ui_wait

Wait for UI element to appear (polling with timeout)

SERVERClaude Mobile SOURCEalexgladkov/claude-in-mobile

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/alexgladkov-claude-in-mobile/ui-wait.md

WHAT IT DOES

What ui_wait does on Claude Mobile

AI agents invoke ui_wait to trigger actions in Claude Mobile. 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.

RISK

Why ui_wait is rated High

The tool triggers automated actions on a mobile device (Android via ADB or iOS Simulator via simctl) by waiting for and interacting with UI elements. This is an execution action whose effects depend on which UI element is being waited for and what subsequent actions follow.

From the tool's definition Tool performs mobile device automation through polling and waiting for UI elements on controlled devices. While not directly destructive or financial, it executes operations that control device behavior and state observation, part of the broader 'mobile…

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs ui_wait safely

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

ui_wait Rate-limited

ui_wait 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": {
    "ui_wait": {
      "limits": [
        {
          "counter": "ui_wait_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 Claude Mobile, apply this rule, and every ui_wait call is checked against it from then on.

FAQ

Questions about ui_wait

What does the ui_wait tool do? +

Wait for UI element to appear (polling with timeout). It is categorised as a Execute tool in the Claude Mobile MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on ui_wait? +

Register the Claude Mobile MCP server in PolicyLayer and add a rule for ui_wait: 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 Claude Mobile. Nothing to install.

What risk level is ui_wait? +

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

Can I rate-limit ui_wait? +

Yes. Add a rate_limit block to the ui_wait 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 ui_wait completely? +

Set action: deny in the PolicyLayer policy for ui_wait. 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 ui_wait? +

ui_wait is provided by the Claude Mobile MCP server (alexgladkov/claude-in-mobile). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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