Recorder TypeScript

This tool records runtime events from TypeScript applications to enable observable telemetry for debugging, profiling, and reliability analysis. It instruments code paths to emit structured events with timestamps, context, and optional stack traces. Conceptually, it wraps target functions or modules to log start/end times and computes durations, counts, and throughput across a run. Benefits include faster root-cause analysis, better understanding of hot paths, and the ability to correlate events across asynchronous tasks via correlation IDs. Core features include a consistent event schema, high-resolution timing, and export capability. Advanced capabilities allow sampling to reduce overhead, module filtering to target critical areas, and aggregation to produce latency histograms or per-endpoint metrics. Use cases span backend services, frontend components, and cross-service tracing scenarios where latency and error patterns matter. The tool emphasizes non-intrusive instrumentation, compatibility with Node.js and modern browsers, and straightforward JSON/NDJSON exports for downstream analytics. Core value lies in turning ad hoc observations into reproducible telemetry that teams can act on, without the overhead of a full profiler.