OpenTelemetry SDK
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    Variable METRIC_MCP_CLIENT_SESSION_DURATIONConst Experimental

    METRIC_MCP_CLIENT_SESSION_DURATION: "mcp.client.session.duration" = ...

    The duration of the MCP session as observed on the MCP client.

    This metric is experimental and is subject to breaking changes in minor releases of @opentelemetry/semantic-conventions.