What problem does it solve? Keeping a forked or derived configuration repository in sync with its upstream source is tedious and risky: blindly copying changes can overwrite protected local customizations or pull in stack-specific content that does not apply. This Skill monitors the upstream remote, computes the delta since the last reviewed commit, and classifies every change into transfer, manual review, or ignore buckets so nothing is copied silently. ## Core Features & Use Cases - Delta analysis: Fetches the upstream branch, diffs it against the last reviewed SHA stored in a ledger, and produces a dated audit report with ID-tagged items. - Three-basket classification: Sorts changed paths into "transfer" (stack-agnostic mechanics like hooks and tools), "manual review" (stack-flavored cores and config files), and "ignore" (upstream author's projects and audit reports). - Confirmed apply and dismiss: Transfers approved items via git checkout only on explicit confirmation, records every decision in a persistent ledger, and never touches protected blocks. - Use Case: A maintainer of a Claude Code configuration repository wants to adopt improvements from the original upstream repo without inheriting the author's project-specific files; the Skill reports what changed, recommends what to port, and applies only confirmed items. ## Quick Start Ask the agent to check the upstream for new changes and show what should be transferred, then confirm specific item IDs to apply.
