Fired BEFORE the composer opens the skill-command dropdown from its Skills button.
Cancel to block it, for example a host that gates skills by entitlement and would rather show its
own explanation than an empty list, or one that surfaces skills elsewhere entirely. Canceling
suppresses the trigger; the composer does not open, and AfterSkillsOpened is not emitted.
Fired BEFORE the composer opens the skill-command dropdown from its Skills button.
Cancel to block it, for example a host that gates skills by entitlement and would rather show its own explanation than an empty list, or one that surfaces skills elsewhere entirely. Canceling suppresses the trigger; the composer does not open, and
AfterSkillsOpenedis not emitted.