An agent the operator starts as the agent account through sudo (hq ADR 0266)
would otherwise share the operator's terminal and could push keystrokes into
their shell after it ends. sudo still runs without a terminal for the mesh's
own tools, so nothing they do changes.
Three modules' tools act through `sudo -n` and nothing declared that the
account may; each machine said so in a hand-set line in /etc/sudoers. The
module owns the package and /etc/sudoers.d/10-mesh-operator (0440), checked
by visudo in its manifest test, and serves sudo_rules, sudo_check and
sudo_drop_ins from a Go bundle. lab stops declaring the sudo package, which
would collide with this module on the node that runs both (hq ADR 0207,
to-be 42 Phase 1).