Request for feature: Add validator in ToolParam annotation

Hello all!
Just wondering if the following could be implemented, introducing a validator in the ToolParam interface.

@Target({ ElementType.PARAMETER, ElementType.FIELD, ElementType.ANNOTATION_TYPE })
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface ToolParam {

	/**
	 * Whether the tool argument is required.
	 */
	boolean required() default true;

	/**
	 * The description of the tool argument.
	 */
	String description() default "";

	/**
	 * The validator that should be called upon Tool invocation.
	 */
	ContraintValidator validator();

}

Thanks for your awesome job!

No files or tests are named. Start by locating the ToolParam annotation and the tool invocation path, then clarify the validator contract and how it should be selected and called; done requires an agreed scope and corresponding coverage.