What problem does it solve? Reviewing a large diff or understanding an unfamiliar feature means piecing together scattered files, commit messages, and plans by hand. This Skill turns a diff, branch, PR, or existing feature into a guided story — what changed, why, and how the pieces connect — with real code attached automatically and every touched file accounted for. ## Core Features & Use Cases - Narrative timeline generation: Groups changed files into ordered chapters (data → logic → integration → UI → tests) with plain-language explanations of the why behind each change. - Automatic code attachment: Real diffs (or current file content in feature-tour mode) are captured verbatim and rendered per chapter — never hand-transcribed — with optional focus ranges to highlight key lines. - Plan alignment and completeness checks: Compares the change against any plan or handoff on file, flags deviations and risks, and guarantees every touched file appears in the walkthrough via an automated coverage sweep. - Use Case: Before approving a teammate's 14-file PR, run the walkthrough to get a chat summary plus a published HTML timeline showing each chapter's narrative alongside its real diff, with a coverage badge confirming no file was hidden. ## Quick Start Ask the assistant to walk you through the current branch's diff or a specific PR, for example: walk me through PR 123.
