René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Found different `gen_ai.conversation.id` value in invoke_agent LangGraph span","articleBody":"### Describe the Bug\n\nEDIT on 15 June: I am using `auto_instrument()` from `sap-cloud-sdk`, so the span is auto generated by the tracer instead of using the custom `invoke_agent_span()` function mentioned in this [user guide](https://github.com/SAP/cloud-sdk-python/blob/main/src/sap_cloud_sdk/core/telemetry/user-guide.md).\n\nBased on this [All-in on AI decision](https://github.tools.sap/CPA/landing-page-content/blob/main/40_Results/all-in-on-ai-decisions/conversation-id-baggage-for-online-agent-evaluation.md), the calling system (that calls an agent) must generate a conversation identifier and set it in the W3C baggage header on every request within a conversation. However, when I use `sap-cloud-sdk` to instrument a LangGraph agent, there is a different value of `gen_ai.conversation.id` in the invoke_agent LangGraph span set by `traceloop`, which derives the conversation ID from the context id of the A2A server of a LangGraph agent. When `gen_ai.conversation.id` is set in the W3C baggage header, all spans have the same `gen_ai.conversation.id` value **EXCEPT** the invoke_agent LangGraph span, which is an inconsistency.\n\n### Steps to Reproduce\n\n1. Run a LangGraph agent in https://github.tools.sap/Montana-AI-Singapore/a2a-server-samples/tree/main/appfnd-langgraph-basic and use `auto_instrument()` from `sap-cloud-sdk`\n2. Copy `.env.example` and fill up the variables accordingly. I used a local MLflow server and sent the traces via http/protobuf\n3. Run the agent `uv run app` and send a message to the agent and inject `gen_ai.conversation.id` in the W3C baggage header\n\nThis is how the trace spans look:\nRoot span: `gen_ai.conversation.id == 48e35936-82ab-4f1a-beaf-b2fa4273ac5e`, generated by the calling system\n\u003cimg width=\"1529\" height=\"766\" alt=\"Image\" src=\"https://github.com/user-attachments/assets/61dbce11-3a95-4fb1-ba4f-578f79f25aa3\" /\u003e\n\ninvoke_agent LangGraph span: `gen_ai.conversation.id == b01915bf-48a2-4f8b-9681-19bc166553c5`\n\u003cimg width=\"1529\" height=\"777\" alt=\"Image\" src=\"https://github.com/user-attachments/assets/31164be9-35f5-4438-ac9f-3adc2fbd1195\" /\u003e\n\n### Expected Behavior\n\nI expect to see consistent values of `gen_ai.conversation.id` in all the spans in my trace, following the decision on All-in on AI. This could mean:\n- blocking traceloop from setting `gen_ai.conversation.id` from `traceloop.association.properties.thread_id`, or\n- overriding the value in invoke_agent LangGraph span such that the value is consistent.\n\n### Screenshots\n\n_No response_\n\n### Used Versions\n\n- Python version via `python --version`: 3.12.12\n- SAP Cloud SDK for Python version: 0.19.3, but tested on 0.25.1 in a colleague's env\n- Framework version (if applicable, e.g., Flask, FastAPI): ...\n\n\u003cdetails\u003e\u003csummary\u003eInstalled packages via \u003ccode\u003epip list\u003c/code\u003e or \u003ccode\u003euv pip list\u003c/code\u003e\u003c/summary\u003e\n\n```\nPackage list here\n```\n\u003c/details\u003e\n\n\n### Code Examples\n\n```python\n# Your code here\n```\n\n\n### Stack Trace\n\n_No response_\n\n### Log File\n\n\u003cdetails\u003e\u003csummary\u003eLog file\u003c/summary\u003e\n...\n\u003c/details\u003e\n\n\n### Affected Development Phase\n\nDevelopment\n\n### Impact\n\nImpaired\n\n### Timeline\n\n_No response_","author":{"url":"https://github.com/pasainatan","@type":"Person","name":"pasainatan"},"datePublished":"2026-06-12T02:30:13.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/157/cloud-sdk-python/issues/157"}