filament-form-debugger

Testing & Quality

Diagnose and fix common Filament 4.x form errors - namespace issues (Tabs/Grid/Get), type mismatch, trait errors. USE WHEN encountering 'Class not found', 'Argument must be of type', namespace errors, or Filament compilation/runtime errors.

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How to use this skill

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Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/development/filament-form-debugger/SKILL.md

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When to Use This Skill

Error: "Class ... not found"
Error: "Argument must be of type ..."
Error: "Trait not found"
Namespace-related Filament errors
Form not displaying correctly

Quick Namespace Map

Type	Namespace	Examples
Layout	`Schemas\Components\`	Tabs, Grid, Section
Fields	`Forms\Components\`	TextInput, Select, Toggle
Get	`Schemas\...Utilities\Get`	fn (Get $get) =>
Schema	`Schemas\Schema`	form(Schema $schema)
Actions	`Actions\`	EditAction, DeleteAction
Enums	`Support\Enums\`	GridDirection

Quick Debug Process

Read error → Identify type (namespace/type/trait)
Check imports → Verify use statements
Check signature → form(Schema $schema): Schema
Apply fix → Use correct namespace
Clear cache → php artisan optimize:clear
Test → Reload page

Complete Import Template

<?php

// Layout (Schemas)
use Filament\Schemas\Components\Tabs;
use Filament\Schemas\Components\Grid;
use Filament\Schemas\Components\Section;

// Fields (Forms)
use Filament\Forms\Components\TextInput;
use Filament\Forms\Components\Select;
use Filament\Forms\Components\Toggle;

// Utilities
use Filament\Schemas\Components\Utilities\Get;
use Filament\Schemas\Schema;

// Actions
use Filament\Actions\EditAction;
use Filament\Actions\DeleteAction;

// Enums
use Filament\Support\Enums\GridDirection;

Prevention Checklist

Before saving:

Tabs/Grid/Section from Schemas\Components
TextInput/Select from Forms\Components
Get from Utilities\Get
Method signature: form(Schema $schema)
Only InteractsWithForms trait
Actions from Filament\Actions

Quick Commands

# Clear caches after fixing
php artisan optimize:clear
php artisan filament:clear-cache

# Rebuild autoload
composer dump-autoload

Complete Error Catalog

For full error list, detailed troubleshooting, and advanced fixes:

read .claude/skills/filament/filament-form-debugger/CLAUDE.md

Related skills:

Filament standards: read .claude/skills/filament/filament-rules/SKILL.md
Resource generation: read .claude/skills/filament/filament-resource-generator/SKILL.md

References

Top 5 Common Errors & Fixes: read .claude/skills/filament/filament-form-debugger/references/top-5-common-errors--fixes.md