create_page · BookStack MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_page does on BookStack MCP Server

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

WHY IT NEEDS A POLICY

Why create_page needs a policy

The tool creates new content (a wiki page) which is a Write operation. Severity is medium because the blast radius depends on context—an AI could create numerous unwanted pages or pages with malicious content, but the operation is reversible via deletion. It does not irreversibly destroy data (Destructive), execute arbitrary code (Execute), move money (Financial), or merely read (Read).

From the tool's definition Tool name 'create_page' and description 'Create a new page in a book or chapter' directly indicate data creation. This is a reversible write operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_page Rate-limited

create_page 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": {
    "create_page": {
      "limits": [
        {
          "counter": "create_page_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 BookStack MCP Server, so you can run agents against it safely.

FAQ

Questions about create_page

What does the create_page tool do? +

Create a new page in a book or chapter. It is categorised as a Write tool in the BookStack MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_page? +

Register the BookStack MCP Server MCP server in PolicyLayer and add a rule for create_page: 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 BookStack MCP Server. Nothing to install.

What risk level is create_page? +

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

Can I rate-limit create_page? +

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

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

create_page is provided by the BookStack MCP Server MCP server (lautarobarba/bookstack_mcp_server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.