Custom Modes

A custom agent is a saved agent configuration — its own instructions, tools, and behavior — that you or someone on your workspace built for repeatable work. Custom agents don't have their own separate entry in the mode picker; they appear directly in the same picker as Agent, Autobuild, and Draft, listed by name.

Finding a custom agent

Click the mode selector at the bottom-right of the chat input. Custom agents you own appear under Your agents; agents someone has shared with you appear under Shared with you, labeled with who shared it. Select one by name to run your next message with that agent's configuration.

If you don't see either section, no custom agent — owned or shared — is available to you yet.

If guidance should apply only inside one project rather than as a reusable configuration, use Project Instructions instead.

Related help

Read Agent Modes for the full picker overview, including Agent, Autobuild, and Draft.