Specification Engineering: Front-Loading Into Structured Briefs Before AI Invocation

blog.tedivm.com·high signal

Multiple practitioners (Willison Pragmatic Summit, blog.tedivm.com, Anthropic 2026 Trends Report) independently document the same shift: the highest-leverage skill in AI coding is no longer prompt engineering but specification engineering — defining scope, constraints, and acceptance criteria in a structured project brief before any AI is invoked. Each AI-generated feature then goes on its own branch with the spec as the review baseline. Evidence across 3+ independent sources in March 2026 confirms this is the emerging consensus pattern.