Built-in tools›Agent orchestration

Group

Agent orchestration

Turned on by

Comes with any tool that starts background work (subagents, workflows, background shells).

Approval

Not reviewed: runs without asking, within the limits on this page.

Profile key

tool.box.description

The tool Mewrk uses to hand the model background results and its own notices in the middle of a conversation, offered only when Conversation settings → Advanced tools → Host message container is box tool result.

The model never needs to call it: Mewrk writes the call itself and the message arrives as its result, so each delivery is a row of its own on the timeline. It delivers:

• results of background tasks the model did not collect with task_wait;
• context a hook added, and skills you selected after the conversation started;
• language-server problems, and changes to files the model had read;
• a request to go on after a reply hit the model's output limit;
• on models without the Mid-conversation system prompts capability, plan-mode guidance, the auto-compact handoff request and System prompt cards placed lower down the timeline. Other models get these as system messages.

Good to know

• A box row is a message from Mewrk, never from you. Editing its text on the timeline changes what the model sees from then on.
• The model calling box itself does nothing.
• On a model with Asynchronous tool calls, a subagent's or workflow's result does not come in box: it is the output of the call that started it.
• The other container is a user message; Messages from Mewrk weighs the two.

Parameters