take_screenshot
Capture a page's visual state to verify layouts, UI elements, modals, or navigation effects during JavaScript debugging.
Instructions
Captures the visual state of the currently selected page. Use it to verify page layout, visible UI state, selector targets, in-page dialogs/modals, or the effect of a navigation/click; it is not a substitute for DOM values, network evidence, or script inspection. By default it returns the visible viewport, while fullPage=true captures the whole document; oversized captures may be saved as a temporary artifact instead of attached. Pass filePath for a reusable local artifact; existing files require confirmOverwrite=true and remain subject to --allowedRoots.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| format | No | Image format for the attachment or saved file. Defaults to png; use jpeg when smaller lossy output is preferred. | png |
| quality | No | Compression quality for JPEG format (0-100). Higher values mean better quality but larger file sizes. Ignored for PNG format. | |
| filePath | No | Optional absolute or working-directory-relative path for a reusable screenshot artifact. Omit it to attach the image directly. Subject to --allowedRoots when configured. | |
| fullPage | No | Capture the entire scrollable document when true; leave false or omit it for the currently visible viewport. | |
| confirmOverwrite | No | Must be true when filePath already exists. New files do not require confirmation. |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| ok | Yes | Whether the tool completed successfully. | |
| data | No | Machine-readable result payload. | |
| tool | Yes | Stable MCP tool name. | |
| error | No | ||
| summary | Yes | Concise human-readable outcome. |