Non-Blocking Agent Tracing: Async Queues Keep Observability Off the Critical Path

The author argues that agent observability should not slow down the agent, since synchronous tracing makes telemetry part of the system being debugged. Their framework instead records trace events into a bounded in-memory queue that never blocks execution. A single background thread drains that queue in batches and writes them to local SQLite, which a local dashboard reads from. Events are dropped and counted when the queue fills or writes fail, trading completeness for guaranteed agent latency. The design aims to make tracing cheap enough to leave on by default, without requiring an external SaaS account or collector.