The current /agents/runs/stream endpoint allows us to create an agent run, but requires us to know the trigger field names to include in the input. This is rather limited in usefulness unless you are creating a static workflow for a specific agent.
It would be incredibly useful to be able to obtain the trigger fields from an API endpoint, such the "retrieve an agent endpont" /agents/{agent_id}.
This would open up the capability of running agents via MCP.