generate_speech · Tavus MCP Server MCP: Risk & Policy

WHAT IT DOES

What generate_speech does on Tavus MCP Server

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

WHY IT NEEDS A POLICY

Why generate_speech needs a policy

This tool creates a new speech audio artifact from text input. It is a creative/generative write operation — it produces a new resource (audio file) but does not delete or irreversibly overwrite existing data, execute code, or move money.

From the tool's definition Generate speech audio from text using a replica

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_speech Rate-limited

generate_speech 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_speech": {
      "limits": [
        {
          "counter": "generate_speech_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Tavus MCP Server, so you can run agents against it safely.

FAQ

Questions about generate_speech

What does the generate_speech tool do? +

Generate speech audio from text using a replica. It is categorised as a Write tool in the Tavus 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 generate_speech? +

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

What risk level is generate_speech? +

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

Can I rate-limit generate_speech? +

Yes. Add a rate_limit block to the generate_speech 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_speech completely? +

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

generate_speech is provided by the Tavus MCP Server MCP server (rakeshdavid/tavus-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.