Bind a brain

By the end of this page your Copilot will be connected to an agent and able to respond.

The brain is what actually answers users. A Copilot has no logic of its own — it forwards each message to a bound AI Agent or Multi-Agent System (MAS) and streams the reply back.

Prerequisites

A Copilot open in the Studio (Studio tour).
A published AI Agent (Publish) or a Multi-Agent System to bind.

Choose a mode

Open the Brain tab. At the top, a toggle switches between two modes:

Single Agent — one AI Agent handles every conversation. Best for a focused assistant.
Multi-Agent System — a MAS router sends each message to the right member agent. Best when you need several specialists behind one chat (MAS overview).

⚠️

Switching modes when you already have a binding prompts Replace bindings? — the existing agent or system binding is removed. Re-select afterward.

Single Agent

Add an agent

Only published AI agents can be bound. Click Add Agent, search with Search AI agents…, and pick one. The first agent you add becomes the Default.

Brain tab in Single Agent mode with one bound agent marked Default

Manage bound agents

Each bound agent shows its name and a Default badge if it’s the default. On hover you get two controls:

Set as default (star) — make this the agent that answers.
Remove (trash) — unbind it.

ℹ️

For a focused Copilot, bind a single agent. To route across multiple specialists, use a Multi-Agent System — its router picks the right member per message.

Need a brain that doesn’t exist yet? The Create new agent link opens the agent builder in a new tab. Build and publish it, then return and add it here.

Multi-Agent System

Switch the toggle to Multi-Agent System, then click Add Multi-Agent System. A dialog titled Select Multi-Agent System lists your systems.

⚠️

Only published systems can be bound — the dialog notes “Only PUBLISHED systems can be bound to copilots.” Every member agent must also have a published version before the Copilot can deploy.

Once bound, the system card shows its routing pattern and member count, and lists the Member Agents (auto-deployed) — you don’t deploy members separately.

Brain tab in Multi-Agent System mode showing a bound system, its pattern, and member agents

The card labels the system’s routing pattern — the Conversation Router, which sends each message to the best-matching member agent. Routing is decided from each member’s skills; build and tune the system in MAS Systems.

To swap systems, use Change System; to unbind, use the remove control.

Confirm it’s bound

When a brain is set, the brain status pill in the header shows its name instead of No brain bound, and the live preview becomes an interactive chat. Head to Test to try it.

Common issues

“No agents bound. The copilot won’t respond…” — Add at least one agent (or switch to MAS and bind a system).
A published agent isn’t listed — Only active AI Agents in this project appear. Task Agents and inactive agents aren’t eligible as a Copilot brain.
A system is greyed out in the dialog — It isn’t published yet. Publish the system (and every member’s version) first.