analyzing-regression-scope

Analyzes diffs, changed files, hotfixes, and release candidates to find which features a change could break, where regression risk spreads, and what must be retested first. Use when scoping retest after a change, reviewing QA impact for a pull request, or building a minimal confidence suite for release validation. For a rule-based mapping from diff tags to the quality checks a pull request needs, use scoping-change-relevance.