Stryker on Tokenisehttps://tokenise.rosvetic.com/tags/stryker/Recent content in Stryker on TokeniseHugoen-gbTue, 20 Oct 2026 07:07:00 +0000Pin a legacy function before an agent refactors it: record its outputs, then let StrykerJS grade the safety nethttps://tokenise.rosvetic.com/posts/characterization-grid-stryker-before-refactor/Tue, 20 Oct 2026 07:07:00 +0000https://tokenise.rosvetic.com/posts/characterization-grid-stryker-before-refactor/<p>A function nobody wants to touch decides what customers pay, and an agent has just been asked to tidy it. The tests are thin, the original author left in 2021, and the diff that comes back reads fine. That&rsquo;s the trap. A refactor that reads fine and changes a rounding rule is the most expensive kind, because nothing fails until an invoice does.</p>