Skill Scorer
📖 技能介紹
Skill: skill-scorer
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Overview
A meta-skill that evaluates the quality of other skills. Given a SKILL.md file (or a complete skill folder), it performs a systematic audit across 8 dimensions, assigns a score out of 100, identifies issues by severity, and generates actionable optimization suggestions.
This skill synthesizes quality criteria from Anthropic's official skill authoring best practices, the Skill Engineering Standard (v1.4.3), and community-tested patterns from production skill ecosystems.
When to Activate
User provides a skill and asks any of:
- "幫我評分/打分/檢測/質檢 這個 skill"
- "review/audit/score/grade/lint this skill"
- "這個 skill 寫得怎麼樣？" / "is this skill any good?"
- "幫我最佳化這個 skill" (evaluate first, then suggest improvements)
- Provides a SKILL.md and expects quality feedback
Do NOT activate for: creating a new skill from scratch → use skill-creator. This skill is for evaluation, not generation.
Core Workflow
Step 0: Load the Skill Under Test
Determine what the user has provided:
| Input | Action |
|---|---|
Single SKILL.md file |
Evaluate that file |
Skill folder (with references/) |
Evaluate all files, cross-reference consistency |
| URL / GitHub link | Fetch and evaluate |
| Pasted markdown content | Treat as SKILL.md |
If the user has not provided a skill → ask: "請提供要評估的 SKILL.md 檔案或 skill 資料夾路徑。"
Input validation — before proceeding to Step 1, verify the input is actually a skill:
| Check | Condition | Action |
|---|---|---|
| Binary / garbled content | File is not valid text, or text is unreadable gibberish | STOP. Report: "This file does not appear to be a valid SKILL.md — it contains binary or unreadable content. Please provide a markdown-based skill file." Do NOT attempt to score. |
| No skill markers at all | Text is valid but contains zero skill indicators (no YAML frontmatter ---, no markdown headings resembling skill sections, no workflow/instructions) |
STOP. Report: "This appears to be a {detected_type} file (e.g., Python script, JSON config, plain prose), not a SKILL.md. skill-scorer evaluates SKILL.md files only." Do NOT force-fit 8 dimensions onto non-skill content. |
| Partial skill structure | Has some skill-like elements (e.g., YAML frontmatter exists but body is minimal, or has headings but no workflow) | PROCEED with caveats. Evaluate normally, but note in the report header: "⚠️ This file has incomplete skill structure — scores reflect what is present." Score missing sections as 0 in relevant dimensions rather than guessing. |
Step 1: Parse Skill Structure
Extract and inventory:
- YAML frontmatter fields (
name,description,version,compatibility) - Section headings and their order
- References to external files (
references/,scripts/,assets/) - Total line count and estimated token count of SKILL.md body
Step 2: Run 8-Dimension Evaluation
Read references/rubric.md for the complete scoring rubric.
Evaluate the skill across these 8 dimensions (each scored 0-100, then weighted):
| # | Dimension | Weight | What It Measures |
|---|---|---|---|
| 1 | Metadata & Triggering | 15% | Name clarity, description quality, trigger coverage |
| 2 | Structure & Architecture | 15% | File organization, section order, progressive disclosure |
| 3 | Instruction Clarity | 15% | Actionability, conciseness, examples, tone |
| 4 | Workflow & Logic | 15% | Step completeness, parameter handling, validation |
| 5 | Error Handling | 10% | Fallbacks, edge cases, failure recovery |
| 6 | Context Efficiency | 10% | Token budget, redundancy, information density |
| 7 | Portability & Compatibility | 10% | Self-containment, cross-platform support |
| 8 | Safety & Robustness | 10% | No injection risk, no hallucination traps, identity lock |
Step 3: Identify Issues
For each issue found, classify severity:
| Severity | Meaning | Score Impact |
|---|---|---|
| 🔴 Critical | Skill will malfunction or not trigger | -10 to -15 per issue |
| 🟡 Warning | Skill works but suboptimally | -3 to -8 per issue |
| 🟢 Suggestion | Nice-to-have improvement | -1 to -2 per issue |
Step 4: Generate Report
Read references/report-template.md for the output format.
The report includes:
- Score Card — Overall score + per-dimension breakdown
- Issue List — All findings sorted by severity
- Top 3 Quick Wins — Highest-impact fixes with before/after examples
- Optimization Roadmap — Prioritized improvement plan
Step 5: Offer Follow-Up
After presenting the report, ask:
- "需要我幫你自動修復這些問題嗎？" (auto-fix mode)
- "需要對某個維度深入分析嗎？" (deep-dive mode)
- "需要生成最佳化後的 SKILL.md 嗎？" (rewrite mode)
Output Rules
- Bilingual report — Chinese first, English after, no interleaving. Always output the complete report in Chinese, then a
---separator, then the complete report in English. Never mix languages within a section. Both versions must contain identical scores, issues, and suggestions — only the language differs. - Score must be justified. Every deducted point must trace to a specific issue.
- Suggestions must be actionable. Include before/after code snippets, not vague advice.
- Be constructive, not destructive. Lead with what the skill does well before listing issues.
- ❌ Never inflate scores to be polite — honest assessment helps the user improve.
- ❌ Never evaluate based on domain correctness of the skill's content (e.g., whether hotel recommendations are good) — only evaluate skill engineering quality.
References
| File | Purpose | When to read |
|---|---|---|
| references/rubric.md | Detailed scoring criteria for all 8 dimensions | Step 2: scoring |
| references/report-template.md | Output format and report structure | Step 4: generating report |
| references/anti-patterns.md | Common skill mistakes and how to detect them | Step 3: finding issues |
🤖 AI 評測
這個 Skill 質量很高，設計專業、結構清晰，能對其他 Skill 進行全面系統的質量評估，評分標準細緻，反模式檢測全面。雙語支援完善，文件組織有序。優點是架構設計合理、驗證邏輯健全、版本管理規範；小瑕疵是部分參考文件可能被截斷、缺少快速示例。總體是一款優秀的質量評估工具。
