Produces a concrete engineering career ladder — per-level descriptions covering scope, technical expectations, collaboration, leadership, and observable example behaviours, plus the distinguishing behaviours between adjacent levels. Use when the user says "draft a career ladder", "define our engineering levels", "our level expectations are too vague", or pastes org context and a list of levels. Use this for the org-wide framework that defines levels; use promotion-case to argue one person fits a level, and staff-engineer-scope-doc to define a single staff role's concrete remit.
