Kubai Kevin

8 articles tagged Microservices

Contract testing is not optional

Why end-to-end tests and API versioning miss integration breaks, how consumer-driven contracts close the gap, when they fit, and a 30-minute first step.

15 min read · 18 October 2026

Memory Systems for Production Agents

How in-memory stores, caches, and stateful services leak context in production agents, plus code, failure modes, and instrumentation to measure it yourself.

11 min read · 15 September 2026

Why scaling agents kills plain logs

Why plain-text logs and unpinned models break down past a handful of agents, and how to add structured logging plus hash verification.

11 min read · 11 September 2026

LLM agents: why monoliths win

Why splitting an LLM agent into micro-services often costs latency, audit continuity and money, and how to measure before you decompose.

11 min read · 10 September 2026

agent code review gap nobody admits

AI-generated PRs pass linting and unit tests yet break production. The gap is environment fidelity, not code quality. Here is how to close it.

13 min read · 27 August 2026

Designing Fintech Backends Around Audit Deadlines

Regulatory audit deadlines change how you should split services. A worked example of transaction boundaries, outbox patterns and WAL-based audit reads.

13 min read · 3 July 2026

AWS Local Zones vs LocalStack: AI microservices in

Compare AWS Local Zones and LocalStack for AI microservices: latency, cost, compliance, and a decision framework, plus how to measure p99 at the edge.

14 min read · 28 June 2026

Monolith to services without a rewrite

Most monolith-to-services migrations fail on data coupling, not code structure. Here is how to audit coupling and measure the latency tax before extracting.

14 min read · 27 June 2026