<?php
$agent_name = $product->get_attribute( 'pa_imya-agenta' );

$posts = get_posts(array(
    'numberposts'   => -1,
    'post_type'     => 'comands',
    'meta_query'    => array(
        'relation'  => 'AND',
        array(
            'key'   => 'metka',
            'value' => array($agent_name),
            'compare' => 'IN',
        ),
    ),
));

$products = new WP_Query( array(
   'post_type'      => array('product'),
   'post_status'    => 'publish',
   'posts_per_page' => -1,
   'tax_query'      => array( array(
        'taxonomy'  => 'pa_imya-agenta',
        'field'     => 'name',
        'terms'     =>  array($agent_name),
        'operator'  => 'IN',
    ) )
) );

$slug = $posts[0]->post_name;
$agent_page_link = "https://praid-pro.ru/comands/" . $slug . "/";
$objects_count = count($products->posts);
$objects_count_string = num_decline($objects_count, array("объект", "объекта", "объектов"));

$vars = [
  $agent_page_link,
  $objects_count_string
];

$result = sprintf('<div class="label_spec">Специалист по недвижимости</div><a href="%s" class="object_spec">Объекты специалиста</a></div><a data-w-id="c5da5e96-65e0-9450-40ff-4c3f22b7758c" href="#" class="btn_call_spec w-button">задать вопрос</a></div>', ...$vars);

echo $result;
?>