Glossary term
What is kill switch? Meaning for developers
In Practical Design Problems
A flag that switches a feature off at once during an incident.
Learn it properly · Practical Design ProblemsLesson 7: Design an LRU Cache, Idempotent Payments and Other Classic Mini-ProblemsShort worked designs: an LRU cache, idempotency keys, a job queue with retries and backoff, and feature flags.In AI Engineering
A runtime setting that turns a feature off in seconds without a deploy.
Learn it properly · AI EngineeringLesson 4: Observability and Guardrails for LLM Features in ProductionWhat to log and what never to log, spans, redaction, schema validation, a circuit breaker, a kill switch, prompt versions and an incident playbook.