This Dropbox MCP server has moderate definition quality with some strengths but notable gaps. All three tools are explicitly registered with schemas and descriptions present. However, descriptions lack depth and actionable guidance, parameter documentation is minimal, output schemas are not documented, and error handling is weak. The tool names follow verb_noun conventions (get_tables, get_columns, run_query) which is good, but parameter descriptions are sparse. CSV output format is mentioned but not formally documented as a structured schema. Error handling throws generic RuntimeException with minimal guidance for recovery. No validation of SQL input or error categorization. The server would benefit from richer descriptions explaining when to call each tool, parameter format requirements, output field documentation, and proper error classification.

• Document output schemas as structured JSON objects for all three tools. Instead of 'CSV format, with the first line containing column headers', specify: 'Array of objects with fields: [id: string, name: string, type: string, ...]. Max 100 rows; use limit/offset for pagination.'
• Expand tool descriptions from ~60 chars to 150-200 chars. For get_tables: 'Retrieves available tables in the Dropbox data source. Call this first to discover table names, then use get_columns to see available fields. Returns table metadata including name, type, and row count. Optional catalog and schema parameters filter results; omit for all tables.'
• Add structured parameter documentation with format hints. For catalog/schema: 'Optional catalog name (string, e.g. "main"). Leave empty to search all catalogs.' For table: 'Required table name (string, case-sensitive). Must exist in the data source, call get_tables first to verify.'
• Implement error categorization and recovery guidance. Catch SQLException separately from general exceptions. For 'table not found', return: 'Table "users_table" not found. Available tables: [users, accounts, transactions]. Call dropbox_get_tables to list all tables.' For syntax errors, return specific column: 'Invalid SQL syntax near token "SELCT". Did you mean "SELECT"?'
• Add pagination support. Modify run_query to accept optional limit (default 100, max 10000) and offset parameters. Return total_row_count and has_more flag to guide agent pagination.
• Document SQL dialect constraints explicitly in description: 'SQL-92 dialect. Identifiers (table/column names) must be quoted with double quotes. Supports: SELECT, FROM, WHERE, INNER/LEFT JOIN, GROUP BY, ORDER BY, LIMIT, OFFSET. Does not support: subqueries, CTEs, window functions, UNION.'

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry