# M16-GAP-00172 Status status: done task: anim.clear_useless_actions operator LOCAL_EXACT slice updated: 2026-08-21 America/New_York scope: - `anim.clear_useless_actions` removes the fake-user-only Action with no F-Curves while preserving the used Action and the fake-user Action library with F-Curves. evidence: - Blender desktop and WASM/Main expose the same two preserved Actions, each with three location channels and frames 1, 3, and 5; the empty Action is absent. - Save/reopen preserves the animation snapshot exactly; malformed Blend input is rejected without Main mutation. - Fixture generation, desktop checker, npm comparator, direct comparator, and artifact hashing passed. nextTask: `M16-GAP-00173`