Content
65%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 lean, well-organized, and free of unnecessary explanation, suiting a simple single-purpose skill. Its weaknesses are executable specificity (no coverage-tool commands or example tests) and missing validation checkpoints (never instructed to run the new test or re-check coverage). Structure and token efficiency are strong.
Suggestions
Add a concrete coverage-analysis hint, e.g. detect the project's framework and run its coverage command (pytest --cov, npm test -- --coverage, go test -cover) so step 1 is executable rather than implied.
Include a validation step after writing the test, such as 'Run the new test and confirm it passes; re-run coverage to verify the target path is now covered' to close the feedback loop.
Show a short example of the expected output format for step 3's explanation (why the path matters / which failure it prevents), making the deliverable unambiguous.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is brief, teaches nothing Claude already knows, and uses a tight task list; only the persona framing ("Act as a Senior XP Developer with Lean thinking. Work in small steps, aim for simplicity") and the redundant "improve reliability through meaningful tests" could be trimmed. Not anchor 5 because these minor padded phrases exist; not anchor 3 because nothing is genuinely over-explained. | 4 / 5 |
Actionability | Steps are specific in intent ("Run coverage analysis on the code and identify untested, high-value behavior", "Write a focused test that exercises the most relevant untested path") but no concrete commands, tool guidance, or example test is given, leaving execution details missing. Not anchor 4 because there is no executable command or example; not anchor 2 because the three steps are concrete direction, not vague hints. | 3 / 5 |
Workflow Clarity | The 1-2-3 sequence (run coverage, write test, explain) is clearly ordered with useful sub-bullets, but there is no validation checkpoint such as running the new test to confirm it passes or re-running coverage to verify the increase. Not anchor 4 because validation is absent rather than a minor gap; not anchor 2 because the sequence is well-defined without major gaps. | 3 / 5 |
Progressive Disclosure | The skill is under 50 lines, single-purpose, and needs no external references; the body is organized into clear sections (role header, '### Task') with all content appropriately inlined. Per the rubric's simple-skill guideline, this earns the top score. | 5 / 5 |
Total | 15 / 20 Passed |