Use when working with Linear issues (ART-XX, issue identifiers), tracking work items, creating session notes, managing project context, or when user mentions Linear, projects, sprints, cycles, or issue tracking. Triggers on: "work on ART-", "linear", "session note", "track this", issue identifiers, project names. Commands: /linear-load, /linear-track, /linear-save, /linear-focus, /linear-verify.