Interface MappedProgress

interface MappedProgress {
    band: null | [number, number];
    basis: ProgressBasis;
    confidence: Confidence;
    layerIndex: null | number;
    notes: ProgressNote[];
    segIndex: null | number;
    stale: boolean;
}

Properties

band: null | [number, number]

Inclusive uncertainty band [loSeg, hiSeg]; a point (lo === hi) for the byte tier.

confidence: Confidence

DD-001 vocabulary (D2): byte→known, line/layer→inferred, percent→approximated, none→unavailable.

layerIndex: null | number

Structured degradation reasons (capped at MAX_PROGRESS_NOTES).

segIndex: null | number

Last segment at-or-before the observed position; null when unavailable (or before the first segment).

stale: boolean

True once tick(now) observes now - timestampMs > staleAfterMs.