apply-effect · After Effects MCP Server MCP: Risk & Policy

WHAT IT DOES

What apply-effect does on After Effects MCP Server

AI agents use apply-effect to create or update resources in After Effects MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your After Effects MCP Server environment.

WHY IT NEEDS A POLICY

Why apply-effect needs a policy

This tool modifies a layer by applying an effect to it. This is a reversible write operation — effects can typically be removed. The blast radius is medium since it affects creative project data but doesn't delete anything or execute arbitrary code.

From the tool's definition Apply an effect to a layer in After Effects

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

apply-effect Rate-limited

apply-effect 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": {
    "apply-effect": {
      "limits": [
        {
          "counter": "apply-effect_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 After Effects MCP Server, so you can run agents against it safely.

FAQ

Questions about apply-effect

What does the apply-effect tool do? +

Apply an effect to a layer in After Effects. It is categorised as a Write tool in the After Effects MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on apply-effect? +

Register the After Effects MCP Server MCP server in PolicyLayer and add a rule for apply-effect: 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 After Effects MCP Server. Nothing to install.

What risk level is apply-effect? +

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

Can I rate-limit apply-effect? +

Yes. Add a rate_limit block to the apply-effect 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 apply-effect completely? +

Set action: deny in the PolicyLayer policy for apply-effect. 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 apply-effect? +

apply-effect is provided by the After Effects MCP Server MCP server (rtx1025189518-source/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.