http://programmer.ie/tags/just-in-time/ Recent content in Just in Time on Programmer.ie: Modern AI programming Hugo en-us Wed, 23 Sep 2026 05:00:14 +0100 http://programmer.ie/books/context/14-chapter/ Wed, 23 Sep 2026 05:00:14 +0100 http://programmer.ie/books/context/14-chapter/ <p>Chapter 13 left the model holding a tidy live context and a shelf of external artifacts:</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-text" data-lang="text"><span style="display:flex;"><span>Incident 17 — lock-order inversion. </span></span><span style="display:flex;"><span>Evidence: artifact://incident-17 </span></span></code></pre></div><p>plus five more references of the same shape. Then the current task changes. The user asks why the deadlock appeared only under concurrent import. The incident artifact probably matters. So might the benchmark report, the migration plan, and the compiler run. The naive response is to load everything, which recreates within one turn the exact occupancy problem Chapter 13 solved. Leaving was only half the problem. Existence plus recoverability does not mean admission. This chapter decides what comes back.</p>