# M16-GAP-00121 Status

status: done
task: action.extrapolation_type operator LOCAL_EXACT slice
updated: 2026-08-20 America/New_York

scope: Action Editor extrapolation-type operation on `object:WebGapExtrapolationTypeObject`.

evidence:

- Blender generator selects the Action Editor FCurves and executes `bpy.ops.action.extrapolation_type(type="LINEAR")`; all three curves report LINEAR extrapolation.
- WASM/Main now exports FCurve extrapolation metadata and matches desktop; save/reopen is exact.
- Malformed Blend input is rejected without mutating Main.
- Generator, desktop checker, WASM rebuild, npm comparator, direct comparator, context handoff, and governance exited 0.

knownRisk: This slice covers LINEAR extrapolation; constant/cyclic modes and other editor contexts remain separate operator tasks.

nextTask: `M16-GAP-00122`