Review a Large Cross-Stack Feature Branch

Problem/Feature Description

Your team has just shipped a major sprint that touched both the backend API layer and the React frontend. The branch has accumulated changes across roughly 50 files — new API routes, updated React pages, revised database migrations, and refactored shared utilities. A senior engineer wants a Codex CLI review before the PR is opened, but experience has shown that throwing the entire diff at Codex at once produces shallow, low-quality output.

Your task is to script the review process so that the diff is reviewed in logical slices rather than all at once, making each Codex invocation focused enough to produce useful findings.

Output Specification

Write a shell script named review.sh that performs the review in multiple passes. The script should:

1. Review the backend slice separately from the frontend slice.
2. Capture the output of each pass to separate files so findings can be compared.
3. Include comments explaining the rationale for splitting the review.

Assume:

• The branch is named feature/sprint-42 and the base is main.
• The Codex CLI is already installed and authenticated.
• The .claude/skills/codex-review/resources/PROMPT.md file is present in the current working directory.