Guardrails

Amazon has added automated policy refinement to Automated Reasoning checks in Bedrock Guardrails, replacing manual hand-editing of formal logic with two new refinement modes. Every proposed change still requires human approval before it takes effect.

Amazon Web Services launched the InvokeGuardrailChecks API for Amazon Bedrock Guardrails, enabling developers to apply individual safety checks at any point in agentic AI applications without provisioning guardrail resources. The API operates in detect-only mode and returns numeric scores (0-1 scale) for each safeguard, allowing developers to define custom thresholds and actions in their application logic.

AWS has released Automated Reasoning checks in Amazon Bedrock Guardrails, a feature that uses formal mathematical verification to validate AI outputs against defined rules. Unlike LLM-as-a-judge approaches that use one probabilistic model to validate another, Automated Reasoning provides mathematically proven, auditable compliance evidence for regulated industries.