https://andreasnissen.dev/tags/regression-testing/Recent content in Regression Testing on Andreas NissenHugoen-us© Andreas NissenMon, 31 Aug 2026 00:00:00 +0000https://andreasnissen.dev/writing/skill-routing-is-reliability/Mon, 31 Aug 2026 00:00:00 +0000https://andreasnissen.dev/writing/skill-routing-is-reliability/<p>A skill can contain excellent instructions and still make the agent less reliable.</p> <p>If it activates for the wrong request, competes with a nearby skill, loads stale policy, or assumes permissions the task does not grant, the failure begins before the workflow runs.</p> <p>That makes skill routing an evaluation problem.</p> <h2 id="the-description-is-an-interface">The description is an interface</h2> <p>Most agent harnesses select a skill before loading its full instructions. The selector often sees a name and short description, then decides which deeper workflow deserves context.</p>