Sonnet and Haiku reviewed Bing and IndexNow submission code and wrote sitemaps. A retired endpoint and a monthly quota slipped past both; sitemaps were fine.
There are three ways to tell a search engine about pages: call the Bing Webmaster API with a batch of addresses, send one IndexNow request that the receiving engine shares with the others, or publish a sitemap, name it in robots.txt and wait for crawlers. We gave two AI models both kinds of work, reviewing submission code and writing sitemap files. For the sitemap they already do the job well. For the submission code they miss what changed recently or needs a little arithmetic: Bing switched off the XML and SOAP versions of its API on 31 August 2026, its quota has a daily and a monthly figure, and an error can hide behind a success status.
Read the full report on AISkills402: https://aiskills402.com/blog/indexnow-bing-sitemaps-what-models-miss?utm_source=devto&utm_medium=social
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