One of the things I've been using the most since I started with Claude Code is slash commands. And one I think every dev should have is /commit . It cleaned up a habit a lot of devs share, even the experienced ones. /commit makes the bar explicit, and the whole team writes commits the same way now. I always cared about commit messages. Even devs who care end up with a "fixes" or a generic "update" slipping into the repo on a tired Friday or in the middle of a giant refactor. That's how a repo ends up with a layer of noise nobody can decode three months later. What is a slash command Slash commands aren't unique to Claude Code. OpenCode, Codex CLI, Aider, and Continue all let you wire up your own commands somehow. The format and the trigger differ, but the idea is the same: a short keystroke runs a longer prompt you wrote once. I'll show this with Claude Code, since it's what I use day to day. The setup translates well enough to the others. In Claude Code, a slash command is just a markdown file.…