update_pet_with_form · Petstore MCP Server MCP

WHAT IT DOES

What update_pet_with_form does on Petstore MCP Server

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

WHY IT NEEDS A POLICY

Why update_pet_with_form needs a policy

This tool creates or modifies data reversibly by updating pet records. It does not delete data (which would be Destructive), does not execute arbitrary code (which would be Execute), and does not involve financial transactions. The 'update' operation is characteristic of Write category tools.

From the tool's definition Tool name 'update_pet_with_form' combined with description 'Update a pet in the store with form data' explicitly indicates modification of existing data via form submission.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_pet_with_form Rate-limited

update_pet_with_form 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": {
    "update_pet_with_form": {
      "limits": [
        {
          "counter": "update_pet_with_form_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 Petstore MCP Server, so you can run agents against it safely.

FAQ

Questions about update_pet_with_form

What does the update_pet_with_form tool do? +

Update a pet in the store with form data. It is categorised as a Write tool in the Petstore 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 update_pet_with_form? +

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

What risk level is update_pet_with_form? +

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

Can I rate-limit update_pet_with_form? +

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

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

update_pet_with_form is provided by the Petstore MCP Server MCP server (raghavendraprakash/mcpforrestapis). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.