libi.tts_download_model

Download the Kokoro model (~110 MB) into ~/.libi/models/tts/ (background job, progress streamed). Idempotent. No API key, free, on-device.

SERVERLibi SOURCENagellabs/libi

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/libi/libi.tts-download-model.md

WHAT IT DOES

What libi.tts_download_model does on Libi

AI agents call libi.tts_download_model to retrieve information from Libi without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why libi.tts_download_model is rated Low

Even though libi.tts_download_model only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs libi.tts_download_model safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Libi, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For libi.tts_download_model, this is the rule to start with:

libi.tts_download_model Allowed

libi.tts_download_model is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "libi.tts_download_model": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Libi, apply this rule, and every libi.tts_download_model call is checked against it from then on.

FAQ

Questions about libi.tts_download_model

What does the libi.tts_download_model tool do? +

Download the Kokoro model (~110 MB) into ~/.libi/models/tts/ (background job, progress streamed). Idempotent. No API key, free, on-device. It is categorised as a Read tool in the Libi MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on libi.tts_download_model? +

Register the Libi MCP server in PolicyLayer and add a rule for libi.tts_download_model: 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 Libi. Nothing to install.

What risk level is libi.tts_download_model? +

libi.tts_download_model is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit libi.tts_download_model? +

Yes. Add a rate_limit block to the libi.tts_download_model 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 libi.tts_download_model completely? +

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

libi.tts_download_model is provided by the Libi MCP server (Nagellabs/libi). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →