Prediction◆Article · 7:48 — 13:50
AI became a generational change in November 2025, primarily because coding harnesses such as Claude Code turned from shell scripts into serious infrastructure.
Charity Majors identifies November 2025 as the point when her view of AI shifted from skepticism about its generational impact to seeing it as transformative. She credits the coding harness, especially Claude Code, more than the underlying model alone. ✦ AI generated
Charity Majors · The Pragmatic Engineer · 2026-08-12 · original ↗
Charity’s turning point in seeing AI as a generational change was in November 2025. This was due to Opus 4.5, but Charity argues that the coding harness (Claude Code) made the bigger difference. Because thanks to Claude Code, harnesses went from being more of a shell script to serious infrastructure.
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- ·Charity Majors’ view shifted in November 2025.
- ·She began seeing AI as transformative, not merely incremental.
- ·The coding harness mattered more than the underlying model alone.
- ·Opus 4.5 contributed to the shift.
- ·Claude Code made the bigger difference.
- ·Harnesses evolved from shell scripts into serious infrastructure.
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supports → The AI models released in November 2025 made agentic coding genuinely useful for the first time, and six months on, companies are now spending real money on the technology.Simon Willison · The Pragmatic Engineersupports → Engineering leaders should move toward AI immediately, and anxious directors should consider returning to individual-contributor work because it offers more agency.Charity Majors · The Pragmatic Engineersupports → Developers using AI coding harnesses now produce roughly 2.5 times as much code as they did 18 months ago.Gergely Orosz · The Pragmatic Engineer