After creating a new custom agent, you can use it via the chat. To use a custom agent, click on Select AI mode:Then, select your custom agent from the menu:You can attach files in the chat to ask the custom agent to perform actions on them by clicking on Attach:
WARNING: Files attached to the chat can only be used with a Custom Agent in the chat itself. Currently, attachments are not accessible when a custom agent is invoked via the API.