Subagents

Split big tasks across specialists. An agent, the parent, can hand part of a task to another agent, its subagent, and use the result. The parent decides on its own when to delegate.

A subagent can be:

• An agent you built, such as a researcher or a reviewer.
• A built-in subagent, such as the Advisor, which reviews an agent's answer.
• An external agent on another system, over A2A.

Add Subagents

1. Open the parent agent and go to Tools, Skills & Knowledge.
2. Under Subagents, choose Manual and select the agents.
3. Save, and send a task in Chat that needs one of them.

What to know:

• All mode lets the parent agent use any agent the person can access, except those you exclude. External agents are never added this way.
• Subagents must share the parent agent's environment.
• Automated runs, with no signed-in person, use only the agents you selected.
• For long coding tasks, pick a subagent with a dedicated runtime.