Eric clicked accept-overhang on two boxes in a Kallax cube and got an
"overhang ✓" pill with no lane behind it. The cube's flat pile claims
11.7 of 13.25 inches of width, leaving 1.55 inches of standing lane —
acknowledging waives depth and height, never width, so nothing changed.
That opening is overfull, not overhung, and the button was a placebo.
The sheet now probes before offering: a laneless resident gets the
accept button only when acknowledging would actually land it a lane;
otherwise it's marked "no room" with the honest tooltip. Acknowledged
boxes that DID land show "▮ standing, proud" (their lane isn't
flippable — proud of the shelf is the whole point), plus the
retractable "overhang ✓". Verified against the live wall: the three
Etherfields monoliths on the tower's big row read standing-proud, the
squeezed cube residents read no-room, zero page errors.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016jXZFSTZQKzAC8fqpWSz9g
Eric's wall answered the orientation question with a screenshot full
of red: the capacity model assumed one flat stack per opening, so his
spine-out cubes read 200% full. His reviewer's prescription, built to
its acceptance cases: each opening packs a FLAT lane (thinnest axes
against interior height, claiming the widest flat box's width) and a
STANDING lane beside it (boxes on edge against the remaining width;
standing boxes must fit height and depth upright). The largest-
footprint class lies flat, smaller boxes stand, any box's lane is
flippable per-assignment (▬/▮ toggle in the opening view, ✱ marks an
override), and ⚠ now means NO packing fits — not merely "tall stack".
Unmeasured boxes take no lane but keep their honesty tag; dual fill
bars show each lane's budget; a broken opening is never offered by
the suggester. On the real wall: the double-wides and half the cubes
went green (7 games = 13.12" flat + 2.91" standing), and the
remaining warnings mark cubes that genuinely hold 12-16 boxes.
Both reviewer acceptance tests pass verbatim.
And the export gains the humanity Eric asked for: game pages say
where each box lives, containers list their contents, and a shelves
page draws the wall as it physically stands — proportional cells,
zones, descriptions, every opening linking its residents. Publishing
a shelf layout is a choice: --no-shelves keeps the layer out.
"shelves" joins "art" as a reserved slug. 387 tests.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016jXZFSTZQKzAC8fqpWSz9g