generate_voice

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/generate-voice.md

WHAT IT DOES

What generate_voice does on Hermoso

AI agents use generate_voice 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 generate_voice is rated Medium

generate_voice produces new data (audio files) from user input, which is a Write operation—content creation that is reversible and modifiable. It does not execute arbitrary code, delete data, or move money.

From the tool's definition Tool generates and returns a new audio artifact (MP3 URL) from text input, creating new media content that did not previously exist.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs generate_voice 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 generate_voice, this is the rule to start with:

generate_voice Rate-limited

generate_voice 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": {
    "generate_voice": {
      "limits": [
        {
          "counter": "generate_voice_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 generate_voice call is checked against it from then on.

FAQ

Questions about generate_voice

What does the generate_voice tool do? +

RAW text-to-speech from the voice-model catalog: speak a script in a chosen voice and return the served MP3 URL. For a standalone voiceover / narration clip — NOT for adding audio to a video (render_ad and generate_video voice their own spots; change_voice re-voices a finished clip). engine picks the voice model (default. 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 generate_voice? +

Register the Hermoso MCP server in PolicyLayer and add a rule for generate_voice: 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 generate_voice? +

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

Can I rate-limit generate_voice? +

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

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

generate_voice 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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