playwriter（playwriter 命令行）

Playwriter

Browser automation via MCP. Requires Chrome extension installed and clicked on target tab.

Tools

execute

Run Playwright code with access to page, context, state (persistent), and utility functions.

// Single-line format with semicolons
await page.goto('https://example.com', { waitUntil: 'domcontentloaded' });

reset

Reset CDP connection when errors occur or pages show as about:blank.

Core Patterns

Check Page State (do this after actions)

console.log('url:', page.url()); console.log(await accessibilitySnapshot({ page }).then(x => x.split('\n').slice(0, 30).join('\n')));

Click Elements (use aria-ref from snapshot)

await page.locator('aria-ref=e13').click();

Fill Input

await page.locator('input[name="email"]').fill('test@example.com');

Screenshot

await page.screenshot({ path: 'shot.png', scale: 'css' });

Visual Screenshot with Labels

await screenshotWithAccessibilityLabels({ page });

Utility Functions

Rules

• Multiple calls: Break complex logic into separate execute calls
• Never close: Don't call browser.close() or context.close()
• No bringToFront: Never call unless user asks
• Always verify: Check page state after clicks/navigation
• Persist data: Use state.myVar = value across calls