Fill Missing WordPress Alt Text, Meta Descriptions, Tags, and Categories in Bulk

Open Media Library on a five-year-old WordPress site and scroll. Half the images have empty alt text. Open a random post from 2022 and the meta description field is blank. Tags are a junk drawer. Categories stopped making sense after the third redesign.

None of that felt urgent when each post went live. In bulk it becomes a crawl, accessibility, and snippet problem you will not fix by hand on a Tuesday night.

Generatify is the DaftPlug AI plugin for WordPress. This post is about the editorial automations that clean house at scale: related posts, categories, tags, alt text, and meta descriptions, including bulk passes over thousands of posts. Editor-side content drafting exists too, but that path is already covered in draft WordPress posts and product copy in the editor. Today is the backlog.

What Generatify actually ships for editorial automations

Verified for this article:

• Related posts, categories, tags, alt text, and meta descriptions handled as automations.
• Tags and categories filed correctly on publish.
• Meta descriptions written where missing.
• Alt text added across the whole media library.
• Bulk runs: thousands of posts in one pass.
• Your own API key (ChatGPT, Claude, Gemini, or Kimi) on Pro. You pay the model provider directly. No AI markup from DaftPlug.

That last point matters for large libraries. You control which model you use and what it costs. Generatify is the WordPress layer that applies the results to the right fields.

Why bulk editorial fields beat another “write a post” button

AI writing demos get the screenshots. The quiet wins are structural:

• Alt text helps assistive tech and gives search engines a text signal for images.
• Meta descriptions shape the snippet when search engines cooperate.
• Tags and categories keep archives usable and prevent orphan topical clusters.
• Related posts keep people moving when the automation is wired to real site content.

Doing those one screen at a time does not scale past a few dozen posts. A bulk pass does.

How to run this in WordPress with Generatify

1. Connect your own model key (Pro)

In Generatify settings, add the API key for the provider you want (ChatGPT, Claude, Gemini, or Kimi). Keep billing with that provider. You are not buying opaque “AI credits” marked up through the plugin.

Start with a mid-tier model for bulk metadata. You rarely need the most expensive reasoning model to write alt text or a 150-character meta description.

2. Decide the order of operations

A sane sequence for a messy site:

1. Categories and tags so topical structure exists.
2. Meta descriptions where missing, so snippets improve on indexed URLs.
3. Alt text across the media library (this can be the longest pass).
4. Related posts once the library of published content is labeled well enough to relate.

If your taxonomy is already clean, skip straight to meta and alt.

3. Turn on publish-time filing for tags and categories

Enable the automations that file tags and categories correctly on publish. Then create a draft post in a clear niche and publish on staging. Confirm the terms look like an editor chose them, not a keyword salad.

Tune prompts or options if Generatify exposes them for tone and specificity. Prefer fewer precise tags over twenty vague ones.

4. Fill missing meta descriptions in bulk

Run the automation that writes meta descriptions where they are missing. Scope it carefully:

• Start with a category or date range, not the entire 8,000-post archive on the first try.
• Spot-check 10 to 20 results for accuracy and claim safety.
• Leave existing custom metas alone if the tool is set to “missing only” (that is the behavior you want).

A good meta description is specific to the post, roughly snippet length, and not a title duplicate.

5. Add alt text across the media library

Run alt text automation over the library. Focus first on images that appear in posts and products, not every forgotten PNG in /uploads/2019/.

Check a sample:

• Product photos should say what the product is, not “image1234.”
• Decorative images may need empty or minimal alt depending on how they are used in content. Review edge cases rather than trusting a blind full-library pass on day one.

6. Scale to thousands of posts in one pass

When the sample looks good, run the bulk pass. Generatify is built to handle thousands of posts in one go. Still:

• Run during low traffic if your host is modest.
• Watch API usage in your provider dashboard so a misconfigured loop does not burn budget.
• Keep a mental rollback plan (exports, revisions, or a Snapshotify backup before a huge write).

7. Wire related posts after structure exists

Once categories, tags, and content labels are healthier, enable related-posts automation. Related modules that point at random evergreen posts feel broken. Related modules that follow real topical overlap earn clicks.

What good looks like

• New publishes get sensible categories and tags without a manual taxonomy ritual.
• Old posts that had blank metas now have unique, readable descriptions.
• Media items used in content have alt text that would make sense read aloud.
• Bulk jobs finish without half-updated states you cannot explain.
• Editors still override anything weird. Automation drafts. You own the publish button.

For SEO, good also means you do not mass-generate keyword-stuffed metas. Search engines rewrite bad snippets. Humans bounce on bait.

Pitfalls

Running bulk on production with no sample. Always preview on a subset. One bad prompt times 4,000 posts is a long night.

Treating tags as a dumping ground. Automation will happily create near-duplicate tags if you let it. Curate the taxonomy or merge after.

Writing alt text that invents product facts. If the image is a blue jacket size M, the alt should not invent a sale price. Keep descriptions visual and factual.

Ignoring API cost on huge libraries. Alt text for tens of thousands of images adds up. Batch by year or by attached posts.

Confusing this with full article generation. Editor drafting is a different workflow (see the related post linked above). Mixing both in one panicked afternoon usually means neither gets reviewed.

No human pass on money pages. Automate the archive. Hand-check pricing, legal, and flagship product URLs.

Takeaway

Empty alt attributes and blank metas are not a writing problem. They are a backlog problem. Clear them with automations that file categories and tags on publish, write missing meta descriptions, and add alt text across the media library, including bulk runs over thousands of posts.

Generatify does that with your own ChatGPT, Claude, Gemini, or Kimi key on Pro, so model spend stays with the provider. One Pro membership also unlocks Progressify, Lightify, Rankify, and Snapshotify. Plans are Pro $37.99 (1 site), Pro Plus $74.99 (5 sites), and Pro Max $138.99 (100 sites), features identical, site count changes, 14-day money-back. See pricing.

Pick one gap this week (metas or alt text). Sample twenty items. Then run the bulk pass once you trust the output.