What problem does it solve? Manually re-checking web pages, release feeds, or listings for changes is repetitive, and naive checks either flood you with duplicates or silently miss failures. This Skill fetches a source, filters for what matters, and remembers what it already reported so you only hear about genuinely new items. ## Core Features & Use Cases - Change Detection with De-duplication: Fetches a URL, extracts candidate items, matches them against your criteria, and suppresses anything already reported using persistent memory. - Honest Failure Handling: Distinguishes a failed fetch from "no news" so a broken source never masquerades as a quiet run. - Forkable Template: Serves as the generic base watcher that specialized watchers (like price-watch) are forked from by customizing item extraction and match rules. - Use Case: Ask the agent to watch a project's releases page for any version above 3.0; on each run it reports only versions you have not been told about before. ## Quick Start Watch https://example.com/releases for any version above 3.0 and only tell me about new ones.