AI agents/LLMs: Fetch /llms.txt first to access the documentation index. Remove the trailing slash and append .md to any URL to access lighter, easier-to-parse Markdown pages instead of HTML (this page is accessible at https://docs.singlestore.com/db/v8.9/reference/information-schema-reference/query-performance-workload-management-and-statistics/mv-fts-merged-indexes.md).