https://blog.ast.moe/en/tags/png/Recent posts: GorimuchuHugohttps://blog.ast.moe/en/blog/2026-09-11-2/Fri, 11 Sep 2026 21:25:17 +0900https://blog.ast.moe/en/blog/2026-09-11-2/<p>The thread that had been running for a long time on Codex suddenly stopped working.</p> <p>The error that was displayed is as follows.</p> <p>If you only want to understand the meaning of this error, it is explained in “What does Codex’s ‘Error running remote compact task: {&ldquo;detail&rdquo;:&ldquo;Bad Request&rdquo;}’ mean?” (<a href="https://blog.ast.moe/en/blog/2026-09-17/">source</a>). In this article, I will describe the steps we took to investigate the history and restore the thread.</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-text" data-lang="text"><span style="display:flex;"><span>Error running remote compact task: {&#34;detail&#34;:&#34;Bad Request&#34;} </span></span></code></pre></div><p>If it had failed only once, a simple retry would have worked, but in this thread every time we tried a compact we received the same HTTP 400 error, and eventually even the normal responses began to fail.</p>