feat(cli): add experimental LSP support with --experimental-lsp flag

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

packages/cli/src/config/config.ts

@@ -121,6 +121,7 @@ export interface CliArgs {
   acp: boolean | undefined;
   experimentalAcp: boolean | undefined;
   experimentalSkills: boolean | undefined;
+  experimentalLsp: boolean | undefined;
   extensions: string[] | undefined;
   listExtensions: boolean | undefined;
   openaiLogging: boolean | undefined;
@@ -480,6 +481,12 @@ export async function parseArguments(settings: Settings): Promise<CliArgs> {
             return settings.experimental?.skills ?? legacySkills ?? false;
           })(),
         })
+        .option('experimental-lsp', {
+          type: 'boolean',
+          description:
+            'Enable experimental LSP (Language Server Protocol) feature for code intelligence',
+          default: false,
+        })
         .option('channel', {
           type: 'string',
           choices: ['VSCode', 'ACP', 'SDK', 'CI'],
@@ -902,8 +909,8 @@ export async function loadCliConfig(
 
   let mcpServers = mergeMcpServers(settings, activeExtensions);
 
-  // LSP configuration derived from settings; defaults to disabled for safety.
-  const lspEnabled = settings.lsp?.enabled ?? false;
+  // LSP configuration: enabled only via --experimental-lsp flag
+  const lspEnabled = argv.experimentalLsp === true;
   const lspAllowed = settings.lsp?.allowed ?? settings.mcp?.allowed;
   const lspExcluded = settings.lsp?.excluded ?? settings.mcp?.excluded;
   const lspLanguageServers = settings.lsp?.languageServers;

packages/cli/src/config/lspSettingsSchema.ts

@@ -5,8 +5,9 @@ export const lspSettingsSchema: JSONSchema7 = {
   properties: {
     'lsp.enabled': {
       type: 'boolean',
-      default: true,
-      description: '启用 LSP 语言服务器协议支持'
+      default: false,
+      description:
+        '启用 LSP 语言服务器协议支持（实验性功能）。必须通过 --experimental-lsp 命令行参数显式开启。'
     },
     'lsp.allowed': {
       type: 'array',

packages/cli/src/config/settingsSchema.ts

@@ -1039,7 +1039,7 @@ const SETTINGS_SCHEMA = {
     requiresRestart: true,
     default: {},
     description:
-      'Settings for the native Language Server Protocol integration.',
+      'Settings for the native Language Server Protocol integration. Enable with --experimental-lsp flag.',
     showInDialog: false,
     properties: {
       enabled: {
@@ -1049,7 +1049,7 @@ const SETTINGS_SCHEMA = {
         requiresRestart: true,
         default: false,
         description:
-          'Enable the native LSP client to connect to language servers discovered in the workspace.',
+          'Enable the native LSP client. Prefer using --experimental-lsp command line flag instead.',
         showInDialog: false,
       },
       allowed: {