Loops - Claude Code Blog

The /loop command runs a prompt or slash command on a repeating interval inside your active Claude Code session — polling a deploy, babysitting tests, iterating until something passes. Here's how it works, when to use it, and how it differs from routines.

Claude Code has six ways to extend it — CLAUDE.md, skills, subagents, MCP servers, hooks, and plugins — and they overlap just enough to be confusing. This decision guide explains what each one is, when to reach for it, when not to, and how to combine them.