This is a diary of professional dissolution written from inside the dissolving. The author — a working programmer, not a thought leader — traces a sequence of adaptations that will be familiar to anyone who codes for a living: ChatGPT as search replacement, then as Ruby spec generator, then as tab-completion, then as agentic pair programmer, then as something that no longer needs you to tell it what to do. Each phase felt like a trick until it became the default. The piece's real contribution is granularity. Where most AI-and-coding essays operate at the level of vibes or productivity stats, this one names specific cognitive shifts with the precision of someone who lived them. The move from "I tell it what to build" to "I think about what QA I want to do" is a phase transition most commentary skips over. The author catches it mid-stride, which is why the writing has the texture of field notes rather than reflection. The Ruby confession is quietly devastating: "The first 5 or 6 languages I used professionally, I learned to love and be efficient with. But I'd hit my limit." This is the honest version of what a hundred LinkedIn posts about AI productivity are actually about — the moment a senior engineer admits the learning curve is no longer worth climbing because the machine flattened it. The author doesn't moralize about this. They just notice it. The middle sections document a specific workflow evolution: from copy-paste ChatGPT for computer vision code, through hallucination detection as boundary-mapping, to agentic prompting with Claude. The hallucination passage is the sharpest paragraph — "hallucinations appear at the boundary, and it became my turn to fill in the blanks." That single observation contains more useful epistemology about LLM reliability than most formal analyses. What makes the piece land is its resistance to narrative closure. The author doesn't arrive at a thesis about whether this is good or bad. They arrive at Opus 5.5 and feel "frozen, at zero" — the same vertigo they felt at the beginning, but from a higher altitude. The old job of reviewing every line, knowing every pattern, dictating every architectural choice is receding. The new job — constraint-setting, QA thinking, generating three UI variants instead of agonizing over one — doesn't have a name yet. The trailing edge of the essay dissolves into fragments: metrics dashboards, subagents, vulnerability burndown charts, a native Swift rewrite prompted on a whim. This isn't sloppy writing. It mirrors the cognitive state it describes — a professional whose workflow is changing faster than their ability to narrate it. The piece ends mid-sentence, mid-thought, which is either an artistic choice or the most honest ending possible. The limitations are real. This is one person's experience, heavily weighted toward web/app development with Rails and React patterns. The "3x productivity" claim is self-measured across merged PRs, which is a noisy metric. The author acknowledges bias against OpenAI while using its products. None of this undermines the piece's core value, which is phenomenological: what does it actually feel like to have your professional identity restructured in real time by tools that keep getting better?