TenantAtlas/specs/405-json-to-jsonb-data-layer-hardening/checklists/requirements.md

Specification Quality Checklist: Spec 405 - JSON-to-JSONB Data-layer Hardening

Purpose: Validate specification completeness and quality before implementation preparation is handed off. Created: 2026-06-23 Feature: specs/405-json-to-jsonb-data-layer-hardening/spec.md

Content Quality

• Focused on product value, operator trust, and data-layer hardening risk.
• No application implementation is performed by this preparation package.
• Runtime implementation details are limited to expected migration/test/validation surfaces.
• Mandatory Spec Kit sections are completed or explicitly marked N/A with rationale.
• Scope excludes new product behavior, UI surfaces, authorization model changes, lifecycle semantics, and broad abstractions.

Requirement Completeness

• No unresolved clarification markers remain.
• Requirements are testable and unambiguous.
• Success criteria are measurable.
• Acceptance scenarios are defined for inventory, conversion, and regression/reporting.
• Edge cases are identified, including jsonb key order normalization and rollback limitations.
• Dependencies and assumptions are identified.
• Required final implementation report structure is defined.

Feature Readiness

• Functional requirements map to concrete tasks in tasks.md.
• User stories cover the minimum viable implementation sequence.
• The plan identifies likely affected repository surfaces without authorizing unrelated runtime edits.
• Tasks include tests, PostgreSQL validation, focused browser proof, staging-like validation handling, and final close-out.

Constitution And Product Surface Readiness

• Spec Candidate Check is completed with approval class, score, and decision.
• Completed-spec guardrail is explicit and related specs are read-only context.
• No UI surface impact is checked with a clear rationale.
• Product Surface Contract is handled as no-rendered-surface-change plus focused regression proof.
• Browser verification is required as backend regression proof for existing payload-backed surfaces.
• Human Product Sanity is scoped to unchanged trust semantics.
• Proportionality review states no new runtime framework, persisted entity, status family, or UI taxonomy.
• Test governance names PostgreSQL, feature, and focused browser lanes with fixture-cost controls.

Notes

Preparation review result: pass. The package is ready for a separate implementation loop, provided the implementation agent completes the inventory matrix before writing migrations and preserves the no-product/no-UI boundary.