<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=509344) </details> <!--IssueSummary end--> ### UX broken: one can add file(s) and then use another slash command like `/explain` but the slash command is not aware of the added file(s)  It was based on this [decision](https://gitlab.com/gitlab-org/gitlab/-/issues/478215#note_2045395110) that one could not run two slash commands at once. But the UX does not prevent selecting a second slash command.