# axx lint

> Check test-data isolation: values that must stay unique across seeds, fixtures and features

Source: https://axx.nimbusxr.us/references/cli/axx-lint/

Run the test-data isolation rules from the lint section of axx.yaml: each
rule extracts values (ids, keys, names) from the files it selects, with a
regular expression or a JSON path, and reports values that repeat where they
must be unique, so scenarios sharing a database can run in parallel. Builtin
checks also warn about SQL selection and trigger ordinals that cannot work.

With paths, only findings touching those files or directories are reported
(every file is still scanned: a value collides with occurrences anywhere).

Formats (repeatable, NAME or NAME:FILE; FILE is relative to axx.yaml):
  human   grouped by rule, with file:line and the colliding value (default)
  json    the --json envelope
  junit   one test case per rule
  sarif   SARIF 2.1.0 for code scanning (paths relative to the repository)
  github  GitHub Actions ::error/::warning annotations

Exit codes: 0 clean (or only warnings, e.g. rules in warn mode), 2 invalid
configuration, 3 violations.

```text
Usage:
  axx lint [paths...] [flags]

Examples:
  axx lint
  axx lint seeds/manifest-kestrel.yaml
  axx lint --format github --format sarif:build/axx/lint.sarif
  axx lint --mode warn

Flags:
  -D, --define stringArray   set a property for ${sys:name}, e.g. -D local.host=docker
  -f, --format stringArray   output NAME or NAME:FILE (repeatable): human, json, junit, sarif, github
  -h, --help                 help for lint
      --mode string          override the mode of every rule: error or warn
      --profile string       apply profiles.<name> / axx.<name>.yaml (env: AXX_PROFILE)

Global Flags:
      --compact         print only what matters (auto-enabled for coding agents)
  -c, --config string   path to axx.yaml (default: search upward from the working directory)
      --json            emit machine-readable JSON (stable envelope)
      --no-color        disable colored output
  -v, --verbose count   increase log verbosity (-v, -vv)
```