restore_version · PromptingBox MCP Server MCP: Risk & Policy

WHAT IT DOES

What restore_version does on PromptingBox MCP Server

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

WHY IT NEEDS A POLICY

Why restore_version needs a policy

While restoration might seem reversible, it creates a new version entry and modifies the prompt's current state, which is a write operation. It is not destructive because the original versions remain intact and accessible.

From the tool's definition The tool description explicitly states 'Restore a prompt to a previous version. Creates a new version with the restored content.' This is a modification operation that writes/updates prompt data by reverting to and saving a previous state as a new version.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

restore_version Rate-limited

restore_version 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": {
    "restore_version": {
      "limits": [
        {
          "counter": "restore_version_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 PromptingBox MCP Server, so you can run agents against it safely.

FAQ

Questions about restore_version

What does the restore_version tool do? +

Restore a prompt to a previous version. Creates a new version with the restored content. It is categorised as a Write tool in the PromptingBox 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 restore_version? +

Register the PromptingBox MCP Server MCP server in PolicyLayer and add a rule for restore_version: 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 PromptingBox MCP Server. Nothing to install.

What risk level is restore_version? +

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

Can I rate-limit restore_version? +

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

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

restore_version is provided by the PromptingBox MCP Server MCP server (promptingbox/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.