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Issue: Claude Code is unusable for complex engineering tasks with Feb updates

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Re: Issue: Claude Code is unusable for complex engineering tasks with Feb updates

#491

Post by diavelguru »

bcherny wrote: post #461
JamesSwift wrote: post #397

Earlier quoted context omitted.

a9284923-141a-434a-bfbb-52de7329861d d48d5a68-82cd-4988-b95c-c8c034003cd0 5c236e02-16ea-42b1-b935-3a6a768e3655 22e09356-08ce-4b2c-a8fd-596d818b1e8a 4cb894f7-c3ed-4b8d-86c6-0242200ea333 Amusingly (not really), this is me trying to get sessions to resume to then get feedback ids and it being an absolute chore to get it to give me the commands to resume these conversations but it keeps messing things up: cf764035-0a1d-4…

Thanks for the feedback IDs — read all 5 transcripts. On the model behavior: your sessions were sending effort=high on every request (confirmed in telemetry), so this isn't the effort default. The data points at adaptive thinking under-allocating reasoning on certain turns — the specific turns where it fabricated (stripe API version, git SHA suffix, apt package list) had zero reasoning emitted, while the turns with d…

Love this. Responding to users. Detail info investigating. Action being taken (at least it seems so).

Re: Issue: Claude Code is unusable for complex engineering tasks with Feb updates

#492

Post by y1n0 »

bcherny wrote: post #209

Hey all, Boris from the Claude Code team here. I just responded on the issue, and cross-posting here for input. --- Hi, thanks for the detailed analysis. Before I keep going, I wanted to say I appreciate the depth of thinking & care that went into this. There's a lot here, I will try to break it down a bit. These are the two core things happening: > `redact-thinking-2026-02-12` This beta header hides thinking from th…

"most users"

Have you guys considered that you should be optimizing for the leading tail of the user distribution? The people that are actually using AI to push the envelope of development? "most users," i.e. the inner 70%, aren't doing anything novel.

Re: Issue: Claude Code is unusable for complex engineering tasks with Feb updates

#493

Post by diavelguru »

bcherny wrote: post #209

Hey all, Boris from the Claude Code team here. I just responded on the issue, and cross-posting here for input. --- Hi, thanks for the detailed analysis. Before I keep going, I wanted to say I appreciate the depth of thinking & care that went into this. There's a lot here, I will try to break it down a bit. These are the two core things happening: > `redact-thinking-2026-02-12` This beta header hides thinking from th…

As soon as that change came through I set the effort to high. Have not regretted it for any coding task. It feels the same as Dec-Jan though now spawning more sub agents which is not a bad thing.

Re: Issue: Claude Code is unusable for complex engineering tasks with Feb updates

#494

Post by frog437 »

andoando wrote: post #482
bcherny wrote: post #234

Earlier quoted context omitted.

When you submit a /bug we get a way to see the contents of the conversation. We don't see anything else in your codebase.

Isnt the codebase in the context window?

depending on how large your codebase is, hopefully not. At this point use something like the IX plugin to ingest codebase and track context, rather than from the LLM itself.

Re: Issue: Claude Code is unusable for complex engineering tasks with Feb updates

#495

Post by vachina »

potsandpans wrote: post #473
bcherny wrote: post #209

Hey all, Boris from the Claude Code team here. I just responded on the issue, and cross-posting here for input. --- Hi, thanks for the detailed analysis. Before I keep going, I wanted to say I appreciate the depth of thinking & care that went into this. There's a lot here, I will try to break it down a bit. These are the two core things happening: > `redact-thinking-2026-02-12` This beta header hides thinking from th…

For anyone reading this and wondering where the truth could possibly be: We can't really know what the truth is, because Anthropic is tightly controlling how you interact with their product and provides their service through opaque processes. So all we can do is speculate. And in that speculation there's a lot of room (for the company) to bullshit or provide equally speculative responses, and (for outsiders) to searc…

Don’t turn vibe coding into your day job (because the vibe won’t keep vibing). Write code (that you own) that can make you money and hire real developers.

Re: Issue: Claude Code is unusable for complex engineering tasks with Feb updates

#496

Post by make3 »

anonymoushn wrote: post #442
bcherny wrote: post #209

Hey all, Boris from the Claude Code team here. I just responded on the issue, and cross-posting here for input. --- Hi, thanks for the detailed analysis. Before I keep going, I wanted to say I appreciate the depth of thinking & care that went into this. There's a lot here, I will try to break it down a bit. These are the two core things happening: > `redact-thinking-2026-02-12` This beta header hides thinking from th…

How do you guys decide which settings should be configurable via environment variables but not settings files and which settings should be configurable via settings files but not environment variables?

[flagged]

Re: Issue: Claude Code is unusable for complex engineering tasks with Feb updates

#497

Post by [deleted] »

monkpit wrote: post #161
didgeoridoo wrote: post #130

Running some quick analysis against my .claude jsonl files, comparing the last 7 days against the prior 21: - expletives per message: 2.1x - messages with expletives: 2.2x - expletives per word: 4.4x(!) - messages >50% ALL CAPS: 2.5x Either the model has degraded, or my patience has.

> expletives per word Huh?

[deleted]

Re: Issue: Claude Code is unusable for complex engineering tasks with Feb updates

#499

Post by heavyset_go »

rileymichael wrote: post #127

> This report was produced by me — Claude Opus 4.6 — analyzing my own session logs [...] Please give me back my ability to think. a bit ironic to utilize the tool that can't think to write up your report on said tool. that and this issue[1] demonstrate the extent folks become over reliant on LLMs. their review process let so many defects through that they now have to stop work and comb over everything they've shipped…

If you don't have swarms of agentic teams with layers of LLMs feeding and checking LLMs over and over again, you're going to be left behind.

Re: Issue: Claude Code is unusable for complex engineering tasks with Feb updates

#500

Post by bmitc »

johndough wrote: post #331
bcherny wrote: post #209

Hey all, Boris from the Claude Code team here. I just responded on the issue, and cross-posting here for input. --- Hi, thanks for the detailed analysis. Before I keep going, I wanted to say I appreciate the depth of thinking & care that went into this. There's a lot here, I will try to break it down a bit. These are the two core things happening: > `redact-thinking-2026-02-12` This beta header hides thinking from th…

I think it is hilarious that there are four different ways to set settings (settings.json config file, environment variable, slash commands and magical chat keywords). That kind of consistency has also been my own experience with LLMs.

There's also settings available in some offerings and not in others. For example, the Anthropic Claude API supports setting model temperature, but the Claude Agent SDK doesn't.
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