edit_pdf_region

Edit a selected region in an existing PDF and write the result to a new PDF path while preserving the source file.

SERVERCoWork OS SOURCECoWork-OS/CoWork-OS

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/cowork-os/edit-pdf-region.md

WHAT IT DOES

What edit_pdf_region does on CoWork OS

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

RISK

Why edit_pdf_region is rated Medium

This tool modifies data (PDF content) and creates a new file with the changes, which is a reversible write operation. It is not destructive because the source file is preserved, and the result is written to a new path.

From the tool's definition Tool description states it will 'Edit a selected region in an existing PDF and write the result to a new PDF path'. The key action is 'write the result to a new PDF path', indicating creation/modification of a new file.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs edit_pdf_region safely

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

edit_pdf_region Rate-limited

edit_pdf_region 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.

View as policy code

policy.json

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

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about edit_pdf_region

What does the edit_pdf_region tool do? +

Edit a selected region in an existing PDF and write the result to a new PDF path while preserving the source file. It is categorised as a Write tool in the CoWork OS MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on edit_pdf_region? +

Register the CoWork OS MCP server in PolicyLayer and add a rule for edit_pdf_region: 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 CoWork OS. Nothing to install.

What risk level is edit_pdf_region? +

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

Can I rate-limit edit_pdf_region? +

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

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

edit_pdf_region is provided by the CoWork OS MCP server (CoWork-OS/CoWork-OS). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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