1 min lesson
Cross-provider failover
Tell someone how to act on this idea: "The JD sets a hard bar: no single provider outage causes user-visible degradation."
Step 1 of 3
The JD sets a hard bar: no single provider outage causes user-visible degradation. When Anthropic browns out, Tab and Agent should keep working and most users should never notice.
Failover is layered defense, not one trick. Health-based routing keeps traffic off a sick provider before a request is even sent. Circuit breakers stop you from hammering a dying upstream. Bounded retries with jitter recover transient blips. A fallback ladder catches the rest. Each layer covers a failure the others miss.
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Full explanation
The Failover Stack, by How Much it Saves You
Interactive diagram. Tab through its regions; each focused region shows its detail in the panel below.
Ranked by how broad an outage each layer can absorb - earlier layers prevent failures the later ones only mop up.