The dimension name environment duplicates the cloud_provider dimension on line 35. According to line 36, "environment" comes from "spec.environment", but line 35 already captures cloud provider information. This creates ambiguity - if both dimensions capture the same values (aks, eks, gke), one should be removed or their distinction should be clarified. If they serve different purposes, the specification should explain what "spec.environment" represents and how it differs from the detected cloud_provider.

The specification states "Number of nodes (currently always 1)" which suggests this is a hard-coded value in the current implementation. Recording a telemetry metric that is always 1 provides no analytical value and wastes storage. Consider either removing this property until multi-node support is implemented, or clarifying the purpose of collecting this constant value.

The metric name uses "cross_cloud_networking_strategy" which includes "AzureFleet" as a value, but line 59 refers to it as "participating_cluster_count" suggesting multi-cluster coordination. However, "AzureFleet" is Azure-specific terminology. Consider whether "cross_cloud_networking_strategy" is the appropriate name when one of the values is cloud-specific, or if this should be named more generically (e.g., "multi_cluster_networking_strategy").

The property is_primary_cluster (line 114) is inconsistent with the naming pattern used elsewhere. Other boolean indicators in the specification use verb-based naming like tls_enabled (line 75), server_tls_enabled (line 217), client_tls_enabled (line 218), or sidecar_injector_plugin_enabled (line 229). For consistency, consider renaming this to primary_cluster_backup or from_primary_cluster.

The specification lists backup_phase values as starting, running, completed, failed, skipped (line 112), and restore_phase values as starting, running, completed, failed (line 145). The restore phase is missing the skipped state. For consistency and completeness, clarify whether restore operations can be skipped, and if so, include this state in the restore_phase values.

The specification includes both "old_primary_index" and "new_primary_index" properties with example values "e.g., 0, 1, 2" suggesting zero-based indexing. However, this conflicts with the DocumentDB cluster architecture where instances_per_node ranges from 1-3 (line 44). Clarify whether these indices are zero-based (0-2 for 3 instances) or one-based (1-3), and ensure consistency with how instances are identified elsewhere in the system.

The metric documentdb.replication.lag.bytes specifies "aggregated over 2-hour windows" with statistics (min, max, avg) reported every 2 hours. This aggregation period seems quite long for a critical replication health metric. High replication lag can indicate serious issues, and a 2-hour reporting delay could mask problems. Consider documenting the rationale for this long aggregation window, or whether a shorter interval (e.g., 5-15 minutes) would be more appropriate for operational monitoring.

The error type list includes tls-cert but there is no corresponding section documenting TLS certificate-related errors or their handling. Given that TLS is a critical security feature (tracked in lines 75, 212-219), certificate errors deserve explicit documentation. Consider adding details about what types of TLS certificate errors will be tracked (e.g., expiration, validation failures, missing certificates).

The specification states that error messages should be "Sanitized" with "no PII" (line 186), but doesn't provide clear guidance on how to sanitize error messages or what constitutes PII in error contexts. This ambiguity could lead to inconsistent implementations. Consider adding specific examples of sanitization patterns, such as removing resource names, IP addresses, file paths, or user identifiers, and possibly referencing the error categorization approach used elsewhere (line 205).

The specification includes both wal_replica_plugin_enabled (line 230) as a telemetry property, but this plugin is not mentioned anywhere else in the specification. Unlike the sidecar_injector_plugin which is referenced in cluster creation events (line 77), there's no context for what the WAL replica plugin does or when it's relevant. Consider adding documentation about this plugin's purpose and usage context, or if it's not yet implemented, note it as a future feature.

The specification includes vmware-tanzu in the kubernetes_distribution list, but other distributions use lowercase names like openshift and rancher. For consistency, consider whether this should be vmware-tanzu, vmware_tanzu, or tanzu to match the naming convention used for other distributions.

The specification warns to "Monitor dimension cardinality to avoid explosion" (line 293) but doesn't provide specific guidance on acceptable cardinality limits or which dimensions pose the highest risk. Given that cluster_id, backup_id, and namespace_hash are all unique identifiers that could create high cardinality, the specification should provide concrete thresholds or best practices. For example, specify maximum expected values for each dimension or identify which combinations create cardinality concerns.

The specification states that GUIDs should be "generated and persisted in resource annotations" at resource creation time (line 297), but doesn't specify what happens if the annotation is missing or corrupted. For a production system, the specification should address how to handle cases where telemetry annotations are absent (e.g., for resources created before telemetry was implemented, or if annotations are accidentally deleted). Consider adding guidance on whether to generate new GUIDs on-the-fly or skip telemetry for such resources.