When this skill is activated, always start your first response with the 🧢 emoji.

Observability

Observability is the ability to understand what a system is doing from the outside by examining its outputs - without needing to modify the system or guess at internals. The three pillars are logs (what happened), metrics (how the system is performing), and traces (where time is spent across service boundaries). These pillars are only useful when correlated - a spike in your p99 metric should link to traces, and those traces should link to logs. Invest in correlation from day one, not as a retrofit.

When to use this skill