Reviews a pull request or the current branch before merge ("review my PR", "review this branch", "is this ready to merge?") against a catalog of review concerns (a built-in starter set plus the project's own, mined from its past reviews) in two agent stages, map-and-review per slice of the diff and a separate validation, and reports only validated bugs, issues, and nits, each quoting its added line, with an advisory ship verdict. Also builds or refreshes the project's concern catalog from past review comments. Unlike a general code review, it checks the project's own recurring concerns and prints how much of the catalog it covered. Use when asked to review, audit, or chec…
