refmd-restore-snapshot · RefMD MCP Server MCP: Risk & Policy

WHAT IT DOES

What refmd-restore-snapshot does on RefMD MCP Server

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

WHY IT NEEDS A POLICY

Why refmd-restore-snapshot needs a policy

The tool modifies document state by reverting it to a previous version. While this is technically reversible (one could restore to a different snapshot), the immediate effect is to destructively overwrite the current document contents with archived data. However, since snapshots typically preserve history and allow restoration to other states, this is classified as Write rather than Destructive.

From the tool's definition Tool name 'refmd-restore-snapshot' and description 'Restore a document from a snapshot' indicate the tool overwrites the current state of a document by restoring it from a prior snapshot.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

refmd-restore-snapshot Rate-limited

refmd-restore-snapshot 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": {
    "refmd-restore-snapshot": {
      "limits": [
        {
          "counter": "refmd-restore-snapshot_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 RefMD MCP Server, so you can run agents against it safely.

FAQ

Questions about refmd-restore-snapshot

What does the refmd-restore-snapshot tool do? +

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

How do I enforce a policy on refmd-restore-snapshot? +

Register the RefMD MCP Server MCP server in PolicyLayer and add a rule for refmd-restore-snapshot: 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 RefMD MCP Server. Nothing to install.

What risk level is refmd-restore-snapshot? +

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

Can I rate-limit refmd-restore-snapshot? +

Yes. Add a rate_limit block to the refmd-restore-snapshot 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 refmd-restore-snapshot completely? +

Set action: deny in the PolicyLayer policy for refmd-restore-snapshot. 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 refmd-restore-snapshot? +

refmd-restore-snapshot is provided by the RefMD MCP Server MCP server (refmdio/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.