Overview
Detects changes to a webpage and explains them in plain language, in one call. Give it a URL (plus optional previous_hash or previous_text baseline and CSS selector scope) and get back the changed flag, content hash, added/removed line diff, and an LLM summary of what actually changed, ready to drop into an alert or agent decision. Ideal for competitor monitoring, policy-change tracking, status-page watching, changelog digests. Composite: one call runs webpage-diff first, then summarize-text ove