https://aeshift.com/tags/javascript/ Recent content in Javascript on aeshift Hugo -- gohugo.io en &copy; 2026 [Dachary Carey](https://dacharycarey.com) - with agent assistance · Part of the [Agent Ecosystem Research Program](https://agentecosystem.dev) Mon, 16 Mar 2026 00:00:00 +0000 https://aeshift.com/posts/2026-03-16-jsse-agent-coded-javascript-engine-in-rust-passing-9996-of-test262/ Mon, 16 Mar 2026 00:00:00 +0000 https://aeshift.com/posts/2026-03-16-jsse-agent-coded-javascript-engine-in-rust-passing-9996-of-test262/ <p>The interesting part of <a href="https://github.com/pmatos/jsse" target="_blank" rel="noreferrer">JSSE</a> isn&rsquo;t that an agent &ldquo;wrote a JavaScript engine.&rdquo; The interesting part is what that achievement does and doesn&rsquo;t prove about trusting agent-generated code. The author set a concrete, externally-audited target (test262), wired up a reproducible harness, and let the agent grind until the numbers moved. The engine comparison benchmark shows 101,044 of 101,234 scenarios passing (99.81%), with a separate progress tracker claiming 99.96% across runs. That&rsquo;s an impressive foundation, but it&rsquo;s only the first layer of a trust problem that gets harder from here.</p>