feat(mcp): add --mobile emulation and plumb --device through the CLI#41657
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Add a --mobile flag that emulates a generic recent mobile device based on the browser family (Pixel 10 for Chromium, iPhone 17 for WebKit). Mobile pages are usually lighter, so snapshots are smaller and cheaper. Available on the MCP server and the agent CLI (playwright-cli open). Also plumb --device through the agent CLI open command, which previously only existed on the MCP server, and advertise both in the skill.
yury-s
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Jul 7, 2026
| if (device) | ||
| throw new Error('Cannot use --mobile together with --device, pick one.'); | ||
| if (browserName === 'firefox') | ||
| throw new Error('--mobile is not supported with the Firefox browser.'); |
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we might actually be able to enable this
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Test results for "MCP"3 failed 7677 passed, 1225 skipped Merge workflow run. |
This was referenced Jul 9, 2026
yury-s
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Jul 9, 2026
## What's New ### New Tools - **`browser_find`** — Search the accessibility snapshot of the current page for text or a regular expression. Returns matching snapshot nodes with a few lines of surrounding context (like search snippets), which is cheaper than capturing the whole snapshot when you only need to locate an element and its ref ([#41605](microsoft/playwright#41605), [#41654](microsoft/playwright#41654)) ### Tool Improvements - **Less verbose snapshots** — Accessibility snapshots are distilled to reduce noise and token usage ([#41604](microsoft/playwright#41604)) - **Mobile & device emulation** — New `--mobile` flag and `--device` option to emulate mobile devices from the CLI ([#41657](microsoft/playwright#41657)) - **Navigation status** — `browser_navigate` now surfaces non-2xx navigation status codes ([#41589](microsoft/playwright#41589)) ## Bug Fixes - Enable the chromium sandbox for the default browser ([#41652](microsoft/playwright#41652)) - Close the isolated HTTP client context on disconnect ([#41560](microsoft/playwright#41560)) - Wait for the client event stream before sending server→client requests ([#41559](microsoft/playwright#41559))
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Summary
--mobileflag that emulates a generic recent mobile device by browser family: Pixel 10 (Chromium) / iPhone 17 (WebKit). Mobile pages are usually lighter, so snapshots are smaller and cheaper.playwright mcp --mobile) and the agent CLI (playwright-cli open --mobile).--devicethrough the agent CLIopencommand (it previously only existed on the MCP server), and advertise both options in the skill.