Server has 11 tools with basic schemas and descriptions, but significant quality gaps. All tools have descriptions (positive), but most are generic and under 100 chars, lacking context on WHEN to use them or WHAT they return. No output schemas documented. Tool naming is reasonable (verb_noun pattern) but descriptions fail to explain state changes, prerequisites, or error recovery. No tool annotations (readOnlyHint/destructiveHint). Error handling exists but responses are generic. Security concern: execute_sql and delete_data lack proper safeguards despite destructive risk.

• Add output schemas to all tools. Document the structure of returned data (e.g., list_databases returns {databases: [{name: string, tables_count: number}]}). This enables LLMs to plan multi-step workflows.
• Expand parameter descriptions. For 'database' param: 'Database name (optional; if omitted, uses the default connection database). Must be a valid MySQL database accessible to the connection user.'
• Remove or restrict execute_sql. It overlaps with insert, update, delete_data, and drop_table, creating ambiguity. If kept, add validation to reject non-SELECT statements and document that specialized tools are preferred.
• Add tool annotations: mark delete_data and drop_table with destructiveHint=true; mark query, list_databases, describe_table with readOnlyHint=true. This signals to LLMs which tools are safe to retry.
• Implement a dry-run or confirmation pattern for destructive operations. E.g., add a 'dry_run' boolean parameter to delete_data and drop_table, or return a confirmation token that must be passed to execute the operation.