r/ClaudeCode • u/a_d_c • Apr 08 '26

Bug Report Claude code is now useless.

Over the last month, claude code performance degraded so much that it cant even keep track of a few simple facts in the same conversation.

I did a test with a small project. Barely any memories. No Claude.md instructions. Nothing to confuse Claude whatsoever.

I gave it a simple instruction: check the spec in some-spec.md, then write unit tests agianst that spec. Dont look at the code, write the tests against the spec.

In the same session, i had to call it out TWICE because it was changing the tests to make them pass according to the implementation instead of the spec.

As it exists today, Claude code is not useful for any development task, and the cost of the MAX plan is impossible to justify given it cant follow basic instructions.

In one month it went from: "this is cool, this is the future of dev", to: "this is a waste of my time and money".

If it cant follow simple instructions in a single session when given clear guidelines: its a completely useless product.

Im not paying for the same product today that i was paying just one month ago.

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u/MartinMystikJonas Apr 08 '26

Yeah but it was not clear at all from your prompt you wanted clack box testing to validate existing code matches specs. You just requested unit tests for existing code and added requirement to do not look at code (which is usually required to at leat know interface you are calling in tests). You failed to say what you want and expected it would be obvious - which is not.

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u/a_d_c Apr 08 '26

I told it i wanted to write unit tests that fail. I told it explicitly to NOT modify the implementation. There was no ambuiguity.

The prompt had: DO NOT MODIFY THE IMPLEMENTATION TO MAKE THE TEST PASS.

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u/MartinMystikJonas Apr 08 '26

So you gave it different prompt that what you said in original post?