meta_create_ad_rule

ServerMeta MCP Server
CategoryWrite

WHAT IT DOES

What meta_create_ad_rule does on Meta MCP Server

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

THE RISK

Medium Risk

Why meta_create_ad_rule needs a policy

This tool creates (write action) new automated rules within Meta's ad platform. While reversible (rules can be deleted/modified), it has high severity because misconfigured rules could cause unintended ad spend, targeting changes, or campaign modifications affecting financial outcomes. However, it does not directly commit money or delete data, so it is Write rather than Financial or Destructive.

From the tool's definition Tool name 'meta_create_ad_rule' and description 'Creates an automated rule for managing ads, ad sets, or campaigns' indicate a write operation that creates new configuration entities.

Documented attack patterns abuse exactly the kind of access meta_create_ad_rule gives an agent:

POLICY

How to control meta_create_ad_rule

PolicyLayer is an MCP gateway — it sits between your AI agents and Meta MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for meta_create_ad_rule:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "meta_create_ad_rule": {
      "limits": [
        {
          "counter": "meta_create_ad_rule_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

meta_create_ad_rule 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.

Create a free account and register Meta MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

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EXPLORE

Related tools and policies

More Meta MCP Server tools

Financial meta_create_adset Creates a new ad set within a campaign. Args: - ad_account_id (string): Ad account ID ( Financial meta_create_campaign Creates a new campaign in a Meta ad account. Args: - ad_account_id (string): Ad account Destructive meta_delete_ad Deletes an ad permanently. Args: - ad_id (string): Ad ID to delete Destructive meta_delete_ad_rule Deletes an automated ad rule. Args: - rule_id (string): Ad rule ID Destructive meta_delete_adset Deletes an ad set permanently. Args: - adset_id (string): Ad set ID to delete Destructive meta_delete_campaign Deletes (archives) a campaign. This cannot be undone. Args: - campaign_id (string): Cam Destructive meta_delete_comment Deletes a comment on a Facebook Page post. Permanent action. Args: - comment_id (string Destructive meta_delete_custom_audience Deletes a custom audience permanently. This cannot be undone. Args: - audience_id (stri

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Write tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about meta_create_ad_rule

What does the meta_create_ad_rule tool do? +

Creates an automated rule for managing ads, ad sets, or campaigns. Args: - ad_account_id (string): Ad account ID - name (string): Rule name - evaluation_spec (object): Conditions that trigger the rule (e.g., {. It is categorised as a Write tool in the Meta 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 meta_create_ad_rule? +

Register the Meta MCP Server MCP server in PolicyLayer and add a rule for meta_create_ad_rule: 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 Meta MCP Server. Nothing to install.

What risk level is meta_create_ad_rule? +

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

Can I rate-limit meta_create_ad_rule? +

Yes. Add a rate_limit block to the meta_create_ad_rule 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_create_ad_rule completely? +

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

meta_create_ad_rule is provided by the Meta MCP Server MCP server (oliverames/meta-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Meta MCP Server tool call.

Start from Meta MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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