# WBV2-P11-002: Modifier parameter and apply family

- task: WBV2-P11-002
- parent: WBV2-P11-001
- status: in_progress
- gap: workflow:modifier_parameter_apply_family
- ownerFamily: MODIFIER
- targetImplementationClass: LOCAL_EXACT

## 目标

Extend the real Modifier Main path from enable/disable to bounded parameter and apply transactions.

## 输入与范围

- Modifier fixture: `tests/files/web/generated/WBV2-P4-001-MODIFIER.DECLARED_SLICES.blend`
- Existing native receipt: `tests/golden/WBV2-P10-002/native-engine-receipt-report.json`
- Modifier protocol: `blender-5.2.0/source/blender/web_engine/web_engine_main_state.cpp`

## 验收

- `npm --prefix web run test:e2e -- --workers=1 tests/e2e/wbv2-modifier-parameter-production.spec.ts`
- `node tools/web/generate-wbv2-modifier-parameter-receipt.mjs --write`
- `node tools/web/check-task-context.mjs --task WBV2-P11-002 --write`

Malformed, unsupported modifier, stale revision, failed apply, non-exact save/reopen, or missing evaluated Main mutation must keep in_progress and must not advance nextTask.

## 交付与回滚

- Reports: `tests/golden/WBV2-P11-002/`
- Manifest: `tests/golden/WBV2-P11-002/manifest.json`
- Rollback: restore P11-001 as queue parent without modifying Mesh evidence.