The flow's fourth node becomes a three-row team ledger: the family's
billed-token and estimated-cost totals in the header, then one row per
scope — the current agent and the subagent subtree with its session count
— each pairing its billed tokens with the estimated cost (billedTokensOf:
the token face of the same buckets the estimate prices). The subagent
scope is the WHOLE descendant tree, which the copy now spells out; the
rows render unconditionally (a scope with nothing billed reads 0 / —),
and both tooltips gloss the token figure.
bowenliang123
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