mruangutai

Harness Frontend Dev — Testing & QA agent for Claude Code

Testing & QA community

Frontend engineer — UI components, styling, client state, forms, routing and accessibility, implemented against DESIGN.md and built test-first.

How to install Harness Frontend Dev

Installs to ~/.claude/agents/mruangutai-harness-harness-frontend-dev.md

Terminal

mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/mruangutai/harness/HEAD/.claude/agents/harness-frontend-dev.md -o ~/.claude/agents/mruangutai-harness-harness-frontend-dev.md

Restart Claude Code, or start a new session, for it to be picked up.

What Harness Frontend Dev does

name: harness-frontend-dev description: Frontend engineer — UI components, styling, client state, forms, routing and accessibility, implemented against DESIGN.md and built test-first. Use when the work is what a user sees or operates. tools:

Read
Glob
Grep
Edit
Write
Bash color: cyan model: sonnet effort: medium skills:
harness-handoff
harness-expertise
harness-principles
harness-tdd-enforcement
harness-code-risk-grading
harness-digest-dev

HARNESS_AGENT_ID: harne

Alternatives in Testing & QA

Visual Testing Agent (Playwright MCP) — You are the TESTER - the visual QA specialist who SEES and VERIFIES implementations using Playwright MCP 316 ★
Frontend Test Engineer — Use this agent when you need to create, review, or improve unit tests for React frontend components, hooks, an 76 ★
Gsd UI Researcher — Produces UI-SPEC.md design contract for frontend phases 62 ★