trim_comp_to_work_area
Trim a composition to its work area (sets duration = work area duration).
This record as markdown: /tools/synthetic-ai-ae-mcp/trim-comp-to-work-area.md
What trim_comp_to_work_area does on Ae
AI agents use trim_comp_to_work_area to create or update resources in Ae, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ae environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
save | boolean | — | |
compName | string | Yes | |
timeoutMs | number | — | |
projectPath | string | — |
Parameters from the server's own tool schema.
Why trim_comp_to_work_area is rated Medium
An AI agent can call trim_comp_to_work_area faster than any human can review: one bad instruction and it creates or modifies resources in Ae by the hundred, each call as confident as the last.
Attacks that exploit this kind of access
The rule that runs trim_comp_to_work_area safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Ae, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For trim_comp_to_work_area, this is the rule to start with:
trim_comp_to_work_area 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Ae, apply this rule, and every trim_comp_to_work_area call is checked against it from then on.
Questions about trim_comp_to_work_area
Trim a composition to its work area (sets duration = work area duration). It is categorised as a Write tool in the Ae MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
trim_comp_to_work_area accepts 4 parameters: save, compName, timeoutMs, projectPath. Required: compName. The full parameter table on this page comes from the server's own tool schema.
Register the Ae MCP server in PolicyLayer and add a rule for trim_comp_to_work_area: 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 Ae. Nothing to install.
trim_comp_to_work_area is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the trim_comp_to_work_area 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.
Set action: deny in the PolicyLayer policy for trim_comp_to_work_area. 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.
trim_comp_to_work_area is provided by the Ae MCP server (@synthetic-ai/ae-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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