refactor: narrow web image input v1

packages/host/apiproxy/tests/api-proxy-models.spec.ts

@@ -118,6 +118,26 @@ function expectValue<T>(response: { result: { ok: true; value: T } | { ok: false
 }
 
 describe('Web session model selection', () => {
+  it('rejects a second prompt image before attachment persistence', async () => {
+    const { ctx, sessionId } = await harness()
+    const api = createApiProxy(ctx, { provider: 'deepseek', model: 'deepseek-chat', cwd: '/tmp', workspaceRoot: '/tmp' })
+    const image = { type: 'image' as const, mediaType: 'image/png' as const, data: 'AA==' }
+    const response = await api.sessions.prompt(request({
+      sessionId,
+      mode: 'queue' as const,
+      content: [image, image],
+    }))
+    expect(response.result).toEqual({
+      ok: false,
+      error: {
+        code: 'attachment-error',
+        message: 'A prompt may contain at most one image.',
+        details: { reason: 'TOO_MANY_IMAGES' },
+      },
+    })
+    await ctx.fiber.dispose()
+  })
+
   it('groups successful providers, isolates failures, and preserves an unlisted current model', async () => {
     const { ctx, sessionId } = await harness({
       provider: 'deepseek',

packages/host/apiproxy/tests/fetch-carrier.spec.ts

@@ -264,13 +264,6 @@ describe('unary round trip (handler ⇄ client, no network)', () => {
       hostDescription: {
         version: 'v',
         cwd: '/w',
-        activeModel: {
-          provider: 'future',
-          id: 'audio-model',
-          name: 'Audio Model',
-          inputModalities: ['text', 'audio'],
-          outputModalities: ['audio'],
-        },
         attachedSessions: 0,
       },
     }))
@@ -281,13 +274,6 @@ describe('unary round trip (handler ⇄ client, no network)', () => {
       value: {
         version: 'v',
         cwd: '/w',
-        activeModel: {
-          provider: 'future',
-          id: 'audio-model',
-          name: 'Audio Model',
-          inputModalities: ['text', 'audio'],
-          outputModalities: ['audio'],
-        },
         attachedSessions: 0,
       },
     })

packages/host/apiproxy/tests/rpc-schemas.spec.ts

@@ -249,25 +249,10 @@ describe('host domain schemas', () => {
       cwd: '/x',
       provider: 'p',
       model: 'm',
-      activeModel: {
-        provider: 'p',
-        id: 'm',
-        name: 'Model',
-        inputModalities: ['text', 'audio'],
-        outputModalities: ['text', 'audio'],
-      },
       attachedSessions: 2,
     })
     expect(value.attachedSessions).toBe(2)
-    expect(value.activeModel?.inputModalities).toEqual(['text', 'audio'])
-    expect(value.activeModel?.outputModalities).toEqual(['text', 'audio'])
     expect(hostDescribeValueSchema.parse({ version: '1', cwd: '/x', attachedSessions: 0 }).provider).toBeUndefined()
-    expect(() => hostDescribeValueSchema.parse({
-      version: '1',
-      cwd: '/x',
-      activeModel: { provider: 'p', id: 'm', name: 'Model', inputModalities: [{ type: 'audio' }] },
-      attachedSessions: 0,
-    })).toThrow()
   })
 
   it('validates the browse listing/creation payloads', () => {