dir_only_contains

Every direct-child file of a directory matching select: must match at least one glob in allow:. Catches stray test data in src/.

- id: src-only-rs
  kind: dir_only_contains
  select: "src/*"
  allow: ["*.rs", "README.md"]
  level: error

Options

Option	Type	Required	Default	Description
allow	string or list of string	yes		Basename glob(s) accepted as direct children. Anything else is a violation.
select	string	yes		Glob selecting the directories to enumerate.

Plus the common level, id, and when fields. This rule analyses the whole repository, so it takes no paths. This table is generated from the JSON Schema; option types and defaults are authoritative.