add_to_blacklist · Reservation Platform MCP Server MCP

WHAT IT DOES

What add_to_blacklist does on Reservation Platform MCP Server

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

WHY IT NEEDS A POLICY

Why add_to_blacklist needs a policy

This tool creates or modifies blacklist records by adding customers, which is a reversible write operation. While it affects customer access/privileges, it does not permanently delete data or move money. The severity is high because misuse could harm customer relationships and business operations by incorrectly blocking legitimate customers, but it is reversible (customers can be removed from blacklists).

From the tool's definition Tool name 'add_to_blacklist' and description '고객을 블랙리스트에 추가합니다' (translates to 'Adds a customer to the blacklist') indicates creation/modification of customer blacklist records.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_to_blacklist Rate-limited

add_to_blacklist 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": {
    "add_to_blacklist": {
      "limits": [
        {
          "counter": "add_to_blacklist_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 Reservation Platform MCP Server, so you can run agents against it safely.

FAQ

Questions about add_to_blacklist

What does the add_to_blacklist tool do? +

고객을 블랙리스트에 추가합니다. It is categorised as a Write tool in the Reservation Platform 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 add_to_blacklist? +

Register the Reservation Platform MCP Server MCP server in PolicyLayer and add a rule for add_to_blacklist: 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 Reservation Platform MCP Server. Nothing to install.

What risk level is add_to_blacklist? +

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

Can I rate-limit add_to_blacklist? +

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

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

add_to_blacklist is provided by the Reservation Platform MCP Server MCP server (pak3430/reservation-platform-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.