toolOutputSchema property

SchemanticType<Output>? toolOutputSchema

The schema of Output, as passed to the constructor's outputSchema. It is what the model, the Dev UI and MCP tools/list see as the tool's output.

final weather = ai.defineTool(
  name: 'weather',
  description: 'Current weather',
  outputSchema: Weather.$schema,
  fn: (city, ctx) async => .response(await fetchWeather(city)),
);
weather.toolOutputSchema; // Weather.$schema
weather.outputSchema;     // always null: see below

It can't be the inherited outputSchema: that getter is typed by the action's output, which for a tool is the ToolResult wrapper (a response or an interrupt), not Output.

Implementation

final SchemanticType<Output>? toolOutputSchema;