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A comment on Claude Code is unusable for complex engineering tasks with the Feb updates. Parent comment

Re:Claude Code is unusable for complex engineering tasks wit... by dev_l1x_be on Monday April 06, 2026 @04:25PM (#47666560)
It hallucinated a GUID for me instead of using the one in the RFC for webscokets. Fun part was that the beginning was the same. Then it hardcoded the unit tests to be green with the wrong GUID.
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Re:Claude Code is unusable for complex engineering tasks wit... by viktorianer on Tuesday April 07, 2026 @09:36AM (#47675184)
The hallucinated GUIDs are a class of failure that prompt instructions will never reliably prevent. The fix that worked: regex patterns running on every file the agent produces, before anything executes.
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Re:Claude Code is unusable for complex engineering tasks wit... by JamesSwift on Tuesday April 07, 2026 @10:06AM (#47675611)
Well Ive never had the issue before and have hit that / similar issues every few days over the past couple weeks.
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