1 link tagged with all of: agentic coding + opus + developer productivity
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A developer walks through how their daily coding work changed across ChatGPT, Cursor tab completion, Claude agents, and Opus 4.5 through 5.5, ending with a model building a working notes app for iPhone from a single prompt. It reads as a personal timeline of AI tools moving from a better search box to something that handles most of the implementation.
- Productivity rose from a modest gain to roughly 3x (measured over a few months of merged PRs) once the Opus 4.5/6 models needed far less step-by-step prompting.
- The developer's role shifted from writing and reviewing every line to focusing on architecture, business logic, customer data, and irreversible changes, scanning the rest.
- A single prompt produced a basic working iPhone app that imported all their Electron notes, using about 40% of a $20 subscription's 5-hour limit.