feat(prompts): implement Topic-Action-Summary model for verbosity reduction (#21503)

packages/cli/src/config/config.ts

@@ -813,6 +813,7 @@ export async function loadCliConfig(
     disabledSkills: settings.skills?.disabled,
     experimentalJitContext: settings.experimental?.jitContext,
     modelSteering: settings.experimental?.modelSteering,
+    topicUpdateNarration: settings.experimental?.topicUpdateNarration,
     toolOutputMasking: settings.experimental?.toolOutputMasking,
     noBrowser: !!process.env['NO_BROWSER'],
     summarizeToolOutput: settings.model?.summarizeToolOutput,

packages/cli/src/config/settingsSchema.ts

@@ -1994,9 +1994,18 @@ const SETTINGS_SCHEMA = {
           },
         },
       },
+      topicUpdateNarration: {
+        type: 'boolean',
+        label: 'Topic & Update Narration',
+        category: 'Experimental',
+        requiresRestart: false,
+        default: false,
+        description:
+          'Enable the experimental Topic & Update communication model for reduced chattiness and structured progress reporting.',
+        showInDialog: true,
+      },
     },
   },
-
   extensions: {
     type: 'object',
     label: 'Extensions',