bulk-update-permissions · Mcp Mailtrap MCP: Risk & Policy

WHAT IT DOES

What bulk-update-permissions does on Mcp Mailtrap

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

WHY IT NEEDS A POLICY

Why bulk-update-permissions needs a policy

This tool manages account permissions in bulk — creating, updating, or destroying access controls. While 'destroy' is mentioned, the primary framing is around updating and creating permissions, and permission changes are generally reversible (permissions can be re-granted or re-revoked).

From the tool's definition Bulk create, update, or destroy permissions for an account access. Existing (resource_type, resource_id) pairs are updated; new ones are created.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

bulk-update-permissions Rate-limited

bulk-update-permissions 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-update-permissions": {
      "limits": [
        {
          "counter": "bulk-update-permissions_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 Mcp Mailtrap, so you can run agents against it safely.

FAQ

Questions about bulk-update-permissions

What does the bulk-update-permissions tool do? +

Bulk create, update, or destroy permissions for an account access. Existing (resource_type, resource_id) pairs are updated; new ones are created. Set. It is categorised as a Write tool in the Mcp Mailtrap 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-update-permissions? +

Register the Mcp Mailtrap MCP server in PolicyLayer and add a rule for bulk-update-permissions: 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 Mcp Mailtrap. Nothing to install.

What risk level is bulk-update-permissions? +

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

Can I rate-limit bulk-update-permissions? +

Yes. Add a rate_limit block to the bulk-update-permissions 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-update-permissions completely? +

Set action: deny in the PolicyLayer policy for bulk-update-permissions. 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-update-permissions? +

bulk-update-permissions is provided by the Mcp Mailtrap MCP server (mcp-mailtrap). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.