chrome-devtools

SKILL.md

Chrome DevTools integration for debugging, performance analysis, and browser automation via MCP.

Provides tools for page navigation, element inspection via snapshots, clicking, form filling, screenshot capture, and JavaScript evaluation

Operates on a persistent Chrome profile with automatic browser startup; switch between multiple pages using list_pages and select_page

Supports efficient workflows: navigate, wait for content, take snapshots to identify elements by uid, then interact with those elements

Handles large outputs via file paths and offers pagination/filtering to minimize data transfer; use take_snapshot for automation and take_screenshot for visual inspection

Core Concepts

Browser lifecycle: Browser starts automatically on first tool call using a persistent Chrome profile. Configure via CLI args in the MCP server configuration: npx chrome-devtools-mcp@latest --help. To enable extensions, use --categoryExtensions.
Page selection: Tools operate on the currently selected page. Use list_pages to see available pages, then select_page to switch context.

Element interaction: Use take_snapshot to get page structure with element uids. Each element has a unique uid for interaction. If an element isn't found, take a fresh snapshot - the element may have been removed or the page changed.

Workflow Patterns

Before interacting with a page

Navigate: navigate_page or new_page

Wait: wait_for to ensure content is loaded if you know what you look for.

Snapshot: take_snapshot to understand page structure

Interact: Use element uids from snapshot for click, fill, etc.

Efficient data retrieval