This server has moderate structural quality with clear tool definitions, but significant gaps in parameter descriptions, output schemas, and error handling. All 7 tools have schemas with types, but critical parameter descriptions are missing or generic. Output schemas are undocumented. No error guidance provided. Tool naming is mostly verb-noun compliant but inconsistent. The 'page_analysis' tool is particularly weak, it lacks required parameter descriptions. This server sits in the 'fair/poor' range due to incomplete parameter documentation and absent output schema specifications.
page_analysis tool has incomplete input schema: 'site' parameter present but 'start_date' and 'end_date' documented as required in other tools are absent. Missing required parameter 'page' or 'page_url' to identify which page to analyze. No description of what the tool returns.
Output schemas undocumented for all 7 tools. LLMs cannot determine what fields to expect in responses, which breaks downstream tool chaining and forces agents to guess field names. No documentation of pagination, result limits, or return structure.
No error handling or recovery guidance. Tools accept date strings but do not document format requirements (YYYY-MM-DD is stated but no validation feedback). No guidance on what errors mean or how to retry. Missing actionable error messages for invalid date ranges, missing credentials, API failures, or rate limits.
Recommendations
Document output schemas for all tools. For each, specify return type (object with fields), field names, types (string, number, array), and examples of key fields. Example: gsc_search_analytics returns {queries: [{query: string, clicks: number, impressions: number, ctr: number, position: number}], summary: {total_clicks: number, ...}}.
Add per-parameter descriptions to page_analysis: 'site (required): Which site to analyze (vesivanov or mebelcenter). page_url (required): Full URL of the page to analyze, e.g., https://vesivanov.com/about. Must match pages indexed in GSC/GA4. start_date, end_date (required): Date range in YYYY-MM-DD format, e.g., 2024-01-01 to 2024-12-31.'
Implement error responses that guide recovery. Example: If date range is invalid, return 'Invalid date range: start_date (2024-01-01) must be before end_date (2024-01-01). Use a range of at least 1 day.' If GA4 property is misconfigured, return 'GA4 property for site [mebelcenter] not found. Verify MEBELCENTER_GA4_PROPERTY_ID environment variable is set to a valid property ID.'
Expand descriptions for ga4_traffic_overview and ga4_acquisition_report to clarify their difference. Example: 'ga4_traffic_overview: Returns overall traffic metrics (sessions, users, pageviews) for the date range. ga4_acquisition_report: Breaks traffic down by source/medium (organic, direct, paid search, social) to show acquisition channels.'
Add result limit constraints to parameter descriptions. Example: 'limit (integer): Number of top queries to return (1 - 1000, default 50). Results are sorted by clicks descending.' Add to descriptions: 'This tool returns at most 25 results; use pagination (start_row parameter) for larger datasets if available.'
Score history
Overall score trend
First recorded score · v2 rubric
50/100
Scored
Grade
Overall
Spec posture
Rubric
2026-09-23
D
50
2026-07-28+
v2
Analyze specific page performance across GSC and GA4
Generic tool descriptions: 'Get GA4 traffic overview with key metrics' (60 chars) and 'Get GA4 traffic acquisition data by source/medium' (51 chars) lack context for when to use each tool instead of others. No explanation of what 'overview' contains or how it differs from 'acquisition_report'. Does not state prerequisites (e.g., GA4 property must be configured).
Parameter 'site' enum constraint is hardcoded to ['vesivanov', 'mebelcenter']. In production, site names should be discoverable (list_sites tool) or injected from configuration, not baked into every tool definition. This couples the tool schema to deployment-specific values.
No documentation of result limits or pagination. Tools have 'limit' or 'row_limit' parameters but no description of max values (e.g., 'limit: 1 - 1000'). No mention of whether results are sorted, how ties are broken, or what happens if requesting more rows than available.
'combined_performance_report' does two things: GSC data + GA4 data. Per pattern:tool, this should be split into separate tools or wrapped as a single cohesive analysis if it provides derived insights (e.g., 'queries that drive engagement'). Current naming suggests composition rather than a distinct report type.
combined_performance_report
For page_analysis, clarify scope. Either: (a) split into gsc_page_analysis (GSC metrics) + ga4_page_analysis (GA4 metrics) with separate outputs, or (b) define page_analysis as a single tool that returns {gsc_metrics: {...}, ga4_metrics: {...}} and explicitly document what fields are included.
Inject site configuration from environment or a config file rather than hardcoding ['vesivanov', 'mebelcenter'] in every tool. This improves reusability and allows the server to serve multiple customers without code changes.
Document data dependencies. Example: 'Requires a Google service account with Search Console and Google Analytics 4 API access. Environment variables: GSC_SITE_URL, GA4_PROPERTY_ID for vesivanov; MEBELCENTER_GSC_URL, MEBELCENTER_GA4_PROPERTY_ID for mebelcenter.'
Add idempotency guarantees. All tools are read-only, so state clearly: 'This tool is idempotent, calling it multiple times with the same parameters returns the same result.' This guides agent retry logic.
Include next-step hints in descriptions. Example: 'After calling gsc_search_analytics, use ga4_traffic_overview to correlate search visibility with actual traffic. Or call page_analysis to drill into a specific page's performance.'