Engineering guides

Practical guidance for CashLift's data, forms, security, observability, and release workflow.

Use these guides when changing application code or engineering workflow:

• Validation contracts — establish trusted runtime data at every boundary.
• Data fetching and mutations — keep server data, client cache, and optimistic UI consistent.
• Forms and input — build accessible forms with shared Zod contracts.
• Access and data security — preserve Clerk, Supabase RLS, and request-boundary protections.
• Observability and failures — make failures actionable without exposing user data.
• Quality checks — choose the right verification command before handoff.