ReadonlyattemptThe attempt that wrote late, 1-based.
ReadonlychannelReadonlykeyThe state key (a dotted path for a nested write), the emitted event's name (a diagnostic's emit name —
log.debug.<key>, metric.<name> — for $debug / $metric / …), detach:<child root id>, or — on the
'attempt' channel (P2) — call:<target> (a $call started, or a call's record arriving, after its attempt
ended) or observed:<target> (an observed report after it).
A write, emit, diagnostic, detach or call an attempt tried AFTER it had ended — timed out, aborted or failed — dropped at the scope and recorded on its stage (
StageSnapshot.lateWrites, the first 100 —StageContext · MAX_LATE_WRITES). A name, never the value.