# M16-GAP-00104 Status

status: done
task: VERTEX_WEIGHT_MIX modifier LOCAL_EXACT slice
updated: 2026-08-20 America/New_York

scope: Mesh VERTEX_WEIGHT_MIX modifier stack exposure for `mesh:WebGapVertexWeightMixMesh`.

evidence:

- Desktop fixture exposes `WebGapVertexWeightMix` as VERTEX_WEIGHT_MIX type code 37; save/reopen is exact.
- WASM/Main exposes the same VERTEX_WEIGHT_MIX stack entry with matching generic visibility flags; save/reopen is exact.
- Malformed Blend input is rejected without mutating Main.
- Generator, npm comparator, and direct comparator exited 0.

knownRisk: Vertex weight mixing evaluation remains metadata-only; this slice covers modifier stack transport and base metadata only.

nextTask: `M16-GAP-00105`