resend_webhook · Terra Config MCP Server MCP: Risk & Policy

WHAT IT DOES

What resend_webhook does on Terra Config MCP Server

AI agents invoke resend_webhook to trigger actions in Terra Config MCP Server. 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 resend_webhook needs a policy

Resending a webhook typically triggers an external HTTP request/callback to a configured endpoint, which is an external operation (Execute category). However, with no description available, confidence is low. It is not clearly destructive, financial, or a simple read/write, so Execute is the most likely category given the name implies firing an outbound event.

From the tool's definition Tool name 'resend_webhook' suggests triggering an external HTTP operation (webhook delivery), but the description is empty and uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

resend_webhook Rate-limited

resend_webhook 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": {
    "resend_webhook": {
      "limits": [
        {
          "counter": "resend_webhook_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 Terra Config MCP Server, so you can run agents against it safely.

FAQ

Questions about resend_webhook

What does the resend_webhook tool do? +

resend_webhook. It is categorised as a Execute tool in the Terra Config MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on resend_webhook? +

Register the Terra Config MCP Server MCP server in PolicyLayer and add a rule for resend_webhook: 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 Terra Config MCP Server. Nothing to install.

What risk level is resend_webhook? +

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

Can I rate-limit resend_webhook? +

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

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

resend_webhook is provided by the Terra Config MCP Server MCP server (tryterra/terramcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.