# WBV2-P18-002: object create engine receipt

- task: WBV2-P18-002
- parent: WBV2-P18-001
- status: in_progress
- gap: capability:OBJECT_OPERATIONS.CREATE
- ownerFamily: OBJECT
- targetImplementationClass: LOCAL_EXACT

## 目标

Bind createPrimitive, undo/redo, malformed rejection, and exact save/reopen to compiled WASM Main in Chromium.

## 输入与范围

- Focused source: `tests/golden/WBV2-P18-001/object-create-selection-report.json`
- Production test: `web/tests/e2e/wbv2-object-create-production.spec.ts`
- Production entrypoint: `npm --prefix web run test:e2e -- --workers=1 tests/e2e/wbv2-object-create-production.spec.ts`

## 验收

- primitive creates a distinct object
- undo/redo revisions are sequential
- malformed primitive fails closed without Main mutation
- save/reopen is exact and deterministic
- malformed, hash-drift, unsupported, or false-completion input keeps in_progress
- `node tools/web/check-task-context.mjs --task WBV2-P18-002 --write`

## 交付与回滚

- Reports: `tests/golden/WBV2-P18-002/`
- Status: `docs/status/WBV2-P18-002.md`
- Manifest: `tests/golden/WBV2-P18-002/manifest.json`
- Rollback: restore P18-001 as queue parent.