This describes httpjail, a new Rust sandbox proxy tool: https://github.com/coder/httpjail https://github.com/coder/httpjail It works for any process, not just

This describes httpjail, a new Rust sandbox proxy tool: https://github.com/coder/httpjail https://github.com/coder/httpjail It works for any process, not just Claude Code. I got it working with Codex CLI like this: httpjail --js "r.host === 'chatgpt.com'" -- codex After installing it using Cargo (and Homebrew): brew upgrade rust cargo install httpjail I wrote more notes about it here: https://simonwillison.net/2025/Sep/19/httpjail/ https://simonwillison.net/2025/Sep/19/httpjail/