From Prompt to Product: Custom Development with Guardrails

Start with a narrow use case and encode domain rules as tests before wiring UIs. Introduce typed DTOs, schema validation, and input sanitization at service edges. For AI components, capture prompts as versioned artifacts with evaluation datasets to prevent regression. Add idempotent retries and circuit breakers for external calls.
As the product hardens, invest in operability: structured logs, tracing, and SLOs. A mature system exposes its health as metrics and supports zero-downtime deploys. The shift from prompt to product is a shift from possibility to reliability.