toolCalls property
ToolCalls is how many tool dispatches the run made — a count of ACTIONS, which is a different measurement from the token counts above and from the turns a build reports. Zero is a run that answered straight from the model.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
int? toolCalls;