Query the GitLab Knowledge Graph (Orbit) via `glab orbit remote` CLI subcommands or run a local copy with `glab orbit local`. Use for code-structure questions (who calls this function, where is this symbol defined), cross-project dependency and blast-radius analysis, merge-request and contributor queries that require relationship traversal or aggregation, repository map / repo-map generation, and any question spanning relationships, cross-entity joins, or multi-entity aggregation across GitLab entities (projects, users, MRs, issues, pipelines, files, definitions, vulnerabilities). Do not use for single-entity GitLab lookups or write operations that `glab` handles directly (e.g. `glab mr view`, `glab mr create`); prefer Orbit when the question spans relationships, cross-entity joins, or multi-entity aggregation.