# WBV2-P12-005: domain parity gate

- task: WBV2-P12-005
- parent: WBV2-P12-004
- status: in_progress
- gap: workflow:recompute_domain_parity_gate
- ownerFamily: RELEASE
- targetImplementationClass: LOCAL_BOUNDED

## 目标

Recompute domain parity from P10-P12 receipts while retaining explicit inventory and provenance limits.

## 输入与范围

- Capability ledger: `tests/golden/WBV2-P12-001/capability-ledger-report.json`
- P11 gate: `tests/golden/WBV2-P11-004/engine-module-gate-report.json`
- P12 domain receipts
- Provenance approval: `docs/status/M12-PROVENANCE-EPOCH-2-APPROVAL.json`

## 验收

- `node tools/web/generate-wbv2-domain-parity-gate.mjs --write`
- `node tools/web/check-task-context.mjs --task WBV2-P12-005 --write`

Missing receipt, hash drift, false inventory completion, unsupported browser, undeclared claim, or false historical reproduction must keep in_progress and must not advance nextTask.

## 交付与回滚

- Reports: `tests/golden/WBV2-P12-005/`
- Status: `docs/status/WBV2-P12-005.md`
- Manifest: `tests/golden/WBV2-P12-005/manifest.json`
- Rollback: restore P12-004 as queue parent.