create_microsoft_ads_customer_list

Create an EMPTY Customer Match list on a Microsoft Advertising account, ready for apply_microsoft_ads_customer_list to fill. membershipDuration is 1\u2013390 days, or -1 for no expiration (Microsoft

SERVERHermoso SOURCEhttps://app.hermoso.ai/mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/hermoso/create-microsoft-ads-customer-list.md

WHAT IT DOES

What create_microsoft_ads_customer_list does on Hermoso

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

RISK

Why create_microsoft_ads_customer_list is rated Medium

An AI agent can call create_microsoft_ads_customer_list faster than any human can review: one bad instruction and it creates or modifies resources in Hermoso by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_microsoft_ads_customer_list safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Hermoso, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_microsoft_ads_customer_list, this is the rule to start with:

create_microsoft_ads_customer_list Rate-limited

create_microsoft_ads_customer_list 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": {
    "create_microsoft_ads_customer_list": {
      "limits": [
        {
          "counter": "create_microsoft_ads_customer_list_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Hermoso, apply this rule, and every create_microsoft_ads_customer_list call is checked against it from then on.

FAQ

Questions about create_microsoft_ads_customer_list

What does the create_microsoft_ads_customer_list tool do? +

Create an EMPTY Customer Match list on a Microsoft Advertising account, ready for apply_microsoft_ads_customer_list to fill. membershipDuration is 1\u2013390 days, or -1 for no expiration (Microsoft. It is categorised as a Write tool in the Hermoso MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_microsoft_ads_customer_list? +

Register the Hermoso MCP server in PolicyLayer and add a rule for create_microsoft_ads_customer_list: 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 Hermoso. Nothing to install.

What risk level is create_microsoft_ads_customer_list? +

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

Can I rate-limit create_microsoft_ads_customer_list? +

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

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

create_microsoft_ads_customer_list is provided by the Hermoso MCP server (https://app.hermoso.ai/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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