Define trace context propagation in OP_MSG

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    • Type: Task
    • Resolution: Unresolved
    • Priority: Major - P3
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    • Affects Version/s: None
    • Component/s: None
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    • Networking & Observability
    • N&O 2026-07-06, N&O 2026-07-20
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      In order to productionize OpenTelemetry, we should include metadata at the transport layer (OP_MSG) rather than command layer (BSON) to ensure we don't need to parse a command prior to tracing a request.

        1.
        		 Add trace context on synchronous egress paths SERVER-129813 Sub-task Closed Michael Nugent 9.0.0-rc1
        2.
        		 Add TraceContext to OpMsg SERVER-129959 Sub-task Closed Timothy Banks 9.0.0-rc1
        3.
        		 Set up trace on ingress SERVER-129960 Sub-task Needs Merge Timothy Banks 9.0.0-rc1
        4.
        		 Add trace context on asynchronous egress paths SERVER-130134 Sub-task Closed Michael Nugent 9.0.0-rc1
        5.
        		 Update idl_parser.h to not include op_msg.h SERVER-130189 Sub-task Closed Unassigned  
        6.
        		 Move all $traceCtx references over to the TraceContextSection IDL type. SERVER-130190 Sub-task Open Unassigned  
        7.
        		 Add command spans to egress SERVER-130312 Sub-task Closed Michael Nugent 9.0.0-rc1
        8.
        		 Clean up telemetry context serialization SERVER-130639 Sub-task Open Unassigned  
        9.
        		 Switch DBDirectClient connection type to local and don't add telemetry context on local connections SERVER-130824 Sub-task Closed Michael Nugent 9.0.0-rc1
        10.
        		 Split dependencies so we don't include protobuf/exporter dependencies just by starting spans SERVER-130825 Sub-task Closed Michael Nugent 9.0.0-rc1

            Assignee:
            Timothy Banks
            Reporter:
            Didier Nadeau
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              Created:
              Updated: