workinf_Blender_Wasm/docs/status/M16-GAP-00221.md

M16-GAP-00221 Status

status: done task: armature.collection_add operator LOCAL_EXACT slice updated: 2026-08-22 America/New_York

scope:

• The minimal fixture contains one armature bone assigned to WebGapArmatureCollectionAddExisting.
• Desktop runs ARMATURE_OT_collection_add with poll=true and FINISHED, creating the Bones collection as index 1 and preserving the existing bone membership through save/reopen.
• The existing Main reader exposes both bone collections and their member IDs; no new reader field, data-block, editor, or browser behavior was added.

evidence:

• The generator, desktop checker, npm comparator, direct comparator, and task-context checks passed. Repeated checker runs recognize the persisted collection and remain idempotent.
• WASM/Main observes the same collection names, indices, and memberships, preserves them across save/reopen, and rejects malformed Blend input without Main mutation.
• Chromium-only policy was preserved; no Firefox/WebKit run was made.

nextTask: M16-GAP-00222