insert_fusion_composition

Insert an empty Fusion composition at the playhead in the current timeline.

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/insert-fusion-composition.md

WHAT IT DOES

What insert_fusion_composition does on Aos

AI agents use insert_fusion_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 insert_fusion_composition is rated Medium

Creates new composition object in timeline; reversible via undo; affects media project state.

From the tool's definition Insert an empty Fusion composition at the playhead in the current timeline.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs insert_fusion_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 insert_fusion_composition, this is the rule to start with:

insert_fusion_composition Rate-limited

insert_fusion_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": {
    "insert_fusion_composition": {
      "limits": [
        {
          "counter": "insert_fusion_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 insert_fusion_composition call is checked against it from then on.

FAQ

Questions about insert_fusion_composition

What does the insert_fusion_composition tool do? +

Insert an empty Fusion composition at the playhead in the current timeline. 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 insert_fusion_composition? +

Register the Aos MCP server in PolicyLayer and add a rule for insert_fusion_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 insert_fusion_composition? +

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

Can I rate-limit insert_fusion_composition? +

Yes. Add a rate_limit block to the insert_fusion_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 insert_fusion_composition completely? +

Set action: deny in the PolicyLayer policy for insert_fusion_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 insert_fusion_composition? +

insert_fusion_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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