build break and bad span export shape in src/platform/otel/node/fileExporters.ts:20-35.

    serializeSpan() is using old OTel v1 ReadableSpan fields: span.instrumentationLibrary and span.parentSpanId. This repo resolves ReadableSpan from OTel v2, where those are instrumentationScope and parentSpanContext
    (node_modules/@opentelemetry/sdk-trace-node/node_modules/@opentelemetry/sdk-trace-base/build/src/export/ReadableSpan.d.ts:5-23).

Author: pmcgannon22

src/platform/otel/node/fileExporters.ts

@@ -26,12 +26,12 @@ function serializeSpan(span: ReadableSpan): Record<string, unknown> {
 		resource: {
 			attributes: span.resource.attributes,
 		},
-		instrumentationScope: span.instrumentationLibrary,
+		instrumentationScope: span.instrumentationScope,
 		traceId: spanContext.traceId,
 		spanId: spanContext.spanId,
 		traceFlags: spanContext.traceFlags,
 		traceState: spanContext.traceState?.serialize(),
-		parentSpanId: span.parentSpanId,
+		parentSpanId: span.parentSpanContext?.spanId,
 		name: span.name,
 		kind: span.kind,
 		startTime: span.startTime,

src/platform/otel/node/test/fileExporters.spec.ts

@@ -58,17 +58,18 @@ describe('FileSpanExporter', () => {
 		class FakeReadableSpan {
 			readonly #ctx = { traceId: 'trace-id', spanId: 'span-id', traceFlags: 1, traceState: undefined };
 			readonly #resource = { attributes: { 'service.name': 'copilot-chat' } };
-			readonly #instrumentationLibrary = { name: 'copilot-chat', version: '0.44.0' };
+			readonly #instrumentationScope = { name: 'copilot-chat', version: '0.44.0' };
 			readonly #status = { code: 1 };
 			readonly #attributes = { a: 1 };
 			readonly #links: unknown[] = [];
 			readonly #events: unknown[] = [];
 			readonly #time: [number, number] = [1, 2];
+			readonly #parentSpanContext = { traceId: 'trace-id', spanId: 'parent-span-id', traceFlags: 1, traceState: undefined };
 
 			spanContext() { return this.#ctx; }
 			get resource() { return this.#resource; }
-			get instrumentationLibrary() { return this.#instrumentationLibrary; }
-			get parentSpanId() { return undefined; }
+			get instrumentationScope() { return this.#instrumentationScope; }
+			get parentSpanContext() { return this.#parentSpanContext; }
 			get name() { return 'hidden-span'; }
 			get kind() { return 0; }
 			get startTime() { return this.#time; }
@@ -96,6 +97,8 @@ describe('FileSpanExporter', () => {
 		const parsed = JSON.parse(content.trim());
 		expect(parsed.name).toBe('hidden-span');
 		expect(parsed.traceId).toBe('trace-id');
+		expect(parsed.parentSpanId).toBe('parent-span-id');
+		expect(parsed.instrumentationScope).toEqual({ name: 'copilot-chat', version: '0.44.0' });
 		expect(parsed.resource.attributes).toEqual({ 'service.name': 'copilot-chat' });
 		expect(parsed.attributes).toEqual({ a: 1 });
 	});