fix(node): default image describe to sonnet 4.6

Author: kvz

packages/node/src/alphalib/types/robots/ai-chat.ts

@@ -148,6 +148,7 @@ export const meta: RobotMetaInput = {
 export const MODEL_CAPABILITIES: Record<string, { pdf: boolean; image: boolean }> = {
   'anthropic/claude-4-sonnet-20250514': { pdf: true, image: true },
   'anthropic/claude-4-opus-20250514': { pdf: true, image: true },
+  'anthropic/claude-sonnet-4-6': { pdf: true, image: true },
   'anthropic/claude-sonnet-4-5': { pdf: true, image: true },
   'anthropic/claude-opus-4-5': { pdf: true, image: true },
   'anthropic/claude-opus-4-6': { pdf: true, image: true },

packages/node/src/cli/semanticIntents/imageDescribe.ts

@@ -14,7 +14,7 @@ const wordpressDescribeFields = [
   'description',
 ] as const satisfies readonly ImageDescribeField[]
 
-const defaultDescribeModel = 'anthropic/claude-4-sonnet-20250514'
+const defaultDescribeModel = 'anthropic/claude-sonnet-4-6'
 
 export const imageDescribeExecutionDefinition = {
   kind: 'dynamic-step',
@@ -43,8 +43,7 @@ export const imageDescribeExecutionDefinition = {
       kind: 'string',
       propertyName: 'model',
       optionFlags: '--model',
-      description:
-        'Model to use for generated text fields (default: anthropic/claude-4-sonnet-20250514)',
+      description: 'Model to use for generated text fields (default: anthropic/claude-sonnet-4-6)',
       required: false,
     },
   ] as const satisfies readonly IntentOptionDefinition[],

packages/node/test/unit/cli/intents.test.ts

@@ -147,7 +147,7 @@ describe('intent commands', () => {
             robot: '/ai/chat',
             use: ':original',
             result: true,
-            model: 'anthropic/claude-4-sonnet-20250514',
+            model: 'anthropic/claude-sonnet-4-6',
             format: 'json',
             return_messages: 'last',
             test_credentials: true,