The v5 guide prose, verified two ways. A scripted walkthrough gave a
fresh agent nothing but the guide and a demo board: it created a card
(fresh lowercase UUID, correct bottom rank), moved one to a lane top
with modified and modified-by re-stamped, deleted one into .trash/,
attached a file into attachments/, picked `fern` off the palette table,
and quoted a colon title — and the resulting board loads through
BoardLoader with zero warnings. The walkthrough's one finding is fixed:
the trash-arrival rule now reads formulaically ("smallest order minus
1024") instead of the spatially ambiguous "below the smallest order".
Content drift-guards join the suite: every palette name the app resolves
must appear in the guide (a Palette rename now fails a test instead of
teaching agents dead colors), the rewrite's conventions are present by
name (.trash/, attachments/, modified-by, CLAUDE.user.md, the
stage-only-your-own-paths rule), and the pathfinder's retired vocabulary
(media/, tombstones) cannot resurface — the only deleted: mention is the
warning never to write it.
Claude-Session: https://claude.ai/code/session_01SR4XGjmBE16ZUYWpfFHXwY
rzen
7ba90a8cc9