LongPress

LongPress action, Long press the element. Parameters: locate (object) - The element to be long pressed; duration? (number) - Long press duration in milliseconds

SERVERAndroid SOURCE@midscene/android-mcp

High RISK CLASS

Category Execute

Parameters 81 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/android/longpress.md

WHAT IT DOES

What LongPress does on Android

AI agents invoke LongPress to trigger actions in Android. 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
`locate`	object	Yes	The element to be long pressed
`duration`	number	—	Long press duration in milliseconds
`android.deviceId`	string	—	Android device ID (from adb devices)
`android.useScrcpy`	boolean	—	Enable scrcpy accelerated screenshots
`android.aiActContext`	string	—	Background knowledge passed to aiAct. Default: no extra context.
`android.waitAfterAction`	number	—	Wait time in milliseconds after each action execution. Default: 300ms.
`android.replanningCycleLimit`	integer	—	Maximum number of replanning cycles for aiAct. Default: model adapter default.
`android.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.

RISK

Why LongPress is rated High

LongPress executes a UI automation action on an Android device. It performs a gesture (long press) that triggers UI interactions whose effects depend entirely on the target element - could open context menus, initiate drag-and-drop, trigger app-specific actions, or invoke system-level operations. This is an Execute-category action as it runs an external operation with argument-dependent effects.

From the tool's definition LongPress action, Long press the element - triggers a UI interaction on an Android device, executing a physical gesture that may trigger context menus, drag operations, or other UI-dependent actions

Risk signalsHigh parameter count (13 properties)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs LongPress safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Android, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For LongPress, this is the rule to start with:

LongPress Rate-limited

LongPress 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "LongPress": {
      "limits": [
        {
          "counter": "longpress_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Android, apply this rule, and every LongPress call is checked against it from then on.

FAQ

Questions about LongPress

What does the LongPress tool do? +

LongPress action, Long press the element. Parameters: locate (object) - The element to be long pressed; duration? (number) - Long press duration in milliseconds. It is categorised as a Execute tool in the Android MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

What parameters does LongPress accept? +

LongPress accepts 8 parameters: locate, duration, android.deviceId, android.useScrcpy, android.aiActContext, android.waitAfterAction, android.replanningCycleLimit, android.screenshotShrinkFactor. Required: locate. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on LongPress? +

Register the Android MCP server in PolicyLayer and add a rule for LongPress: 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 Android. Nothing to install.

What risk level is LongPress? +

LongPress is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit LongPress? +

Yes. Add a rate_limit block to the LongPress 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.

How do I block LongPress completely? +

Set action: deny in the PolicyLayer policy for LongPress. 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.

What MCP server provides LongPress? +

LongPress is provided by the Android MCP server (@midscene/android-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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