vikunja_create_label · Vikunja MCP: Risk & Policy

WHAT IT DOES

What vikunja_create_label does on Vikunja

AI agents use vikunja_create_label to create or update resources in Vikunja — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Vikunja environment.

WHY IT NEEDS A POLICY

Why vikunja_create_label needs a policy

Creating a new label is a reversible Write operation—it adds data to the system without permanent destruction or code execution. The impact is limited to label metadata creation within a task management context. Severity is medium because uncontrolled label creation could clutter the system or be used to spam/manipulate task organization, but the operation is straightforward and reversible (labels can be deleted).

From the tool's definition Tool name 'vikunja_create_label' and description 'Create a new label' indicate creation of new data in the Vikunja task management system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

vikunja_create_label Rate-limited

vikunja_create_label stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "vikunja_create_label": {
      "limits": [
        {
          "counter": "vikunja_create_label_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about vikunja_create_label

What does the vikunja_create_label tool do? +

Create a new label. It is categorised as a Write tool in the Vikunja MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on vikunja_create_label? +

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

What risk level is vikunja_create_label? +

vikunja_create_label is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit vikunja_create_label? +

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

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

vikunja_create_label is provided by the Vikunja MCP server (shichao402/vikunja-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.