# M16-GAP-00201 Status

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

scope:

- The minimal fixture uses the active Dope Sheet animation region and a deterministic border gesture to set the Scene preview range to `2..6` through `ANIM_OT_previewrange_set`.
- WASM/Main observes the same `previewRange` and frame bounds; no reader, protocol, or browser change was required.

evidence:

- Desktop evidence records the animation-region poll, `FINISHED`, `PREVIEW_RANGE_SET`, the `2..6` values, and exact save/reopen.
- WASM/Main compares the preview range from the same fixture, preserves it across save/reopen, and rejects malformed Blend input without Main mutation.
- Fixture generation, desktop checker, npm comparator, direct comparator, and task-context checks passed. Chromium-only policy was preserved; no Firefox/WebKit run was made.

nextTask: `M16-GAP-00202`