diff --git a/.generator/schemas/v2/openapi.yaml b/.generator/schemas/v2/openapi.yaml
index 3bec741a1267..b3d5ae11ef93 100644
--- a/.generator/schemas/v2/openapi.yaml
+++ b/.generator/schemas/v2/openapi.yaml
@@ -13578,6 +13578,7 @@ components:
           example:
           - ''
           items:
+            description: A tag string in `key:value` format.
             type: string
           type: array
       required:
@@ -44821,7 +44822,7 @@ components:
         Protocol (OTLP) over gRPC and HTTP.
 
 
-        **Supported pipeline types:** logs, metrics'
+        **Supported pipeline types:** logs'
       properties:
         grpc_address_key:
           description: Environment variable name containing the gRPC server address
@@ -44851,7 +44852,6 @@ components:
       type: object
       x-pipeline-types:
       - logs
-      - metrics
     ObservabilityPipelineOpentelemetrySourceType:
       default: opentelemetry
       description: The source type. The value should always be `opentelemetry`.
@@ -72368,6 +72368,7 @@ components:
         tags:
           description: Tags of the workflow.
           items:
+            description: A tag string in `key:value` format.
             type: string
           type: array
         updatedAt:
@@ -72441,6 +72442,7 @@ components:
         tags:
           description: Tags of the workflow.
           items:
+            description: A tag string in `key:value` format.
             type: string
           type: array
         updatedAt:
diff --git a/cassettes/features/v2/observability_pipelines/Validate-a-metrics-pipeline-with-opentelemetry-source-returns-OK-response.frozen b/cassettes/features/v2/observability_pipelines/Validate-a-metrics-pipeline-with-opentelemetry-source-returns-OK-response.frozen
deleted file mode 100644
index 9218d08a363b..000000000000
--- a/cassettes/features/v2/observability_pipelines/Validate-a-metrics-pipeline-with-opentelemetry-source-returns-OK-response.frozen
+++ /dev/null
@@ -1 +0,0 @@
-2026-03-10T16:11:47.487Z
\ No newline at end of file
diff --git a/cassettes/features/v2/observability_pipelines/Validate-a-metrics-pipeline-with-opentelemetry-source-returns-OK-response.yml b/cassettes/features/v2/observability_pipelines/Validate-a-metrics-pipeline-with-opentelemetry-source-returns-OK-response.yml
deleted file mode 100644
index 1c8db742f78a..000000000000
--- a/cassettes/features/v2/observability_pipelines/Validate-a-metrics-pipeline-with-opentelemetry-source-returns-OK-response.yml
+++ /dev/null
@@ -1,27 +0,0 @@
-http_interactions:
-- recorded_at: Tue, 10 Mar 2026 16:11:47 GMT
-  request:
-    body:
-      encoding: UTF-8
-      string: '{"data":{"attributes":{"config":{"destinations":[{"id":"datadog-metrics-destination","inputs":["my-processor-group"],"type":"datadog_metrics"}],"pipeline_type":"metrics","processor_groups":[{"enabled":true,"id":"my-processor-group","include":"*","inputs":["opentelemetry-source"],"processors":[{"enabled":true,"id":"filter-processor","include":"env:production","type":"filter"}]}],"sources":[{"id":"opentelemetry-source","type":"opentelemetry"}]},"name":"Metrics
-        OTel Pipeline"},"type":"pipelines"}}'
-    headers:
-      Accept:
-      - application/json
-      Content-Type:
-      - application/json
-    method: POST
-    uri: https://api.datadoghq.com/api/v2/obs-pipelines/pipelines/validate
-  response:
-    body:
-      encoding: UTF-8
-      string: '{"errors":[]}
-
-        '
-    headers:
-      Content-Type:
-      - application/vnd.api+json
-    status:
-      code: 200
-      message: OK
-recorded_with: VCR 6.0.0
diff --git a/examples/v2/observability-pipelines/ValidatePipeline_884022323.rb b/examples/v2/observability-pipelines/ValidatePipeline_884022323.rb
deleted file mode 100644
index 0a6c3d0e78a5..000000000000
--- a/examples/v2/observability-pipelines/ValidatePipeline_884022323.rb
+++ /dev/null
@@ -1,50 +0,0 @@
-# Validate a metrics pipeline with opentelemetry source returns "OK" response
-
-require "datadog_api_client"
-api_instance = DatadogAPIClient::V2::ObservabilityPipelinesAPI.new
