Function tool_definition_with_annotations 

pub fn tool_definition_with_annotations(
    name: impl Into<String>,
    title: Option<String>,
    description: Option<String>,
    input_schema: McpSchema,
    output_schema: Option<McpSchema>,
    annotations: Option<McpToolAnnotations>,
) -> Result<ToolDefinition, McpToolError>

Build and validate an MCP tool definition with tool annotations.

Errors

Returns McpToolError when the annotations, metadata, input schema, or output schema are invalid.