crow_bookstack_books
List books in BookStack, optionally filtered or sorted
This record as markdown: /tools/kh0pper-crow/crow-bookstack-books.md
What crow_bookstack_books does on Crow
AI agents call crow_bookstack_books 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.
Why crow_bookstack_books is rated Low
This tool queries and retrieves data (books) from BookStack with optional filters and sorting parameters. It performs no writes, deletions, or external operations. The blast radius of misuse is minimal—an attacker could enumerate books in the system but cannot modify, delete, or access sensitive data beyond what exists in the BookStack library listing.
From the tool's definition Tool name and description indicate it 'List books in BookStack' with optional filtering or sorting—a retrieval operation with no modification or deletion capability.
Attacks that exploit this kind of access
The rule that runs crow_bookstack_books 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_bookstack_books, this is the rule to start with:
crow_bookstack_books is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Crow, apply this rule, and every crow_bookstack_books call is checked against it from then on.
Questions about crow_bookstack_books
List books in BookStack, optionally filtered or sorted. It is categorised as a Read tool in the Crow MCP Server, which means it retrieves data without modifying state.
Register the Crow MCP server in PolicyLayer and add a rule for crow_bookstack_books: 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.
crow_bookstack_books is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the crow_bookstack_books 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.
Set action: deny in the PolicyLayer policy for crow_bookstack_books. 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.
crow_bookstack_books 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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