Gate priority bindings that would otherwise steal Input keystrokes.
/ is enabled only when the plugin filter is visible and not focused,
so it remains typeable in the filter and Add Marketplace source field,
and cannot steal focus while the filter is hidden.
Left/right release to a focused Input once it has at least one character,
so caret movement works while empty-field arrows keep switching tabs.
Textual action name being considered for dispatch.
Parameters associated with the action.
