Get subcollections (child collections) of a specific collection. Use recursive=true to retrieve the full nested hierarchy of all descendant collections.
AI agents call get_subcollections to retrieve information from Zotero Agent without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns organizational metadata about collection hierarchies within Zotero. It has no side effects, cannot modify data, and only performs information retrieval. The recursive parameter is a filter option, not a behavioral change. Misuse carries minimal risk as it only exposes existing collection structure data that the user already has access to through other read operations.
From the tool's definition Tool description states 'Get subcollections (child collections)' and 'retrieve the full nested hierarchy' — purely retrieval operations with no modification, deletion, or execution capabilities.
Attacks that exploit this kind of access
Get subcollections (child collections) of a specific collection. Use recursive=true to retrieve the full nested hierarchy of all descendant collections. It is categorised as a Read tool in the Zotero Agent MCP Server, which means it retrieves data without modifying state.
Register the Zotero Agent MCP server in PolicyLayer and add a rule for get_subcollections: 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 Zotero Agent. Nothing to install.
get_subcollections 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_subcollections 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_subcollections. 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_subcollections is provided by the Zotero Agent MCP server (psiQAQ/zotero-agent). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_subcollections is one line of Zotero Agent's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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