send_first_response · Service Desk Plus MCP Server MCP

WHAT IT DOES

What send_first_response does on Service Desk Plus MCP Server

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

WHY IT NEEDS A POLICY

Why send_first_response needs a policy

This tool writes/modifies data (marks request status) and sends email, but does not execute arbitrary code, delete data, or move money. The email sending is a reversible write operation in the service desk context.

From the tool's definition Send the first response to a requester (marks as first response and sends email) — this operation modifies request state by marking it as having a first response sent and triggers email communication, both reversible side effects.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

send_first_response Rate-limited

send_first_response 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": {
    "send_first_response": {
      "limits": [
        {
          "counter": "send_first_response_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 Service Desk Plus MCP Server, so you can run agents against it safely.

FAQ

Questions about send_first_response

What does the send_first_response tool do? +

Send the first response to a requester (marks as first response and sends email). It is categorised as a Write tool in the Service Desk Plus MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on send_first_response? +

Register the Service Desk Plus MCP Server MCP server in PolicyLayer and add a rule for send_first_response: 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 Service Desk Plus MCP Server. Nothing to install.

What risk level is send_first_response? +

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

Can I rate-limit send_first_response? +

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

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

send_first_response is provided by the Service Desk Plus MCP Server MCP server (pttg-it/sdp-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.