Control steps

Use a control step’s name as a step’s tool_name. The conditions and bodies they share are described in Conditions and bodies.

Name	Description
`route`	Runs one of two or more branches, depending on a condition.
`filter`	Splits a list into the items that pass a per-item condition and the items that don’t.
`map`	Runs the same steps once for each item in a list and collects the results.
`reduce`	Folds a list into one value by running the same steps for each item in order.
`exit`	Ends the plan early, as a success or an error, when a condition holds.
`agent`	Hands one step to a model that calls tools until it can return structured output.
`ask`	Asks the person running the plan a question and uses their answer.