Steer an agent without cancelling its current work

A way to add a message to an agent’s next turn while a subagent keeps going.

Category
Developer tools
Who it is for
Developers running coding agents on long tasks.
Possible model
API
Difficulty
Medium
Inspired by
Cursor SDK · Cursor
Original launch
Watch the launch · Oct 5, 2026

Difficulty is an editorial estimate of technical and operational complexity, not a score.

Short startup notes by Startup Ideas. A longer read is added only after it is written for this launch. Last reviewed Oct 6, 2026. How we read a launch.

The problem

Correcting an agent mid-task either interrupts it or arrives too late to matter.

Who would pay for this?

Developers running coding agents on long tasks.

How could it make money?

A possible model is api. That is an editorial guess from the shape of the launch, not a published price, and not evidence that Cursor uses it.

What would the MVP look like?

One call that queues a note for the next turn and leaves background work alone.

Original product launch

This launch is inspiration and evidence that someone shipped, not a partnership. The idea above is our reading of the broader opportunity. Cursor did not write it.

Product
Cursor SDK
Company
Cursor
Film
Steer Cursor SDK agents mid-run
Posted
Oct 5, 2026 · 0:20
Open original post

Product that inspired this idea

run.steer() adds a message to the agent’s next turn. A subagent already working stays in the background.

Posted by @cursor_ai. Launch page. No separate product site is listed unless the post itself is the source.

  • agents
  • sdk

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