hello · Vikunja MCP Server MCP: Risk & Policy

WHAT IT DOES

What hello does on Vikunja MCP Server

AI agents call hello as a supporting operation in Vikunja MCP Server workflows.

WHY IT NEEDS A POLICY

Why hello needs a policy

This tool simply returns a greeting message with no side effects, no data retrieval, no modifications, and no external operations. It is a diagnostic/test endpoint that does nothing consequential.

From the tool's definition Says hello world

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

hello Rate-limited

hello gets a rate cap, and everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "hello": {
      "limits": [
        {
          "counter": "hello_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

SET A RULE FOR THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Vikunja MCP Server, so you can run agents against it safely.

FAQ

Questions about hello

What does the hello tool do? +

Says hello world. It is categorised as a Other tool in the Vikunja MCP Server MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on hello? +

Register the Vikunja MCP Server MCP server in PolicyLayer and add a rule for hello: 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 Vikunja MCP Server. Nothing to install.

What risk level is hello? +

hello is a Other tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit hello? +

Yes. Add a rate_limit block to the hello 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 hello completely? +

Set action: deny in the PolicyLayer policy for hello. 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 hello? +

hello is provided by the Vikunja MCP Server MCP server (wosh-i/vikunja-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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