Nine rulings land as code. Reorders don't stamp — one container-change
predicate (WriteOperation.rewritesOrderOnly): within-container reorders
and the renumber rescale rewrite only order, while cross-lane, cross-board,
and trash moves stamp modified and clear modified-by; no trash special
case exists, and the m8 undo inverses conform through the same seam.
Copies are transactions: the root-strict/nested-lenient split retires for
a whole-subtree stampability preflight that refuses loudly naming the
offender, and every item-level copy severs remote/remote-state at every
level (whole-board forks carry them verbatim). Paste refuses, never
degrades: the embedded-index.md materialization and its loss row retire;
a missing staged snapshot produces nothing and posts an error-tone
one-shot named from manifest metadata. Coerce-tier fallbacks log through
the Defect stream with path context attached loader-side. Displacement is
level-uniform: a file squatting attachments inside a card heals by the
same rename ladder as board-root squatters; comments stays tolerated.
Delete Immediately joins card and lane context menus as Delete's
⌥-alternate with its own VO custom action, routed through an explicit
container so the menu target outranks standing selection. Agent guide v7
teaches the stamp discipline and the card-level attachments claim, and
sheds two stale v6 lines (lanes trash now; kind is taught). Verified
conformant, unchanged: edition-aware Undo/Redo disable, trash marquee
full-height backdrop.
Both schemes 1854 tests / 318 suites green; verify-editions 30/30.
Claude-Session: https://claude.ai/code/session_01SR4XGjmBE16ZUYWpfFHXwY
rzen
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