# M16-GAP-00251 Status

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

scope:

- The minimal fixture contains a selected root, an unselected connected child,
  and an independent unselected bone. Blender desktop runs
  `ARMATURE_OT_select_hierarchy(direction=CHILD, extend=false)`, selecting the
  immediate connected child and making it active without changing hierarchy,
  visibility, or geometry.
- WASM/Main reads the same fixture, including armature-space child coordinates
  through `arm_head`/`arm_tail` with legacy `head`/`tail` fallback. 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, production WASM rebuild, 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-00252`