => 'gemini-3.0-pro',
       } as unknown as Config;