Extract all visible text from current screen.
AI agents call get_all_text_on_screen to retrieve information from Enhanced ADB MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only operation that captures and returns the visible text content displayed on an Android device screen. It has no side effects, does not modify any state, and does not execute commands or delete data. The extraction of UI text is a standard diagnostic and testing operation necessary for visual QA and UI testing workflows.
From the tool's definition Tool name 'get_all_text_on_screen' and description 'Extract all visible text from current screen' indicate data retrieval with no modification, deletion, or execution of operations.
Attacks that exploit this kind of access
Extract all visible text from current screen. It is categorised as a Read tool in the Enhanced ADB MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Enhanced ADB MCP Server MCP server in PolicyLayer and add a rule for get_all_text_on_screen: 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 Enhanced ADB MCP Server. Nothing to install.
get_all_text_on_screen 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_all_text_on_screen 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_all_text_on_screen. 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_all_text_on_screen is provided by the Enhanced ADB MCP Server MCP server (rahulkr/r_adb_mcp_server). 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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