id: TASK-013B-ECR013B
ecr: ECR-013B
title: AccountLifecycle Contract Definition
role: architect
status: contract
change_level: L2
parent: WAVE0-FROZEN
predecessor: ECR-013A
inputs:
  - docs/WAVE0/
  - .ai/domain/entity-catalog.md
  - .ai/product/feature-spec/ops-account-lifecycle.md
outputs:
  - docs/ECR/ECR-013B-account-lifecycle.md
  - docs/BACKEND_DESIGN/BD-2026-013B-account-lifecycle.md
  - docs/CONTRACT_DIFF/ECR-013B.yaml
  - docs/HANDOFF/ECR-013B-architect-to-engineer.md
acceptance:
  - L0-L4 filled
  - No coding / no migration files
  - soft-delete out of scope