restore_latest · Ppdm MCP: Risk & Policy

WHAT IT DOES

What restore_latest does on Ppdm

AI agents invoke restore_latest to trigger actions in Ppdm. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why restore_latest needs a policy

Restoring data to its original location is a highly destructive operation in practice: it overwrites whatever currently exists at the target location with backup data. While it is nominally a 'restore' (recovery) operation rather than a delete, it irreversibly overwrites live production data. It also triggers external backup infrastructure operations.

From the tool's definition 'Restore an asset to its original location from the most recent copy' — triggers a restore operation that overwrites existing data at the original location

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

restore_latest Rate-limited

restore_latest stays usable, but rate-capped — a runaway agent can't fire it dozens of times 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_latest": {
      "limits": [
        {
          "counter": "restore_latest_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Ppdm, so you can run agents against it safely.

FAQ

Questions about restore_latest

What does the restore_latest tool do? +

Restore an asset to its original location from the most recent copy — single call, no manual copy browsing needed. It is categorised as a Execute tool in the Ppdm MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on restore_latest? +

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

What risk level is restore_latest? +

restore_latest is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit restore_latest? +

Yes. Add a rate_limit block to the restore_latest 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_latest completely? +

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

restore_latest is provided by the Ppdm MCP server (moodswing9/ppdm-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.