This is a focused SOQL authoring and optimization skill that turns natural language into Salesforce queries, handles relationship traversals and aggregates, and scores your output on a 100-point scale. It covers child-to-parent queries, subqueries, selectivity analysis, and governor-aware design. You'd reach for this when writing .soql files or debugging query performance, not when running bulk data operations or embedding queries in broader Apex logic (it delegates those). The workflow is sensible: generate the simplest correct query first, pick the right shape for your data pattern, then optimize for indexes and selective filters. It knows when to hand off execution to other skills and comes with reference files for syntax, anti-patterns, and selector layer patterns.
npx skills add https://github.com/forcedotcom/sf-skills --skill querying-soql