Scored across 19 tools
Most tools are clearly distinct, but the PDF-content trio (get_document_text, search_document_text, get_file_content) and the search trio (search_library, search_catalog, get_by_doi) have adjacent purposes. The descriptions do clarify scope (full text vs. phrase search vs. file download; local library vs. global catalog vs. DOI resolution), leaving only mild confusion.
Every tool uses the mendeley_ prefix and a consistent snake_case verb_noun pattern (get_document, create_folder, add_document_to_folder, export_bibtex). There are no mixed conventions or casing inconsistencies.
19 tools is on the heavy side but justified by a genuinely broad domain: document CRUD, folder CRUD, membership management, search, PDF extraction, annotations, and BibTeX export. Each tool maps to a distinct capability rather than being redundant.
Document and folder lifecycles are well covered (create/read/update/delete plus folder membership add/remove), alongside search, content extraction, and export. Minor gaps exist: no folder move/reparent after creation, no annotation write operations, and no group-specific tools despite the create_folder description mentioning group contexts.