Failed to validate tool : Error: tool parameters array type must have items.

[friday-deployer]

Describe the bug
I have created a simple mysql db interaction tool and it have three parameters. but vscode throw the error when try to use the tool.

error:

Failed to validate tool mcp_php-mysql-mcp_execute_select_query: Error: tool parameters array type must have items. Please open a Github issue for the MCP server or extension which provides this tool

To Reproduce
Steps to reproduce the behavior:

1. setup the initial template
2. create the initial class
3. add this method to class

<?php

  /**
     * Execute a custom SELECT query on the database.
     * 
     * @param string $query The string SELECT query to execute (Required, MUST be a SELECT statement, start from SELECT)
     * @param array $params Optional parameters for prepared statement (default: [])
     * @param int $limit Optional limit on number of rows to return (default: 100)
     * @return array Query results or error message
     */
    #[McpTool(name: 'execute_select_query')]
    public function executeSelectQuery(string $query, array $params = [], int $limit = 100): array
    {
        
        

        if(!is_array($params)) {
            return [
                'error' => 'Params must be an array.'
            ];
        }
        
        try {
            // Validate that query is a SELECT statement
            $trimmedQuery = trim($query);
            if (!preg_match('/^SELECT\s+/i', $trimmedQuery)) {
                $errorMsg = 'Only SELECT queries are allowed. Query must start with SELECT.';
                $this->logError('execute_select_query', $errorMsg, ['query' => $query]);
                return [
                    'error' => $errorMsg
                ];
            }
            
            // Check for dangerous keywords that could be used for data modification
            $dangerousPatterns = [
                '/\bINTO\s+OUTFILE\b/i',
                '/\bINTO\s+DUMPFILE\b/i',
                '/\bLOAD_FILE\b/i',
                '/\bINSERT\b/i',
                '/\bUPDATE\b/i',
                '/\bDELETE\b/i',
                '/\bDROP\b/i',
                '/\bCREATE\b/i',
                '/\bALTER\b/i',
                '/\bTRUNCATE\b/i',
                '/\bREPLACE\b/i',
                '/\bEXEC\b/i',
                '/\bEXECUTE\b/i'
            ];
            
            foreach ($dangerousPatterns as $pattern) {
                if (preg_match($pattern, $trimmedQuery)) {
                    $errorMsg = 'Query contains forbidden keywords. Only safe SELECT queries are allowed.';
                    $this->logError('execute_select_query', $errorMsg, ['query' => $query]);
                    return [
                        'error' => $errorMsg
                    ];
                }
            }
            
            // Apply limit if not already present in query
            if (!preg_match('/\bLIMIT\s+\d+/i', $trimmedQuery)) {
                $trimmedQuery = rtrim($trimmedQuery, ';') . " LIMIT {$limit}";
            }
            
            // Execute query
            if (!empty($params)) {
                $stmt = $this->connection->prepare($trimmedQuery);
                $stmt->execute($params);
            } else {
                $stmt = $this->connection->query($trimmedQuery);
            }
            
            $results = $stmt->fetchAll();
            
            return [
                'success' => true,
                'rows' => $results,
                'count' => count($results),
            ];
        } catch (PDOException $e) {
            $errorMsg = 'Query execution failed: ' . $e->getMessage();
            
            return [
                'error' => $errorMsg,
                'query' => $query
            ];
        }
    }

?>

4. add mcp server to vscode and start server
5. use the tool in agent mode

Expected behavior
validated method that usable by AI agent

Additional context
If i use single parameter it worked.