Get a specific book by ID
AI agents call get_book to retrieve information from OpenAPI REST MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves a single book resource by its identifier, which is a read-only operation with no side effects. It does not create, modify, or delete data, nor does it execute arbitrary code or involve financial transactions. The low severity reflects minimal risk even if misused by an AI agent, as it only exposes existing data.
From the tool's definition Tool name 'get_book' and description 'Get a specific book by ID' indicate data retrieval with no modification or deletion. This is a straightforward GET operation that queries existing data.
Attacks that exploit this kind of access
Get a specific book by ID. It is categorised as a Read tool in the OpenAPI REST MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OpenAPI REST MCP Server MCP server in PolicyLayer and add a rule for 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 OpenAPI REST MCP Server. Nothing to install.
get_book 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 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.
Set action: deny in the PolicyLayer policy for 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.
get_book is provided by the OpenAPI REST MCP Server MCP server (saranazeer27/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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