update_contact_address · Sevdesk MCP: Risk & Policy

WHAT IT DOES

What update_contact_address does on Sevdesk

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

WHY IT NEEDS A POLICY

Why update_contact_address needs a policy

The tool modifies existing contact address data, which is a Write operation—creating or modifying data reversibly. It is not Destructive (no deletion), Execute (no code execution), Financial (no money movement), or Read (causes side effects).

From the tool's definition Tool name 'update_contact_address' and description 'Update an existing contact address' indicate modification of existing data. This is a reversible write operation on contact address records in the sevdesk accounting system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_contact_address Rate-limited

update_contact_address 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": {
    "update_contact_address": {
      "limits": [
        {
          "counter": "update_contact_address_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 Sevdesk, so you can run agents against it safely.

FAQ

Questions about update_contact_address

What does the update_contact_address tool do? +

Update an existing contact address. It is categorised as a Write tool in the Sevdesk MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_contact_address? +

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

What risk level is update_contact_address? +

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

Can I rate-limit update_contact_address? +

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

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

update_contact_address is provided by the Sevdesk MCP server (codestra/sevdesk-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.