Web Design Reviewer

Use this skill for visual QA and source-level fixes after a page is already running. This is not the right skill for functional automation or regression suites.

Activation Conditions

• Reviewing a live page for layout or spacing defects
• Checking responsive behavior at a few critical widths
• Comparing a page to a design system or visual target
• Tracing a visible issue back to CSS, Tailwind classes, or component structure

Recommended Workflow

1. Open the page with a browser-capable MCP client such as Playwright MCP.
2. Capture the current state before editing.
3. Test desktop and mobile widths.
4. Fix the source code, then re-check the same viewports.

Playwright MCP Mapping

These tool names are current in the Playwright MCP server used by Codex:

• browser_navigate to open the page
• browser_snapshot to inspect accessible structure
• browser_take_screenshot for before and after captures
• browser_resize for responsive review
• browser_console_messages and browser_network_requests to catch front-end breakage

Review Checklist

• No overflow or clipped content at target widths
• Interactive controls remain visible and reachable
• Text contrast and focus states are acceptable
• Repeated components use consistent spacing, typography, and color
• Fixes were verified visually after the code change

References & Resources

Documentation

• Visual Checklist - High-signal items for layout, contrast, spacing, and responsive review
• Framework Fixes - Typical fix locations for CSS, Tailwind, CSS modules, and component styles

Scripts

• CSS Risk Audit - Scan CSS and front-end source for risky fixed widths, viewport traps, and overflow patterns

Cross-Client Portability

This skill is written to stay usable across GitHub Copilot, Claude Code, Codex, and Gemini CLI.

• GitHub Copilot: keep the folder in a Copilot-visible skill or plugin path, or wrap the workflow as project instructions if the host does not support portable skill folders directly.
• Claude Code: keep the folder in a local skills directory or a compatible plugin or marketplace source.
• Codex: install or sync the folder into $CODEX_HOME/skills/<skill-name> and restart Codex after major changes.
• Gemini CLI: this repository generates a project command named /skills:web-design-reviewer from this skill. Rebuild commands with python scripts/export-gemini-skill.py web-design-reviewer and then run /commands reload inside Gemini CLI.

MCP Availability And Fallback

Preferred MCP servers for this skill:

• Playwright MCP (primary)
• Chrome DevTools MCP (optional) (primary)

If MCP is unavailable in the current host:

• Use Playwright CLI, browser devtools, screenshots, and manual responsive checks when MCP browser tools are unavailable.
• Capture console or network issues with the browser or terminal before proposing visual fixes.

Related Skills

Skill	Relationship
web-testing	Functional and automated browser testing after design fixes
frontend-design	Design principles to review against
react-development	Fix design issues in React source code