AI agents invoke browser_drag to trigger actions in Playwright. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
Based on the Playwright server context and sibling tools, browser_drag likely performs a drag-and-drop UI interaction in a browser. This is an Execute-category action as it triggers external browser operations. The description is empty, lowering confidence, but the naming pattern and server context strongly suggest browser automation.
From the tool's definition Tool name 'browser_drag' on a Playwright server alongside sibling tools like browser_click, browser_drop, which are browser interaction/automation tools.
Documented attack patterns abuse exactly the kind of access browser_drag gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Playwright, and nothing reaches the server without passing your rules. This is the rule we recommend for browser_drag:
{
"version": "1",
"default": "deny",
"tools": {
"browser_drag": {
"limits": [
{
"counter": "browser_drag_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}browser_drag stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
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browser_drag. It is categorised as a Execute tool in the Playwright MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Playwright MCP server in PolicyLayer and add a rule for browser_drag: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Playwright. Nothing to install.
browser_drag is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the browser_drag rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for browser_drag. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
browser_drag is provided by the Playwright MCP server (@playwright/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Playwright, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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