Perform a drag and drop gesture from one point to another. Uses input draganddrop on Android 8.0+ (API 26), falls back to swipe on older versions.
Part of the Scrcpy server.
Free to start. No card required.
AI agents use drag_drop to create or modify resources in Scrcpy. 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_drop 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 Scrcpy.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"drag_drop": {
"limits": [
{
"counter": "drag_drop_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Scrcpy policy for all 38 tools.
These attack patterns abuse exactly the kind of access drag_drop 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.
Perform a drag and drop gesture from one point to another. Uses input draganddrop on Android 8.0+ (API 26), falls back to swipe on older versions.. It is categorised as a Write tool in the Scrcpy MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Scrcpy MCP server in PolicyLayer and add a rule for drag_drop: 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 Scrcpy. Nothing to install.
drag_drop 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_drop 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_drop. 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_drop is provided by the Scrcpy MCP server (scrcpy-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 38 Scrcpy tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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