create_avatar_video · VideoGen Advisor MCP: Risk & Policy

WHAT IT DOES

What create_avatar_video does on VideoGen Advisor

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

WHY IT NEEDS A POLICY

Why create_avatar_video needs a policy

This tool creates a new avatar video asset using specified parameters. It is a Write operation as it generates/creates new content on the HeyGen platform. It does not delete or overwrite existing data, execute arbitrary code, or involve financial transactions. Misuse could result in unintended video creation or resource consumption, hence medium severity.

From the tool's definition 'Create a HeyGen avatar video with specific avatar and voice selection' — creates a new video resource

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_avatar_video Rate-limited

create_avatar_video 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": {
    "create_avatar_video": {
      "limits": [
        {
          "counter": "create_avatar_video_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 VideoGen Advisor, so you can run agents against it safely.

FAQ

Questions about create_avatar_video

What does the create_avatar_video tool do? +

Create a HeyGen avatar video with specific avatar and voice selection. Use for precise control over avatar. It is categorised as a Write tool in the VideoGen Advisor MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_avatar_video? +

Register the VideoGen Advisor MCP server in PolicyLayer and add a rule for create_avatar_video: 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 VideoGen Advisor. Nothing to install.

What risk level is create_avatar_video? +

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

Can I rate-limit create_avatar_video? +

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

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

create_avatar_video is provided by the VideoGen Advisor MCP server (m2ai-mcp-servers/mcp-videogen-router). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.