Claude Review Bridge — Codex + Gemini
An MCP server that has a second model such as OpenAI Codex or Google Gemini review code that Claude Code just wrote, returning structured feedback inline using a subscription you already hold.
Claude Review Bridge lets Claude Code send an implementation plan, a code diff, or the currently staged git changes to a second model for review, and get back a verdict with specific findings and file and line references, without copying text between separate tools. OpenAI Codex is the default reviewer, reading OAuth tokens created by its own login command so it runs on an existing ChatGPT subscription; Google Gemini is available as an alternative through the Antigravity CLI on a Google AI Pro subscription, and when both are configured the bridge automatically fails over to whichever provider still has usage available.
It installs as an MCP server added to Claude Code with a single command, after which Claude Code gains five new review tools covering plan review, code review, a quick pre-commit sanity check, review status and review history.