What to tell the operator when a reply ends without tool calls. null means
a normal finish with text — nothing to say. Everything else would otherwise
look like the chat stopping on its own: the model hit its output-token
limit (long reasoning eats it), the provider filtered the reply, or the
stream ended with nothing in it.
What to tell the operator when a reply ends without tool calls.
nullmeans a normal finish with text — nothing to say. Everything else would otherwise look like the chat stopping on its own: the model hit its output-token limit (long reasoning eats it), the provider filtered the reply, or the stream ended with nothing in it.