Use LazyCodex when Codex needs a repeatable operating loop for a complex codebase rather than ad hoc chat instructions. The operator installs the package, runs the doctor check, invokes `$init-deep` to generate project memory, uses `$ulw-plan` for decision-complete plans, `$start-work` for durable checklist execution, and `$ulw-loop` when the task must continue until evidence verifies completion. The agent can also select installed roles such as explorer, librarian, planner, reviewer, or specialist skills for focused work. This workflow gives Codex concrete commands to initialize, plan, execute, review, and verify work. The boundary is Codex-specific workflow packaging around skills, hooks, roles, diagnostics, and completion checks; it is not a generic coding-agent product listing.