Retrieve item fields.
AI agents call item_fields to retrieve information from Mcp Zotero without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata about item fields in a Zotero library. It has no side effects, does not modify data, and is consistent with the broader Read category of data retrieval operations. The low severity reflects minimal security impact if misused—an agent could enumerate field names but cannot access sensitive data, modify items, or cause harm.
From the tool's definition Tool name is 'item_fields' and description states 'Retrieve item fields' — a read-only operation that queries data from Zotero without modifying anything.
Attacks that exploit this kind of access
Retrieve item fields. It is categorised as a Read tool in the Mcp Zotero MCP Server, which means it retrieves data without modifying state.
Register the Mcp Zotero MCP server in PolicyLayer and add a rule for item_fields: 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 Mcp Zotero. Nothing to install.
item_fields 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 item_fields 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 item_fields. 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.
item_fields is provided by the Mcp Zotero MCP server (nealcaren/mcp-zotero). 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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