AI agents call app_uninstall to permanently remove resources in uiautomator2 MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Uninstalling an application is a destructive action that irreversibly removes software and associated data from the device. This cannot be undone without reinstallation. While not as severe as a full factory reset, it represents permanent loss of application state and data.
From the tool's definition Tool name is 'app_uninstall' with empty description. The name clearly indicates irreversible removal of applications from an Android device.
Documented attack patterns abuse exactly the kind of access app_uninstall gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and uiautomator2 MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for app_uninstall:
{
"version": "1",
"default": "deny",
"hide": [
"app_uninstall"
]
}app_uninstall disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
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app_uninstall. It is categorised as a Destructive tool in the uiautomator2 MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the uiautomator2 MCP Server MCP server in PolicyLayer and add a rule for app_uninstall: 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 uiautomator2 MCP Server. Nothing to install.
app_uninstall is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the app_uninstall 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 app_uninstall. 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.
app_uninstall is provided by the uiautomator2 MCP Server MCP server (tanbro/uiautomator2-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from uiautomator2 MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
77 uiautomator2 MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.