App Insights Agents (Preview) dashboard requires deprecated gen_ai.system attribute instead of gen_ai.provider.name

[evmimagina]

Summary

The Agents (Preview) blade in Azure Application Insights requires the deprecated gen_ai.system OpenTelemetry attribute to render GenAI spans. The OpenTelemetry Semantic Conventions have replaced gen_ai.system with gen_ai.provider.name, and SDKs like langchain-azure-ai (AzureAIOpenTelemetryTracer) already emit gen_ai.provider.name correctly — but the dashboard does not read it.

Observed Behavior

• GenAI spans emitted by langchain-azure-ai (v1.0.4) via AzureAIOpenTelemetryTracer include gen_ai.provider.name = "azure.ai.openai" but not gen_ai.system.
• These spans appear correctly in the dependencies table with all gen_ai.* attributes (token counts, operation name, response model, etc.).
• However, the Agents (Preview) view does not display them.
• When we inject gen_ai.system = "openai" via a custom SpanProcessor, the same spans render correctly in the Agents view with type = "GenAI | openai".

Steps to Reproduce

1. Configure azure-monitor-opentelemetry with configure_azure_monitor().
2. Create an AzureAIOpenTelemetryTracer (from langchain-azure-ai>=1.0.4) reusing the global OTel providers.
3. Invoke a LangChain chain that calls Azure OpenAI.
4. Query dependencies table — GenAI spans are present with gen_ai.provider.name but without gen_ai.system.
5. Open App Insights > Agents (Preview) — no data is rendered for these spans.

Expected Behavior

The Agents (Preview) dashboard should read gen_ai.provider.name (the current OpenTelemetry semantic convention) to identify and render GenAI spans, rather than relying exclusively on the deprecated gen_ai.system.

Current Workaround

We use a SpanProcessor that injects gen_ai.system into spans that have gen_ai.* attributes but are missing gen_ai.system:

class _GenAISystemSpanProcessor(SpanProcessor):
    def on_end(self, span):
        if not span.attributes:
            return
        has_genai = any(k.startswith("gen_ai.") for k in span.attributes)
        if has_genai and "gen_ai.system" not in span.attributes:
            span._attributes["gen_ai.system"] = "openai"

Environment

azure-monitor-opentelemetry (latest)
langchain-azure-ai>=1.0.4
Python 3.12
Deployed on AKS and tested locally via Docker Desktop
App Insights resource in West Europe

References

OTel Semantic Conventions: gen_ai.system deprecated in favor of gen_ai.provider.name
Azure AI Foundry: Trace agent frameworks with Application Insights