planka_update_user_username

WHAT IT DOES

What planka_update_user_username does on Planka MCP Server for Claude

AI agents use planka_update_user_username to create or update resources in Planka MCP Server for Claude — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Planka MCP Server for Claude environment.

WHY IT NEEDS A POLICY

Why planka_update_user_username needs a policy

This tool updates user account metadata (username) in the Planka system. It is a Write operation because it modifies data reversibly—usernames can be changed again. Severity is medium because unauthorized username changes could cause account confusion, impersonation risks, or access disruption, but the change is not permanent/destructive and does not involve financial impact.

From the tool's definition Tool name 'planka_update_user_username' and description 'Update a user username' directly indicate modification of user account data. The verb 'update' confirms this is a write operation that modifies existing data reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

planka_update_user_username Rate-limited

planka_update_user_username 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": {
    "planka_update_user_username": {
      "limits": [
        {
          "counter": "planka_update_user_username_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 Planka MCP Server for Claude, so you can run agents against it safely.

FAQ

Questions about planka_update_user_username

What does the planka_update_user_username tool do? +

Update a user username. It is categorised as a Write tool in the Planka MCP Server for Claude MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on planka_update_user_username? +

Register the Planka MCP Server for Claude MCP server in PolicyLayer and add a rule for planka_update_user_username: 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 Planka MCP Server for Claude. Nothing to install.

What risk level is planka_update_user_username? +

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

Can I rate-limit planka_update_user_username? +

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

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

planka_update_user_username is provided by the Planka MCP Server for Claude MCP server (nextheberg/planka-mcp-server-for-claude). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.