SK

Use this skill when building, reviewing, or refactoring Go code that must follow strict design discipline — ATDD/TDD workflow, explicit dependency injection, package-boundary discipline, and structured code review. Complements CLAUDE.md by focusing on process and design judgment rather than version-specific Go features.

Use this skill when building, reviewing, or refactoring Python code that requires strong maintainability discipline: SRP, DRY, OCP, explicit dependency injection, TDD/ATDD workflow, strict typing, architecture review, and clean project structure. Complements the project's Python CLAUDE.md with process rigor.

Use this skill when building, reviewing, or refactoring Rust code that requires strong maintainability discipline: SRP, DRY, OCP, explicit dependency injection, TDD/ATDD workflow, architecture review, and clean project structure. Complements the project's Rust CLAUDE.md with process rigor.

Applies a rigorous JavaScript and TypeScript development workflow focused on clean project structure, strict single responsibility, DRY design, TDD and ATDD, dependency injection, strict typing, readable error handling, and lint or static-analysis discipline. Use when implementing or repairing JS/TS business logic, tightening tests around behavior changes, removing weak types such as any, replacing hidden dependencies, cleaning up hardcoded values, or enforcing stronger code quality guardrails.