Confidence threshold
Confidence threshold — a number you choose; if Choice/Score confidence is below it, code abstains or reviews instead of taking the argmax.
TypeSafe examples often use 0.5 as a “genuinely unsure” floor and 0.9 for high-stakes acts. Those are illustrations. Noul uses a separate τ on noul, not confidence. Do not copy a Noul τ onto a Choice.
Worked use: triage thresholds. Official: docs.typesafe.ai/confidence.
Sources
Public TypeSafe or adjacent documentation only. No private claims.