test_webhook

Send a test event to a webhook to verify it works. REQUIRES AGENT KEY.

SERVERLightning Wallet SOURCElightning-wallet-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/io-github-lightningfaucet-lightning-wallet-mcp/test-webhook.md

WHAT IT DOES

What test_webhook does on Lightning Wallet

AI agents invoke test_webhook to trigger actions in Lightning Wallet. 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 test_webhook is rated High

This tool sends a test event to an external webhook, which constitutes triggering an external operation. While it is described as a 'test' event, it still makes an outbound network call to an external system, which could have side effects depending on what the webhook endpoint does. It is not purely read-only, nor is it financial or destructive by itself, but it executes an external operation.

From the tool's definition 'Send a test event to a webhook to verify it works' — triggers an external HTTP request/operation to a configured webhook endpoint

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs test_webhook safely

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

test_webhook Rate-limited

test_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": {
    "test_webhook": {
      "limits": [
        {
          "counter": "test_webhook_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 Lightning Wallet, apply this rule, and every test_webhook call is checked against it from then on.

FAQ

Questions about test_webhook

What does the test_webhook tool do? +

Send a test event to a webhook to verify it works. REQUIRES AGENT KEY. It is categorised as a Execute tool in the Lightning Wallet MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on test_webhook? +

Register the Lightning Wallet MCP server in PolicyLayer and add a rule for test_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 Lightning Wallet. Nothing to install.

What risk level is test_webhook? +

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

Can I rate-limit test_webhook? +

Yes. Add a rate_limit block to the test_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 test_webhook completely? +

Set action: deny in the PolicyLayer policy for test_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 test_webhook? +

test_webhook is provided by the Lightning Wallet MCP server (lightning-wallet-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Lightning Wallet, and thousands of servers like it.

This server

All 45 Lightning Wallet tools → High-risk tools on this server →

Across the catalogue

execute_test_case on Percepta MCP Server → All high-risk MCP tools → The MCP Attack Database →

Guides

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