Why SDD Breaks Down in Microservices—Part 3: Distributed Systems Need Distributed Context

This story was originally published on HackerNoon at: https://hackernoon.com/why-sdd-breaks-down-in-microservicespart-3-distributed-systems-need-distributed-context. Spec-driven development in microservices: how machine-readable architecture contracts give an LLM the context to plan a feature before writing code. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #software-architecture, #microservices, #ai-assisted-coding, #spec-driven-development, #claude-code, #coding-with-ai, #go-microservices, #system-design, and more. This story was written by: @krus210. Learn more about this writer by checking @krus210's about page, and for more stories, please visit hackernoon.com. In microservices, spec-driven development with an LLM needs architecture-level context, not just local specs. This article shows how machine-readable service contracts and a plan-first workflow (archspec, a Claude Code plugin) give the model that context: it resolves cross-service rules while planning, catches them before any code, and turns each one into a test. It's a practical way to make AI-driven specs hold up across services.