# create_chapter

Create a new chapter in BookStack.

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

## Facts

- Tool: `create_chapter`
- 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_chapter",
    "arguments": {}
  }
}
```

## Why create_chapter is rated Medium

Creating a chapter is a reversible modification operation—chapters can be deleted or edited afterward. It does not irreversibly destroy data, execute arbitrary code, move money, or read data. The blast radius is medium: an AI agent could create unwanted chapters, polluting the knowledge base, but the damage is recoverable via the delete_chapter tool also present on this server.

From the tool's own definition: "Tool name 'create_chapter' and description 'Create a new chapter in BookStack' directly indicate data creation. The sibling tools confirm this is a write-capable server (alongside create_page, create_book, create_shelf)."

## Use case

AI agents use create_chapter 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_chapter": {
      "limits": [
        {
          "counter": "create_chapter_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_book` — Write — https://policylayer.com/tools/derron-knox-bookstack-mcp-server/create-book.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