remove_role · Discord MCP: Risk & Policy

WHAT IT DOES

What remove_role does on Discord

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

WHY IT NEEDS A POLICY

Why remove_role needs a policy

Removing a role is a reversible modification to a user's permissions/attributes — the role can be reassigned at any time. This is a Write operation (modifying user state), not Destructive since the role itself is not deleted and the action is easily undone. Misuse could revoke permissions or access from legitimate users, warranting medium severity.

From the tool's definition Remove a role from a user in a Discord server

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

remove_role Rate-limited

remove_role 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": {
    "remove_role": {
      "limits": [
        {
          "counter": "remove_role_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, so you can run agents against it safely.

FAQ

Questions about remove_role

What does the remove_role tool do? +

Remove a role from a user in a Discord server. It is categorised as a Write tool in the Discord MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on remove_role? +

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

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

Can I rate-limit remove_role? +

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

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

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