What happened
AWS Security Blog (Aug 18, 2026) described how to implement custom authentication for tool integrations in Amazon Bedrock AgentCore Gateway using a request Lambda interceptor, extending beyond AgentCore's built-in OAuth 2.0/IAM/API-key support for enterprises with bespoke auth requirements.
Why it matters
Closes a gap for enterprises with legacy or custom auth schemes needing to safely broker agent-to-tool access through AgentCore Gateway, reducing risk of ad hoc/insecure workarounds in agentic tool integration.
Applicability
Teams building agents on Amazon Bedrock AgentCore with non-standard authentication backends should review this pattern before rolling their own interceptor.