ReadonlyslotSlot identifier (e.g., "ticket", "plan", "validation").
ReadonlylabelHuman-readable label.
ReadonlyrequiredWhether this slot is required at the current phase.
ReadonlypresentWhether evidence is present in the state.
ReadonlystatusEvaluated status.
Optional ReadonlydetailOptional detail (digest, iteration count, etc.).
Optional ReadonlyartifactCanonical artifact kind for this slot, when applicable.
Status of a single evidence slot.