Why it matters
Google truncates long descriptions and may ignore very short ones in favour of page text. This is a heuristic, not a Google limit.
How to fix it
Summarise the page in one or two sentences of about 50–160 characters.
References
More seo rules
void seo reports 60 rules in this category. What search engines need from the raw response: status codes, titles and descriptions in <head>, self-referencing canonicals, one h1, crawlable links, Open Graph, icons, robots.txt and a sitemap with real dates.
charsetCharacter encoding not declared earlytitle-missingNo single non-empty <title> in <head>title-lengthTitle length outside 10–60 characters, or keyword-stuffedmeta-description-missingNo meta description in <head>metadata-in-bodyCrawler receives <title>/canonical/description inside <body> (Next.js streaming metadata)canonical-missingNo single rel=canonical in <head>canonical-invalidCanonical URL is relative or contains a fragmentcanonical-brokenCanonical points to a URL that returns 4xx/5xx