DragAndDrop action, Pick up a specific UI element and move it to a new position (e.g., reorder a card, move a file into a folder, sort list items). The element itself moves with your finger/mouse.. Parameters: from (object) - The position to be dragged; to (object) - The position to be dropped
AI agents invoke DragAndDrop to trigger actions in Web Bridge. 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.
| Parameter | Type | Required | Description |
|---|---|---|---|
to | object | Yes | The position to be dropped |
from | object | Yes | The position to be dragged |
web.url | string | — | URL to open in new tab (omit to use current page) |
web.aiActContext | string | — | Background knowledge passed to aiAct. Default: no extra context. |
web.waitAfterAction | number | — | Wait time in milliseconds after each action execution. Default: 300ms. |
web.replanningCycleLimit | integer | — | Maximum number of replanning cycles for aiAct. Default: model adapter default. |
web.screenshotShrinkFactor | number | — | Screenshot shrink factor before sending images to AI. Default: 1; high values may reduce recognition quality, especially on mobile. |
Parameters from the server's own tool schema.
DragAndDrop triggers a browser/UI interaction that moves elements, potentially reorganizing data, moving files, or reordering items. This is an Execute-category action as it performs an external UI operation with effects that depend on arguments. While individual drags may be reversible, misuse could reorder or misplace important UI elements or files.
From the tool's definition DragAndDrop action, Pick up a specific UI element and move it to a new position (e.g., reorder a card, move a file into a folder, sort list items)
Risk signalsAccepts URL/endpoint input (web.url) · High parameter count (17 properties)
Attacks that exploit this kind of access
DragAndDrop action, Pick up a specific UI element and move it to a new position (e.g., reorder a card, move a file into a folder, sort list items). The element itself moves with your finger/mouse.. Parameters: from (object) - The position to be dragged; to (object) - The position to be dropped. It is categorised as a Execute tool in the Web Bridge MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
DragAndDrop accepts 7 parameters: to, from, web.url, web.aiActContext, web.waitAfterAction, web.replanningCycleLimit, web.screenshotShrinkFactor. Required: to, from. The full parameter table on this page comes from the server's own tool schema.
Register the Web Bridge MCP server in PolicyLayer and add a rule for DragAndDrop: 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 Web Bridge. Nothing to install.
DragAndDrop 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 DragAndDrop 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 DragAndDrop. 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.
DragAndDrop is provided by the Web Bridge MCP server (@midscene/web-bridge-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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