/plan

Switches directly from the prompt into Plan mode.

With an optional description, Plan mode starts immediately with that task, e.g. '/plan fix the auth bug'.

✅ WHEN TO USE IT?

Start a task directly in plan mode with a description

/plan fix the auth bug

Switch to plan mode from a running prompt

/plan

⛔ WHEN NOT TO?

Trivial one-step change

/plan switches mode specifically for a planning phase - for a clear, small change that's an unnecessary detour.

Better: just ask normally, without /plan

Already mid-implementation with a plan in place

/plan switches into plan mode again instead of continuing implementation.

Better: just keep working normally, without switching mode

SOURCES