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To run JavaScript in the page context, evaluate an expression on the page or a specific element for inspection or manipulation.
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Based on SOC occupation classification
To click a page element in the browser, perform a click on buttons, links, or controls during Playwright automation.
To close the current Playwright page, close the page to end the session or free resources.
To read console logs from the current page, retrieve console messages for debugging JavaScript output.
To drag and drop between elements on a web page, perform a drag interaction from a source to a target.
To upload files through a file input, provide one or more file paths for a page file chooser.
To fill multiple form fields at once, set values for inputs, checkboxes, and selects in a single call.
| name | playwright-browser-evaluate |
| description | To run JavaScript in the page context, evaluate an expression on the page or a specific element for inspection or manipulation. |
Use the MCP tool dev-swarm.request to send the payload as a JSON string:
{"server_id":"playwright","tool_name":"browser_evaluate","arguments":{}}
Evaluate JavaScript expression on page or element
The schema below describes the arguments object in the request payload.
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"function": {
"type": "string",
"description": "() => { /* code */ } or (element) => { /* code */ } when element is provided"
},
"element": {
"description": "Human-readable element description used to obtain permission to interact with the element",
"type": "string"
},
"ref": {
"description": "Exact target element reference from the page snapshot",
"type": "string"
}
},
"required": [
"function"
],
"additionalProperties": false
}
If the tool returns a task id, poll the task status via the MCP request tool:
{"server_id":"playwright","method":"tasks/status","params":{"task_id":"<task_id>"}}