Command suggestions appear for commands not available in installed version

Description

Claude Code's autocomplete/suggestion engine suggested the /btw command before it was available in my installed version. When I tried to use it, it showed up in yellow (unrecognized). The next day after an update, it worked fine.

Problem

If the suggestion engine is surfacing commands that don't exist yet in the user's installed version, that's confusing. You try the suggestion, it fails, and you lose trust in the tool. The suggestion engine shouldn't be ahead of what's actually available.

Expected behavior

Only suggest commands that are functional in the currently installed version.