/* the instrument itself, before anything is asked of it: the registry
       is counting, the store is answering, and the walk is not sitting on a
       toast from the block above. tallyTicks is only asked to ANSWER (-1 is
       'no registry'), never to be non-zero: the app's own intervals were
       all started at boot, before the registry went in, so the only live
       one here belongs to the mock's playback ticker — requiring it would
       tie this guard to the mock instead of to the registry. */
    "session-warm": (i) => i.tallyEars > 0 && i.tallyTicks >= 0 && i.tallyArt > 0 && !i.toast,
    /* Nine laps later. The listener and interval counts are the sharp ones —
       both measured dead flat over the nine, twice — so their headroom is
       small on purpose; grewEars allows four for a screen that happens to
       be mounted at the second reading and not the first, and grewTicks is
       one-sided because a ticker that simply stopped between the readings
       is not a leak. Both were driven with a listener and an interval
       deliberately stranded once a lap: +9 and +9, and this line failed.
       tallyTimers is a CEILING rather than a delta, and nine of the
       thirty-two are real: every track start schedules a 47-second
       recents refresh (player.svelte.js, the desktop's own shape), so a
       walk this fast keeps a dozen of them pending at once. That window is
       bounded by its own length and does not grow with the session, while a
       genuinely leaking timer climbs past this ceiling as laps are added.
       Making it a delta would need a fifty-second quiet period between the
       two readings, which is not worth the minute — said here rather than
       tightening the number blind. tallyArt is the bound itself; grewArt's
       headroom is for a sibling round that puts more records in a lap, and
       is to be raised deliberately rather than deleted. */
    "session-late": (i) => i.grewEars <= 4 && i.grewTicks <= 0 && i.tallyTimers <= 32
        && i.tallyArt <= 512 && i.grewArt <= 80 && i.grewCat <= 24 && i.grewNodes <= 200,
    "session-clear": (i) => /^(Good |Still)/.test(i.title) && !i.toast && !i.notice && !i.half.includes("up"),