workinf_Blender_Wasm/docs/status/M16-GAP-00281.md

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