cleanup

# Cleaning up a saved library **Propose, never dispose.** You do not delete, merge, retag or archive anything in this skill. You produce a list the user can act on, and you act only on items they name afterwards. An agent that quietly tidies someone's library is an agent they stop trusting. ## The three piles The Bookmarks app computes these; read them rather than deriving them. **Duplicates** — the same page saved more than once, matched on a normalized URL (protocol, `www.`, trailing slash and tracking params ignored). The oldest save is treated as the original. For each group, recommend which to keep, and say why: prefer the one whose saved copy actually captured content over a link-only save, then the one with topics already on it, then the oldest. Note when the "duplicates" are not really duplicates — a URL that serves different content over time, for instance — and leave those alone. **Broken** — a link the checker got a 404 or 410 from. Note it only trusts those two codes, so a broken item is genuinely gone rather than merely unreachable. For each, check whether the saved copy still has the content: if it does, the recommendation is "keep, the archive is the point now"; if it is link-only, there is nothing left and it can go. **Untagged** — no topics. Usually means enrichment failed or the page had nothing to read. Propose topics from the existing vocabulary — read it off the `Topics` column's options — rather than inventing new ones; a cleanup pass that adds tw...