expect

Automate end-to-end browser verification of code changes with Playwright MCP tooling.

3.5k|155|Updated Mar 12, 2026
One-click install
npx skills add https://github.com/millionco/expect --skill expect-millionco
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: expect
Source: https://github.com/millionco/expect/tree/main/.agents/skills/expect
Command: npx skills add https://github.com/millionco/expect --skill expect-millionco

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Editing code and UI components without assurance that changes will render correctly in a real browser leads to undetected regressions. This skill automates end-to-end browser verification to catch visual and interaction issues before release.

Core Features & Use Cases

  • End-to-end browser testing with Playwright MCP tooling to verify UI changes in real browser sessions.
  • Subagent-friendly execution model that can run alongside code edits and CI workflows to keep conversations responsive.
  • Session reuse and browser-state management to speed up re-verification after fixes.
  • Use Case: When you modify a React component, CSS, or route, trigger a browser-based test that confirms visuals, interactions, and accessibility cues.

Quick Start

Ask your agent to verify code changes in a real browser using Expect's Playwright workflow.

Frequently Asked Questions about expect

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I automate end-to-end browser verification for React component changes?

You can automate end-to-end browser verification for React component changes by using Playwright MCP tooling to open real browser sessions, test interactions, and capture screenshots to validate UI edits.

Can I use Playwright MCP to verify front-end code edits in a real browser?

Yes, Playwright MCP tooling supports verifying front-end code edits like tsx, jsx, css, and html by running real-browser tests that confirm visuals and interactions after code modifications.

What is the best way to run automated QA on UI changes without slowing down my workflow?

Running automated QA on UI changes without slowing down your workflow is best achieved by using a subagent-friendly execution model with Playwright that runs browser verification alongside code edits and CI workflows.

Does browser session reuse speed up re-verification after fixing front-end bugs?

Yes, browser session reuse and state management speed up re-verification after fixing front-end bugs by maintaining the browser environment, reducing the overhead of restarting tests for subsequent validations.

How do I catch visual regressions when editing CSS or routes before release?

To catch visual regressions when editing CSS or routes before release, trigger automated Playwright browser tests that validate rendering, accessibility cues, and interactions to detect issues early.

Do I need specific MCP tools to run browser-based verification on front-end code?

Yes, you need the MCP toolchain including open, playwright, and screenshot tools to execute real-browser verification, manage sessions, and return structured results for automated validation of front-end code.