code-implementer

Features and purpose

This skill should be used when the user asks to 'implement', 'write code', 'build a feature', 'create a function', 'add functionality', 'code this', 'make this work', or needs to write production code for Java/Spring Boot or TypeScript/Next.js following FP, DDD, and testability patterns. Ensures code follows functional core/imperative shell, proper invariants, Either-based error handling, and is designed for testing without mocks.

Quick start

Follow the repository instructions for this skill and your agent. Review the files and dependencies before adding it to your workflow.