The advisor feature now enforces that the configured advisor model must be at least as capable as the main model, using a new numeric capability ranking table:
If the advisor ranks below the main model, the session emits a warning and the advisor is not activated for the main model (subagents may still use it). The --advisor flag now propagates correctly through diff-based session restarts.
Evidence
Capability rank table (search for "claude-haiku-4-5" near "claude-fable-5" in the same object), warning message (search for "Advisor will not activate on the main model (advisor is less capable)")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
