Check if specific text exists anywhere on the current screen
AI agents call has-text-in-screen to retrieve information from MCP Appium Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only reads/queries the current screen state to check for the presence of text. It has no side effects, does not modify any data, and cannot cause harm if misused — it simply returns a boolean or similar result indicating whether text is present.
From the tool's definition Check if specific text exists anywhere on the current screen
Documented attack patterns abuse exactly the kind of access has-text-in-screen gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Appium Server, and nothing reaches the server without passing your rules. This is the rule we recommend for has-text-in-screen:
{
"version": "1",
"default": "deny",
"tools": {
"has-text-in-screen": {}
}
}has-text-in-screen is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Check if specific text exists anywhere on the current screen. It is categorised as a Read tool in the MCP Appium Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Appium Server MCP server in PolicyLayer and add a rule for has-text-in-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 MCP Appium Server. Nothing to install.
has-text-in-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 has-text-in-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 has-text-in-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.
has-text-in-screen is provided by the MCP Appium Server MCP server (rahulec08/appium-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 110 MCP Appium Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
110 MCP Appium Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.