Membership lesson · Build Your Jarvis · Module 7 — Machine operator

How's my machine? — health checks

The first rung of the operator ladder. Two new safe tools land in core/operator/ — machine-health (disk space per drive, memory in use, processor load, uptime, battery where there is one) and updates-pending (a read-only look at what's waiting) — and the model folds the numbers into an honest plain-English report in the member's voice. The design point of the lesson — health is built on the app's own system APIs, not by running commands, so read-only is a property of the build rather than a promise, and running commands stays a single fully-protected entrance two lessons away. The operator switch lands here too, with the very first operator tool — one control that stands every machine tool down at once, because the off switch is the deed of ownership, not an emergency feature. Honest-report rule throughout — a check that cannot run says "couldn't check", never guesses.

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