A round no longer retires readings missing from the watched set, which may be empty or partial;
a module's readings are retired when its key of mesh-host_data is deleted or names fewer items.
A round refused before the watch caught up runs once it has, not an hour later. disk_round reads
this machine's key alone, as its grant allows.
Claude-Session: https://claude.ai/code/session_01NcbgfJ9Gum47zkFKWRaovL
jschoubben
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