# M16-GAP-00185 Status

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

scope:

- The minimal fixture contains one selected/active image strip with a Scene Action animating `blend_alpha` at frames 1, 3, and 5. A foreground `SEQUENCE_EDITOR` context invokes `ANIM_OT_keyframe_delete_vse(confirm=false)` (`poll=true`, `FINISHED`) at frame 3, deleting only the current strip keyframe and preserving the two surrounding keys.

evidence:

- Desktop evidence records the selected/active strip changing from `[1, 3, 5]` to `[1, 5]`; `blend_alpha` remains 0.5 at frame 3 and save/reopen is exact.
- WASM/Main reads the same Scene Action as one `sequence_editor.strips_all[\"WebGapAnimKeyframeDeleteVSEStrip\"].blend_alpha[0]` channel with three keyframes before the operation fixture and two keyframes after it. WASM save/reopen is exact, and malformed Blend input is rejected without Main mutation.
- Fixture generation, foreground `SEQUENCE_EDITOR` checker, npm comparator, direct idempotent comparator, and artifact hashing passed. No production reader or protocol change was required because the existing generic Action/F-Curve reader exposes this Scene channel.

nextTask: `M16-GAP-00186`