pages_save_document

THE RISK

Medium Risk

Why pages_save_document needs a policy

This tool creates or modifies data on disk by saving a document in Pages format. While not destructive (the save is reversible; previous versions may still exist), it clearly writes data to persistent storage. The high severity reflects that an AI agent misusing this could overwrite important documents or save unwanted content, though the impact is limited to a single document rather than bulk operations.

From the tool's definition Tool name 'pages_save_document' and description explicitly states 'Save a Pages document as .pages (use this to save to disk...)' — a write operation that persists data to the file system.

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

POLICY

How to control pages_save_document

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

policy.json

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

pages_save_document 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 Iwork — 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

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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 pages_save_document

What does the pages_save_document tool do? +

Save a Pages document as .pages (use this to save to disk — use pages_export_document for PDF/Word/EPUB). It is categorised as a Write tool in the Iwork MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on pages_save_document? +

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

What risk level is pages_save_document? +

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

Can I rate-limit pages_save_document? +

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

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

pages_save_document is provided by the Iwork MCP server (reichenbach/iwork_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Iwork tool call.

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

CHECK YOUR STACK →