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How to let an agent explore and test a signup or checkout flow with Playwright MCP

Use MCP's persistent browser state for an exploratory test that clicks through a full flow.

Short answer: Install the server in your MCP client; then point the agent at a staging URL and describe the journey; let it act on the page through accessibility snapshots. All steps.

Who it is forA QA engineer or solo founder who wants a quick smoke test of the main user journey after each change.

The problemWriting and maintaining end-to-end tests for every flow takes time a small team does not have.

The outcomeA step-by-step report of the flow, where it broke, and a draft Playwright test to keep.

What you need first

  • Node.js
  • An MCP client such as Claude Code, Codex, Cursor or VS Code

Steps

  1. Install the server in your MCP client
  2. Point the agent at a staging URL and describe the journey
  3. Let it act on the page through accessibility snapshots
  4. Ask it to turn the successful path into a Playwright test file

Prompt for your agent

Using microsoft/playwright-mcp, explore the <flow> on <staging url> as a new user, report every step with what you saw, flag anything broken, and write the passing path as a Playwright test.

Caveat. Run it against staging or test accounts; the agent acts with whatever session the browser has.

Use this in your AI agent

Ask your agent

Using the Deduped MCP, get the setup steps for microsoft/playwright-mcp and "Let an agent explore and test a signup or checkout flow"

Add Deduped to Claude Code once

claude mcp add --transport http deduped https://dedupedai.com/mcp

Cursor, ChatGPT, others

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