Drag an element via native CDP mouse events (mousePressed → interpolated mouseMoved with buttons:1 → mouseReleased). Works for CSS-driven drag: slider thumbs, resize handles, text selection, mouse-based reorder lists (e.g. SortableJS in mouse mode). NOT suitable for HTML5 Drag&Drop API (draggable...
Part of the Chrome server.
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AI agents use drag to create or modify resources in Chrome. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call drag repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Chrome.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"drag": {
"limits": [
{
"counter": "drag_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Chrome policy for all 23 tools.
These attack patterns abuse exactly the kind of access drag gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Drag an element via native CDP mouse events (mousePressed → interpolated mouseMoved with buttons:1 → mouseReleased). Works for CSS-driven drag: slider thumbs, resize handles, text selection, mouse-based reorder lists (e.g. SortableJS in mouse mode). NOT suitable for HTML5 Drag&Drop API (draggable=true elements with dragstart/drop listeners, React DnD HTML5Backend, Vuedraggable, ng2-dnd) — that path needs Input.dispatchDragEvent which this tool does not implement. Parameters: from_ref/from_selector OR from_x+from_y as source, to_ref/to_selector OR to_x+to_y as target. steps (default 10, min 5) controls mouseMoved granularity.. It is categorised as a Write tool in the Chrome MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Chrome MCP server in PolicyLayer and add a rule for 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 Chrome. Nothing to install.
drag is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the 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 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.
drag is provided by the Chrome MCP server (@silbercue/chrome). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 23 Chrome tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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