discord.message.get

THE RISK

Low Risk

Why discord.message.get needs a policy

This tool retrieves message data from a Discord channel without modifying, deleting, or executing any actions. It is a straightforward read operation with minimal security risk—the impact is limited to information disclosure of already-accessible channel messages.

From the tool's definition Tool name 'discord.message.get' and description 'Get a single message from a Discord channel' indicate a retrieval operation with no side effects.

Documented attack patterns abuse exactly the kind of access discord.message.get gives an agent:

POLICY

How to control discord.message.get

PolicyLayer is an MCP gateway — it sits between your AI agents and Discord MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for discord.message.get:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "discord.message.get": {}
  }
}

discord.message.get is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Discord MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Discord MCP Server tools

All 45 Discord MCP Server tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about discord.message.get

What does the discord.message.get tool do? +

Get a single message from a Discord channel. It is categorised as a Read tool in the Discord MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on discord.message.get? +

Register the Discord MCP Server MCP server in PolicyLayer and add a rule for discord.message.get: 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.message.get? +

discord.message.get is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit discord.message.get? +

Yes. Add a rate_limit block to the discord.message.get 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.message.get completely? +

Set action: deny in the PolicyLayer policy for discord.message.get. 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.message.get? +

discord.message.get is provided by the Discord MCP Server MCP server (rastrian/discordmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Discord MCP Server tool call.

Start from Discord MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →