swiftlint_fix

Run SwiftLint in auto-correction mode to automatically fix violations that have safe, mechanical corrections. This tool modifies your source files in place, applying fixes for issues like trailing whitespace, missing colons, vertical whitespace, and other formatting rules. Violations that cannot be safely auto-corrected are reported but left unchanged.

Parameters

Parameter	Type	Required	Default	Description
`path`	string	No	Current directory	Absolute path to the file or directory to fix
`config`	string	No	Auto-detected `.swiftlint.yml`	Absolute path to a custom SwiftLint configuration file

Usage Examples

Fix the entire project

“Auto-fix all SwiftLint violations in my FitnessTracker project”

{
  "path": "/Users/dev/Projects/FitnessTracker"
}

Fix a specific file

“Fix lint issues in my APIClient file”

{
  "path": "/Users/dev/Projects/FitnessTracker/FitnessTracker/Services/APIClient.swift"
}

Fix with a custom configuration

“Run SwiftLint auto-fix using the team’s config”

{
  "path": "/Users/dev/Projects/FitnessTracker",
  "config": "/Users/dev/Projects/FitnessTracker/.swiftlint.yml"
}

Example Output

Running SwiftLint auto-correction...

Corrected:
  /Users/dev/Projects/FitnessTracker/FitnessTracker/ViewModels/WorkoutViewModel.swift
    - trailing_whitespace (3 occurrences)
    - vertical_whitespace (1 occurrence)

  /Users/dev/Projects/FitnessTracker/FitnessTracker/Views/WorkoutDetailView.swift
    - colon (2 occurrences)
    - trailing_whitespace (1 occurrence)

  /Users/dev/Projects/FitnessTracker/FitnessTracker/Models/Workout.swift
    - opening_brace (1 occurrence)
    - trailing_semicolon (1 occurrence)

Remaining (not auto-correctable):
  /Users/dev/Projects/FitnessTracker/FitnessTracker/Views/WorkoutDetailView.swift:34:5:
    warning: Force Cast Violation: Force casts should be avoided (force_cast)

  /Users/dev/Projects/FitnessTracker/FitnessTracker/Services/APIClient.swift:89:45:
    error: Force Try Violation: Force tries should be avoided (force_try)

Summary: 8 violations corrected in 3 files, 2 violations remaining

swiftlint_run — Run a read-only lint check first to see all violations before fixing
swift_format_run — Apply swift-format for additional formatting corrections
build_warnings — Check for compiler warnings after fixing lint issues