Quoting Thibault Sottiaux
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- 2026-07-16 19:07:59
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- 2026-07-16 19:07:59
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- Blog / Newsletter2026-07-16 19:07:19Quoting Thibault Sottiaux
<blockquote cite="https://twitter.com/thsottiaux/status/2077630111499882637"><p>On file deletions. We’ve investigated a handful of reports where GPT-5.6 unexpectedly deleted files. </p> <p>What we have found is that this most commonly occurs when:</p> <ul> <li>Full access mode is enabled and codex is run without sandboxing protections, including without auto review being enabled</li> <li>The model attempts to override the $HOME env var to define a temporary directory.</li> <li>The model makes an honest mistake and mistakenly deletes $HOME instead.</li> </ul></blockquote> <p class="cite">— <a href="https://twitter.com/thsottiaux/status/2077630111499882637">Thibault Sottiaux</a>, describing a pretty gnarly Codex bug</p> <p>Tags: <a href="https://simonwillison.net/tags/codex">codex</a>, <a href="https://simonwillison.net/tags/coding-agents">coding-agents</a>, <a href="https://simonwillison.net/tags/generative-ai">generative-ai</a>, <a href="https://simonwillison.net/tags/ai">