workinf_Blender_Wasm/docs/status/M16-GAP-00185.md

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