set_memory_type · Mem0 Mcp Toggle MCP: Risk & Policy

WHAT IT DOES

What set_memory_type does on Mem0 Mcp Toggle

AI agents use set_memory_type to create or update resources in Mem0 Mcp Toggle — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mem0 Mcp Toggle environment.

WHY IT NEEDS A POLICY

Why set_memory_type needs a policy

The tool appears to update metadata on stored memories rather than create or delete them. This is a Write operation (reversible modification). Severity is medium because incorrect memory type assignments could degrade AI agent reasoning or cause it to misclassify information, but the effect is localized to a single user's memory store without external blast radius.

From the tool's definition Tool name 'set_memory_type' indicates modification of an existing memory record's type attribute. The empty description prevents certainty, but context from sibling tools (add_memory, delete_memory, set_confidence, set_provenance) shows this server manages a…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_memory_type Rate-limited

set_memory_type 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": {
    "set_memory_type": {
      "limits": [
        {
          "counter": "set_memory_type_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 Mem0 Mcp Toggle, so you can run agents against it safely.

FAQ

Questions about set_memory_type

What does the set_memory_type tool do? +

set_memory_type. It is categorised as a Write tool in the Mem0 Mcp Toggle MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_memory_type? +

Register the Mem0 Mcp Toggle MCP server in PolicyLayer and add a rule for set_memory_type: 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 Mem0 Mcp Toggle. Nothing to install.

What risk level is set_memory_type? +

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

Can I rate-limit set_memory_type? +

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

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

set_memory_type is provided by the Mem0 Mcp Toggle MCP server (ost527/mem0-mcp-toggle). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.