The Instrumentation Budget Per New Service
Every new service has an observability budget. The expected metrics, logs, traces, and the launch gate.
Default budget
20 metrics per service: 5 of golden signals, 15 of business metrics. More requires justification.
Log volume: 100GB/month default. Higher requires capacity planning.
Launch gate
Service cannot launch without: golden-signal metrics, error logs, distributed tracing for entry points.
Deviation requires explicit waiver. Most don't bother and just instrument properly.
Why this matters
Without policy, services launch under-instrumented. Day-1 incidents are debug-blind.
Policy aligns incentives. Engineers instrument to ship, not as an afterthought.