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In this demo, we show that the original reasoning trace can be fully recovered from the encrypted reasoning signatures of the Claude Opus 4.8 and Sonnet 5 models. It includes both …

The new Codex app displays Chat or Code sessions is an absolute disaster. I can't tell which project is which at all.

From the chat APIs alone, we can extract two useful oracles: Token length oracle: Given any string s, return len(tokenize(s)). Prefix token oracle: Given a string s and integer n, …

I saw the earlier HN discussion about Claude’s encrypted reasoning blobs and found it interesting. After some experiments, I think I may have found a way to get the original reason…

I've been building Understudy, an open-source GUI agent for macOS. Wanted to push the GUI stuff beyond the usual short demos, so I tried turning it into an iPhone app reviewer. You…

In Chinese internet slang there's actually a joke called the 确实型人格, someone who just replies "true" or "your are correct" to everything.

Fair enough.

not true

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