What it does

Codex++ is an external launcher and management tool for OpenAI’s Codex desktop app. It starts the official application through a Rust-based silent launcher, then uses Chromium DevTools Protocol to inject enhancement scripts at runtime. A separate Tauri+React control panel handles configuration, updates, and troubleshooting. The project explicitly avoids modifying app.asar or dropping DLLs into Codex’s installation directory.

The interesting bit

The “relay injection” mode is the politically delicate feature: it lets users who’ve logged into ChatGPT redirect model requests to third-party API endpoints, then switch back to the official login state. The README is notably heavy with sponsored API resellers—over a dozen affiliate links—suggesting this is a primary use case for a Chinese audience facing access friction.

Key highlights

• External CDP injection keeps the original app untouched; uninstalling Codex++ leaves no residue in Codex’s files
• Unlocks plugin entry points and adds session deletion buttons that the native app hides in API-key mode
• Supports custom user scripts loaded at startup, plus provider switching with local session metadata sync
• Zed editor integration: detects remote SSH context and opens files directly in Zed Remote Development
• “Upstream worktree” creation auto-fetches before branching, reducing stale-HEAD merge conflicts
• Auto-updates via GitHub Releases; Windows gets single-instance launching without console windows, macOS gets architecture-specific DMGs with dock-icon hiding for the silent launcher

Caveats

• The README is Chinese-first; English documentation exists but may lag
• macOS users may hit the unsigned-app “damaged” warning (documented with a screenshot, no notarization workaround mentioned)
• Heavy commercialization: the sponsor table dominates the page, and the relay feature is essentially built to enable API-key reselling

Verdict

Worth a look if you’re using Codex in restricted network environments or want the quality-of-life fixes (deletion buttons, plugin unlocks, Zed integration) without patching the binary. Skip it if you find the affiliate-heavy presentation off-putting or if you need enterprise-grade support guarantees.