# M16-GAP-00099 Status status: done task: SURFACE_DEFORM modifier LOCAL_EXACT slice updated: 2026-08-20 America/New_York scope: Mesh SURFACE_DEFORM modifier stack exposure for `mesh:WebGapSurfaceDeformMesh`. evidence: - Desktop fixture exposes `WebGapSurfaceDeform` as SURFACE_DEFORM type code 52; save/reopen is exact. - WASM/Main exposes the same SURFACE_DEFORM 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: Surface deformation binding/evaluation remains metadata-only; this slice covers modifier stack transport and base metadata only. nextTask: `M16-GAP-00100`