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    <title>Hackathon on Programmer.ie: Modern AI programming</title>
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      <title>Codex Manager: Building a Prompt-State Runtime for Hackathon-Grade Code Optimization</title>
      <link>http://programmer.ie/post/codex/</link>
      <pubDate>Sat, 16 May 2026 20:15:59 +0100</pubDate>
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      <description>&lt;h2 id=&#34;tldr&#34;&gt;TL;DR&lt;/h2&gt;&#xA;&lt;p&gt;Codex Manager uses AI to generate code as an artifact, then tests that artifact, diagnoses what happened, and repairs the prompt state that produced it. The code is not the thing being optimized directly. The prompt state is.&lt;/p&gt;&#xA;&lt;h2 id=&#34;summary&#34;&gt;Summary&lt;/h2&gt;&#xA;&lt;p&gt;&lt;a href=&#34;https://huggingface.co/humanitys-last-hackathon?utm_source=chatgpt.com&#34;&gt;Humanity’s Last Hackathon&lt;/a&gt; framed the challenge as a test of &lt;strong&gt;context, not code&lt;/strong&gt;: the task was hard enough that the real question was not whether someone could hand-write one clever kernel, but whether they could build a system that used AI effectively under changing constraints.&lt;/p&gt;</description>
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