meta_set_away_message

ServerMeta MCP Server
CategoryWrite

WHAT IT DOES

What meta_set_away_message does on Meta MCP Server

AI agents use meta_set_away_message 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_set_away_message needs a policy

This tool creates or modifies page configuration data (away message and enabled state) without permanently deleting anything or executing arbitrary code. The impact is scoped to a single page's messaging settings. Severity is medium because misuse could alter customer-facing communications on a public Facebook Page, potentially causing business disruption or reputation harm, but the change is easily reversible.

From the tool's definition Tool description states it 'Sets the away message for a Facebook Page' — a modification operation. The args include 'message' (content to be written) and 'enabled' (state to be modified). This is a reversible change that modifies page settings.

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

POLICY

How to control meta_set_away_message

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_set_away_message:

policy.json

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

meta_set_away_message 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.

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EXPLORE

Related tools and policies

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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_set_away_message

What does the meta_set_away_message tool do? +

Sets the away message for a Facebook Page. This is shown when the page is set to away mode. Requires: meta_list_pages called first to load page tokens. Args: - page_id (string): Facebook Page ID - message (string): The away message text - enabled (boolean, default true): Whether away mode is enabled. 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_set_away_message? +

Register the Meta MCP Server MCP server in PolicyLayer and add a rule for meta_set_away_message: 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_set_away_message? +

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

Can I rate-limit meta_set_away_message? +

Yes. Add a rate_limit block to the meta_set_away_message 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_set_away_message completely? +

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

meta_set_away_message 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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