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Anthropic
S09
HardPremium

Design an Agent Evaluation & Guardrail Platform

Design a platform that grades agents before and after release and stops unsafe actions inside each request, without blocking the users it is meant to protect.

EvaluationGuardrailspass^kRelease GatesObservabilityLLM-as-Judge

Key Requirements

  • Guards at input, tool call and output inside a latency budget
  • A fail policy per action, decided in advance
  • A release gate on a fixed suite, run k times, compared pair by pair
  • Sampled judging of live runs with a calibrated judge
  • Confirmed failures become new test cases

Interviewer Follow-ups

  • Q1How do you handle guardrail false positives blocking legitimate actions?
  • Q2How do you A/B test a new guardrail without risking safety?
  • Q3How do you measure if guardrails are improving agent quality?
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