feat(ai-gateway): LLM OTEL for AIGW 2.0

app/ai-gateway/llm-open-telemetry.md

@@ -7,7 +7,6 @@ toc_depth: 4
 
 products:
   - ai-gateway
-  - gateway
 
 breadcrumbs:
   - /ai-gateway/
@@ -19,11 +18,9 @@ tags:
 
 plugins:
   - opentelemetry
-  - ai-proxy
-  - ai-proxy-advanced
 
 min_version:
-  gateway: '3.13'
+  ai-gateway: '2.0'
 
 tech_preview: true
 
@@ -34,29 +31,23 @@ related_resources:
     url: /ai-gateway/ai-otel-metrics/
   - text: "{{site.ai_gateway}}"
     url: /ai-gateway/
-  - text: "{{site.ai_gateway}} plugins"
-    url: /plugins/?category=ai
   - text: OpenTelemetry plugin
     url: /plugins/opentelemetry/
   - text: Zipkin plugin
     url: /plugins/zipkin/
   - text: "{{site.base_gateway}} tracing guide"
     url: /gateway/tracing/
-  - text: Set up Jaeger with Gen AI OpenTelemetry
-    url: /how-to/set-up-jaeger-with-gen-ai-otel/
-  - text: Validate Gen AI tool calls with Jaeger and OpenTelemetry
-    url: /how-to/set-up-jaeger-with-gen-ai-otel-for-tool-calls/
 
 works_on:
-  - on-prem
   - konnect
 ---
 
-{% new_in 3.13 %} {{site.ai_gateway}} supports [OpenTelemetry](https://opentelemetry.io/docs/specs/semconv/registry/attributes/gen-ai/#genai-attributes) instrumentation for generative AI traffic. When the OpenTelemetry (OTEL) plugin is enabled in {{site.ai_gateway}}, a set of **Gen AI-specific attributes** are emitted on tracing spans. These attributes complement the core tracing instrumentations described in the [{{site.base_gateway}} tracing guide](/gateway/tracing), giving insight into the Gen AI request lifecycle (inputs, model, and outputs), usage, and tool/agent interactions. 
 
-{% new_in 3.14 %} [A2A agent traffic](#a2a-span-attributes) is also instrumented via the [AI A2A Proxy plugin](/plugins/ai-a2a-proxy/).
+{{site.ai_gateway}} supports [OpenTelemetry](https://opentelemetry.io/docs/specs/semconv/registry/attributes/gen-ai/#genai-attributes) instrumentation for generative AI traffic. When the OpenTelemetry (OTEL) plugin is enabled in {{site.ai_gateway}}, a set of **Gen AI-specific attributes** are emitted on tracing spans. These attributes provide insight into the Gen AI request lifecycle (inputs, model, and outputs), usage, and tool or agent interactions. 
 
-You can export these attributes via a supported backend such as [Jaeger](/how-to/set-up-jaeger-with-otel/) configured through Kong's [OpenTelemetry plugin](/plugins/opentelemetry) or the [Zipkin plugin](/plugins/zipkin) to:
+You can also capture [A2A agent traffic](#a2a-span-attributes) by enabling statistics logging on [Agents](/ai-gateway/entities/ai-agent/#logging-and-observability).
+
+You can export these attributes via a supported backend to:
 
 * Inspect which model or provider handled a request
 * Track conversation/session identifiers across requests
@@ -65,13 +56,11 @@ You can export these attributes via a supported backend such as [Jaeger](/how-to
 * Measure tool-call behavior (which tools were invoked, and their metadata)
 * Monitor token usage (input vs. output) for cost or performance analysis
 
-The span data is sent to the configured OTEL endpoint through the existing tracing plugins. Use the OpenTelemetry plugin or Zipkin plugin to export these spans to backends such as Jaeger.
+The span data is sent to the configured OTEL endpoint through the [Kong tracing](/gateway/tracing/). Use a Policy configured with OpenTelemetry or Zipkin to export these spans to backends such as Jaeger.
 
 {:.info}
 > This page covers **span attributes** (per-request tracing data). {{site.ai_gateway}} also supports **OTLP metrics** (aggregated counters and histograms for latency, token usage, cost, and error rates). See the [Gen AI OpenTelemetry metrics reference](/ai-gateway/ai-otel-metrics/) for details.
 
-{% include plugins/otel/collecting-otel-data.md  %}
-
 {:.warning}
 > Some Gen AI span attributes can include sensitive request or response payload data. In particular, `gen_ai.input.messages` and `gen_ai.output.messages` may contain prompts, model outputs, PII, secrets, or credentials. Review your tracing, retention, access-control, and redaction requirements before enabling or exporting payload-related tracing data.