Three tools with basic schemas and descriptions, but significant gaps in parameter documentation and error handling. read_file and send_email have minimal descriptions (under 50 chars). delete_database lacks any safety warnings despite being destructive. No output schemas documented. Parameters lack format constraints, ranges, or validation guidance. No error recovery patterns. Tool composition is reasonable (single responsibility), but descriptions do not explain WHEN to use each tool or what happens on failure.

• Expand tool descriptions to 100 - 200 chars. For delete_database: 'Permanently drop a database table. This action is irreversible. Requires explicit confirmation via KiLu authority gate. Use only when you are certain the table is no longer needed.'
• Add parameter constraints: read_file.path should specify 'Unix-style path, max 255 chars, no ../ traversal'; send_email.to should validate 'RFC 5322 email format'; delete_database.table should require 'alphanumeric + underscore, 1 - 64 chars'.
• Document output schemas explicitly. E.g., read_file returns {content: [{type: 'text', text: string}]}; send_email returns {content: [{type: 'text', text: string}], metadata: {messageId: string, timestamp: ISO8601}}.
• Implement error classification: return {error: 'file_not_found', message: 'File /path/to/file not found. Check path syntax.', retryable: false} instead of generic text responses.
• Add dry-run support to delete_database: accept optional 'dry_run: boolean' parameter. When true, return 'Would drop table X (Y rows, Z MB)' without executing. Requires explicit confirmation for actual deletion.