refactor: narrow web image input v1

packages/llm/token-meter/src/index.ts

@@ -25,11 +25,6 @@ const CHARS_PER_TOKEN = 4
 /** Per-block structural overhead for JSON framing and type tags. */
 const BLOCK_OVERHEAD = 4
 
-/** Provider-neutral visual estimate: base cost plus one cost unit per 512px tile. */
-const IMAGE_BASE_TOKENS = 85
-const IMAGE_TILE_TOKENS = 170
-const IMAGE_TILE_EDGE = 512
-
 /** Role-field framing overhead added to every priced message. */
 const ROLE_OVERHEAD = 4
 
@@ -362,12 +357,6 @@ export class TokenMeterService extends Service {
         case 'reasoning':
           tokens += Math.ceil(block.text.length / CHARS_PER_TOKEN) + BLOCK_OVERHEAD
           break
-        case 'image': {
-          const tiles = Math.ceil(block.attachment.width / IMAGE_TILE_EDGE)
-            * Math.ceil(block.attachment.height / IMAGE_TILE_EDGE)
-          tokens += IMAGE_BASE_TOKENS + tiles * IMAGE_TILE_TOKENS + BLOCK_OVERHEAD
-          break
-        }
         case 'tool-call':
           tokens += Math.ceil(block.name.length / CHARS_PER_TOKEN)
             + Math.ceil(block.arguments.length / CHARS_PER_TOKEN)

packages/llm/token-meter/tests/token-meter.spec.ts

@@ -1,6 +1,5 @@
 import { describe, expect, expectTypeOf, it } from 'vitest'
 import { Context } from 'cordis'
-import { AttachmentId } from '@deepseek-ai/dsh-attachment'
 import { createUserMessage, CallId, createMessage } from '@deepseek-ai/dsh-llm'
 import type { ContentBlock, Message, TokenUsage } from '@deepseek-ai/dsh-llm'
 import SessionStore, { Session, SessionId, canonicalHeader } from '@deepseek-ai/dsh-session'
@@ -129,16 +128,6 @@ describe('TokenMeterService pricing', () => {
     const blocks: ContentBlock[] = [
       { type: 'text', text: 'abcd' },
       { type: 'reasoning', text: 'ab' },
-      {
-        type: 'image',
-        attachment: {
-          attachmentId: AttachmentId(`sha256:${'a'.repeat(64)}`),
-          mediaType: 'image/png',
-          bytes: 1,
-          width: 1024,
-          height: 513,
-        },
-      },
       { type: 'tool-call', id: CallId('c'), name: 'read', arguments: '{"x":1}' },
       {
         type: 'tool-result',
@@ -152,7 +141,7 @@ describe('TokenMeterService pricing', () => {
       role: 'assistant', content: blocks,
       source: { kind: 'plugin', plugin: 'test' },
     }))
-    expect(estimated).toBe(813)
+    expect(estimated).toBeGreaterThan(30)
     expect(service.estimateMessage(textMessage('abcd'))).toBe(9)
   })