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golang-dependency-injection

Comprehensive guide for dependency injection (DI) in Golang

golang-dependency-injection is an agent skill from the samber cc-skills-golang collection for dependency injection in Go. It explains why injection matters, for testability, loose coupling, separation of concerns and lifecycle management, and it helps an agent choose the simplest approach that solves the problem. Its persona is a Go software architect who guides teams to testable designs and never over-engineers. The skill has two modes. Design mode applies to a new project, a new service or a new service added to an existing setup: the agent assesses the dependency graph and lifecycle needs, recommends manual injection or a library from a decision table, and then generates the wiring code. Refactor mode applies to existing coupled code, and it runs up to three parallel sub-agents: one finds global variables and service set-up in init functions, one maps concrete types that should become interfaces, and one finds service-locator anti-patterns, where a container is passed around as an argument. The results are merged into one migration plan. The skill names libraries including google wire, uber dig and fx, and samber do, and it notes that their current APIs should be checked in their official documentation. It is useful for teams that have grown a Go codebase with global state and want a path to injection that keeps testing simple. It is listed on skills.sh, where the page shows install counts and GitHub stars for the collection, and its security audits all pass. Install it with npx skills add https://github.com/samber/cc-skills-golang --skill golang-dependency-injection.