wtf is sdrev?

sdrev is a command line tool that turns a plain Git comparison, like the changes on a branch versus main, into a code review you can browse in your web browser. Instead of just showing you raw lines added and removed, it builds a structured diff of what changed and then asks an AI language model to describe each changed section in plain language, so you get a written explanation sitting right alongside the highlighted code. Everything ends up in one self-contained HTML report you can open and click through. It installs as a single standalone program, so you do not need Node.js or Bun to run it, only Git itself and a short install script that downloads the right binary for macOS or Linux. Once installed, you simply describe what you want compared in plain English, such as comparing the last few changes related to a certain feature, and sdrev works out which commits that refers to using an AI coding assistant session you already have set up, either Codex or Claude Code. You can also skip that step and directly name two Git references to compare. By default sdrev tries to use Codex to figure out what you meant and to write the descriptions, and it falls back to Claude Code if Codex is not available, using a smaller and larger model for the two different steps. You can override which provider and model it uses, or plug in your own OpenAI-compatible or Anthropic API key and model name directly. Reports are saved locally under a hidden folder inside your repository, organized by which two commits were compared, and the viewer remembers things like which files you had already looked at and where you had scrolled to. The project also ships a Codex skill and a Claude Code slash command that call the same underlying tool, and building it yourself requires the Bun runtime.