discord_fetch_message

Fetch a specific message in a channel

SERVERDiscord SOURCEarrrnmp/discord-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/arrrnmp-discord-mcp/discord-fetch-message.md

WHAT IT DOES

What discord_fetch_message does on Discord

AI agents call discord_fetch_message to retrieve information from Discord without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why discord_fetch_message is rated Low

This tool retrieves an existing message from Discord without modifying, deleting, or executing anything. It is a pure read operation with minimal blast radius if misused by an AI agent, as it only accesses data that already exists.

From the tool's definition Tool name is 'discord_fetch_message' and description states 'Fetch a specific message in a channel' — fetch is a retrieval operation with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs discord_fetch_message safely

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

discord_fetch_message Allowed

discord_fetch_message is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "discord_fetch_message": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about discord_fetch_message

What does the discord_fetch_message tool do? +

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

How do I enforce a policy on discord_fetch_message? +

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

What risk level is discord_fetch_message? +

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

Can I rate-limit discord_fetch_message? +

Yes. Add a rate_limit block to the discord_fetch_message 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_fetch_message completely? +

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

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

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