https://avelino.run/tags/coordination/Recent content in Coordination on Thiago AvelinoHugoen-us© AvelinoFri, 24 Apr 2026 08:34:32 -0300https://avelino.run/the-bug-was-coordination-not-code/Fri, 24 Apr 2026 00:00:00 +0000https://avelino.run/the-bug-was-coordination-not-code/<p>Three teams made reasonable decisions. The product broke. That's not an engineering failure - it's what happens when you confuse process with overlap.</p> <h2 id="the-postmortem-is-honest-about-the-wrong-thing">The postmortem is honest about the wrong thing</h2> <p>Anthropic published a postmortem on the Claude Code regression. Worth reading in full. Three separate changes, different teams, different weeks, that together looked like model degradation:</p> <p>Product switched default reasoning effort from <code>high</code> to <code>medium</code> - latency was killing the UX. Engineering shipped a caching optimization to reduce cost on session resume. Another team added a system prompt line to control verbosity on the new model.</p>