This server presents 41 tools with significant definition quality gaps. While tool names generally follow verb_noun patterns (search_*, get_*, list_*, etc.) and are action-oriented, the implementation reveals critical deficiencies in schema completeness, parameter descriptions, and output documentation. Many tools lack visible input schemas in the provided code; parameter descriptions are minimal or missing; output structures are undocumented. The server addresses a sophisticated domain (biomedical literature research) but the tool definitions do not meet production standards for LLM-driven composition. Average tool definition score across the 41 tools is 52, pulling down the overall dimension. Most tools lack comprehensive error guidance, output schema documentation, and parameter relationship documentation required for robust agent planning.

• Document output schemas for every tool. For example, fetch_article_details should return a schema like {pmid: string, title: string, authors: [{name: string, affiliation: string}], abstract: string, publication_date: string, mesh_terms: [string], ...}. Use tool-level output documentation or return type hints visible in code.
• Expand parameter descriptions from placeholders to actionable constraints. Instead of 'Population parameter', write: 'Population: Describe the study population (e.g., age, condition, gender). Used for MeSH expansion and query building. Omit if using unified_search instead.'
• Clarify tool composition dependencies in descriptions. Add text like 'Use validate_pico_plan first to ensure PICO is well-formed. Then call generate_search_queries to expand into MeSH terms. Finally, pass the results to unified_search.' to guide LLM sequencing.
• Add enum constraints to parameters with known valid values. For convert_icd_mesh source parameter, declare: {type: string, enum: [icd10, mesh]}. For prepare_export format, declare: {type: string, enum: [bibtex, ris, endnote, json]}.
• Implement confirmation/dry-run for destructive tools. For save_pipeline, add optional 'confirm' parameter. For delete_pipeline, add 'dry_run' parameter. Return a summary for confirmation before executing.
• Document error categories and recovery guidance. For get_fulltext, add: 'Returns error code access_denied if full text is behind paywall, agent should try get_institutional_link() or search for preprint via unified_search. Returns error code not_found if PMID does not exist, verify PMID with fetch_article_details first.'