video_studio_generate_audio · LocalAnt MCP: Risk & Policy

WHAT IT DOES

What video_studio_generate_audio does on LocalAnt

AI agents invoke video_studio_generate_audio to trigger actions in LocalAnt. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why video_studio_generate_audio needs a policy

This tool executes external programs (VOICEVOX, macOS 'say', FFmpeg) on the local system to generate audio files. It triggers external operations whose effects depend on arguments, qualifying as Execute. Severity is medium as it runs local processes and produces files, but is not inherently destructive or financial.

From the tool's definition Generate free local narration audio with VOICEVOX first, macOS say preview fallback, or FFmpeg silence fallback

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

video_studio_generate_audio Rate-limited

video_studio_generate_audio stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "video_studio_generate_audio": {
      "limits": [
        {
          "counter": "video_studio_generate_audio_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about video_studio_generate_audio

What does the video_studio_generate_audio tool do? +

Generate free local narration audio with VOICEVOX first, macOS say preview fallback, or FFmpeg silence fallback. It is categorised as a Execute tool in the LocalAnt MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on video_studio_generate_audio? +

Register the LocalAnt MCP server in PolicyLayer and add a rule for video_studio_generate_audio: 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 LocalAnt. Nothing to install.

What risk level is video_studio_generate_audio? +

video_studio_generate_audio is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit video_studio_generate_audio? +

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

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

video_studio_generate_audio is provided by the LocalAnt MCP server (yuga-hashimoto/localant). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.