The server has 31 well-named, verb-prefixed tools covering a comprehensive analytics domain. All tools have descriptions and properly typed input schemas with field-level annotations. However, output schemas are completely undocumented, the tools return raw `str` with no guidance on response structure. Parameters are well-described for the most part, but several generic analytics tools lack nuance on when/why to use them, and there is no documented error recovery guidance. The tool set exhibits good composition (minimal overlap, clear naming), but lacks the structured output and error handling patterns expected of production-grade servers.

• Document output schemas for all 31 tools using JSON Schema. Return structured objects with typed fields (e.g., {counters: [{id: string, name: string, url: string}], total: number}) instead of raw strings. This enables LLMs to parse responses and chain tools effectively.
• Add error handling documentation to tool descriptions. Example: 'Returns error if counter_id is invalid (HTTP 400 with message 'Counter not found'). Retry is safe for network errors (HTTP 5xx).'
• Differentiate content analytics tools by explicitly stating what dimension they group by. Example: get_content_analytics_categories should say 'Get statistics grouped by article category' not just 'overall statistics by content category'. This prevents LLM confusion.
• Document all date range defaults consistently. For tools that default to 'last 7 days', state this explicitly in date_from and date_to descriptions. For tools with different defaults, document those defaults.
• Rename get_conversion_rate_by_source_and_landing to either get_conversion_rates_by_source or get_conversion_rates_by_landing, or split into two separate tools. Tool names must map 1:1 to single actions.
• Add pagination documentation to list_counters. Specify: 'Use per_page and offset (or next_cursor if available) to paginate. Response includes total_count. Fetch next page with offset=current_offset+per_page.'
• Consider adding per-tool tags or grouping metadata to help LLMs understand tool categories (traffic sources, content analytics, device analytics, etc.). Current tags are generic ('metrika', 'read').

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

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