Apgar Score Reference Sheet mechanism

Model scope

The stated formula is the standard Apgar total: sum of five components, each scored 0-2, producing a valid range of 0-10. No unit conversion is applicable.

No additional formula finding is recorded.

Units and conventions

• Each input is an integer Apgar rubric score from 0 through 2, not a raw measurement.
• Heart rate, respiration, muscle tone, reflex irritability, and color are scored according to the standard Apgar rubric before entry.
• The total is dimensionless and ranges from 0 to 10.

Inspectable vector

One of 4 source-bound review vectors:

{
  "inputs": {
    "heart_rate": 0,
    "respiration": 0,
    "muscle_tone": 0,
    "reflex": 0,
    "color": 0
  },
  "expected_outputs": {
    "total_apgar_score": 0
  },
  "working": "0 + 0 + 0 + 0 + 0 = 0"
}

Failure boundary

BREAK_CLAIMED · SELF_FLAGGED

The extreme-magnitude vector exposes a likely robustness hazard: without strict 0-2 validation, plain JavaScript arithmetic produces Infinity rather than a bounded 0-10 result. The branch and convention probes also show that invalid component values and clinically interpreted color descriptions require explicit validation and rubric labeling.

Other records

Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

• VERIFIED_LEDGER.json
• evidence-tranche4/tranche4-results.json
• BOUNDARY_HAZARD_CATALOG.json