How can I get the meta description to show in the head of the page?

I was about to create a same question. Let me elaborate.

To create proper meta tags, microformats – I’m using excellent Add Meta Tags plugin. It doesn’t work well with AnsPress though:

As you can see, it thinks current page link is just dima.stefantsov.com/qa/ (really bad for SEO! equally bad for sharing questions in social networks)

Then it thinks description is [anspress] shortcode, which is content of base page. Here is a piece of code AMT uses to get description:

elseif ( is_singular() ) {

$content_desc = amt_get_content_description($post);
        if ( !empty($content_desc) ) {
            $metadata_arr[] = '<meta property="og:description" content="' . esc_attr( amt_process_paged( $content_desc ) ) . '" />';
        }

function amt_get_content_description( $post, $auto=true ) {
    if ( is_singular() || amt_is_static_front_page() || amt_is_static_home() ) {    // TODO: check if this check is needed at all!

        $desc_fld_content = amt_get_post_meta_description( $post->ID );

        if ( !empty($desc_fld_content) ) {
            // If there is a custom field, use it
            $content_description = $desc_fld_content;
        } else {
            // Else, use the post's excerpt. Valid for Pages too.
            if ($auto) {
                // The generated excerpt should already be sanitized.
                $content_description = amt_get_the_excerpt( $post );

        // When the post excerpt has been set explicitly, then it has priority.
        $amt_excerpt = sanitize_text_field( amt_sanitize_description( $post->post_excerpt ) );

Long story short, it tries all the way down to “read post content” to find proper data. But data is not there, since at all times wordpress thinks current page is /qa/ base page.

I’ve skimmed through this QA forum and found a lot of problems people had with <title> previously. That has been fixed afaik, but current issue looks like it’s of same origin. Internally, Questions are custom posts in wordpress (something like that). If it would be possible to somehow present real underlying item to wordpress when displaying page, a whole lot of problems, with a title, with meta tags, urls, and I’m sure with a lot more other things would be automatically solved. Is what I’m saying even possible?

This is really important for me, I’m planning to run from my current Q&A system for exactly this reason: if I want something there, I have to write it myself. Like microformats markup. But when we speak of WordPress, there are great plugins for everything like Add Meta Tags, they do it all automatically, magic!
It would not be much use, though, if AnsPress is functioning in a non-default way and plugins can’t work with it.