ddd-kotlin-idioms

One-line summary

Translate DDD pattern decisions into idiomatic Kotlin using stdlib only — no framework opinions.

When to use this skill

• A DDD pattern has been chosen (typically via ddd-implement) and the target language is Kotlin.
• The user wants idiomatic code, not pseudocode.
• A code review on Kotlin DDD code asks "what is the right Kotlin construct for this pattern?".

When NOT to use this skill

• The target language is not Kotlin.
• The user is still deciding the pattern — route to a ddd-core pattern skill first.
• The user wants framework-specific scaffolding (Spring annotations, Arrow Either) — those are out of scope here and will live in future adapter plugins (ddd-kotlin-spring, ddd-kotlin-arrow).

Core content

The mapping. For each DDD pattern, the idiomatic Kotlin construct and the trade-off that motivates the choice.