# create_book

Create a new book in BookStack.

Agent View of the PolicyLayer registry record for `create_book`. HTML page: https://policylayer.com/tools/derron-knox-bookstack-mcp-server/create-book

## Facts

- Tool: `create_book`
- Server: BookStack MCP Server (`derron-knox/bookstack-mcp-server`) — https://policylayer.com/tools/derron-knox-bookstack-mcp-server.md
- Homepage: https://github.com/Derron-Knox/bookstack-mcp-server
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "create_book",
    "arguments": {}
  }
}
```

## 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 own definition: "Tool name is 'create_book' and description states 'Create a new book in BookStack' — this creates new data structures within the knowledge base."

## Use case

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.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches BookStack MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_book": {
      "limits": [
        {
          "counter": "create_book_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on BookStack MCP Server (23)

- `delete_book` — Destructive — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/delete-book.md
- `delete_chapter` — Destructive — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/delete-chapter.md
- `delete_page` — Destructive — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/delete-page.md
- `delete_shelf` — Destructive — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/delete-shelf.md
- `export_chapter_html` — Read — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/export-chapter-html.md
- `export_chapter_markdown` — Read — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/export-chapter-markdown.md
- `export_chapter_pdf` — Read — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/export-chapter-pdf.md
- `export_chapter_plaintext` — Read — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/export-chapter-plaintext.md
- `get_page_content` — Read — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/get-page-content.md
- `list_books` — Read — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/list-books.md
- `list_chapters` — Read — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/list-chapters.md
- `list_shelves` — Read — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/list-shelves.md
- `read_book` — Read — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/read-book.md
- `read_chapter` — Read — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/read-chapter.md
- `read_shelf` — Read — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/read-shelf.md
- `search_items` — Read — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/search-items.md
- `create_chapter` — Write — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/create-chapter.md
- `create_page` — Write — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/create-page.md
- `create_shelf` — Write — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/create-shelf.md
- `update_book` — Write — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/update-book.md
- `update_chapter` — Write — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/update-chapter.md
- `update_page` — Write — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/update-page.md
- `update_shelf` — Write — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/update-shelf.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=derron-knox-bookstack-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/derron-knox-bookstack-mcp-server