Function walking 

pub fn walking(
    bench: &Bench,
    store: Option<&Path>,
    given: Option<&Path>,
    range: &str,
    most: usize,
) -> Result<Walk, Box<dyn Error>>

A whole line of exploration, probed and compared and judged.

The one entry point both a terminal and a request handler use, so neither can drift from the other about what an investigation contains. The bench is handed in and not built here.

It used to take the paths and stand one up of its own, which quietly made this the second place that reads soma-tree.toml — so a name said on the command line reached the journal and not the walk, and a verdict written one moment was invisible the next with nothing saying why.