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drupal-service-di

Generate YAML service definitions with constructor injection for Drupal modules.

1|Updated Mar 22, 2026
Search Tags:#php#drupal#services#di#dependency-injection#module-development
One-click install
npx skills add https://github.com/AJV009/drupal-devkit --skill drupal-service-di
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: drupal-service-di
Source: https://github.com/AJV009/drupal-devkit/tree/main/plugins/drupal-core/skills/drupal-service-di
Command: npx skills add https://github.com/AJV009/drupal-devkit --skill drupal-service-di

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Drupal projects often grapple with scattered service definitions, inconsistent dependency injection, and hard-to-test code. This Skill provides structured patterns and practical examples to standardize service wiring, interface-driven design, and constructor-based injection.

Core Features & Use Cases

  • Centralized service definitions with YAML wiring examples for Drupal 10/11.
  • Interface-first design and constructor injection practices to improve testability and maintainability.
  • Use Case: Create a ContentManager service and a dependent subscriber with proper DI, then swap implementations via interfaces without touching call sites.

Quick Start

Create a module service that defines an interface, a concrete class, and a Drupal service tag wired via YAML, and inject the interface into a block that renders content.

Frequently Asked Questions about drupal-service-di

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I set up Drupal dependency injection for a custom module service?▼

To set up Drupal dependency injection, define an interface, implement a concrete class, and wire the service via YAML using constructor injection rather than static calls to ensure modular, testable code.

When do I need YAML service definitions in Drupal module development?▼

You need YAML service definitions when wiring dependencies for custom modules, enabling centralized service configuration and interface-driven implementation swapping without modifying call sites.

What is the best way to swap Drupal service implementations without touching call sites?▼

The best way to swap Drupal service implementations is using interface-driven design with constructor injection, allowing you to change underlying classes while keeping dependent code untouched.

Does this dependency injection pattern work with Drupal 10 and 11 module development?▼

Yes, these dependency injection patterns apply to Drupal 10 and 11 module development, providing structured YAML wiring examples for plugin wiring and service substitution scenarios.

Why should I avoid static calls in Drupal service classes?▼

Avoid static calls in Drupal service classes because they break testability and maintainability; constructor injection enforces cleaner dependency management and supports interface-driven design.

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