bookstack_create_book · BookStack MCP Server MCP

WHAT IT DOES

What bookstack_create_book does on BookStack MCP Server

AI agents use bookstack_create_book 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 bookstack_create_book needs a policy

Creating a book is a Write operation that adds new content to the system. While reversible (the book can be deleted), it modifies the BookStack state by introducing new resources. Severity is medium because creating unintended or malicious books could clutter the system or confuse users, but the operation itself can be undone. Confidence is high due to explicit 'create' language and clear reversibility.

From the tool's definition Tool name contains 'create' and description states 'Create a new book in BookStack.' This is a reversible data creation operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

bookstack_create_book Rate-limited

bookstack_create_book 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": {
    "bookstack_create_book": {
      "limits": [
        {
          "counter": "bookstack_create_book_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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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 bookstack_create_book

What does the bookstack_create_book tool do? +

Create a new book in BookStack. 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 bookstack_create_book? +

Register the BookStack MCP Server MCP server in PolicyLayer and add a rule for bookstack_create_book: 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 bookstack_create_book? +

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

Can I rate-limit bookstack_create_book? +

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

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

bookstack_create_book is provided by the BookStack MCP Server MCP server (lborjigi/bookstack-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.