The CLAUDE.md approach for enforcing standards is solid. One thing we ran into with parallel agent workflows: the quality gates are only as good as what you catch before merge, and across multiple worktrees it's easy for one branch to quietly introduce a dependency issue or a secrets-in-code pattern while you're reviewing another. We built LucidShark partly for this — it runs linting, SAST, dependency checks, and type checking locally before anything hits CI, so the per-branch review overhead stays manageable. Works well as the "pre-merge step" in a worktree-heavy workflow.