h@llo.ai Context
To work well, AI Assistants often need some context about the environment they are running in. BetterTouchTool allows you to add such context and offers some defaults like Date & Time, Selected Text, Active Application, Active Document etc. However just like tools, BTT doesn't add context by default as it is a complex balance that involves considerations about your context window, token usage and required interaction speed.
You can enable any of the default context items here:

Be aware that enabling more context items also means a larger context size. This leads to higher token usage and often slower response times.
Custom Contexts
If you want to provide custom, dynamic context to your AI Assistant you can go to the "Automations, Named & Other Triggers" section in BetterTouchTool and add a new "h@llo.ai - Custom AI Context"

Custom context's are defined by a JavaScript function that can use all of BTT's scripting functionality, see BetterTouchTool JavaScript