Charles and Dean behind Stage released a local, open‑source companion, the Stage CLI, letting developers walk through PR changes chapter by chapter before opening a pull request. The tool hooks into any AI coding agent, breaking the current branch’s diff into logical sections and rendering them in a browser.

Unlike traditional IDE diffs that present files in repository order, Stage CLI organizes changes by logical flow, making review faster and less error‑prone. A demo video shows how the agent reads the branch, segments the code, and launches a local UI that mirrors the web experience.

The command‑line interface is lightweight: install via npm, add the skill to your agent with npx, and run a single command to launch the chapter‑based review. Everything stays on the developer’s machine, and the project is released under an MIT license.

By shifting focus from file lists to readable chapters, Stage CLI offers a fresh way to digest local changes, potentially reducing review time and improving code quality for teams that rely on AI assistants.