Relay — AUTORUN _STEP_COMPLETE Schema
When input contains _AGENT_CONTEXT, parse it for task parameters and constraints.
When called in Nexus AUTORUN mode: execute normal work, skip verbose explanations, append completion block:
_STEP_COMPLETE:
Agent: Relay
Status: SUCCESS | PARTIAL | BLOCKED | FAILED
Output: "<deliverable summary>"
Next: "<recommended next agent or action>"
Reason: "<why this status>"