memorize_memory_tool · Memory MCP: Risk & Policy

WHAT IT DOES

What memorize_memory_tool does on Memory MCP

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

WHY IT NEEDS A POLICY

Why memorize_memory_tool needs a policy

This tool creates or modifies memory data in persistent storage (Markdown files). It is reversible (memories can be updated/overwritten, and the server context suggests LLM-controlled creation/update logic rather than permanent deletion). This qualifies as Write rather than Destructive.

From the tool's definition Tool name 'memorize_memory_tool' and description '记住一些内容' (remember some content) indicate the tool stores or persists data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

memorize_memory_tool Rate-limited

memorize_memory_tool 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": {
    "memorize_memory_tool": {
      "limits": [
        {
          "counter": "memorize_memory_tool_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 Memory MCP, so you can run agents against it safely.

FAQ

Questions about memorize_memory_tool

What does the memorize_memory_tool tool do? +

记住一些内容. It is categorised as a Write tool in the Memory MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on memorize_memory_tool? +

Register the Memory MCP server in PolicyLayer and add a rule for memorize_memory_tool: 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 Memory MCP. Nothing to install.

What risk level is memorize_memory_tool? +

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

Can I rate-limit memorize_memory_tool? +

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

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

memorize_memory_tool is provided by the Memory MCP server (jerryzhongj/memory-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.