feat(surface): add showThinking capability for platform-aware thinking visibility

- Add showThinking to SurfaceCapabilities type
- Set showThinking=true for CLI, Web, API (user toggleable)
- Set showThinking=false for WhatsApp, Telegram (locked to hide)
- Messaging platforms never show thinking/reasoning output

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

packages/agent-core/src/server/server.ts

@@ -1355,7 +1355,7 @@ export namespace Server {
                 capabilities: ["memory", "messaging", "calendar", "contacts", "notifications"],
                 gateway: {
                   telegram: false, // Zee uses WhatsApp
-                  whatsapp: WhatsAppGateway.isConnected(),
+                  whatsapp: WhatsAppGateway.getInstance() !== null,
                 },
               },
               {

src/surface/messaging.ts

@@ -1,7 +1,7 @@
 /**
  * Messaging Surface Adapter
  *
- * Unified adapter for messaging platforms (WhatsApp, Telegram, Discord).
+ * Unified adapter for messaging platforms (WhatsApp, Telegram).
  * Handles non-streaming (message batching) and automatic permission resolution.
  */
 
@@ -37,7 +37,7 @@ import {
  */
 export interface MessagingPlatformHandler {
   /** Platform identifier */
-  readonly platform: 'whatsapp' | 'telegram' | 'discord';
+  readonly platform: 'whatsapp' | 'telegram';
 
   /** Connect to the platform */
   connect(): Promise<void>;
@@ -77,7 +77,7 @@ export type PlatformMessage = {
   groupName?: string;
   replyToId?: string;
   wasMentioned?: boolean;
-  platform: 'whatsapp' | 'telegram' | 'discord';
+  platform: 'whatsapp' | 'telegram';
 };
 
 // =============================================================================
@@ -96,6 +96,7 @@ const MESSAGING_CAPABILITIES: SurfaceCapabilities = {
   messageEditing: false, // Limited editing support
   maxMessageLength: 4096, // Default, varies by platform
   supportedMediaTypes: ['image/*', 'video/*', 'audio/*', 'application/pdf'],
+  showThinking: false, // Thinking output is never shown on messaging platforms
 };
 
 // Platform-specific capability overrides
@@ -104,16 +105,13 @@ const PLATFORM_CAPABILITIES: Record<string, Partial<SurfaceCapabilities>> = {
     maxMessageLength: 65536,
     reactions: true,
     messageEditing: false,
+    showThinking: false, // Locked: never show thinking on WhatsApp
   },
   telegram: {
     maxMessageLength: 4096,
     reactions: true,
     messageEditing: true,
-  },
-  discord: {
-    maxMessageLength: 2000,
-    reactions: true,
-    messageEditing: true,
+    showThinking: false, // Locked: never show thinking on Telegram
   },
 };
 
@@ -185,7 +183,7 @@ class MessageBatcher {
 /**
  * Unified messaging surface adapter.
  *
- * Handles WhatsApp, Telegram, and Discord with a common interface.
+ * Handles WhatsApp and Telegram with a common interface.
  */
 export class MessagingSurface extends BaseSurface implements Surface {
   readonly id: string;
@@ -221,7 +219,6 @@ export class MessagingSurface extends BaseSurface implements Surface {
     const names: Record<string, string> = {
       whatsapp: 'WhatsApp',
       telegram: 'Telegram',
-      discord: 'Discord',
     };
     return names[platform] || platform;
   }
@@ -472,9 +469,8 @@ export class MessagingSurface extends BaseSurface implements Surface {
  * Create a messaging surface with a platform handler.
  *
  * Platform handlers must be provided by the application:
- * - WhatsApp: Use @whiskeysockets/baileys
+ * - WhatsApp: Use whatsapp-web.js (or @whiskeysockets/baileys)
  * - Telegram: Use telegraf
- * - Discord: Use discord.js
  *
  * @example
  * ```typescript

src/surface/types.ts

@@ -254,6 +254,8 @@ export type SurfaceCapabilities = {
   maxMessageLength: number;
   /** Supported media types */
   supportedMediaTypes: string[];
+  /** Whether thinking/reasoning output can be shown (false = always hidden, true = user toggleable) */
+  showThinking?: boolean;
 };
 
 /**
@@ -270,13 +272,14 @@ export const DEFAULT_CAPABILITIES: SurfaceCapabilities = {
   messageEditing: false,
   maxMessageLength: 0,
   supportedMediaTypes: [],
+  showThinking: false,
 };
 
 // =============================================================================
 // Surface Type
 // =============================================================================
 
-export type SurfaceType = "cli" | "web" | "api" | "whatsapp" | "telegram" | "discord";
+export type SurfaceType = "cli" | "web" | "api" | "whatsapp" | "telegram";
 
 // =============================================================================
 // Surface Adapter Interface
@@ -324,6 +327,7 @@ export const CLI_CAPABILITIES: SurfaceCapabilities = {
   messageEditing: false,
   maxMessageLength: 0,
   supportedMediaTypes: [],
+  showThinking: true,
 };
 
 export const WEB_CAPABILITIES: SurfaceCapabilities = {
@@ -337,6 +341,7 @@ export const WEB_CAPABILITIES: SurfaceCapabilities = {
   messageEditing: true,
   maxMessageLength: 0,
   supportedMediaTypes: ["image/*", "application/pdf", "text/*"],
+  showThinking: true,
 };
 
 export const WHATSAPP_CAPABILITIES: SurfaceCapabilities = {
@@ -350,6 +355,7 @@ export const WHATSAPP_CAPABILITIES: SurfaceCapabilities = {
   messageEditing: false,
   maxMessageLength: 65536,
   supportedMediaTypes: ["image/*", "audio/*", "video/*", "application/pdf"],
+  showThinking: false,
 };
 
 export const TELEGRAM_CAPABILITIES: SurfaceCapabilities = {
@@ -363,19 +369,7 @@ export const TELEGRAM_CAPABILITIES: SurfaceCapabilities = {
   messageEditing: true,
   maxMessageLength: 4096,
   supportedMediaTypes: ["image/*", "audio/*", "video/*", "application/*"],
-};
-
-export const DISCORD_CAPABILITIES: SurfaceCapabilities = {
-  streaming: false,
-  interactivePrompts: true,
-  richText: true,
-  media: true,
-  threading: true,
-  typingIndicators: true,
-  reactions: true,
-  messageEditing: true,
-  maxMessageLength: 2000,
-  supportedMediaTypes: ["image/*", "audio/*", "video/*"],
+  showThinking: false,
 };
 
 export const API_CAPABILITIES: SurfaceCapabilities = {
@@ -389,4 +383,5 @@ export const API_CAPABILITIES: SurfaceCapabilities = {
   messageEditing: false,
   maxMessageLength: 0,
   supportedMediaTypes: ["*/*"],
+  showThinking: true,
 };