Guilherme Ribeiro

Advanced ML Engineer at Loka

Guilherme Ribeiro contributes to Loka's engineering publication as a Advanced ML Engineer. Their published work covers Amazon Bedrock Guardrails, AI Agents, Strands Agents, Allowlisting.

Published work

AWS Bedrock Guardrails — Implementing an Allowlist
Guilherme Ribeiro · July 1, 2026
When building AI agents with AWS Bedrock, guardrails are your first line of defense for keeping conversations on topic. A common requirement is to restrict an agent to a pre-defined strict allowlist, blocking everything…

Published work

AWS Bedrock Guardrails — Implementing an Allowlist