create_book

Create a new book in BookStack.

SERVERBookStack MCP Server SOURCEderron-knox/bookstack-mcp-server

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/derron-knox-bookstack-mcp-server/create-book.md

WHAT IT DOES

What create_book does on BookStack MCP Server

AI agents use 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.

RISK

Why create_book is rated Medium

Creating a book is a reversible write operation that adds data to the system without destroying or modifying existing content. It has medium severity because uncontrolled book creation could clutter the knowledge base or consume resources, but the action is not destructive and can be undone by deleting the created book. The sibling tools include destructive operations (delete_*), but this specific tool only creates.

From the tool's definition Tool name is 'create_book' and description states 'Create a new book in BookStack' — this creates new data structures within the knowledge base.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_book safely

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

create_book Rate-limited

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": {
    "create_book": {
      "limits": [
        {
          "counter": "create_book_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 BookStack MCP Server, apply this rule, and every create_book call is checked against it from then on.

FAQ

Questions about create_book

What does the 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 create_book? +

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

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

Can I rate-limit create_book? +

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

Set action: deny in the PolicyLayer policy for 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 create_book? +

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

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