entry.costBreakdown = undefined;

} else if (

!isModelPricingKnown(cost) &&

(entry.costTotal === undefined || entry.costTotal === 0) &&

computeUsageTokenTotals(entry.usage).totalTokens > 0

) {

// Pricing for this model is unknown (no positive per-token rate). Any cost the

// transport recorded is a fabricated $0 derived from an all-zero catalog entry,

// not a real price. Drop it and surface the turn as a missing-cost entry so the

// tokens it burned are not reported as confident $0 spend — otherwise every

// budget/spike safeguard that reads totalCost stays blind to it.

// Pricing for this model is unknown (no positive per-token rate) and there is no

// trustworthy recorded cost — the transport either recorded nothing or a

// fabricated $0 derived from an all-zero catalog entry. Surface this token-burning

// turn as a missing-cost entry instead of recording a confident $0, so budget and

// spike safeguards that read totalCost are not left blind to it. A turn that

// carries a real positive recorded cost is preserved by the guard above.

entry.costTotal = undefined;

entry.costBreakdown = undefined;

} else if (entry.costTotal === undefined) {