-
-body = DatadogAPIClient::V2::ObservabilityPipelineSpec.new({
-  data: DatadogAPIClient::V2::ObservabilityPipelineSpecData.new({
-    attributes: DatadogAPIClient::V2::ObservabilityPipelineDataAttributes.new({
-      config: DatadogAPIClient::V2::ObservabilityPipelineConfig.new({
-        pipeline_type: DatadogAPIClient::V2::ObservabilityPipelineConfigPipelineType::METRICS,
-        destinations: [
-          DatadogAPIClient::V2::ObservabilityPipelineDatadogMetricsDestination.new({
-            id: "datadog-metrics-destination",
-            inputs: [
-              "my-processor-group",
-            ],
-            type: DatadogAPIClient::V2::ObservabilityPipelineDatadogMetricsDestinationType::DATADOG_METRICS,
-          }),
-        ],
-        processor_groups: [
-          DatadogAPIClient::V2::ObservabilityPipelineConfigProcessorGroup.new({
-            enabled: true,
-            id: "my-processor-group",
-            include: "*",
-            inputs: [
-              "opentelemetry-source",
-            ],
-            processors: [
-              DatadogAPIClient::V2::ObservabilityPipelineFilterProcessor.new({
-                enabled: true,
-                id: "filter-processor",
-                include: "env:production",
-                type: DatadogAPIClient::V2::ObservabilityPipelineFilterProcessorType::FILTER,
-              }),
-            ],
-          }),
-        ],
-        sources: [
-          DatadogAPIClient::V2::ObservabilityPipelineOpentelemetrySource.new({
-            id: "opentelemetry-source",
-            type: DatadogAPIClient::V2::ObservabilityPipelineOpentelemetrySourceType::OPENTELEMETRY,
-          }),
-        ],
-      }),
-      name: "Metrics OTel Pipeline",
-    }),
-    type: "pipelines",
-  }),
-})
-p api_instance.validate_pipeline(body)
diff --git a/features/v2/observability_pipelines.feature b/features/v2/observability_pipelines.feature
index e272303955a0..bf90c06c1399 100644
--- a/features/v2/observability_pipelines.feature
+++ b/features/v2/observability_pipelines.feature
@@ -149,14 +149,6 @@ Feature: Observability Pipelines
     And the response "data.attributes.config.destinations" has length 1
     And the response "data.attributes.config.destinations[0].id" is equal to "updated-datadog-logs-destination-id"
 
-  @team:DataDog/observability-pipelines
-  Scenario: Validate a metrics pipeline with opentelemetry source returns "OK" response
-    Given new "ValidatePipeline" request
-    And body with value {"data": {"attributes": {"config": {"pipeline_type": "metrics", "destinations": [{"id": "datadog-metrics-destination", "inputs": ["my-processor-group"], "type": "datadog_metrics"}], "processor_groups": [{"enabled": true, "id": "my-processor-group", "include": "*", "inputs": ["opentelemetry-source"], "processors": [{"enabled": true, "id": "filter-processor", "include": "env:production", "type": "filter"}]}], "sources": [{"id": "opentelemetry-source", "type": "opentelemetry"}]}, "name": "Metrics OTel Pipeline"}, "type": "pipelines"}}
-    When the request is sent
-    Then the response status is 200 OK
-    And the response "errors" has length 0
-
   @team:DataDog/observability-pipelines
   Scenario: Validate an observability pipeline returns "Bad Request" response
     Given new "ValidatePipeline" request
diff --git a/lib/datadog_api_client/v2/models/observability_pipeline_opentelemetry_source.rb b/lib/datadog_api_client/v2/models/observability_pipeline_opentelemetry_source.rb
index 6df608ca1081..8404b77f9341 100644
--- a/lib/datadog_api_client/v2/models/observability_pipeline_opentelemetry_source.rb
+++ b/lib/datadog_api_client/v2/models/observability_pipeline_opentelemetry_source.rb
@@ -19,7 +19,7 @@
 module DatadogAPIClient::V2
   # The `opentelemetry` source receives telemetry data using the OpenTelemetry Protocol (OTLP) over gRPC and HTTP.
   # 
-  # **Supported pipeline types:** logs, metrics
+  # **Supported pipeline types:** logs
   class ObservabilityPipelineOpentelemetrySource
     include BaseGenericModel