crow_calibreweb_get_book

Get detailed information about a specific book by ID, including reader URL and download links

SERVERCrow SOURCEkh0pper/crow

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/kh0pper-crow/crow-calibreweb-get-book.md

WHAT IT DOES

What crow_calibreweb_get_book does on Crow

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

RISK

Why crow_calibreweb_get_book is rated Low

This tool retrieves and queries book metadata without creating, modifying, deleting, or executing anything. It is purely a read operation that returns existing information about a book resource. The severity is low as misuse would only expose publicly available book information.

From the tool's definition Tool description states 'Get detailed information about a specific book by ID' with no modification, deletion, or execution capabilities. Returns informational data (reader URL and download links) only.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs crow_calibreweb_get_book safely

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

crow_calibreweb_get_book Allowed

crow_calibreweb_get_book 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": {
    "crow_calibreweb_get_book": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Crow, apply this rule, and every crow_calibreweb_get_book call is checked against it from then on.

FAQ

Questions about crow_calibreweb_get_book

What does the crow_calibreweb_get_book tool do? +

Get detailed information about a specific book by ID, including reader URL and download links. It is categorised as a Read tool in the Crow MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on crow_calibreweb_get_book? +

Register the Crow MCP server in PolicyLayer and add a rule for crow_calibreweb_get_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 Crow. Nothing to install.

What risk level is crow_calibreweb_get_book? +

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

Can I rate-limit crow_calibreweb_get_book? +

Yes. Add a rate_limit block to the crow_calibreweb_get_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 crow_calibreweb_get_book completely? +

Set action: deny in the PolicyLayer policy for crow_calibreweb_get_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 crow_calibreweb_get_book? +

crow_calibreweb_get_book is provided by the Crow MCP server (kh0pper/crow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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