added anthropic tool support i think

schema/enum.go

@@ -31,6 +31,14 @@ func (e enum) GoogleParameters() *genai.Schema {
 	}
 }
 
+func (e enum) AnthropicInputSchema() map[string]any {
+	return map[string]any{
+		"type":        "string",
+		"description": e.Description(),
+		"enum":        e.values,
+	}
+}
+
 func (e enum) FromAny(val any) (reflect.Value, error) {
 	v := reflect.ValueOf(val)
 	if v.Kind() != reflect.String {