Four tools with complete Zod schemas and detailed descriptions. Tool names follow verb_noun pattern (list_*, query_*, get_*). Descriptions are comprehensive (194 - 1024 chars) and include usage guidance. All parameters have type definitions and descriptions. Tool annotations present (readOnlyHint, idempotentHint). Key gaps: no documented output schemas, no error handling guidance, no pagination metadata in descriptions, and parameter interdependencies (e.g., from/to vs minutes) not fully clarified.

• Document output schemas for all four tools. Specify the structure of list_projects response (e.g., projects: [{name, region, createTime}], total, nextCursor), query_logs response (logs: [{timestamp, level, message, traceId}], total, nextPage), and get_histograms response (histograms: [{time, count}]).
• Add mutual-exclusivity validation: if both (from/to) and minutes are provided, return a clear error: 'Cannot specify both time range (from/to) and minutes. Use one or the other.' Alternatively, use oneOf in JSON Schema to enforce this at the protocol level.
• Enhance error handling with recovery guidance. E.g., 'Project not found. Call aliyun_log_list_projects to see available projects.' or 'Invalid query syntax. Refer to Aliyun SLS query documentation or try a simpler query.'
• Clarify pagination in descriptions: 'Returns up to [size] results. If more exist, response includes nextCursor or nextPage. Pass it in the next call to fetch the next batch.' Document the exact field name and structure.
• Move environment configuration hints to a separate discovery tool or static documentation. Keep tool descriptions deterministic and independent of runtime configuration.

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

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