split_pdf_by_bookmarks

THE RISK

Medium Risk

Why split_pdf_by_bookmarks needs a policy

This tool creates new PDF files by splitting an existing document at bookmark boundaries. It produces new files (Write) but does not irreversibly destroy the original, making it Write rather than Destructive. Misuse could produce many unintended files or overwrite existing outputs, hence medium severity.

From the tool's definition Split PDF into separate files using bookmarks as breakpoints

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

POLICY

How to control split_pdf_by_bookmarks

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "split_pdf_by_bookmarks": {
      "limits": [
        {
          "counter": "split_pdf_by_bookmarks_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

split_pdf_by_bookmarks 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.

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

LIMIT THIS TOOL →

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EXPLORE

Related tools and policies

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All 46 MCP PDF tools →

Write tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about split_pdf_by_bookmarks

What does the split_pdf_by_bookmarks tool do? +

Split PDF into separate files using bookmarks as breakpoints. It is categorised as a Write tool in the MCP PDF MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on split_pdf_by_bookmarks? +

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

What risk level is split_pdf_by_bookmarks? +

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

Can I rate-limit split_pdf_by_bookmarks? +

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

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

split_pdf_by_bookmarks is provided by the MCP PDF MCP server (rsp2k/mcp-pdf). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MCP PDF tool call.

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

CHECK YOUR STACK →