Diagnose and harden production systems using stability patterns, capacity planning, and chaos engineering.
npx skills add https://github.com/HafidJoss/Lummy --skill release-it-hafidjoss
Please help me install this Agent Skill. Skill: release-it Source: https://github.com/HafidJoss/Lummy/tree/main/agent/skills/release-it Command: npx skills add https://github.com/HafidJoss/Lummy --skill release-it-hafidjoss
High-intent search queries and answers about installing and using this skill.
Prevent cascading failures by combining circuit breakers, timeouts, and bulkheads at every integration point. Circuit breakers stop calls to failing dependencies, timeouts free blocked threads, and bulkheads isolate resource pools so one failing dependency cannot drain the whole system.
Implement a circuit breaker with three states: closed, open, and half-open. Trip it after a threshold such as 5 failures in 60 seconds, then test recovery with limited traffic after 30 seconds. Combine it with connect and read timeouts on every outbound call.
Blue-green deployment switches all traffic between two full environments, giving instant rollback but requiring double infrastructure. Canary releases route a small traffic percentage to the new version with automated metric evaluation, minimizing risk exposure at lower infrastructure cost.
Size connection pools from measured concurrency, not defaults: set the pool to p99 active connections plus 20-30% headroom. Always configure checkout timeouts, maximum connection lifetime, and leave headroom below the database's own connection limit for admin access.
Avoid production chaos experiments during peak traffic, without an emergency stop mechanism, or before validating the experiment in staging. Start with minimal blast radius such as a single instance or canary population, and require explicit authorization with rollback plans.
musher-devGenerate architecture sketch documents defining solution boundaries, components, data shapes, integrations, flows, and risks.
alexander-danilenkoDefine SLOs and SLIs with Prometheus/Grafana queries and error budget policies.
rachmadideniDesign data-intensive systems using storage engines, replication, partitioning, and consistency models.
Sumeet138Configure Istio traffic management policies for routing and resilience.
