spark-sql-optimizer

Quick Review

The skill has clear structure and addresses a potentially valuable domain (Spark SQL optimization), but severely lacks substantive content. The description is extremely generic, providing no specific capabilities, optimization techniques, or actionable guidance. It merely states it will help with 'spark sql optimizer' without explaining what optimizations it performs (query planning, partition strategies, caching, broadcast joins, etc.). No concrete task knowledge, code examples, or step-by-step procedures are provided. A CLI agent would have no specific direction on what this skill actually does beyond vague 'guidance'. To be useful, it needs concrete optimization strategies, analysis scripts, and specific Spark SQL best practices.