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chrome-devtools

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Uses Chrome DevTools via MCP for efficient debugging, troubleshooting and browser automation. Use when debugging web pages, automating browser interactions, analyzing performance, or inspecting network requests. This skill does not apply to `--slim` mode (MCP configuration).

Google/antigravity/skills/chrome-devtools/SKILL.md

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Last checked
Nov 10, 2026

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Repository last updated
Nov 9, 2026
License
CC0-1.0

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## 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`.  
Addional tooling can be enabled by providing the following flags:

- For extension tooling, use the `--categoryExtensions` flag.
- For memory tooling, use the `--memoryDebugging` flag.

**Page targeting**: Page-scoped tools require a `pageId` parameter to target a specific page. Use `list_pages` to see available pages and their IDs (e.g. `pageId: 1`), or use the ID returned when creating a page with `new_page`.  
Note: For `evaluate_script`, `pageId` is required when targeting pages. However, when `--categoryExtensions` is enabled, `pageId` is optional so you can pass `serviceWorkerId` instead to evaluate inside an extension background service worker.  
**Element interaction**: Use `take_snapshot` to get page structure with element `uid`s. 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
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