AI agents call openlibrary_author_works to retrieve information from UnClick without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
limit | number | — | |
author_id | string | Yes |
Parameters from the server's own tool schema.
This tool queries Open Library's public API to retrieve bibliographic data (works authored by a specific person). It performs a read-only lookup operation with no capability to modify, delete, or execute anything. The blast radius of misuse is minimal—an agent could only retrieve publicly available information about an author's works.
From the tool's definition Tool name 'openlibrary_author_works' and description 'Get works by an author from Open Library' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Get works by an author from Open Library. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
openlibrary_author_works accepts 2 parameters: limit, author_id. Required: author_id. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for openlibrary_author_works: 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 UnClick. Nothing to install.
openlibrary_author_works 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 openlibrary_author_works 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 openlibrary_author_works. 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.
openlibrary_author_works is provided by the UnClick MCP server (@unclick/mcp-server). 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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