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TechDays: AI Fluency

Two Kinds Behind the Slash

Two kinds behind the slash

Section titled “Two kinds behind the slash”

Everything behind the / key in Claude Code is one of two things:

  • Built-in commands: fixed logic shipped with the tool, like /clear, /permissions, /mcp, /config. They manage the session and the machinery around it. You can’t write these.
  • Skills: prompt-based and extensible, from the bundled /debug and /batch to every custom command you will ever write. These are the subject of Part 3.

Open a session and type / with nothing after it. Scroll the list; type a few letters to filter. Entries vary by platform and plan, so your list will not exactly match a colleague’s.