codex-plusplus

Codex++ is a tweak system for OpenAI's Codex desktop app. Inject custom features, fix UI bugs, and run a tweak manager without rebuilding the app. It's userscripts for your AI coding assistant. MIT licensed, available on macOS, Linux, and Windows.

Install via Bun, a bash script, or PowerShell. The installer patches your local Codex app, backs it up, manages signatures, and installs a watcher that re-applies tweaks after Codex updates. Hot-reload means save a tweak file and it's live. Two default tweaks ship: custom keyboard shortcuts and UI improvements.

Pick this if you use Codex daily and have a list of "I wish it just did X" complaints. Solo: free, the watcher handles updates. Small teams: works fine but each user installs separately. Large orgs running managed Codex deployments: don't, this voids code signatures and your security team will not love it.

The catch: it's unofficial. Modifying Codex.app voids code signatures. Updates from the official app overwrite patches; the watcher re-applies them, but a structural change by OpenAI breaks your tweaks until the maintainer catches up. This is a power-user toy, not production tooling.