Lesson 5 · 6 min
Guardrails
Input/output filters that catch policy and PII issues.
Wrap LLM calls with two filters: pre-call (refuse out-of-scope inputs) and post-call (redact PII, block disallowed content). Make filters fast and explicit — slow guardrails murder p99.
Quick check
Context & ReliabilitySelect all that apply
Which metrics belong on an LLM-app observability dashboard? (Select all that apply)