ios-dependency-injection

Configure protocol-based DI with property wrappers and Factory/Swinject. Use when setting up dependency injection or factory patterns in iOS. (triggers: **/*.swift, @Injected, Resolver, Container, Swinject, register, resolve)

385 stars

Best use case

ios-dependency-injection is best used when you need a repeatable AI agent workflow instead of a one-off prompt.

Configure protocol-based DI with property wrappers and Factory/Swinject. Use when setting up dependency injection or factory patterns in iOS. (triggers: **/*.swift, @Injected, Resolver, Container, Swinject, register, resolve)

Teams using ios-dependency-injection should expect a more consistent output, faster repeated execution, less prompt rewriting.

When to use this skill

  • You want a reusable workflow that can be run more than once with consistent structure.

When not to use this skill

  • You only need a quick one-off answer and do not need a reusable workflow.
  • You cannot install or maintain the underlying files, dependencies, or repository context.

Installation

Claude Code / Cursor / Codex

$curl -o ~/.claude/skills/ios-dependency-injection/SKILL.md --create-dirs "https://raw.githubusercontent.com/HoangNguyen0403/agent-skills-standard/main/skills/ios/ios-dependency-injection/SKILL.md"

Manual Installation

  1. Download SKILL.md from GitHub
  2. Place it in .claude/skills/ios-dependency-injection/SKILL.md inside your project
  3. Restart your AI agent — it will auto-discover the skill

How ios-dependency-injection Compares

Feature / Agentios-dependency-injectionStandard Approach
Platform SupportNot specifiedLimited / Varies
Context Awareness High Baseline
Installation ComplexityUnknownN/A

Frequently Asked Questions

What does this skill do?

Configure protocol-based DI with property wrappers and Factory/Swinject. Use when setting up dependency injection or factory patterns in iOS. (triggers: **/*.swift, @Injected, Resolver, Container, Swinject, register, resolve)

Where can I find the source code?

You can find the source code on GitHub using the link provided at the top of the page.

SKILL.md Source

# iOS Dependency Injection

## **Priority: P0**

## Implementation Workflow

1. **Prefer initializer injection** — Pass dependencies through `init` as the primary approach.
2. **Inject protocols** — Always depend on protocols instead of concrete classes for testability.
3. **Choose a DI library** — Use `Factory` for lightweight DI, `Swinject` for enterprise-grade container-based projects.
4. **Apply correct scoping** — Singleton for app-wide services (Auth, Network); Unique/Transient for ViewModels; Graph/Cached for feature flows.

See [protocol-based DI and Factory registration examples](references/implementation.md)

## Anti-Patterns

- ❌ Global singleton access everywhere — inject services via initializer
- ❌ `Resolver.resolve()` inside business logic — pass dependencies via constructor
- ❌ Direct class instantiation — depend on protocols for testability

## References

- [Manual & Library DI Setup](references/implementation.md)

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