rotate_webhook_secret · Rentalot MCP Server MCP

WHAT IT DOES

What rotate_webhook_secret does on Rentalot MCP Server

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

WHY IT NEEDS A POLICY

Why rotate_webhook_secret needs a policy

This tool modifies webhook authentication credentials, which is a reversible write operation that changes system configuration. Although credentials are sensitive, the operation itself is not destructive (the old secret continues working, and the new one can be managed), nor is it destructive deletion.

From the tool's definition The tool description explicitly states 'rotate the HMAC signing secret for a webhook subscription' and characterizes it as a 'Write operation'.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

rotate_webhook_secret Rate-limited

rotate_webhook_secret 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": {
    "rotate_webhook_secret": {
      "limits": [
        {
          "counter": "rotate_webhook_secret_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 Rentalot MCP Server, so you can run agents against it safely.

FAQ

Questions about rotate_webhook_secret

What does the rotate_webhook_secret tool do? +

Use to rotate the HMAC signing secret for a webhook subscription. The new secret is returned once and must be stored immediately — it cannot be retrieved again. Write operation — requires Pro tier or higher. It is categorised as a Write tool in the Rentalot 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 rotate_webhook_secret? +

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

What risk level is rotate_webhook_secret? +

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

Can I rate-limit rotate_webhook_secret? +

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

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

rotate_webhook_secret is provided by the Rentalot MCP Server MCP server (rentalot-ai/rentalot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.