meta_ads_audiences_create

Creates a Custom Audience in a Meta Ads account. Returns the

SERVERMureo SOURCElogly/mureo

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/logly-mureo/meta-ads-audiences-create.md

WHAT IT DOES

What meta_ads_audiences_create does on Mureo

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

RISK

Why meta_ads_audiences_create is rated Medium

The tool creates new resources (Custom Audiences) in a Meta Ads account, which is a reversible write operation. Severity is high because misuse could create unwanted audience segments that target inappropriate populations or waste ad spend, though the action itself can be undone by deletion. The tool operates on financial/marketing infrastructure (ad platforms), amplifying risk.

From the tool's definition Tool name explicitly contains 'create' and description states 'Creates a Custom Audience in a Meta Ads account'. This is a data creation/modification action.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs meta_ads_audiences_create safely

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

meta_ads_audiences_create Rate-limited

meta_ads_audiences_create 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": {
    "meta_ads_audiences_create": {
      "limits": [
        {
          "counter": "meta_ads_audiences_create_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 Mureo, apply this rule, and every meta_ads_audiences_create call is checked against it from then on.

FAQ

Questions about meta_ads_audiences_create

What does the meta_ads_audiences_create tool do? +

Creates a Custom Audience in a Meta Ads account. Returns the. It is categorised as a Write tool in the Mureo MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on meta_ads_audiences_create? +

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

What risk level is meta_ads_audiences_create? +

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

Can I rate-limit meta_ads_audiences_create? +

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

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

meta_ads_audiences_create is provided by the Mureo MCP server (logly/mureo). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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