vikunja_update_project · Vikunja MCP: Risk & Policy

WHAT IT DOES

What vikunja_update_project does on Vikunja

AI agents use vikunja_update_project 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_update_project needs a policy

This tool creates or modifies data reversibly by updating an existing project's properties (name, description, settings, etc.). Updates can be undone by changing the values back, placing it squarely in the Write category.

From the tool's definition Tool name 'vikunja_update_project' and description 'Update an existing Vikunja project' indicate modification of data. The operation modifies project metadata or state but does not create new entities or irreversibly delete data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

vikunja_update_project Rate-limited

vikunja_update_project 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_update_project": {
      "limits": [
        {
          "counter": "vikunja_update_project_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_update_project

What does the vikunja_update_project tool do? +

Update an existing Vikunja project. 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_update_project? +

Register the Vikunja MCP server in PolicyLayer and add a rule for vikunja_update_project: 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_update_project? +

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

Can I rate-limit vikunja_update_project? +

Yes. Add a rate_limit block to the vikunja_update_project 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_update_project completely? +

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

vikunja_update_project 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.