bulk_assign_role · Discord MCP Server MCP: Risk & Policy

WHAT IT DOES

What bulk_assign_role does on Discord MCP Server

AI agents use bulk_assign_role 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 bulk_assign_role needs a policy

This tool creates or modifies role assignments for multiple Discord members, which is a reversible write operation. While it affects many members at once (high blast radius if misused by an AI agent to grant inappropriate permissions like admin roles), it does not delete data, execute arbitrary code, or move money. The 'bulk' nature and multi-member impact elevates severity to high rather than medium.

From the tool's definition Tool name 'bulk_assign_role' and description 'Assign a role to multiple members at once' indicates modification of member data by assigning roles.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

bulk_assign_role Rate-limited

bulk_assign_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": {
    "bulk_assign_role": {
      "limits": [
        {
          "counter": "bulk_assign_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 MCP Server, so you can run agents against it safely.

FAQ

Questions about bulk_assign_role

What does the bulk_assign_role tool do? +

Assign a role to multiple members at once. Processes members sequentially to respect rate limits. 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 bulk_assign_role? +

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

What risk level is bulk_assign_role? +

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

Can I rate-limit bulk_assign_role? +

Yes. Add a rate_limit block to the bulk_assign_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 bulk_assign_role completely? +

Set action: deny in the PolicyLayer policy for bulk_assign_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 bulk_assign_role? +

bulk_assign_role 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.