Lint

/lint

Run code quality checks including linting, formatting, and type checking.

Usage

/lint [target] [--fix] [--strict]

Arguments

• target: Specific file or directory (default: src/ tests/)
• --fix: Auto-fix issues where possible
• --strict: Fail on warnings (for CI)

Instructions

When this skill is invoked:

Full Lint Pipeline

1. Read prd/00_technology.md to find the correct commands

2. Run all checks in sequence:

   # Linting (see prd/00_technology.md for specific command)
   {lint_check_command} src/ tests/
   
   # Formatting check
   {format_check_command} src/ tests/
   
   # Type checking
   {type_check_command} src/
   

3. Report Results:

   ==================== Lint Results ====================
   
   📋 Linting
   ✅ No issues found
   
   📐 Formatting
   ⚠️  2 files need formatting:
      - src/{project}/api/routes
      - tests/unit/test_config
   
   🔍 Type Checking
   ✅ No type errors
   
   ==================== Summary ====================
   ✅ Linting: Passed
   ⚠️  Formatting: 2 issues (run with --fix)
   ✅ Type Checking: Passed
   
   Run '/lint --fix' to auto-fix formatting issues.
   

With --fix Flag

# Fix linting issues
{lint_fix_command} src/ tests/

# Fix formatting
{format_fix_command} src/ tests/

Report what was fixed:

🔧 Auto-fixed issues:

Linting:
- src/{project}/api/routes: Removed unused import
- src/{project}/services/user: Sorted imports

Formatting:
- src/{project}/api/routes: Reformatted
- tests/unit/test_config: Reformatted

✅ All issues fixed!

Specific Checks

Run individual checks (commands from prd/00_technology.md):

# Linting only
{lint_check_command} src/

# Formatting only
{format_check_command} src/

# Type checking only
{type_check_command} src/

# Security rules only (if supported)
{security_lint_command} src/

CI Mode (--strict)

For CI pipelines, use strict mode:

• Returns non-zero exit code on any issue
• Treats warnings as errors
• Outputs machine-readable format if available

Quality Standards

From .claude/rules/code-quality.md:

• ✅ All functions must have type annotations
• ✅ All classes must have docstrings
• ✅ No unused imports
• ✅ Imports sorted
• ✅ Line length within configured limit
• ✅ No security issues

Example Output

$ /lint

🔍 Running code quality checks...

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
📋 Linting
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✅ All 15 files passed

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
📐 Formatting
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✅ All files formatted correctly

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
🔍 Type Checking
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Success: no issues found in 15 source files

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✅ All checks passed!
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━