typed-ui-boundary

name	typed-ui-boundary
description	Keep UI focused on rendering and input while preserving typed boundaries
metadata	{"type":"Reference","origin":"harness-engineering/ch9","helpful":0,"harmful":0,"status":"active"}

Typed UI Boundary

Rules

1. UI renders state and captures input.
2. UI does not import ORM clients or repositories.
3. Client components do not import server-only modules.
4. Props and form payloads have explicit types.
5. Validation schemas are shared intentionally, not copy-pasted.

Checklist

• UI files contain no direct DB access
• use client files do not import server-only modules
• Props are typed
• Form validation is not duplicated inconsistently