She follows his lead, goggling at all the shiny buildings so on in a slightly detached sort of way.
She comments offhand that the networks of tunnels below could use some shoring up in a few places.
Nothing urgent. Accumulated wear, soil shift, weaknesses in the stone that could never have been noticed. Nothing's about to collapse but some of it is probably leaking and some of it might collapse in 10 years.
She fought Leviathan and got a sense of its abilities. Maybe she should tour cities and rate their sewers and tunnels for Endbringer resistance (not likely) and collateral wave resistance (less unlikely). She knows earthworks, and she likes building sturdy things.
She could probably go ahead and fix obviously not intentional damage like cracks in pipes. But she's going to be talking to the Sentai Elite about fixing Japan (or parts of it at least) so she can wait a while.
She pushed her influence to as much of Japan as possible at once, so 'a third of Kyushu' is probably a good guess for the maximum range of her power. But that was sheer brute force, for detail work she'd want to either see the target or at least land and put her hands on the earth.
How do tinkers work? It's probably not just 'being more intelligent,' it's focused on technology somehow right?
Instinct, huh. Is it a 'knowing it by heart' sort of way or more like 'para-inspiration'?