> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tracelit.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Semantic Logger

> Semantic Logger → Tracelit via OpenTelemetry.

Add an appender that forwards SemanticLogger events to the OpenTelemetry LoggerProvider (or OTLP), then emit:

```ruby theme={null}
SemanticLogger["app"].info("order listed", count: 3)
SemanticLogger["app"].error("payment failed")
```