Claude Code is unusable for complex engineering tasks with the Feb updates

https://github.com/anthropics/claude-code/issues/42796

[MODEL] Claude Code is unusable for complex engineering tasks with the Feb updates · Issue #42796 · anthropics/claude-code

Preflight Checklist I have searched existing issues for similar behavior reports This report does NOT contain sensitive information (API keys, passwords, etc.) Type of Behavior Issue Other unexpect...

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Not claude code specific, but I've been noticing this on Opus 4.6 models through Copilot and others as well. Whenever the phrase "simplest fix" appears, it's time to pull the emergency break. This has gotten much, much worse over the past few weeks. It will produce completely useless code, knowingly (because up to that phrase the reasoning was correct) breaking things.

Today another thing started happening which are phrases like "I've been burning too many tokens" or "this has taken too many turns". Which ironically takes more tokens of custom instructions to override.

Also claude itself is partially down right now (Arp 6, 6pm CEST): https://status.claude.com/

Claude Status

Welcome to Claude's home for real-time and historical data on system performance.

That helps explain why my sessions signed themselves out and won't log back in.

I just experienced this some time ago and could not sign in still.

Their status page shows everything is okay.