What is vibe-skill?

vibe-skill is a Claude Code skill that hands off coding work to a separate tool called Mistral Vibe, then reviews the result. Instead of Claude itself reading every file and making every edit, which uses up its context window and costs more per token, the user types a command starting with slash vibe and Claude turns that instruction into a prompt for Vibe. Vibe then does the file reading and editing, running in the background, while Claude only sees a short summary of what happened, typically around five hundred to fifteen hundred tokens no matter how much work Vibe actually did internally. The stated reason for doing this is cost and context savings. Vibe works with Mistral's models by default, which the README says are cheaper than Claude for the same task, though Vibe can also be pointed at other providers such as DeepSeek. After each delegated task, Claude checks the git diff that Vibe produced, looks for syntax errors, and reports back a summary, so the user still gets a review step without doing it by hand. Setup involves cloning the repository and creating symbolic links from it into a tools folder and into Claude Code's skills folder, so that updating later is just a git pull rather than copying files again. There is also an optional auto mode, toggled with slash vibeon and slash vibeoff, that makes Claude delegate any coding request automatically without needing the slash vibe prefix each time. A model picker lets the user override which underlying model Vibe uses for a session without editing its configuration file directly. To use this skill, a person needs the Mistral Vibe command line tool installed and authenticated, Claude Code with skills enabled, some standard Unix command line tools, and a git repository to work in. The project is released under the MIT License.