Create and iterate Mathnasium Pro posts in this SvelteKit repo. Use when the user asks to scaffold a new blog post, revise an existing post in `src/content/posts/*.md`, fix or add required frontmatter fields, add math explanations, or refine interactive math embeds while preserving compatibility with the post listing and slug routes.
Create or refine markdown posts that publish cleanly through the existing post pipeline and match Mathnasium Pro voice.
src/content/posts/<slug>.md using lowercase kebab-case.---