Backward-Compatibility on Start AI Tools - Presented by Intent Solutionshttps://startaitools.com/tags/backward-compatibility/Recent content in Backward-Compatibility on Start AI Tools - Presented by Intent SolutionsHugoen-USIntent Solutions. All rights reserved.Fri, 15 May 2026 07:06:18 -0600Self-Improving Skills: Three Schema Versions in One Dayhttps://startaitools.com/posts/self-improving-skills-three-schema-versions-one-day/Thu, 14 May 2026 08:00:00 -0500https://startaitools.com/posts/self-improving-skills-three-schema-versions-one-day/<p>A skill that throws <code>UnknownEnvVar</code> mid-task is a UX disaster. By the time the error surfaces, skill selection has already happened, the user is mid-thought, and recovery is &ldquo;go set the env var and start over.&rdquo; The whole point of skill metadata is to prevent that <em>before</em> the skill is ever shown. Three schema versions shipped to the claude-code-plugins marketplace on 2026-05-14 — 3.4.0, 3.5.0, 3.6.0 — are three layers of the same defense. Catalogs get cheap to interrogate. Skills hide themselves when their deps are absent. And on install, skills tell the installer exactly what to prompt for.</p>