add_sticky_notes

THE RISK

Medium Risk

Why add_sticky_notes needs a policy

This tool creates new annotations (sticky notes) within a PDF document, which modifies the document by adding reversible metadata/comments. This is a Write operation because annotations can be added, edited, or removed without permanently destroying core document content.

From the tool's definition Tool name 'add_sticky_notes' and description 'Add sticky note comments to specific locations in PDF' indicate creation and modification of PDF document content through annotation.

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

POLICY

How to control add_sticky_notes

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 add_sticky_notes:

policy.json

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

add_sticky_notes 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 →

Free to start. No card required.

EXPLORE

Related tools and policies

More MCP PDF tools

Write optimize_pdf Optimize PDF file size and performance Write reorder_pdf_pages Reorder pages in a PDF document Write repair_pdf Attempt to repair corrupted or damaged PDF files Write rotate_pages Rotate specific pages by 90, 180, or 270 degrees Write split_pdf Split PDF into multiple files at specified pages Write split_pdf_by_bookmarks Split PDF into separate files using bookmarks as breakpoints Write split_pdf_by_pages Split PDF into separate files by page ranges Write add_date_field Add a date field with format validation to PDF

All 46 MCP PDF tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

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 add_sticky_notes

What does the add_sticky_notes tool do? +

Add sticky note comments to specific locations in PDF. 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 add_sticky_notes? +

Register the MCP PDF MCP server in PolicyLayer and add a rule for add_sticky_notes: 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 add_sticky_notes? +

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

Can I rate-limit add_sticky_notes? +

Yes. Add a rate_limit block to the add_sticky_notes 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_sticky_notes completely? +

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

add_sticky_notes 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 →