Medium Risk

add_footnote

Add a footnote to a paragraph. url, if provided, is rendered as a hotlink.

How to control add_footnote ↓

What add_footnote does on Docx

AI agents use add_footnote to create or update resources in Docx — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Docx environment.

Medium Risk

Why add_footnote needs a policy

The tool creates and inserts new data (footnotes) into a Word document, which is a reversible modification. This is a Write operation — it changes document state but does not delete, execute arbitrary code, or cause financial impact.

From the tool's definition "Add a footnote to a paragraph" — this creates new content (a footnote) within a document, modifying its structure and content. The optional URL parameter indicates it can add formatted content including hyperlinks.

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

How to control add_footnote

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

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "add_footnote": {
      "limits": [
        {
          "counter": "add_footnote_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

add_footnote 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.

  1. Create a free account and register Docx — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
LIMIT THIS TOOL →

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Related tools and policies

Go deeper

Questions about add_footnote

What does the add_footnote tool do? +

Add a footnote to a paragraph. url, if provided, is rendered as a hotlink. It is categorised as a Write tool in the Docx MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add_footnote? +

Register the Docx MCP server in PolicyLayer and add a rule for add_footnote: 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 add_footnote? +

add_footnote is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit add_footnote? +

Yes. Add a rate_limit block to the add_footnote 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 add_footnote completely? +

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

add_footnote 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.

Enforce policy on every Docx tool call.

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

Free to start. No card required.

219 Docx tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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