unpin_memory · Mem0 Mcp Toggle MCP: Risk & Policy

WHAT IT DOES

What unpin_memory does on Mem0 Mcp Toggle

AI agents use unpin_memory 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 unpin_memory needs a policy

The tool modifies the pinned/core status of a memory (removing it from the CORE set) but does not delete the memory itself. The memory remains stored, making this a reversible modification — a Write operation. Blast radius is low since it only affects memory prioritization, not data integrity.

From the tool's definition Remove a memory from CORE (always-on) memory. The memory itself stays stored

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

unpin_memory Rate-limited

unpin_memory 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": {
    "unpin_memory": {
      "limits": [
        {
          "counter": "unpin_memory_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 unpin_memory

What does the unpin_memory tool do? +

Remove a memory from CORE (always-on) memory. The memory itself stays stored. 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 unpin_memory? +

Register the Mem0 Mcp Toggle MCP server in PolicyLayer and add a rule for unpin_memory: 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 unpin_memory? +

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

Can I rate-limit unpin_memory? +

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

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

unpin_memory 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.