flowspeech_tts · FlowSpeech MCP Server MCP: Risk & Policy

WHAT IT DOES

What flowspeech_tts does on FlowSpeech MCP Server

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

WHY IT NEEDS A POLICY

Why flowspeech_tts needs a policy

This tool creates a new audio file from text input. It writes data (audio file) to the filesystem. It has no destructive, financial, or execution side effects. The severity is medium because an AI agent could generate and store arbitrary audio content, but it is reversible (files can be deleted).

From the tool's definition Convert text to speech... Returns the file path of the generated audio.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

flowspeech_tts Rate-limited

flowspeech_tts 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": {
    "flowspeech_tts": {
      "limits": [
        {
          "counter": "flowspeech_tts_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 FlowSpeech MCP Server, so you can run agents against it safely.

FAQ

Questions about flowspeech_tts

What does the flowspeech_tts tool do? +

Convert text to speech using FlowSpeech — a context-aware TTS engine with emotion control and 30+ voices. Returns the file path of the generated audio. It is categorised as a Write tool in the FlowSpeech 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 flowspeech_tts? +

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

What risk level is flowspeech_tts? +

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

Can I rate-limit flowspeech_tts? +

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

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

flowspeech_tts is provided by the FlowSpeech MCP Server MCP server (waeckerlinfederowicz66-sketch/mcp-flowspeech-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.