Treat prompt changes like code deploys
TLDR
Teams deploying LLM-backed features typically skip testing before shipping prompt changes, unlike code deployments, because degraded outputs still return HTTP 200 responses. An evaluation gate—a required check between prompt edits and production using automated evaluators for factuality, tone, format, and safety—mirrors CI/CD practices and catches regressions before customers encounter them. Microsoft Foundry provides versioning, built-in evaluators, and GitHub Actions to implement this gate, though the platform requires explicit human or CI logic to enforce blocking rather than automatic enforcement.
Why it matters
Prompts should be treated exactly like any other artifact that can change production behavior, with testing, gates, and a default blocking gate until proven otherwise.
