PHPStan level 9

phpstan.neon.dist

@@ -1,5 +1,5 @@
 parameters:
-	level: 8
+	level: 9
 	paths:
 		- mcp.php
 		- src/

src/MCP/Servers/WordPress/Tools/RestApi.php

@@ -12,6 +12,7 @@ use WP_REST_Response;
  * REST API tools class.
  *
  * @phpstan-import-type ToolDefinition from Server
+ * @phpstan-type ArgumentSchema array{description?: string, type?: string, required?: bool}
  */
 readonly class RestApi {
 	private LoggerInterface $logger;
@@ -156,7 +157,8 @@ readonly class RestApi {
 			if ( array_key_exists( $match, $params ) ) {
 				$route = (string) preg_replace(
 					'/(\(\?P<' . $match . '>.*?\))/',
-					$params[ $match ],
+					// @phpstan-ignore cast.string
+					(string) $params[ $match ],
 					$route,
 					1
 				);
@@ -206,6 +208,7 @@ readonly class RestApi {
 	 * @throws \Exception
 	 *
 	 * @param array<string, mixed> $args REST API route arguments.
+	 * @phpstan-param array<string, ArgumentSchema> $args REST API route arguments.
 	 * @return array<string, mixed> Normalized schema.
 	 */
 	private function args_to_schema( array $args = [] ): array {
@@ -269,7 +272,8 @@ readonly class RestApi {
 		}
 
 		if ( ! \is_array( $type ) ) {
-			throw new \Exception( 'Invalid type: ' . $type );
+			// @phpstan-ignore binaryOp.invalid
+			throw new \Exception( 'Invalid type: ' . $type);
 		}
 
 		// Find valid values in array.