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Dead code

Skill edulazaro/laraclaude/skills/dead-code

Find unused classes, methods, routes, views, and imports.From its SKILL.md

Install
npx -y skills add edulazaro/laraclaude --skill dead-code

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SKILL.md

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Dead Code Detection

Find unused classes, methods, routes, Blade views, and import statements through static analysis.

Subcommands

SubcommandDescription
(no argument)Scan the entire project for dead code. Read-only report.
cleanRemove confirmed dead code. Asks for confirmation before each removal.
clean --dry-runShow what would be removed without deleting anything.
[directory]Analyze a specific directory for dead code. Read-only.

Detection Rules

1. Unused Classes

What to detect: Classes in app/ that are never instantiated, referenced, imported, or used anywhere else in the codebase.

How to scan:

  1. Use Glob to find all PHP classes in app/ (excluding vendor).
  2. For each class, extract the fully qualified class name.
  3. Use Grep to search the entire codebase for:
    • use App\ClassName; import statements
    • ClassName:: static calls
    • new ClassName( instantiation
    • ClassName::class references (in route files, service providers, model arrays, etc.)
    • Type hints: function foo(ClassName $param)
  4. Exclude self-references (the class referencing itself).
  5. Check special registration locations:
    • app/Providers/*.php for service provider registrations
    • config/*.php for class references in config
    • routes/*.php for controller references
    • composer.json for autoload references
    • Model $actions, $casts arrays for action/enum classes

Classes to skip (never flag as unused):

  • Models (may be used via Eloquent, route model binding, morph maps)
  • Service providers (registered in config/app.php or bootstrap/providers.php)
  • Middleware (registered in kernel or route groups)
  • Commands (auto-discovered by Laravel)
  • Observers (registered in service providers)
  • Policies (auto-discovered by naming convention)

Severity: Medium

Clean action: Delete the class file after confirmation.

2. Unused Public Methods

What to detect: Public methods on classes that are never called from outside the class.

How to scan:

  1. For each class, extract all public method names.
  2. Use Grep to search for calls to each method:
    • ->methodName( instance calls
    • ::methodName( static calls
    • 'methodName' string references (for dynamic dispatch, route actions, etc.)
  3. Exclude framework-convention methods that are called implicitly:
    • mount(), render(), boot(), booted() (Livewire/Eloquent)
    • handle() (Jobs, Actions, Commands)
    • up(), down() (Migrations)
    • rules(), messages() (Validation)
    • authorize() (Form Requests)
    • Relationship methods (called by Eloquent magic)
    • Scope methods (called via Model::scopeName())
    • Accessor/mutator methods

Severity: Low (methods may be used dynamically or reserved for future use)

Clean action: Remove the method after confirmation. Show the full method body before deletion so the user can review.

3. Unused Routes

What to detect: Routes defined in routes/*.php that are never linked to via route(), url(), or action() helpers.

How to scan:

  1. Use Read to parse all route files and extract named routes.
  2. For each named route, use Grep to search for:
    • route('route.name') calls
    • route('route.name', calls with parameters
    • Route::has('route.name') checks
    • Links in Blade: href="{{ route('route.name') }}"
    • Redirects: redirect()->route('route.name')
  3. Also check for unnamed routes by searching for the URI pattern.
  4. Exclude API routes that may be called by external clients.

Severity: Low (routes may be used by external systems or planned for future use)

Clean action: Comment out or remove the route definition after confirmation.

4. Unused Blade Views

What to detect: Blade view files in resources/views/ that are never rendered.

How to scan:

  1. Use Glob to find all resources/views/**/*.blade.php files.
  2. For each view, derive the view name (e.g., resources/views/livewire/properties/index.blade.php -> livewire.properties.index).
  3. Use Grep to search for references:
    • view('view.name') or view("view.name")
    • @include('view.name') or @include("view.name")
    • @extends('view.name')
    • @livewire('component.name')
    • <livewire:component-name />
    • @component('view.name')
    • <x-component-name (for component views)
  4. For Livewire Volt components, they are auto-discovered by path -- check if a route or @livewire directive references them.

Views to skip (never flag as unused):

  • Layout files in resources/views/layouts/ or resources/views/components/layouts/
  • Component views in resources/views/components/ (used via <x-name>)
  • Error pages in resources/views/errors/
  • Email templates in resources/views/mail/ or resources/views/emails/

Severity: Low

Clean action: Delete the view file after confirmation.

5. Unused Imports (use statements)

What to detect: use statements at the top of PHP files that import classes never referenced in the file body.

How to scan:

  1. For each PHP file, extract all use import statements.
  2. For each import, extract the class name (last segment of the namespace).
  3. Search the file body (excluding the use statement itself) for:
    • The class name as a type hint, return type, or standalone reference
    • The class name in PHPDoc comments (@param ClassName)
    • Static calls ClassName::
    • Instantiation new ClassName
  4. Flag imports where the class name is not found in the file body.

Severity: Very Low (cosmetic, no runtime impact)

Clean action: Remove the unused use statement.

Report Format

DEAD CODE ANALYSIS
===================

UNUSED CLASSES (3 found)
-------------------------
1. App\Services\LegacyImportService
   File: app/Services/LegacyImportService.php
   Reason: Zero references in codebase
   Lines: 145

2. App\Actions\Property\OldExportAction
   File: app/Actions/Property/OldExportAction.php
   Reason: Zero references in codebase (not in model $actions)
   Lines: 67

UNUSED ROUTES (2 found)
-------------------------
1. Route: 'admin.legacy.import' (GET /admin/legacy/import)
   File: routes/app.php:142
   Reason: No route() call found

UNUSED VIEWS (1 found)
------------------------
1. View: livewire.admin.legacy-import
   File: resources/views/livewire/admin/legacy-import.blade.php
   Reason: No @livewire or route reference

UNUSED IMPORTS (15 found)
--------------------------
1. app/Http/Controllers/PropertyController.php:8
   use App\Models\Office;  (never referenced)
2. app/Services/SearchService.php:5
   use Illuminate\Support\Str;  (never referenced)
...

SUMMARY
========
Category          | Found | Total Lines
------------------|-------|------------
Unused classes    | 3     | 312
Unused methods    | 7     | 89
Unused routes     | 2     | -
Unused views      | 1     | 45
Unused imports    | 15    | 15
Total dead code   | 28    | ~461 lines

Clean Mode

In clean mode, process each category in order (classes, methods, routes, views, imports):

  1. Show the item to be removed with full context.
  2. Ask for confirmation before each removal.
  3. For classes and views: delete the file.
  4. For methods: use Edit to remove the method from the class.
  5. For routes: use Edit to remove or comment out the route.
  6. For imports: use Edit to remove the use statement.

Notes

  • False positives are expected. Classes may be used via:
    • Dynamic instantiation (app($className))
    • Config references (config('key') resolving to a class)
    • Service container bindings
    • Event listeners registered as strings
    • Morph maps in AppServiceProvider
  • Always err on the side of caution. When in doubt, flag but do not auto-clean.
  • Methods on interfaces/contracts are never "unused" even if only called via the interface.
  • Test files reference application classes but should not be considered "usage" for dead code purposes (a class only used in tests may still be dead).
  • Blade views can be referenced dynamically: view("livewire.{$type}.{$action}") -- these are not detectable statically.

Keep looking

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