/advisor

Turns the Advisor tool on or off, which brings in a second model for consultation at key moments in a task.

Accepts opus, sonnet, fable (from v2.1.170), or a full model ID. Without an argument, a picker opens. Requires Claude Code v2.1.98 or newer.

✅ WHEN TO USE IT?

Bring in a stronger model for a second opinion before a risky architecture decision

/advisor opus — get a second opinion before implementing a database migration

Cut costs in a long loop by combining a cheap executor with an advisor consulted only when needed

/advisor sonnet — as advisor for an automation loop otherwise running on haiku

⛔ WHEN NOT TO?

Leaving it on for every trivial small task

each advisory round costs extra tokens/time with no benefit for routine work

Better: open /advisor with no argument and turn it off, re-enable only at real decision points

SOURCES