Crate defect_obs 

defect-obs: Observability stack.

Extracts tracing initialization and (planned) Langfuse reporting from defect-cli into a single crate. The CLI calls one entry point; future Langfuse / OTLP extensions won’t require changes to CLI assembly.

Observability crate — tracing, metrics, and Langfuse integration.

Current capabilities

• tracing_init::init_tracing: process-level tracing-subscriber initialization.

Planned

• Langfuse reporting (implements defect-agent’s SessionObserver, one trace per turn, reuses defect-http’s HttpStack for ingestion requests).
• OTLP export (reuses defect-config’s OtlpTracingConfig scaffolding).

Re-exports

pub use langfuse::LangfuseObserver;

pub use langfuse::LangfuseSetup;

pub use langfuse::build_observer;

pub use tracing_init::init_tracing;

Modules

langfuse

Langfuse integration — uploads an AgentEvent stream as Langfuse traces, generations, and spans.

tracing_init

tracing-subscriber initialization.