The keeper's one periodic read (ADR 0595 §6): every entry that refuses when
full, by its fullest object; full raised at the raise mark (75 by default),
cleared only below the clear mark (70), so an entry at the mark does not flap;
an entry dropping its oldest is never read. HealthOf is the keeper's health
for its tool: unhealthy when its pass is more than three minutes old, its
first view has not answered (naming the indexer's verb), or verdicts wait on
its consumer unanswered past the bound; it names the entries refused, waiting
and full beside.
Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig