Resilience

Automation vs autonomy; 5-level hierarchy (manual → autonomous); safety properties (rate limiting, idempotency); MySQL on Borg case study

Which stability pattern when; selection decision tree (outgoing call, incoming request, internal pipeline, system edge, automation, resource pooling); pattern × antipattern matrix; composition order (timeout first, then bulkhead, then breaker, then retry, etc.); anti-patterns of pattern composition

Coherent navigation hub for Nygard's stability pattern set; failure-arresting (timeout/circuit-breaker/bulkhead), load-handling (shed load/backpressure/handshaking), defensive (fail fast/let it crash/steady state/retry), and architectural (decoupling middleware/test harnesses/governor); pattern composition; antipatterns they defend against