modify_guild · Discord MCP Server MCP: Risk & Policy

WHAT IT DOES

What modify_guild does on Discord MCP Server

AI agents use modify_guild 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.

WHY IT NEEDS A POLICY

Why modify_guild needs a policy

The tool updates (modifies) Discord server configuration, which is a reversible Write operation. It does not execute arbitrary code (Execute), delete data permanently (Destructive), or move money (Financial).

From the tool's definition Tool name 'modify_guild' and description 'Update a Discord server' indicate modification of server configuration data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

modify_guild Rate-limited

modify_guild 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": {
    "modify_guild": {
      "limits": [
        {
          "counter": "modify_guild_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Discord MCP Server, so you can run agents against it safely.

FAQ

Questions about modify_guild

What does the modify_guild tool do? +

Update a Discord server. 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 modify_guild? +

Register the Discord MCP Server MCP server in PolicyLayer and add a rule for modify_guild: 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 modify_guild? +

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

Can I rate-limit modify_guild? +

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

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

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