fizzy_unwatch_card · Fizzy MCP Server MCP: Risk & Policy

WHAT IT DOES

What fizzy_unwatch_card does on Fizzy MCP Server

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

WHY IT NEEDS A POLICY

Why fizzy_unwatch_card needs a policy

This tool modifies a subscription/watch state for a card, removing the user from notification recipients. It is a reversible write operation (the user can re-subscribe at any time). No data is deleted, no code is executed, and there are no financial implications. Blast radius is low as it only affects notification preferences.

From the tool's definition Unsubscribe from notifications for a Fizzy card

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

fizzy_unwatch_card Rate-limited

fizzy_unwatch_card 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": {
    "fizzy_unwatch_card": {
      "limits": [
        {
          "counter": "fizzy_unwatch_card_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 Fizzy MCP Server, so you can run agents against it safely.

FAQ

Questions about fizzy_unwatch_card

What does the fizzy_unwatch_card tool do? +

Unsubscribe from notifications for a Fizzy card. It is categorised as a Write tool in the Fizzy 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 fizzy_unwatch_card? +

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

What risk level is fizzy_unwatch_card? +

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

Can I rate-limit fizzy_unwatch_card? +

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

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

fizzy_unwatch_card is provided by the Fizzy MCP Server MCP server (ryanyogan/fizzy-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.