what is teleporter fr?

Teleporter is a command line tool that lets someone move a conversation they were having with one AI coding assistant into a different one, carrying the context along instead of starting over. It works between three specific tools: Codex, Grok, and Claude Code. It reads the most recent messages from a conversation in the tool you started in, packages that history up to a size limit that depends on the target AI model, and then opens the new tool with that packaged conversation ready to go. You install it using Rust's package manager with a single command, and it needs whichever target assistant you plan to switch to, Codex, Grok, or Claude, already installed and available on your computer. Using it involves a short guided menu in the terminal where you choose which tool the conversation is coming from, which conversation in your current project folder to use, which tool and model you want to send it to, and how much reasoning effort that model should use. There are two ways the handoff can happen. By default, the target tool opens with the packaged conversation already typed in as the first message, ready to send. Alternatively, a softer mode copies the package to your clipboard and opens the target tool empty, so you can paste it in yourself and review before sending. The tool also supports direct one line commands for people who prefer typing a specific instruction rather than navigating the menu, such as sending your last Codex conversation straight to Grok with a chosen model. The README lists the specific models and effort levels supported for each of the three target tools, since options differ between them. It is released under the MIT license.