$ cue help vet
The vet command validates CUE and other data files.
The command is silent when it succeeds; otherwise it reports any errors found.

By default, vet ensures that the result of validation is concrete
by reporting an error if any resulting regular fields have non-concrete values.
Use -c=false to not require concreteness, or -c to show these error messages.

vet can also validate non-CUE files in these file formats:

  Format       Extensions
	JSON       .json .jsonl .ndjson
	YAML       .yaml .yml
	TOML       .toml
	TEXT       .txt  (validate a single string value)

Data files with multiple values, such as YAML with --- document separators,
are validated one object at a time. Use --list to validate them as a list.

By default, each file is checked against the root of the loaded CUE.
Use the -d flag to select a schema at a particular expression instead.

Examples:

  # Check that a collection of CUE packages has no errors.
  cue vet -c=false ./...

  # Check against a schema at the root of a CUE file:
  cue vet -c foo.cue foo.yaml

  # Check against a schema from a registry:
  cue vet -c -d '#Workflow' cue.dev/x/githubactions@latest workflow.yml

The -d flag can be repeated to validate against multiple schemas at once.

Usage:
  cue vet [flags]

Flags:
  -c, --concrete                 require the evaluation to be concrete, or set -c=false to allow incomplete values
  -t, --inject stringArray       set the value of a tagged field
  -T, --inject-vars              inject system variables in tags
      --list                     concatenate multiple objects into a list
      --merge                    merge non-CUE files (default true)
  -n, --name string              regexp filter for non-CUE file names in directories
  -p, --package string           package name for non-CUE files
  -l, --path stringArray         CUE expression for single path component (see 'cue help flags' for details)
      --proto_enum string        mode for rendering enums (int|json) (default "int")
  -I, --proto_path stringArray   paths in which to search for imports
  -d, --schema string            expression to select schema for evaluating values in non-CUE files
      --with-context             import as object with contextual data

Global Flags:
  -E, --all-errors   print all available errors
  -i, --ignore       proceed in the presence of errors
  -s, --simplify     simplify output
      --trace        trace computation
  -v, --verbose      print information about progress