ユーザーからのプロンプトを受け取り、ランダムな挨拶を返します。
AI agents call get_random_greeting to retrieve information from Deno Gemini Grounding 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 simple retrieval operation: it takes user input and returns a generated greeting. It has no side effects, does not modify any data, and does not execute external operations. It is a pure read operation with minimal security risk.
From the tool's definition Tool description states it 'receives a prompt from user and returns a random greeting' (translated from Japanese). No data modification, deletion, code execution, or external operations occur.
Attacks that exploit this kind of access
ユーザーからのプロンプトを受け取り、ランダムな挨拶を返します。. It is categorised as a Read tool in the Deno Gemini Grounding MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Deno Gemini Grounding MCP Server MCP server in PolicyLayer and add a rule for get_random_greeting: 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 Deno Gemini Grounding MCP Server. Nothing to install.
get_random_greeting 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_random_greeting 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_random_greeting. 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_random_greeting is provided by the Deno Gemini Grounding MCP Server MCP server (rinerebox1/deno-gemini-grounding-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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