workinf_Blender_Wasm/docs/status/M16-GAP-00186.md

M16-GAP-00186 Status

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

scope:

• The minimal fixture contains one selected/active object with a custom insert_target property and a named active Keying Set. Its Action starts with keys at frames 1 and 5. A foreground VIEW_3D context invokes ANIM_OT_keyframe_insert() (poll=true, FINISHED) at frame 3, inserting the current key while preserving the existing keys.

evidence:

• Desktop evidence records the Action changing from [1, 5] to [1, 3, 5]; the inserted key is the only selected key ([false, true, false]), the custom property remains at 3.0, and save/reopen is exact.
• WASM/Main reads the same Action as one [\"insert_target\"][0] channel with two keyframes before the operation fixture and three keyframes after it. WASM save/reopen is exact, and malformed Blend input is rejected without Main mutation.
• Fixture generation, foreground VIEW_3D 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 custom-property channel.

nextTask: M16-GAP-00187