Answer Codex CLI from your iPhone

When Codex CLI stops to ask you something, Hwip sends the question to your iPhone and types your answer back into the same tmux session.

What reaches your phone

• Questions. A rule in ~/.codex/AGENTS.md has Codex ask through the hwip_ask tool: up to four buttons and a text field.
• A finished turn. A "Task done" push with the project and branch.
• The live timeline. Prompts, tool calls and replies, read from Codex's own session log.
• Your prompts. Type a prompt on the phone, and it lands in the session as if you typed it at the keyboard.

Set it up

1. Install Hwip on your iPhone and sign in.
2. On your Mac: npm install -g @hwip/cli && hwip install. For Codex this registers the Hwip MCP server in ~/.codex/config.toml and adds prompt and stop hooks.
3. Start Codex through Hwip: hwip codex. It runs in a normal tmux session named hwip-<project>, and arguments pass through: hwip codex "fix the failing test".

What a question carries

The session's git diff against HEAD and its last 60 terminal lines. Secret-looking text is masked first, best effort. Everything is sealed on your Mac with AES-256-GCM before it is sent.

What the server sees →

What it doesn't do

• Codex's own approval prompts stay on the computer. Approve those at the keyboard.
• tmux is required. On Windows, that means WSL.