# zotero_find_duplicates A read tool on the Zotero MCP MCP server. Agent View of the PolicyLayer registry record for `zotero_find_duplicates`. HTML page: https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-find-duplicates ## Facts - Tool: `zotero_find_duplicates` - Server: Zotero MCP (`pypi:zotero-mcp-server`) — https://policylayer.com/tools/54yyyu-zotero-mcp.md - Install: `npx -y pypi:zotero-mcp-server` - Homepage: https://github.com/54yyyu/zotero-mcp - Risk category: Read (Low risk) - Registry record: grade F, identity unverified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Allowed ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "zotero_find_duplicates", "arguments": {} } } ``` ## Why zotero_find_duplicates is rated Low This tool retrieves and identifies duplicate records from the user's research library without creating, modifying, or deleting any data. It is a query operation analogous to the 'search' tool on the same server. The operation has minimal blast radius—incorrect results would only provide misleading information, not cause data loss or unintended modifications. From the tool's own definition: "Tool name 'zotero_find_duplicates' indicates a search/query operation that identifies duplicate entries in a Zotero library. The sibling tools include 'search', 'fetch', and other read operations, establishing the Read category pattern for this server." ## Use case AI agents call zotero_find_duplicates to retrieve information from Zotero MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere. ## Recommended policy (PolicyLayer) Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Zotero MCP: ```json { "version": "1", "default": "deny", "tools": { "zotero_find_duplicates": {} } } ``` ## Other tools on Zotero MCP (54) - `zotero_delete_annotation` — Destructive — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-delete-annotation.md - `zotero_delete_collection` — Destructive — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-delete-collection.md - `zotero_delete_item` — Destructive — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-delete-item.md - `zotero_remove_item_relation` — Destructive — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-remove-item-relation.md - `fetch` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/fetch.md - `scite_check_retractions` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/scite-check-retractions.md - `scite_enrich_item` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/scite-enrich-item.md - `scite_enrich_search` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/scite-enrich-search.md - `search` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/search.md - `zotero_advanced_search` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-advanced-search.md - `zotero_authorize_local_writes` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-authorize-local-writes.md - `zotero_export_bibliography` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-export-bibliography.md - `zotero_find_related_papers` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-find-related-papers.md - `zotero_get_annotations` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-get-annotations.md - `zotero_get_attachment_path` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-get-attachment-path.md - `zotero_get_collection_items` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-get-collection-items.md - `zotero_get_collections` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-get-collections.md - `zotero_get_feed_items` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-get-feed-items.md - `zotero_get_item_children` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-get-item-children.md - `zotero_get_item_fulltext` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-get-item-fulltext.md - `zotero_get_item_metadata` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-get-item-metadata.md - `zotero_get_item_related` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-get-item-related.md - `zotero_get_notes` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-get-notes.md - `zotero_get_page_layout` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-get-page-layout.md - `zotero_get_pdf_outline` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-get-pdf-outline.md - `zotero_get_recent` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-get-recent.md - `zotero_get_search_database_status` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-get-search-database-status.md - `zotero_get_tags` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-get-tags.md - `zotero_library_coverage` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-library-coverage.md - `zotero_list_feeds` — Read — https://policylayer.com/tools/54yyyu-zotero-mcp/zotero-list-feeds.md - …and 24 more: https://policylayer.com/tools/54yyyu-zotero-mcp.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=54yyyu-zotero-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/54yyyu-zotero-mcp