This skill should be used when the user asks to "add a new integration", "instrument a library", "add instrumentation for", "create instrumentation", "new dd-trace integration", "add tracing for", "TracingPlugin", "DatabasePlugin", "CachePlugin", "ClientPlugin", "ServerPlugin", "CompositePlugin", "ConsumerPlugin", "ProducerPlugin", "addHook", "shimmer.wrap", "orchestrion", "bindStart", "bindFinish", "startSpan", "diagnostic channel", "runStores", "reference plugin", "example plugin", "similar integration", or needs to build, modify, or debug the instrumentation and plugin layers for a third-party library in dd-trace-js.