Postmortem on ArkNillhttps://arknill.github.io/tags/postmortem/Recent content in Postmortem on ArkNillHugoenThu, 23 Apr 2026 00:00:00 +0000Anthropic's Postmortem Told Half the Truthhttps://arknill.github.io/blog/anthropic-postmortem-half-truth/Thu, 23 Apr 2026 00:00:00 +0000https://arknill.github.io/blog/anthropic-postmortem-half-truth/Anthropic admitted 3 harness bugs caused Claude Code degradation. The bugs are real. But the postmortem strategically scoped out model-level regressions, ignored 9+ open issues, and all three 'bugs' happen to reduce Anthropic's serving costs. Here's what the other half looks like.Opus 4.7 Postmortem: What the Changelog Didn't Sayhttps://arknill.github.io/blog/opus-47-postmortem-what-changelog-didnt-say/Wed, 22 Apr 2026 00:00:00 +0000https://arknill.github.io/blog/opus-47-postmortem-what-changelog-didnt-say/Anthropic admitted three product-layer bugs that degraded Claude Code for 48 days. Cross-checking the postmortem against the CHANGELOG reveals a structural transparency gap — 2 of 3 bugs had zero documentation. And 5 new issues persist beyond the postmortem's scope.