AWS CloudWatch search logs by tags

TIL that CloudWatch Logs now supports querying by tags: https://aws.amazon.com/about-aws/whats-new/2026/05/amazon-cloudwatch-logs-query-by-tags/

This is useful for humans in accounts with a lot of log groups, but for AI-driven SRE workflows this should reduce the need for agents to have “inventory awareness” of logs (which is often messy/brittle) and make it possible to describe the slice of the system you care about - using intent-like attributes such as env=prod, service=payments, or tier=backend.