Content
78%Weight 40%Scale 1-5Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
The body is a highly actionable, well-structured rubric with concrete failure signatures, rewrite tables, deterministic severity and verdict rules, and a clean single-reference bundle layout. Its main weakness is token efficiency: it quotes external glossary definitions of concepts Claude already knows and covers the same exclusions three times across the out-of-scope, Anti-patterns, and Limitations sections.
Suggestions
Trim the four verbatim ISTQB glossary quotations to a one-line citation or drop them entirely - the concepts of test oracles, equivalence partitioning, and boundary value analysis are already familiar, so only the links add value.
Merge the Limitations section into the 'What this skill judges, and what it does not' table (its three bullets repeat the Checking correctness, Assessing risk, and Checking completeness rows almost verbatim), cutting roughly 15 lines of duplication.
Collapse the Anti-patterns rows that restate the out-of-scope table (style-as-testability, typos, non-claims) into a single self-check line, keeping only the 'Make this more testable with no rewrite' row which adds new guidance.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body quotes four ISTQB glossary definitions (testability, expected result, test oracle, equivalence partitioning) whose concepts Claude already knows, and the Limitations and Anti-patterns sections largely restate the earlier out-of-scope table (e.g., "Testable is not correct" repeats "Checking correctness"), so it is mostly efficient but could be tightened. | 3 / 5 |
Actionability | Each heuristic gives a failure signature with specific trigger words, untestable-to-testable rewrite tables, a deterministic severity table, an explicit verdict rule, and a copy-paste-ready output format with worked rows; per the instruction-only scoring note, this is fully executable guidance. | 5 / 5 |
Workflow Clarity | "How to apply the rubric" provides six sequenced steps plus a four-step review workflow with a deterministic verdict computation, but there is no explicit validation checkpoint (e.g., re-checking each emitted finding against the failure signatures before verdicting), matching anchor 4's minor validation gap. | 4 / 5 |
Progressive Disclosure | The single bundle reference ([references/worked-examples.md] under "## Worked examples") is real, one level deep, clearly signaled, and back-links to SKILL.md; the bulk worked-example content is correctly split out of a well-sectioned body. | 5 / 5 |
Total | 17 / 20 Passed |