Introduce initial screen reader mode handling and flag (#6653)

packages/cli/src/config/config.ts

@@ -73,6 +73,7 @@ export interface CliArgs {
   listExtensions: boolean | undefined;
   proxy: string | undefined;
   includeDirectories: string[] | undefined;
+  screenReader: boolean | undefined;
 }
 
 export async function parseArguments(): Promise<CliArgs> {
@@ -229,6 +230,11 @@ export async function parseArguments(): Promise<CliArgs> {
             // Handle comma-separated values
             dirs.flatMap((dir) => dir.split(',').map((d) => d.trim())),
         })
+        .option('screen-reader', {
+          type: 'boolean',
+          description: 'Enable screen reader mode for accessibility.',
+          default: false,
+        })
 
         .check((argv) => {
           if (argv.prompt && argv['promptInteractive']) {
@@ -465,6 +471,9 @@ export async function loadCliConfig(
 
   const sandboxConfig = await loadSandboxConfig(settings, argv);
 
+  // The screen reader argument takes precedence over the accessibility setting.
+  const screenReader =
+    argv.screenReader ?? settings.accessibility?.screenReader ?? false;
   return new Config({
     sessionId,
     embeddingModel: DEFAULT_GEMINI_EMBEDDING_MODEL,
@@ -490,7 +499,10 @@ export async function loadCliConfig(
       argv.show_memory_usage ||
       settings.showMemoryUsage ||
       false,
-    accessibility: settings.accessibility,
+    accessibility: {
+      ...settings.accessibility,
+      screenReader,
+    },
     telemetry: {
       enabled: argv.telemetry ?? settings.telemetry?.enabled,
       target: (argv.telemetryTarget ??