What problem does it solve? PR comment threads often become unreadable walls of nested headings and debugging narratives, forcing reviewers to dig through diffs to understand progress. This Skill posts a concise, timeline-style summary comment covering only what changed since the previous summary, with deep links to every referenced spec, doc, or source line. ## Core Features & Use Cases - Delta-scoped summaries: Finds prior summary comments via the <!-- pr-change-summary --> marker and scopes the new comment to changes since that boundary, chaining the thread into a navigable timeline. - Scannable structure: Enforces a visible headline plus 1-2 sentence TL;DR with details folded in a <details> block, bullets over paragraphs, and tables for status matrices. - Deep linking: Pins source links to commit SHAs with line anchors, links spec sections and doc heading anchors, and links the previous summary via #issuecomment-<id>. - Use Case: After pushing a batch of commits implementing OID4VCI credential issuance, ask the assistant to post a changes summary; it finds the last summary, diffs the new commits, and posts a folded comment linking the exact spec sections and source lines touched. ## Quick Start Ask the assistant to post a changes summary comment on the current branch's pull request covering what changed since the last summary.