Content
77%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a strong, actionable skill with executable SQL examples, clear workflow sequencing, and explicit validation checkpoints. Its main weaknesses are minor verbosity in the introductory sections and the inability to verify that referenced bundle files actually exist. The EXPLAIN output patterns table and concrete examples are particularly valuable additions that demonstrate domain expertise.
Suggestions
Remove the introductory sentence ('Senior database optimizer with expertise...') and the 'When to Use This Skill' section, as these duplicate the YAML description and don't add actionable guidance.
Provide the referenced bundle files (references/query-optimization.md, etc.) or remove the reference table if they don't exist, as broken references reduce trust in the skill's structure.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill is mostly efficient but includes some unnecessary framing (e.g., 'Senior database optimizer with expertise in...' adds no value for Claude). The 'When to Use This Skill' section largely duplicates the description. The EXPLAIN output patterns table and SQL examples are well-chosen and earn their tokens, but the output templates section is somewhat generic. | 2 / 3 |
Actionability | Provides fully executable SQL queries for PostgreSQL and MySQL, concrete EXPLAIN analysis patterns with specific remedies, and copy-paste ready index creation and validation commands. The guidance is specific and immediately usable. | 3 / 3 |
Workflow Clarity | The core workflow is clearly sequenced with explicit validation checkpoints: capture baseline EXPLAIN ANALYZE, implement incrementally, validate each change before proceeding, re-run EXPLAIN ANALYZE to compare. The constraints section reinforces the feedback loop (never optimize without baseline, measure before/after every change, roll back if degradation). The 'Validate Improvement' section provides concrete before/after comparison steps. | 3 / 3 |
Progressive Disclosure | The reference table with 'Load When' guidance is well-structured and clearly signaled, but no bundle files were provided, so the referenced files (references/query-optimization.md, etc.) cannot be verified to exist. The main SKILL.md itself is somewhat long with inline content that could potentially live in the referenced files, though the inline examples are valuable for quick reference. | 2 / 3 |
Total | 10 / 12 Passed |