Can read available items from any number of overlapping logistics networks and player networks (with personal roboports).
Also warns when placing blueprints if certain buildings in the blueprint are missing items.

Subsequent identical warnings from the same held click are hidden, and there is an additional cooldown length configurable in the mod settings.
Warns about missing modules when placing blueprints with modules in or when using Module Inserter, Module Inserter Simplified, and any similar mods.

Warning sound from https://mixkit.co/free-sound-effects/alarm/, with minor edits by xor50.