Function gather_checks 

pub fn gather_checks(
    stage_filter: Option<Stage>,
    paths: &[String],
) -> Vec<CheckListing>

Every check that would be considered for stage_filter (or both stages, when None), evaluated against paths.

Reads hook.skip and amont.severity.* from the current repo’s git config, same as the original list_checks did — this is why it is not unit-tested in isolation; see hooks/pull_rebase.rs’s own split between pure helpers (unit-tested) and config-dependent behaviour (integration tested) for the precedent.