Critical failures across naming, descriptions, and schemas. Tool names lack action verbs (health, configureZabbix, handleHighCPUUsage use inconsistent patterns). Descriptions are present but generic (10-50 chars, below 194-char baseline). Parameter descriptions are minimal or absent. Schemas use Zod validation internally but are not properly exposed in tool registration. No output schemas documented. Error handling is minimal, responses are plain text, not structured. The codebase shows incomplete implementation (truncated at scheduleSmartMaintenance). No evidence of pagination, result limits, or chaining IDs in responses. Security concern: credentials passed as parameters (url, user, password in configureZabbix) rather than server-side injection.

• Rename tools with clear action verbs: 'health' → 'check_health', 'configureZabbix' → 'set_zabbix_config', 'handleHighCPUUsage' → 'resolve_high_cpu_alert'. Follow verb_noun convention.
• Expand descriptions to 100-200 chars. Example: 'Detects hosts with CPU usage above threshold and attempts automatic remediation by restarting high-consumption processes. Requires Zabbix configured via set_zabbix_config first.'
• Move credentials to server-side injection. Remove url, user, password parameters from configureZabbix. Instead, read ZABBIX_URL, ZABBIX_USER, ZABBIX_PASSWORD from environment at startup. If reconfiguration is needed, accept only a config_name parameter that maps to a vault entry.
• Document output schemas explicitly. Define what each tool returns: e.g., monitorCriticalServices returns {services: [{name, status, lastCheck, nextCheck}], timestamp}. Include field types and meanings.
• Add parameter descriptions for all enums. For securityAudit scope, explain: 'full = all security checks, critical = high-risk checks only, custom = user-specified checks via checks parameter'.