✓ PASS

vercel-ai 7.0.153

stream.missing-finish-abort · gemini

Requirements

Id	Level	Status	Evidence
no-normal-stop	MUST	SATISFIED	outcome=raised; finish.value=null (absent); truth.finish="none"; forbidden finish="stop"
stream-incomplete	MUST	SATISFIED	stream.completed=false; outcome=raised; truth.stream_completed=false

What the provider sent

Finish: none
Raw finish: null
Text: Octop
Tool calls: []
Usage: { "alternatives": {}, "cached_input": null, "input": 22, "output": 2, "raw": { "candidatesTokenCount": 2, "promptTokenCount": 22, "promptTokensDetails": [ { "modality": "TEXT", "tokenCount": 22 } ], "serviceTier": "standard", "totalTokenCount": 24 }, "reasoning": null, "total": 24 }
Stream completed: false
Error: null

Wire excerpt

status: 200
content-type: text/event-stream
body (sse):
data: {"candidates": [{"content": {"parts": [{"text": "Octop"}],"role": "model"},"index": 0}],"usageMetadata": {"promptTokenCount": 22,"candidatesTokenCount": 2,"totalTokenCount": 24,"promptTokensDetails": [{"modality": "TEXT","tokenCount": 22}],"serviceTier": "standard"},"modelVersion": "gemini-3.5-flash-lite","responseId": "pgTOaonbKMuV_uMPvK7d4AE"}


end: abort

What the library reported

Outcome

raised

Finish

{
  "raw": null,
  "source": null,
  "surface": "absent",
  "value": null
}

Text

Value: Octop
Surface: primary

Tool calls

[]

Usage

{
  "cached_input": null,
  "input": null,
  "output": null,
  "reasoning": null,
  "surface": {
    "cached_input": "absent",
    "input": "absent",
    "output": "absent",
    "reasoning": "absent",
    "total": "absent"
  },
  "total": null
}

Stream

{
  "chunks_seen": 4,
  "completed": false,
  "used": true
}

Error

Type: AI_APICallError
Message: Failed to process successful response
Category: api
Retry after: null
Stack top: @ai-sdk/provider-utils/dist/index.js:586

Unsupported reason

null

Full observation JSON

{
  "elapsed_ms": 137.495926,
  "error": {
    "category": "api",
    "message": "Failed to process successful response",
    "retry_after": null,
    "stack_top": "@ai-sdk/provider-utils/dist/index.js:586",
    "type": "AI_APICallError"
  },
  "finish": {
    "raw": null,
    "source": null,
    "surface": "absent",
    "value": null
  },
  "format": "wiretruth.observation/v1",
  "library": {
    "api": "streamText",
    "language": "javascript",
    "name": "vercel-ai",
    "version": "7.0.153"
  },
  "notes": [],
  "outcome": "raised",
  "stream": {
    "chunks_seen": 4,
    "completed": false,
    "used": true
  },
  "structured": {
    "attempted": false,
    "returned_as_success": false,
    "value": null
  },
  "text": {
    "surface": "primary",
    "value": "Octop"
  },
  "tool_calls": [],
  "unsupported_reason": null,
  "usage": {
    "cached_input": null,
    "input": null,
    "output": null,
    "reasoning": null,
    "surface": {
      "cached_input": "absent",
      "input": "absent",
      "output": "absent",
      "reasoning": "absent",
      "total": "absent"
    },
    "total": null
  }
}

Fixture

derived gemini/stream.missing-finish-abort

Provenance	Value
Transform	cut_stream_after
Source fixture	gemini/truncation.text-stream
Rationale	The connection closes before the stream has delivered every event.
Evidence	https://github.com/openai/openai-python/issues/2065

Reproduce

wiretruth serve gemini/stream.missing-finish-abort

Plain-library snippet from the shim manifest.

createGoogleGenerativeAI({ baseURL: WIRETRUTH_BASE_URL_GEMINI + '/v1beta', apiKey })(model)

Upstream

No matching upstream report.

History

Version	Grade
7.0.153	✓ PASS
7.0.146	✓ PASS
7.0.142	✓ PASS