list_shelves

List all shelves.

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

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/derron-knox-bookstack-mcp-server/list-shelves.md

WHAT IT DOES

What list_shelves does on BookStack MCP Server

AI agents call list_shelves to retrieve information from BookStack MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_shelves is rated Low

This tool performs a read-only operation to enumerate shelves in the BookStack knowledge base. It retrieves information but does not create, modify, delete, or execute any operations. The blast radius of misuse is minimal—an agent could learn the structure of the knowledge base but cannot alter it.

From the tool's definition Tool name 'list_shelves' and description 'List all shelves' indicate a query operation that retrieves shelf data without modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_shelves 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 list_shelves, this is the rule to start with:

list_shelves Allowed

list_shelves is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_shelves": {}
  }
}

ALLOW ONLY 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 list_shelves call is checked against it from then on.

FAQ

Questions about list_shelves

What does the list_shelves tool do? +

List all shelves. It is categorised as a Read tool in the BookStack MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_shelves? +

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

list_shelves is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_shelves? +

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

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

list_shelves 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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