og-image-generation_skill

Overview

This skill generates dynamic social preview (OG) images for Next.js apps using Next.js file conventions and the next/og library. It produces server-rendered JSX images that can be cached at build time for fast, consistent social previews. The approach is production-ready and integrates with existing Next.js routes and build pipelines.

How this skill works

You define image JSX components that follow Next.js routing and file conventions, then use the next/og library to render those components server-side into image bytes. Images are generated on the server and can be cached at build time so the same URL returns a pre-rendered image for social cards and link previews. The skill focuses on repeatable patterns and recipes to integrate this into a full-stack app reliably.

When to use it

• When you need consistent, brand-aligned social preview images for links and content pages.
• When you want server-side rendered images that avoid client-side rendering delays.
• When you need images cached at build time for better performance and deterministic outputs.
• When using Next.js and you prefer file-convention routing for OG endpoints.
• When you want to generate dynamic images (title, author, date) per page or post.

Best practices

• Keep image JSX components simple and deterministic to allow effective build-time caching.
• Use fonts and assets that are accessible to the server render environment to avoid missing resources.
• Render only essential content (title, logo, author) to keep image size and render time small.
• Version or fingerprint static assets so cached images invalidate correctly on updates.
• Test generated images across social platforms to confirm correct metadata and sizing.

Example use cases

• Generating per-post social preview images that include post title, author, and category.
• Creating marketing campaign images that are produced from a template and stamped with campaign metadata.
• Auto-generating event or webinar preview images with date, speaker, and logo for calendar links.
• Producing user profile preview cards for social sharing with avatars and user handle.