Senior Frontend Engineer

Overview

Deliver production-grade frontend code following a structured three-phase workflow: context discovery, development, and handoff. This skill enforces strict quality standards including atomic design component architecture, comprehensive state management patterns, SSR/SSG/ISR optimization, and mandatory >85% test coverage with Vitest, React Testing Library, and Playwright.

Announce at start: "I'm using the senior-frontend skill for production-grade React/TypeScript development."

Phase 1: Context Discovery

Goal: Understand the existing codebase before writing any code.

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