send_mms · SOLAPI MCP Server MCP: Risk & Policy

WHAT IT DOES

What send_mms does on SOLAPI MCP Server

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

WHY IT NEEDS A POLICY

Why send_mms needs a policy

This tool creates and sends messages, which is a write operation that modifies external state (message delivery to recipients). While it has side effects, the action is not destructive (messages can be resent or content revised), not financial (no money moves), and not code execution. The safety guard requiring confirmed=true mitigates risk but does not change the category.

From the tool's definition Tool description states 'Send an MMS (image-attached) message via SOLAPI' and 'requires confirmed=true to actually send', indicating it creates/transmits messages (reversible communication action, not destructive or financial).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

send_mms Rate-limited

send_mms 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_mms": {
      "limits": [
        {
          "counter": "send_mms_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 SOLAPI MCP Server, so you can run agents against it safely.

FAQ

Questions about send_mms

What does the send_mms tool do? +

Send an MMS (image-attached) message via SOLAPI. Requires a local image file path. SAFETY: requires confirmed=true to actually send. It is categorised as a Write tool in the SOLAPI 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_mms? +

Register the SOLAPI MCP Server MCP server in PolicyLayer and add a rule for send_mms: 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 SOLAPI MCP Server. Nothing to install.

What risk level is send_mms? +

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

Can I rate-limit send_mms? +

Yes. Add a rate_limit block to the send_mms 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_mms completely? +

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

send_mms is provided by the SOLAPI MCP Server MCP server (solapi/solapi-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.