Subagents
Subagents are helpers a harness can delegate to. Each one belongs to one harness and keeps that harness’s own file format. Sessions and roles choose which ones to load.
Manage subagents
Open Settings > Agents > Subagents. Each subagent is for one harness, and its model is either “Use the session’s own model” or a specific one. Router models need a main router model first.
Subagent files are stored under ~/.tyrn/subagents/.
Use them in a session
In the “New session” form, the Subagents field chooses which to load for that session. A role can also include subagents.
Not every harness supports subagents. See Supported harnesses.