Protocol Overview
SSE is a simple text-based protocol. Events are separated by blank lines, and each event has fields prefixed withevent: and data:.
Event Format
Each event consists of:event:line — The event type (progress,complete, orerror)data:line — JSON payload- Blank line — Event delimiter
Event Types
progress
Sent periodically during processing.
Agent-emitted progress events also include
agentId, executionId, and iteration identifiers.

