Agent skill
solid-php
SOLID principles for Laravel 12 and PHP 8.5. Files < 100 lines, interfaces separated, PHPDoc mandatory. Auto-detects Laravel and FuseCore architecture.
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Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/data/solid-php
SKILL.md
SOLID PHP - Laravel 12 + PHP 8.5
Agent Workflow (MANDATORY)
Before ANY implementation, launch in parallel:
- fuse-ai-pilot:explore-codebase - Analyze existing architecture
- fuse-ai-pilot:research-expert - Verify Laravel/PHP docs via Context7
- mcp__context7__query-docs - Check SOLID patterns
After implementation, run fuse-ai-pilot:sniper for validation.
Auto-Detection
| Files Detected | Architecture | Interfaces Location |
|---|---|---|
composer.json + artisan |
Laravel Standard | app/Contracts/ |
app/Modules/ directory |
FuseCore Modular | app/Modules/[Feature]/Contracts/ |
routes/modules.php |
FuseCore Modular | app/Modules/[Feature]/Contracts/ |
Verification: php artisan --version → Laravel 12.x
Decision Tree: Where to Put Code?
New code needed?
├── HTTP validation → app/Http/Requests/
├── Single action → app/Actions/
├── Business logic → app/Services/ (or Modules/[X]/Services/)
├── Data access → app/Repositories/
├── Data transfer → app/DTOs/
├── Interface → app/Contracts/
├── Event → app/Events/
└── Authorization → app/Policies/
Decision Tree: Which Pattern?
| Need | Pattern | Location | Max Lines |
|---|---|---|---|
| HTTP handling | Controller | Controllers/ | 50 |
| Validation | FormRequest | Requests/ | 50 |
| Single operation | Action | Actions/ | 50 |
| Complex logic | Service | Services/ | 100 |
| Data access | Repository | Repositories/ | 100 |
| Data structure | DTO | DTOs/ | 50 |
| Abstraction | Interface | Contracts/ | 30 |
Critical Rules (MANDATORY)
1. Files < 100 lines
- Split at 90 lines - Never exceed 100
- Controllers < 50 lines
- Models < 80 lines (excluding relations)
- Services < 100 lines
2. Interfaces Separated
app/Contracts/ # Interfaces ONLY
├── UserRepositoryInterface.php
└── PaymentGatewayInterface.php
3. PHPDoc Mandatory
php
/**
* Create a new user from DTO.
*
* @param CreateUserDTO $dto User data transfer object
* @return User Created user model
* @throws ValidationException If email already exists
*/
public function create(CreateUserDTO $dto): User
Reference Guide
Concepts
| Topic | Reference | When to consult |
|---|---|---|
| SOLID | solid-principles.md | S, O, L, I, D implementation |
| Anti-Patterns | anti-patterns.md | Code smells detection |
| Decisions | decision-guide.md | Pattern selection |
| PHP 8.5 | php85-features.md | Modern PHP features |
| Structure | laravel12-structure.md | Standard Laravel |
| FuseCore | fusecore-structure.md | Modular architecture |
Templates
| Template | When to use |
|---|---|
| code-templates.md | Service, DTO, Repository, Interface |
| controller-templates.md | Controller, Action, FormRequest, Policy |
| refactoring-guide.md | Step-by-step migration from legacy code |
Forbidden
| Anti-Pattern | Detection | Fix |
|---|---|---|
| Files > 100 lines | Line count | Split into smaller files |
| Controllers > 50 lines | Line count | Extract to Service |
| Interfaces in impl files | Location | Move to Contracts/ |
| Business logic in Models | Code in model | Extract to Service |
| Concrete dependencies | new Class() |
Inject interface |
| Missing PHPDoc | No doc block | Add documentation |
| Missing strict_types | No declare | Add to all files |
| Fat classes | > 5 public methods | Split responsibilities |
Best Practices
| DO | DON'T |
|---|---|
| Use constructor property promotion | Use property assignment |
| Depend on interfaces | Depend on concrete classes |
Use final readonly class |
Use mutable classes |
Use declare(strict_types=1) |
Skip type declarations |
| Split at 90 lines | Wait until 100 lines |
| Use DTOs for data transfer | Use arrays |
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