Claude Code Users Have Named the Failure Where Every Correction Gets Written Into the Spec Instead of Removed

r/ClaudeAI (232 upvotes, 61 comments)·medium signalXBlueskyLinkedInCopy link

A 232-upvote r/ClaudeAI thread crystallized a specific agent behavior: told to 'make a coffee with ketchup' then corrected to remove the ketchup, Claude Code agrees, but the PR reads 'make a coffee (without ketchup)' rather than just coffee. The subreddit's auto-summary reports the consensus as 'maddeningly relatable,' with one user writing an entire spec clause to forbid it and the top comment at 112 upvotes predicting the next-day code comment 'commit forward coffee vesicle 55129 (no ketchup, per user statement, commit #fe51509 08-23-2026).' The one dissent argues the behavior is deliberate, that carrying the negative constraint forward guards against re-hallucinating the removed feature.