create-composition

Create a new composition in After Effects with specified parameters

SERVERAos SOURCE@hybridlabor-api/aos

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/hybridlabor-api-aos/create-composition.md

WHAT IT DOES

What create-composition does on Aos

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

RISK

Why create-composition is rated Medium

This tool creates new compositions (reversible project artifacts) in After Effects. While not destructive and not executing arbitrary code, it modifies the project state by adding new elements. Creation operations are categorized as Write.

From the tool's definition Tool name 'create-composition' and description 'Create a new composition in After Effects with specified parameters' indicate creation of new data/project elements within After Effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create-composition safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Aos, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create-composition, this is the rule to start with:

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.

The button opens the PolicyLayer dashboard: create your workspace, connect Aos, apply this rule, and every create-composition call is checked against it from then on.

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 Aos 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 Aos 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 Aos. 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 Aos MCP server (@hybridlabor-api/aos). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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