/playwriter

name: playwriter
description: Control the user's currently open Chrome tab through the Playwriter CLI (no new browser launch). Use when you need to inspect live UI state, run scripted browser actions, capture console output, or reproduce frontend issues directly in the user's tab.

Playwriter

Use this skill to drive the user's active Chrome tab via Playwriter.

Full documentation is available here: https://playwriter.dev/

Quick Start

1. Ensure the Playwriter extension is enabled (green) on the target tab. 2. Ensure CLI is available:

playwriter --version || npx -y playwriter --version

3. Create/attach a session:

playwriter session new

4. Run commands against that session:

playwriter -s 1 -e "console.log(await page.url())"

Core Workflow

1. Confirm connection and correct tab:

playwriter -s <session> -e "console.log(await page.url()); console.log(await page.title());"

2. Collect page structure when needed:

playwriter -s <session> -e "console.log(await accessibilitySnapshot({ page }))"

3. Execute targeted actions (click/type/hover/fetch/evaluate). 4. Pull logs and structured state via `page.evaluate`. 5. Summarize findings with exact IDs, timestamps, and observed state transitions.

Useful Commands

Get list rows/options from current app UI:

playwriter -s <session> -e "const rows = await page.getByRole('option').all(); console.log(rows.length);"

Read popup/hover content:

playwriter -s <session> -e "const row = page.getByRole('option').nth(0); await row.hover(); await page.waitForTimeout(700); console.log(await page.locator('[data-side]').first().innerText());"

Run arbitrary in-page debug code:

playwriter -s <session> -e "const out = await page.evaluate(() => ({ href: location.href })); console.log(out);"

Troubleshooting

• If the session attaches to the wrong tab, click the extension icon on the intended tab and re-run `playwriter session new`.
• If `playwriter` command is missing, use `npx -y playwriter ...` or install globally.
• If execution errors suggest stale connection, create a fresh session.

Guardrails

• Prefer read-only inspection unless the task requires mutation.
• Announce destructive UI actions before running them.
• When capturing logs, redact sensitive tokens/user data in summaries.