Pattern

Chain of thought

Host groups reasoning + tool-call + answer inside .au-cot. Not a catalog component — a composition recipe.

Reasoning

The user wants the weather in Tokyo. Call the weather tool first.

get_weather success 
{ "city": "Tokyo" }

{ "temp": "22C" }

It is 22C and partly cloudy in Tokyo.

Install reasoning.css + tool-call.css + chat-message.css. Escape tool args and output.