vfx_invert_colors · vidMagik- MCP: Risk & Policy

WHAT IT DOES

What vfx_invert_colors does on vidMagik-mcp

AI agents use vfx_invert_colors 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_invert_colors needs a policy

This tool applies a color inversion effect to video content. It modifies data (a video transformation) but does so reversibly — the original can be recovered by inverting again or keeping the source. No execution of arbitrary code, no deletion, no financial impact. Fits Write as the best category since it creates/modifies media content.

From the tool's definition 'Invert colors' — applies a color transformation to video/image data, modifying it reversibly

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

vfx_invert_colors Rate-limited

vfx_invert_colors 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_invert_colors": {
      "limits": [
        {
          "counter": "vfx_invert_colors_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_invert_colors

What does the vfx_invert_colors tool do? +

Invert colors. 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_invert_colors? +

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

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

Can I rate-limit vfx_invert_colors? +

Yes. Add a rate_limit block to the vfx_invert_colors 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_invert_colors completely? +

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

vfx_invert_colors 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.