task—
subtasks—
depth—
parallel—
crit path—
subtask
—
rejected
—
candidate arms · ucb = quality / cost · √explore
execution log
SWU
—
batch share
—
stack depth
—
own cache
—
provider cache
—
reward score
—
cost actual vs all-opus baseline
—
savings —
tokens reused / billed
—
quality —
artifact—