AI agents call delete_master_spread to permanently remove resources in InDesign UXP MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently removes a master spread, which is a foundational design template in InDesign documents. Deletion of master spreads could cascade to affect all document pages using that master, potentially causing layout corruption or loss of formatting. The action is irreversible without undo (which may not be available in automated contexts), making it Destructive rather than Write.
From the tool's definition delete_master_spread performs an irreversible deletion operation on a master spread in an Adobe InDesign document. The verb 'delete' and explicit purpose to remove a master spread indicate a destructive action that cannot be undone programmatically.
Documented attack patterns abuse exactly the kind of access delete_master_spread gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and InDesign UXP MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for delete_master_spread:
{
"version": "1",
"default": "deny",
"hide": [
"delete_master_spread"
]
}delete_master_spread disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
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Delete a master spread. It is categorised as a Destructive tool in the InDesign UXP MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the InDesign UXP MCP Server MCP server in PolicyLayer and add a rule for delete_master_spread: 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 InDesign UXP MCP Server. Nothing to install.
delete_master_spread is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_master_spread 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 delete_master_spread. 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.
delete_master_spread is provided by the InDesign UXP MCP Server MCP server (theloniuser/indesign-uxp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 135 InDesign UXP MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
135 InDesign UXP MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.