41 tools with inconsistent quality. Most have basic descriptions (50-150 chars) and parameter schemas, but lack depth, error guidance, and output documentation. Many descriptions are generic ('Send a X message via WhatsApp') without explaining WHEN to use the tool or what it returns. No tool annotations (readOnlyHint, destructiveHint, idempotentHint). Parameter descriptions are minimal. Output schemas are not documented. Error handling is absent from tool definitions. Tool composition is poor: 15 send_*_message variants should be consolidated into fewer, more flexible tools. No pagination support visible despite tools like get_recent_messages and search_conversations that likely return lists.

• Consolidate 15 send_*_message tools into a single send_message(to, content_type, content, metadata) tool with union-typed content parameter. Reduces cognitive load on LLM and follows single-responsibility principle.
• Add output schemas to every tool definition. Document return type with field names, types, and descriptions. E.g., send_text_message returns {message_id: string, timestamp: string, status: 'sent'|'failed'}.
• Rewrite descriptions to follow pattern:tool-description: 50-200 chars, answer What/When/Why, include recovery hints for errors. E.g., 'Send a text message to a WhatsApp contact. Use this for simple text; use send_template_message for pre-approved marketing templates. Returns message_id and delivery status.'
• Add tool annotations: mark destructive tools (delete_*, clear_*) with destructiveHint=true; mark read-only tools (get_*, list_*) with readOnlyHint=true; mark idempotent tools with idempotentHint=true.
• Add pagination to list/search tools: include limit (default 20, max 100), offset/cursor, and total_count in output. Document in description: 'Returns up to 20 results; use offset to paginate.'

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

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