create-composition · After Effects MCP Server MCP

WHAT IT DOES

What create-composition does on After Effects MCP Server

AI agents use create-composition 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 create-composition needs a policy

This tool creates new data structures (compositions) in Adobe After Effects, which is a Write operation. It modifies project state but does not execute arbitrary code, delete data irreversibly, or incur financial obligations.

From the tool's definition Tool name 'create-composition' and description states it will 'Create a new composition' which modifies After Effects project state by adding new content. The operation is reversible (can be deleted/undone).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create-composition Rate-limited

create-composition 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-composition": {
      "limits": [
        {
          "counter": "create-composition_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 create-composition

What does the create-composition tool do? +

Create a new composition in After Effects with specified parameters. 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 create-composition? +

Register the After Effects MCP Server MCP server in PolicyLayer and add a rule for create-composition: 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 create-composition? +

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

Can I rate-limit create-composition? +

Yes. Add a rate_limit block to the create-composition 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-composition completely? +

Set action: deny in the PolicyLayer policy for create-composition. 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-composition? +

create-composition 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.