create_communication_way · Sevdesk MCP: Risk & Policy

WHAT IT DOES

What create_communication_way does on Sevdesk

AI agents use create_communication_way 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 create_communication_way needs a policy

This tool creates a new communication method (phone, email, etc.) associated with a contact in the sevdesk accounting system. It modifies contact data but does so reversibly and with no side effects beyond adding a new communication record. The blast radius is minimal—the worst outcome of misuse would be adding incorrect contact details, which can be corrected or removed.

From the tool's definition Tool name 'create_communication_way' and description 'Create a new communication way for a contact' indicate data creation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_communication_way Rate-limited

create_communication_way 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": {
    "create_communication_way": {
      "limits": [
        {
          "counter": "create_communication_way_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 create_communication_way

What does the create_communication_way tool do? +

Create a new communication way for a contact. 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 create_communication_way? +

Register the Sevdesk MCP server in PolicyLayer and add a rule for create_communication_way: 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 create_communication_way? +

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

Can I rate-limit create_communication_way? +

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

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

create_communication_way 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.