create-prd-architecture

Overview

Prerequisites

1. Stack decisions completed
2. Required map cells available for Hosting, ORMs, Databases

Step-by-Step

Step 0 — Map guard and context reload

1. Validate required map cells from .claude/instructions/tech-stack.md.
2. If any required cell is empty: stop and request map completion.
3. Read ideation context sources (index, constraints, global/domain CX, domain indexes or digest).
4. Resume/initialize checkpoint.

Step 1 — System architecture section

Design and confirm:

1. Component diagram
2. Data flow lifecycle
3. Deployment topology
4. API surface
5. Deployment strategy
6. Surface interconnection (when multi-surface)
7. Shared domain boundary ownership

Write confirmed ## System Architecture to .memory/wiki/specs/architecture-draft.md immediately.

Step 2 — Error architecture section (hard gate)

1. Run error architecture interview.
2. Confirm all five required decisions.
3. Write ## Error Architecture with five sub-sections and canonical envelope example.

Step 3 — Data strategy section

1. Run data strategy interview using database/ORM skill guidance.
2. Define placement, schema approach, query patterns, migrations, PII boundaries.
3. For multi-surface: define ownership and sync protocol.
4. Run cross-store entity consistency pass.
5. Write confirmed ## Data Strategy to architecture draft.

Step 4 — Data placement document

Create .memory/wiki/specs/data-placement-strategy.md from template using locked data decisions.

Completion Checklist

• Map guard passed
• Ideation context reloaded
• System architecture written and confirmed
• Error architecture written and confirmed
• Data strategy written and confirmed
• Cross-store consistency captured
• data-placement-strategy.md created
• Checkpoint updated

Next Steps

• Run create-prd-security