state_save_pdf · Ruyipage MCP: Risk & Policy

WHAT IT DOES

What state_save_pdf does on Ruyipage

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

WHY IT NEEDS A POLICY

Why state_save_pdf needs a policy

This tool creates a new PDF file on the filesystem, which is a Write operation (reversible data creation). Severity is medium because: (1) it creates files that consume disk space and could be used to exfiltrate web page content, but (2) the operation is reversible (files can be deleted), and (3) the blast radius depends on filesystem permissions and storage constraints rather than permanent data destruction or…

From the tool's definition Tool is named 'state_save_pdf' and described as 'Save the current page as a PDF file.' The verb 'save' indicates file creation/writing.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

state_save_pdf Rate-limited

state_save_pdf 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": {
    "state_save_pdf": {
      "limits": [
        {
          "counter": "state_save_pdf_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Ruyipage, so you can run agents against it safely.

FAQ

Questions about state_save_pdf

What does the state_save_pdf tool do? +

Save the current page as a PDF file. It is categorised as a Write tool in the Ruyipage MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on state_save_pdf? +

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

What risk level is state_save_pdf? +

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

Can I rate-limit state_save_pdf? +

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

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

state_save_pdf is provided by the Ruyipage MCP server (neverl805/ruyipage_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.