What problem does it solve? Raw git diffs show what changed but not why it matters, forcing reviewers to interpret every hunk themselves. This Skill annotates each meaningful hunk with reviewer notes and publishes the result as a shareable claude.ai artifact page, while scrubbing for secrets before anything leaves the local environment. ## Core Features & Use Cases - Annotated diff walkthroughs: Writes a note against each meaningful hunk and renders a self-contained page with a sticky file sidebar and severity labels. - Blocking security gate: Runs a secret-scanning scrub on the diff before publishing and rescans the rendered page, with a BLOCKED verdict acting as a hard stop. - Flexible diff sources: Resolves branch diffs by default, commit ranges like abc123..def456, or PR references such as #42, degrading gracefully to a branch diff when PR mode fails. - Durable publishing workflow: Saves a local copy under .claude/artifacts/, reuses recorded URLs so pages update in place, and verifies the published page actually rendered. - Use Case: Before requesting review on a feature branch, publish an annotated diff walkthrough so reviewers see per-hunk context and severity labels instead of a raw diff. ## Quick Start Ask the assistant to publish an annotated diff walkthrough of the current branch to a claude.ai artifact.