# M16-GAP-00225 Status

status: done
task: armature.collection_move operator LOCAL_EXACT slice
updated: 2026-08-22 America/New_York

scope:

- The minimal fixture contains three bone collections, each retaining one distinct bone, with the middle collection active at index 1.
- Desktop runs `ARMATURE_OT_collection_move(direction='UP')` with `poll=true` and `FINISHED`, moving the active collection to index 0 while preserving every collection member through save/reopen.
- The existing Main reader's collection indices and bone IDs provide the observable order; no new data-block, editor, or browser behavior was added.

evidence:

- The generator, desktop checker, npm comparator, direct comparator, and task-context checks passed. Repeated checker runs recognize the already-moved order and remain idempotent.
- WASM/Main observes the same collection order, active collection identity, and bone IDs, preserves them across save/reopen, and rejects malformed Blend input without Main mutation.
- Chromium-only policy was preserved; no Firefox/WebKit run was made.

nextTask: `M16-GAP-00226`