discord_webhook_execute

Execute a webhook by id+token to post content and/or embeds.

SERVERDiscord MCP Server SOURCEbennettschwartz/discord-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/bennettschwartz-discord-mcp/discord-webhook-execute.md

WHAT IT DOES

What discord_webhook_execute does on Discord MCP Server

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

RISK

Why discord_webhook_execute is rated Medium

This tool posts messages to a Discord channel via a webhook. It creates new content (messages/embeds) in a channel, which is a reversible write operation. While messages can be deleted afterward, the act of posting itself is a write. Misuse could allow spam or impersonation via webhooks, giving it medium severity.

From the tool's definition Execute a webhook by id+token to post content and/or embeds

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs discord_webhook_execute safely

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

discord_webhook_execute Rate-limited

discord_webhook_execute 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": {
    "discord_webhook_execute": {
      "limits": [
        {
          "counter": "discord_webhook_execute_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Discord MCP Server, apply this rule, and every discord_webhook_execute call is checked against it from then on.

FAQ

Questions about discord_webhook_execute

What does the discord_webhook_execute tool do? +

Execute a webhook by id+token to post content and/or embeds. It is categorised as a Write tool in the Discord 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 discord_webhook_execute? +

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

What risk level is discord_webhook_execute? +

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

Can I rate-limit discord_webhook_execute? +

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

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

discord_webhook_execute is provided by the Discord MCP Server MCP server (bennettschwartz/discord-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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Govern customer-ops agents →Argument validation →Scoped token →