memvid_export · Memvid MCP: Risk & Policy

WHAT IT DOES

What memvid_export does on Memvid

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

WHY IT NEEDS A POLICY

Why memvid_export needs a policy

This tool reads memory data and writes it to an output file in a specified format. It creates a new file on disk (Write), but does not delete or modify the source memory file. Misuse could expose sensitive memory data to unintended locations, giving it medium severity.

From the tool's definition Export memory data to JSON, CSV, or JSONL format... Output file path

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

memvid_export Rate-limited

memvid_export 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": {
    "memvid_export": {
      "limits": [
        {
          "counter": "memvid_export_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 Memvid, so you can run agents against it safely.

FAQ

Questions about memvid_export

What does the memvid_export tool do? +

Export memory data to JSON, CSV, or JSONL format. Args: file: Path to the .mv2 memory file output: Output file path format: Export format (json, csv, jsonl) frame_ids: Export only specific frame IDs (optional) Returns: Export status and output file path. It is categorised as a Write tool in the Memvid MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on memvid_export? +

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

What risk level is memvid_export? +

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

Can I rate-limit memvid_export? +

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

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

memvid_export is provided by the Memvid MCP server (tapiocapioca/memvid-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.