humanmade/claude-code-standards/run-linters

Run Project Linters

When asked to run linters, check code quality, or verify changes:

1. Discover Available Linters

Check for configuration files to determine which linters are available:

PHP Linting

• phpcs.xml or phpcs.xml.dist → PHPCS available
• phpstan.neon or phpstan.neon.dist → PHPStan available

JavaScript Linting

• .eslintrc.* or eslint.config.* → ESLint available

CSS/SCSS Linting

• .stylelintrc* → Stylelint available

2. Check for Lint Scripts

Look in composer.json and package.json for predefined lint commands:

composer.json scripts:

{
  "scripts": {
    "lint": "phpcs && phpstan analyse",
    "phpcs": "phpcs",
    "phpstan": "phpstan analyse",
    "fix": "phpcbf"
  }
}

package.json scripts:

{
  "scripts": {
    "lint": "eslint . && stylelint '**/*.scss'",
    "lint:js": "eslint .",
    "lint:css": "stylelint '**/*.scss'",
    "lint:fix": "eslint . --fix"
  }
}

3. Run Linters Based on Changed Files

Determine what type of files were changed and run appropriate linters:

For PHP Changes

# If composer script exists:
composer run phpcs
 
# Or directly:
vendor/bin/phpcs path/to/changed/files
 
# For static analysis:
composer run phpstan
# Or:
vendor/bin/phpstan analyse path/to/changed/files

For JavaScript/TypeScript Changes

# If npm script exists:
npm run lint:js
 
# Or directly:
npx eslint path/to/changed/files

For CSS/SCSS Changes

# If npm script exists:
npm run lint:css
 
# Or directly:
npx stylelint "path/to/changed/**/*.scss"

For All Changes

# Run all available linters
composer run lint   # PHP linters
npm run lint        # JS/CSS linters

4. For Altis Projects

Run linters through the local server:

# PHP linting in Altis context
composer server cli -- eval-file .claude/lint-runner.php
 
# Or if PHPCS is available locally:
composer run phpcs

5. Report and Fix

After running linters:

1. Report findings - Summarize errors and warnings by category
2. Offer auto-fix - If available, offer to run:

• composer run fix or vendor/bin/phpcbf for PHP
• npm run lint:fix or npx eslint --fix for JS
• npx stylelint --fix for CSS/SCSS

1. Manual fixes - For issues that can't be auto-fixed, explain what needs to change

Common Issues and Fixes

PHPCS

• Missing docblocks → Add appropriate PHPDoc comments
• Incorrect spacing → Usually auto-fixable with phpcbf
• Naming conventions → Rename to match standards

ESLint

• Unused variables → Remove or prefix with underscore
• Missing dependencies in hooks → Add to dependency array
• Prefer const → Change let to const where possible

Stylelint

• Color format → Convert to preferred format
• Selector specificity → Refactor to reduce nesting
• Unknown properties → Check for typos or vendor prefixes