Get foreground app info (package + activity).
AI agents call get_foreground_app 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 queries and returns data (package name and activity name of the foreground app) with no side effects. It is a passive information retrieval operation that does not create, modify, delete, or execute anything on the device. The low severity reflects minimal risk even if misused, as it only exposes non-sensitive system state information.
From the tool's definition Tool name 'get_foreground_app' and description 'Get foreground app info (package + activity)' indicate a read-only operation that retrieves information about the currently active application without modifying or executing any actions.
Attacks that exploit this kind of access
Get foreground app info (package + activity). 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_foreground_app: 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_foreground_app 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_foreground_app 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_foreground_app. 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_foreground_app 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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