reply_to_meta_message

Send a text reply to someone who has messaged the brand. THIS REACHES A REAL PERSON — show the user the exact text and who it goes to, get a yes, then send. Pass

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/reply-to-meta-message.md

WHAT IT DOES

What reply_to_meta_message does on Hermoso

AI agents use reply_to_meta_message 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 reply_to_meta_message is rated Medium

An AI agent can call reply_to_meta_message 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 reply_to_meta_message 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 reply_to_meta_message, this is the rule to start with:

reply_to_meta_message Rate-limited

reply_to_meta_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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "reply_to_meta_message": {
      "limits": [
        {
          "counter": "reply_to_meta_message_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 reply_to_meta_message call is checked against it from then on.

FAQ

Questions about reply_to_meta_message

What does the reply_to_meta_message tool do? +

Send a text reply to someone who has messaged the brand. THIS REACHES A REAL PERSON — show the user the exact text and who it goes to, get a yes, then send. Pass. 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 reply_to_meta_message? +

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

What risk level is reply_to_meta_message? +

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

Can I rate-limit reply_to_meta_message? +

Yes. Add a rate_limit block to the reply_to_meta_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 reply_to_meta_message completely? +

Set action: deny in the PolicyLayer policy for reply_to_meta_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 reply_to_meta_message? +

reply_to_meta_message 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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