send_messages_to_object

THE RISK

High Risk

Sending messages to objects in a Max patch can trigger execution of code, signal processing, or other operations depending on the target object and message content. Given the sibling tools (add, connect, disconnect, remove objects), this server manipulates live Max patches. The most severe applicable category for sending messages that trigger behavior is Execute. Low confidence due to empty description.

From the tool's definition Tool name 'send_messages_to_object' implies triggering operations on Max patch objects; description is empty and uninformative.

Documented attack patterns abuse exactly the kind of access send_messages_to_object gives an agent:

HOW TO CONTROL SEND_MESSAGES_TO_OBJECT

PolicyLayer is an MCP gateway — it sits between your AI agents and MaxMSP-MCP-Server, and nothing reaches the server without passing your rules. This is the rule we recommend for send_messages_to_object:

policy.json

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

send_messages_to_object 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.

Create a free account and register MaxMSP-MCP-Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

More MaxMSP-MCP-Server tools

Destructive remove_max_object Delete a Max object. Args: varname (str): Variable name for the object. Execute send_bang_to_object Send a bang to an object in MaxMSP. Args: varname (str): Variable name of the Write add_max_object add_max_object Write connect_max_objects Connect two Max objects. Args: src_varname (str): Variable name of the source Write disconnect_max_objects Disconnect two Max objects. Args: src_varname (str): Variable name of the sou Write set_message_text Set the text of a message object in MaxMSP. Args: varname (str): Variable nam Write set_number Set the value of a object in MaxMSP. The object can be a number box, a slider, a dial, Write set_object_attribute Set an attribute of a Max object. Args: varname (str): Variable name of the o

All 15 MaxMSP-MCP-Server tools →

Execute tools on other servers

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Go deeper

High-risk tools in MaxMSP-MCP-Server → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

What does the send_messages_to_object tool do? +

send_messages_to_object. It is categorised as a Execute tool in the MaxMSP-MCP-Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on send_messages_to_object? +

Register the MaxMSP-MCP-Server MCP server in PolicyLayer and add a rule for send_messages_to_object: 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 MaxMSP-MCP-Server. Nothing to install.

What risk level is send_messages_to_object? +

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

Can I rate-limit send_messages_to_object? +

Yes. Add a rate_limit block to the send_messages_to_object 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_messages_to_object completely? +

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

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

Enforce policy on every MaxMSP-MCP-Server tool call.

Deterministic rules across all 15 MaxMSP-MCP-Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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15 MaxMSP-MCP-Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

// WHAT SEND_MESSAGES_TO_OBJECT ON MAXMSP-MCP-SERVER DOES

// THE RISK

// HOW TO CONTROL SEND_MESSAGES_TO_OBJECT

// EXPLORE