libi.remove_overlay

Remove an overlay (any kind) from the composition by id.

SERVERLibi SOURCENagellabs/libi

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/libi/libi.remove-overlay.md

WHAT IT DOES

What libi.remove_overlay does on Libi

AI agents call libi.remove_overlay to permanently remove resources in Libi, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why libi.remove_overlay is rated Critical

Removes a composition element by ID, which is an irreversible deletion operation.

From the tool's definition Remove an overlay... from the composition by id

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs libi.remove_overlay safely

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

libi.remove_overlay Hidden

libi.remove_overlay is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "libi.remove_overlay"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about libi.remove_overlay

What does the libi.remove_overlay tool do? +

Remove an overlay (any kind) from the composition by id. It is categorised as a Destructive tool in the Libi MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on libi.remove_overlay? +

Register the Libi MCP server in PolicyLayer and add a rule for libi.remove_overlay: 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 Libi. Nothing to install.

What risk level is libi.remove_overlay? +

libi.remove_overlay is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit libi.remove_overlay? +

Yes. Add a rate_limit block to the libi.remove_overlay 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 libi.remove_overlay completely? +

Set action: deny in the PolicyLayer policy for libi.remove_overlay. 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 libi.remove_overlay? +

libi.remove_overlay is provided by the Libi MCP server (Nagellabs/libi). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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