Why we log cluster changes like flight notes

Operators often inherit half-finished stories from chat tools that lose context the moment a shift ends. We treat cluster change logs like concise flight notes: what changed, why it was safe enough to ship, and what still needs watching. The habit sounds bureaucratic until the first midnight page when the prior engineer left a three-line summary with links to manifests and rollback switches. That summary beats reconstructing intent from forty messages. We teach a lightweight template that fits next to Git commits without duplicating them. The third paragraph is about humility: not every note is perfect, but imperfect notes still beat silent clusters that only speak when something breaks.