delete_master_spread

THE RISK

Critical Risk

Why delete_master_spread needs a policy

This tool irreversibly removes a master spread, which cannot be undone programmatically and cascades destructive effects to pages that depend on it. While not data exfiltration or financial loss, the irreversible deletion of design infrastructure makes it Destructive rather than Execute.

From the tool's definition Tool name 'delete_master_spread' uses the verb 'delete', and description states 'Delete a master spread'. Master spreads in InDesign are foundational design templates that control layout consistency across pages; deleting one is irreversible and can break…

Documented attack patterns abuse exactly the kind of access delete_master_spread gives an agent:

POLICY

How to control delete_master_spread

PolicyLayer is an MCP gateway — it sits between your AI agents and InDesign MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for delete_master_spread:

policy.json

{
  "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.

Create a free account and register InDesign MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More InDesign MCP Server tools

Destructive cleanup_document Clean up document (remove unused elements) Destructive clear_session Clear all session data including page dimensions and document information Destructive delete_all_page_layout_snapshots Delete all layout snapshots for a page Destructive delete_page Delete a page from the document Destructive delete_page_item Delete a page item Destructive delete_page_layout_snapshot Delete the layout snapshot for a page Destructive delete_spread Delete a spread Execute execute_indesign_code Execute custom InDesign ExtendScript code

All 135 InDesign MCP Server tools →

Destructive tools on other servers

Android Forensics ADB MCP Server create_full_backup 0xarchive web3_revoke_key Frida Game Hacking MCP clear_scan cPanel MCP Server clear_spam_box

Go deeper

Critical-risk tools in InDesign MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about delete_master_spread

What does the delete_master_spread tool do? +

Delete a master spread. It is categorised as a Destructive tool in the InDesign MCP Server 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 delete_master_spread? +

Register the InDesign 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 MCP Server. Nothing to install.

What risk level is delete_master_spread? +

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.

Can I rate-limit delete_master_spread? +

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.

How do I block delete_master_spread completely? +

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.

What MCP server provides delete_master_spread? +

delete_master_spread is provided by the InDesign MCP Server MCP server (zachshallbetter/indesign-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every InDesign MCP Server tool call.

Start from InDesign MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →