servicebus_send · Mcp Azure Toolkit MCP: Risk & Policy

WHAT IT DOES

What servicebus_send does on Mcp Azure Toolkit

AI agents invoke servicebus_send to trigger actions in Mcp Azure Toolkit. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why servicebus_send needs a policy

Sending a message to a Service Bus queue is an external operation that triggers downstream consumers and workflows. It is not a simple data write within a contained system; it dispatches events or commands to other services. This fits Execute as it triggers external operations whose effects depend on the message content and recipients.

From the tool's definition 'Send a text message to a Service Bus queue' — triggers an external messaging operation that dispatches a message to an external system

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

servicebus_send Rate-limited

servicebus_send stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "servicebus_send": {
      "limits": [
        {
          "counter": "servicebus_send_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Mcp Azure Toolkit, so you can run agents against it safely.

FAQ

Questions about servicebus_send

What does the servicebus_send tool do? +

Send a text message to a Service Bus queue. It is categorised as a Execute tool in the Mcp Azure Toolkit MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on servicebus_send? +

Register the Mcp Azure Toolkit MCP server in PolicyLayer and add a rule for servicebus_send: 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 Mcp Azure Toolkit. Nothing to install.

What risk level is servicebus_send? +

servicebus_send is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit servicebus_send? +

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

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

servicebus_send is provided by the Mcp Azure Toolkit MCP server (temidireadesiji/mcp-azure-toolkit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.