read_messages

SERVERGuildControl MCP SOURCEguildctl

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/app-lasers-guildcontrol-discord/read-messages.md

WHAT IT DOES

What read_messages does on GuildControl MCP

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

RISK

Why read_messages is rated Low

Tool retrieves messages from Discord with no modification, deletion, or execution capability.

From the tool's definition Read one bounded Discord message page from permitted guild channel, newest to oldest

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs read_messages safely

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

read_messages Allowed

read_messages 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": {
    "read_messages": {}
  }
}

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

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

FAQ

Questions about read_messages

What does the read_messages tool do? +

Read one bounded Discord message page from a permitted guild channel, newest to oldest according to Discord. Preserves structured fields and adds untrusted readable message, Text Display, and embed text with explicit notes for unsupported components. The complete result must fit the configured response budget; media is not downloaded. It is categorised as a Read tool in the GuildControl MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on read_messages? +

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

What risk level is read_messages? +

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

Can I rate-limit read_messages? +

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

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

read_messages is provided by the GuildControl MCP server (guildctl). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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