- Move description_max_length validation to tool layer
(_validate_description_max_length), matching the existing
_validate_comment_message pattern; helper now trusts callers per
CLAUDE.md ("validate at system boundaries only").
- Fix mutation/return inconsistency: deck_get_stacks now uses a list
comprehension to capture _apply_stack_filters' return, matching
deck_get_stack / deck_get_archived_stacks.
- Rename include_archived -> include_archived_cards on deck_get_cards
and _apply_card_filters for consistency with deck_get_stacks.
- Route deck_get_archived_stacks through _apply_stack_filters so
future filters apply uniformly to active + archived paths.
- Trim _truncate_card_descriptions docstring to one line; add inline
comment in _apply_stack_filters explaining the breaking-change
default (mirrors Deck UI archived-card filtering).
- Replace fragile call_args[0][1] with call_args.args[1] in the
archived-stacks client test.
- Modernize Optional[X] -> X | None throughout deck.py (adjacent
cleanup called out in the review).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
