Domain and publish date filters for Web Search on AgentCore

This article announces runtime domain and published-date filtering for Web Search on Amazon Bedrock AgentCore, enabling developers to control which web sources agents consult and enforce content freshness requirements.

• Runtime domain filtering with include/exclude lists (up to 100 domains each) per API call
• Published-date filtering using ISO-8601 UTC bounds to restrict results to specific time windows
• Layered filtering model combining admin-level policies with runtime filters for enterprise governance
• Web Search expanded to eu-west-1 (Dublin) and ap-northeast-1 (Tokyo) regions
• Zero data egress architecture keeps search queries within AWS infrastructure
• Server-side enforcement with no client-side filtering loops or additional roundtrips required
• Fully backward compatible; new fields are optional and additive

Organizations can now build trustworthy, policy-compliant agents that restrict sources to approved domains, enforce temporal scoping, and apply dynamic per-tenant policies without sacrificing simplicity or data security.