Code Review

Code Review, part of Plannotator, is a local code review tool for working directly with diffs. It supports review of git, jj, and Perforce changes, as well as local diffs, commits, branches, worktrees, and GitHub or GitLab pull requests and merge requests. The core workflow is manual, with an optional AI layer that answers to the reviewer.

Its viewer lets users annotate lines, tokens, or whole files, then send those notes into an agent session as markdown anchored to exact files and lines. The same interface can be used to leave comments, concerns, or suggested edits, and it supports Conventional Comments labels. Drafts auto-save and survive a crashed session. For larger reviews, it combines committed, uncommitted, and untracked changes in one view, grouped by status, and allows staging or unstaging files during review. It also includes a commits panel for moving through a branch one commit at a time, with full commit messages and anchored feedback. When reviewing GitHub PRs or GitLab MRs, it can show the description, checks, and discussion in one overview, filter bot and outdated comments, narrow by author, and annotate the PR description and comments themselves.

The optional AI features include asking questions about selected lines, having an agent reorganize a changeset into chapters, and running review agents that return findings as inline diff comments with severity, reasoning, and file and line anchors. It can use Claude or Codex natively, or work through Cursor, OpenCode, Pi, and GitHub Copilot CLI when those tools are on the PATH. A local API also lets another agent, CI system, linter, or script post findings, markers, or notes directly onto the diff.

Plannotator says the tool is free, licensed under MIT and Apache-2.0, and runs entirely on the user’s machine.