Multi-device git sync ritual for repos worked on from several machines, sometimes concurrently. Fetches and diffs origin before work starts, reconciles inbound commits from other devices, re-fetches immediately before every push, and verifies branch parity afterward. Divergence is a stop-and-ask condition - never force-push, rebase shared history, or hard reset. Commits default to ONE per session and verify the staged set first, because `git commit` writes the whole index rather than the paths just added. MUST be used for ANY commit, push, or pull intent in such a repo, however casually phrased ("ok push this up", "ship it", "just commit it all") - the ritual is the point…