memos_remember · Memos MCP: Risk & Policy

WHAT IT DOES

What memos_remember does on Memos

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

WHY IT NEEDS A POLICY

Why memos_remember needs a policy

The name 'memos_remember' strongly implies storing/writing a note or piece of information into the knowledge base. The server description confirms the server's purpose is storing notes. With no tool description, confidence is reduced, but the most likely action is a Write (create/store a memo). Severity is medium because an AI agent could write arbitrary content into a shared knowledge base used by other AI agents.

From the tool's definition Tool name 'memos_remember' combined with server description 'enabling notes from editors to be stored in the same knowledge base'. No tool description provided.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

memos_remember Rate-limited

memos_remember 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": {
    "memos_remember": {
      "limits": [
        {
          "counter": "memos_remember_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 Memos, so you can run agents against it safely.

FAQ

Questions about memos_remember

What does the memos_remember tool do? +

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

How do I enforce a policy on memos_remember? +

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

What risk level is memos_remember? +

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

Can I rate-limit memos_remember? +

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

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

memos_remember is provided by the Memos MCP server (mchosc/memos-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.