Crate cgn_telemetry 

Telemetry: tracing, OTLP export, and Prometheus exposition.

Every Cognitora binary calls init exactly once at startup and then registers metrics against registry. The optional admin HTTP server (returned by admin_router) exposes /metrics, /healthz, and /readyz for use by the orchestrator and load balancers.

Re-exports

pub use prometheus;

pub use tracing;

Macros

counter

Convenience macro: register a counter on the workspace registry.

gauge

Convenience macro: register a gauge on the workspace registry.

latency_histogram

Convenience macro: register a histogram on the workspace registry with latency buckets suitable for tail-sensitive RPCs (50µs..2s).

Functions

admin_router

Build an admin axum router with /metrics, /healthz, /readyz.

encode_metrics

Encode the registry as Prometheus exposition text.

init

Initialise structured tracing. Idempotent; safe to call from tests.

registry

Workspace-wide Prometheus registry. All custom metrics register here.