{
  "id": "gen-1785342646-5Y27AQ84sKGv9BRQHCzY",
  "model": "deepseek/deepseek-v4-pro",
  "proposal": {
    "case_id": "map_585c99c93e6a75765671704027b2d671",
    "consultant_question": "Has the source system or table 'Account master' been captured in any evidence? If so, what columns exist that could represent an account group?",
    "coverage_assessment": "Target field Account.AccountGroup is declared in a target workbook with business definition and desired source hint, but no source column candidate has been observed in the evidence packet.",
    "evidence_artifact_ids": [
      "ev_sha256_480433cbc86b45db9ec61c5c174d60618afe10338cbd09c31c5a523ee7f33e5c"
    ],
    "proposed_relationship": "insufficient_evidence",
    "rationale": "The target workbook shows the field exists and is required, with a declared source of 'Account master / embedded mapping'. However, the deterministic mapping evidence descent found no candidate source columns within the capture boundary. As absence of evidence is not evidence of absence, the mapping relationship cannot be determined.",
    "uncertainties": [
      "Only one target workbook artifact was captured; no source system artifacts such as 'Account master' were included in evidence.",
      "The declared source hint 'Account master / embedded mapping' was not inspected, so potential source columns remain unknown."
    ]
  },
  "proposal_status": "proposed",
  "usage": {
    "completion_tokens": 857,
    "completion_tokens_details": {
      "accepted_prediction_tokens": null,
      "audio_tokens": 0,
      "image_tokens": 0,
      "reasoning_tokens": 576,
      "rejected_prediction_tokens": null
    },
    "cost": 0.0018390073,
    "cost_details": {
      "upstream_inference_completions_cost": 0.0010717642,
      "upstream_inference_cost": 0.0018390073,
      "upstream_inference_prompt_cost": 0.0007672431
    },
    "is_byok": false,
    "prompt_tokens": 1227,
    "prompt_tokens_details": {
      "audio_tokens": 0,
      "cache_write_tokens": 0,
      "cached_tokens": 0,
      "video_tokens": 0
    },
    "total_tokens": 2084
  },
  "validation_error": null
}