undo_preview

Dry-run for undo_mutation: shows exactly what a receipt-driven revert WOULD do (diff of

SERVERSpotify SOURCE@novalux12/spotify-mcp

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/novalux12-spotify-mcp/undo-preview.md

WHAT IT DOES

What undo_preview does on Spotify

AI agents invoke undo_preview to trigger actions in Spotify. 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.

RISK

Why undo_preview is rated High

undo_preview triggers real processes with real consequences. An agent gone sideways doesn't fire it once. It starts dozens of builds, sends mass notifications, or burns through compute before anyone looks up.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs undo_preview safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Spotify, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For undo_preview, this is the rule to start with:

undo_preview Rate-limited

undo_preview 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": {
    "undo_preview": {
      "limits": [
        {
          "counter": "undo_preview_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Spotify, apply this rule, and every undo_preview call is checked against it from then on.

FAQ

Questions about undo_preview

What does the undo_preview tool do? +

Dry-run for undo_mutation: shows exactly what a receipt-driven revert WOULD do (diff of. It is categorised as a Execute tool in the Spotify MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on undo_preview? +

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

What risk level is undo_preview? +

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

Can I rate-limit undo_preview? +

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

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

undo_preview is provided by the Spotify MCP server (@novalux12/spotify-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Spotify, and thousands of servers like it.

This server

All 544 Spotify tools → High-risk tools on this server →

Across the catalogue

All high-risk MCP tools → The MCP Attack Database →

Guides

Govern code and CI agents →Agent sandbox →Least privilege for MCP →