# M16-GAP-00255 Status

status: done
task: armature.select_mirror operator LOCAL_EXACT slice
updated: 2026-08-23 America/New_York

scope:

- The minimal fixture contains a selected `.L` bone, an unselected `.R` mirror,
  and an unrelated center bone. Blender desktop runs
  `ARMATURE_OT_select_mirror(only_active=false, extend=false)`, mirroring the
  selection to `.R` and preserving the unrelated bone and geometry.
- WASM/Main reads the same fixture. The comparator confirms desktop/WASM parity
  and save/reopen stability.

evidence:

- Fixture generation, desktop checker, npm comparator, direct comparator,
  malformed-input negative, save/reopen check, and task-context handoff passed.
- Repeated checker execution is idempotent (`SKIPPED_ALREADY_APPLIED` after
  the first run); Chromium-only policy was preserved and no Firefox/WebKit run
  was made.

nextTask: `M16-GAP-00256`