Message-level IDs improve traceability and storage workflows

We’ve added a stable id field to every Message and exposed it in RunOutput messages. This makes it straightforward to correlate logs, audit events, and persist messages across systems without custom glue code.

Details

Use message IDs as durable keys for logging, observability pipelines, and storage records
Simplifies auditing and cross-system correlation by removing ambiguity in message identity
Backward compatible; no changes required to existing integrations

Who this is for: Teams building observability, audit/compliance, or storage integrations that need reliable message correlation at scale.