public-greet-world · NestJS MCP Server Module MCP

WHAT IT DOES

What public-greet-world does on NestJS MCP Server Module

AI agents call public-greet-world to retrieve information from NestJS MCP Server Module without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why public-greet-world needs a policy

This tool has no capability to modify, execute code, delete data, or affect financial systems. It simply returns a static greeting message, making it a read-only operation with minimal security impact. The low severity reflects that misuse poses negligible risk.

From the tool's definition The tool 'public-greet-world' returns a simple Hello, World! message with no parameters or side effects mentioned. It is a pure read operation that retrieves/returns static data.

Attacks that exploit this kind of access

Questions about public-greet-world

What does the public-greet-world tool do? +

Returns a simple Hello, World! message. It is categorised as a Read tool in the NestJS MCP Server Module MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on public-greet-world? +

Register the NestJS MCP Server Module MCP server in PolicyLayer and add a rule for public-greet-world: 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 NestJS MCP Server Module. Nothing to install.

What risk level is public-greet-world? +

public-greet-world is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit public-greet-world? +

Yes. Add a rate_limit block to the public-greet-world 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.

How do I block public-greet-world completely? +

Set action: deny in the PolicyLayer policy for public-greet-world. 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.

What MCP server provides public-greet-world? +

public-greet-world is provided by the NestJS MCP Server Module MCP server (rekog-labs/mcp-nest). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.