✓ PASS

tanstack-ai 1.4.0

stream.error-midstream · ollama

Requirements

Id	Level	Status	Evidence
error-reported	MUST	SATISFIED	outcome=returned; error.category="api"; finish.value=null (absent); truth.finish="error"

What the provider sent

Finish

error

Raw finish

null

Text

Octopuses are master of camouflage,

Tool calls

[]

Usage

{
  "alternatives": {},
  "cached_input": null,
  "input": null,
  "output": null,
  "raw": {},
  "reasoning": null,
  "total": null
}

Stream completed

false

Error

Message: an error was encountered while running the model
Status: null
Type: null
Code: null

Wire excerpt

status: 200
content-type: application/x-ndjson
body (ndjson):
{"model":"qwen3.5:0.8b","created_at":"2026-10-12T19:01:19.421674958Z","message":{"role":"assistant","content":"Oct"},"done":false}
{"model":"qwen3.5:0.8b","created_at":"2026-10-12T19:01:19.533325633Z","message":{"role":"assistant","content":"op"},"done":false}
{"model":"qwen3.5:0.8b","created_at":"2026-10-12T19:01:19.533383631Z","message":{"role":"assistant","content":"uses"},"done":false}
{"model":"qwen3.5:0.8b","created_at":"2026-10-12T19:01:19.533501035Z","message":{"role":"assistant","content":" are"},"done":false}
{"model":"qwen3.5:0.8b","created_at":"2026-10-12T19:01:19.65099542Z","message":{"role":"assistant","content":" master"},"done":false}
{"model":"qwen3.5:0.8b","created_at":"2026-10-12T19:01:19.759551535Z","message":{"role":"assistant","content":" of"},"done":false}
{"model":"qwen3.5:0.8b","created_at":"2026-10-12T19:01:19.872036409Z","message":{"role":"assistant","content":" camouflage"},"done":false}
{"model":"qwen3.5:0.8b","created_at":"2026-10-12T19:01:19.982184117Z","message":{"role":"assistant","content":","},"done":false}
{"error":"an error was encountered while running the model"}

What the library reported

Outcome

returned

Finish

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

Text

Value: Octopuses are master of camouflage,
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": 11,
  "completed": false,
  "used": true
}

Error

Type: RUN_ERROR
Message: an error was encountered while running the model
Category: api
Retry after: null
Stack top: null

Unsupported reason

null

Full observation JSON

{
  "elapsed_ms": 94.87885599999998,
  "error": {
    "category": "api",
    "message": "an error was encountered while running the model",
    "retry_after": null,
    "stack_top": null,
    "type": "RUN_ERROR"
  },
  "finish": {
    "raw": null,
    "source": null,
    "surface": "absent",
    "value": null
  },
  "format": "wiretruth.observation/v1",
  "library": {
    "api": "chat",
    "language": "javascript",
    "name": "tanstack-ai",
    "version": "1.4.0"
  },
  "notes": [],
  "outcome": "returned",
  "stream": {
    "chunks_seen": 11,
    "completed": false,
    "used": true
  },
  "structured": {
    "attempted": false,
    "returned_as_success": false,
    "value": null
  },
  "text": {
    "surface": "primary",
    "value": "Octopuses are master of camouflage,"
  },
  "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 ollama/stream.error-midstream

Provenance	Value
Transform	inject_error_event
Source fixture	ollama/truncation.text-stream
Rationale	The provider reports an error after starting a successful HTTP stream.
Evidence	https://docs.ollama.com/api/errors

Reproduce

wiretruth serve ollama/stream.error-midstream

Plain-library snippet from the shim manifest.

createOllamaChat(model, { host: WIRETRUTH_BASE_URL_OLLAMA }); POST /api/chat.

Upstream

No matching upstream report.

History

Version	Grade
1.4.0	✓ PASS
1.0.0	✓ PASS
0.71.0	✓ PASS