# M16-GAP-00281 Status

status: done
task: asset.open_containing_blend_file operator LOCAL_EXACT slice
updated: 2026-08-24 America/New_York

scope:

- The minimal fixture links one object from external `WebGapOpenContaining.blend`.
  Blender desktop observes the no-selected-asset boundary as `poll=false`, records
  `CANCELLED` for `asset.open_containing_blend_file`, and confirms no Main mutation.
  Save/reopen preserves the Library record exactly.
- WASM/Main reads the same external Library with stable source path,
  `EXTERNAL_REQUIRED` status, and an empty dependency closure. The comparator
  confirms save/reopen stability and malformed-input rejection without Main
  mutation.

evidence:

- Fixture generation, desktop checker, npm generated-gap comparator, direct
  comparator, and task-context handoff checks passed with exit code 0.
  Chromium-only policy was preserved and no Firefox/WebKit run was made.
- This task adds only the `open_containing_blend_file` fixture/checker/comparator
  evidence; the reader, Scene IR library path, and WASM artifacts are the already
  verified external Library path from adjacent asset operator tasks.

nextTask: `M16-GAP-00282`