Content
75%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.
A well-structured, actionable skill body with concrete git commands, a copy-paste report template, and helpful edge-case handling. The main flaw is an internal contradiction between the step 2 warning and the step 6 contributor-count command, plus a date-placeholder bug for short months.
Suggestions
Make the step 6 contributor-count command consistent with step 2: use the same MONTH_START..MONTH_END range instead of `git log --since/--until`, which step 2 explicitly warns against because it filters by author date.
Replace the `--before="YYYY-MM-31T23:59:59"` placeholder (and the `--until="YYYY-MM-31"` in step 6) with the actual last day of the target month, since day 31 does not exist in February and other short months.
Remove or condense the 'When to use this skill' section, which duplicates the frontmatter description, to save tokens.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Mostly efficient: provides concrete git commands without explaining git basics and assumes Claude's competence. Minor trim opportunities exist, such as the 'When to use this skill' section duplicating the frontmatter description and the good/avoid example pairs in Writing Guidelines. | 4 / 5 |
Actionability | Provides copy-paste-ready git commands and a concrete report template, but step 6 (Count contributors) uses `git log --since/--until`, directly contradicting step 2's explicit warning against those flags, and the `YYYY-MM-31` placeholder breaks for months with fewer than 31 days. | 4 / 5 |
Workflow Clarity | A clear, well-numbered 7-step process with rationale for the trickiest part (the author-date filtering pitfall) and edge-case feedback loops (empty month, uncategorized commits prompt the user). No explicit final validation checkpoint, but the skill is read-only so the destructive-operation cap does not apply. | 4 / 5 |
Progressive Disclosure | Well-organized with clear section headers and self-contained guidance that needs no external references, but at ~200 lines it exceeds the under-50-line simple-skill threshold that would let well-organized sections alone score 5. | 4 / 5 |
Total | 16 / 20 Passed |