vfx_chroma_key · vidMagik- MCP: Risk & Policy

WHAT IT DOES

What vfx_chroma_key does on vidMagik-mcp

AI agents invoke vfx_chroma_key to trigger actions in vidMagik-mcp. 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 vfx_chroma_key needs a policy

The description is empty, so classification is based on name and server context alone. 'vfx_chroma_key' is a visual effect (chroma keying / green screen) that processes and transforms video clips. Given the server context (MoviePy-based video editing), this tool likely applies a chroma key effect to video, which is an Execute-level operation (runs a video transformation).

From the tool's definition Tool name 'vfx_chroma_key' on a video editing MCP server with 70+ tools for video transformations and compositing

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

vfx_chroma_key Rate-limited

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

FAQ

Questions about vfx_chroma_key

What does the vfx_chroma_key tool do? +

vfx_chroma_key. It is categorised as a Execute tool in the vidMagik-mcp MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on vfx_chroma_key? +

Register the vidMagik- MCP server in PolicyLayer and add a rule for vfx_chroma_key: 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_chroma_key? +

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

Can I rate-limit vfx_chroma_key? +

Yes. Add a rate_limit block to the vfx_chroma_key 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_chroma_key completely? +

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

vfx_chroma_key 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.