Get structured UI state: interactive elements list + optional annotated screenshot.
AI agents call get_ui_state to retrieve information from Android MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries the current state of the Android UI without triggering any side effects, app changes, or system modifications. It is fundamentally a Read operation that enables observation of the device state necessary for other tools to function safely. While it may reveal sensitive information about running apps and UI elements, it does not modify, execute, or destroy anything.
From the tool's definition Tool returns 'structured UI state: interactive elements list + optional annotated screenshot' with no modification or execution capabilities. The verbs 'Get' and the absence of any action, write, or command execution language indicate pure data retrieval.
Attacks that exploit this kind of access
Get structured UI state: interactive elements list + optional annotated screenshot. It is categorised as a Read tool in the Android MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Android MCP Server MCP server in PolicyLayer and add a rule for get_ui_state: 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 MCP Server. Nothing to install.
get_ui_state is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_ui_state 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 get_ui_state. 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.
get_ui_state is provided by the Android MCP Server MCP server (wujie272/android-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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