Saulo Valdivia

AI-native SDET — QA experiments, the harness era, and the reskilling journey, in public.

• The harness doesn't replace the SDLC. It replaces the QA loop inside it.

  Jul 19, 2026 · The harness era

  Harness engineering has a name now, an origin, and a claim: agents rebuild QA from the inside. Here's where the term came from, how the classical dev→QA→UAT→prod loop actually changes, and what the QA job becomes when the machine runs, selects, and repairs the tests itself.

• My API testing is one step from running itself. So what's left for me?

  Jun 8, 2026 · QA experiments

  I rebuilt my API testing as an AI pipeline I drive: I feed in the feature, add the negative and edge cases that matter, and the model turns them into a shareable Postman collection. It's not fully automated — but I can see the version that doesn't need me, and that's the question.

• Hello world — this blog is live

  Jun 5, 2026 · Perspective

  A placeholder first post to prove the pipeline end-to-end: git → Vercel → saulovaldivia.com. Real content starts with the Experiment 0 write-up.