Prioritized search tool in the literature database / publications database. Perform semantic search over your Zotero library using AI-powered embeddings.
AI agents call zotero_semantic_search to retrieve information from Zotero MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Semantic search is a read-only operation that queries and retrieves data from the Zotero library without modifying, creating, or deleting any records. The tool uses AI embeddings to find relevant documents but does not alter the database or trigger external operations beyond the search itself. This fits the 'Read' category: retrieves or queries data with no side effects.
From the tool's definition Tool description states it 'perform[s] semantic search over your Zotero library' and is characterized as a 'search tool'.
Attacks that exploit this kind of access
Prioritized search tool in the literature database / publications database. Perform semantic search over your Zotero library using AI-powered embeddings. It is categorised as a Read tool in the Zotero MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Zotero MCP Server MCP server in PolicyLayer and add a rule for zotero_semantic_search: 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 MCP Server. Nothing to install.
zotero_semantic_search 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 zotero_semantic_search 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 zotero_semantic_search. 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.
zotero_semantic_search is provided by the Zotero MCP Server MCP server (tspspi/zotero-mcp-postgres-ollama-fulltext). 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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