whether a MISS on a COLD object may boot the interpreter and render, rather than 503.
The difference between "the first visitor waits" and "the first visitor is turned away", and the only knob here that changes an outcome rather than a rate.
pages one alarm firing may fill before re-arming
wall-clock ms one alarm firing may occupy the object
queued outbound requests one alarm firing may fetch
wall-clock ms a MISS may spend rendering before handing the path to the alarm chain
files one alarm firing may push to R2
the per-plan defaults; every field is a per-invocation budget or a visitor-patience bound