delete_header

Delete a header by location: default, first, or even.

SERVERDocx SOURCEsecurityronin/docx-mcp

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/securityronin-docx-mcp/delete-header.md

WHAT IT DOES

What delete_header does on Docx

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

RISK

Why delete_header is rated Critical

This tool permanently removes document structure (headers) which cannot be recovered without undo functionality at the application level. While the blast radius is somewhat contained (headers are document sections rather than entire documents), the irreversible nature of deletion places this in the Destructive category rather than Write.

From the tool's definition Tool name 'delete_header' with verb 'Delete' and description states 'Delete a header by location'; deletion of document headers is irreversible and cannot be undone through the tool's normal operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs delete_header safely

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

delete_header Hidden

delete_header 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": [
    "delete_header"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about delete_header

What does the delete_header tool do? +

Delete a header by location: default, first, or even. It is categorised as a Destructive tool in the Docx 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_header? +

Register the Docx MCP server in PolicyLayer and add a rule for delete_header: 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 Docx. Nothing to install.

What risk level is delete_header? +

delete_header 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_header? +

Yes. Add a rate_limit block to the delete_header 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_header completely? +

Set action: deny in the PolicyLayer policy for delete_header. 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_header? +

delete_header is provided by the Docx MCP server (securityronin/docx-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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