vfx_clone_grid · vidMagik- MCP: Risk & Policy

WHAT IT DOES

What vfx_clone_grid does on vidMagik-mcp

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

WHY IT NEEDS A POLICY

Why vfx_clone_grid needs a policy

This tool modifies video content by creating derivative composite frames with duplicated/cloned elements arranged in a grid pattern. While it does not delete or permanently destroy data (not Destructive), nor execute arbitrary code (not Execute), it does create and modify video data reversibly through a video editing operation.

From the tool's definition The tool 'vfx_clone_grid' creates a grid of clones of the original clip, which generates new video content by duplicating and arranging the input clip. The description explicitly states it 'creates' clones, indicating data modification/generation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

vfx_clone_grid Rate-limited

vfx_clone_grid 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": {
    "vfx_clone_grid": {
      "limits": [
        {
          "counter": "vfx_clone_grid_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 vidMagik-mcp, so you can run agents against it safely.

FAQ

Questions about vfx_clone_grid

What does the vfx_clone_grid tool do? +

Creates a grid of clones of the original clip (e.g., 2, 4, 8, 16, 32, 64). It is categorised as a Write tool in the vidMagik-mcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on vfx_clone_grid? +

Register the vidMagik- MCP server in PolicyLayer and add a rule for vfx_clone_grid: 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 vidMagik-mcp. Nothing to install.

What risk level is vfx_clone_grid? +

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

Can I rate-limit vfx_clone_grid? +

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

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

vfx_clone_grid is provided by the vidMagik- MCP server (vizionik25/vidmagik-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.