Skill Grading Report: browser-extension-developer - Score 75/100 (C)

# 📝 Skill Grading Report

**Score:** 75/100 | **Grade:** C

## Quick Summary

### Pillar Scores

| Pillar | Score | Max |
|--------|-------|-----|
| Spec Compliance | 11 | 15 |
| Progressive Disclosure | 21 | 30 |
| Ease of Use | 21 | 25 |
| Writing Style | 9 | 10 |
| Utility | 12 | 20 |
| Modifiers | +1 | ±15 |

### Issues Found: 5
- 🔴 High: 0
- 🟡 Medium: 3
- 🟢 Low: 2

## 📊 Full Grading Report

# Skill Evaluation Report: browser-extension-developer

**Links:**
- 📁 **GitHub:** [yamadashy/repomix](https://github.com/yamadashy/repomix/blob/main/.claude/skills/browser-extension-developer/SKILL.md)
- 🛒 **Marketplace:** [View on SkillzWave](https://skillzwave.ai/skill/yamadashy__repomix__-claude__skills__browser-extension-developer__SKILL/)
- 📤 **Submit Skill:** [Submit to SkillzWave](https://skillzwave.ai/submit/) - Skills are ranked, graded, and scanned for security
- 📊 **Tracking:** [All Graded Skills](https://github.com/SpillwaveSolutions/skill_improver/issues)

**Evaluated:** 2025-12-29
**Files Reviewed:** .claude/skills/browser-extension-developer/SKILL.md
**Grading Model:** Claude (default) (via claude)

---

## Overall Score: 75/100

| Pillar | Score | Max |
|--------|-------|-----|
| Progressive Disclosure Architecture | 21 | 30 |
| Ease of Use | 21 | 25 |
| Spec Compliance | 11 | 15 |
| Writing Style | 9 | 10 |
| Utility | 12 | 20 |
| Modifiers | +1 | ±15 |

**Grade: C**

---

## Executive Summary

This skill shows solid fundamentals with a score of 75/100. Strongest area: **Writing Style** (9/10).

---

## Detailed Scores

### Progressive Disclosure Architecture (21/30)

| Criterion | Score | Max | Assessment |
|-----------|-------|-----|------------|
| Token Economy | 8 | 10 | Concise 37-line file with minimal fluff; structure diagram and commands are token-efficient |
| Layered Structure | 5 | 10 | No reference files exist; all content in SKILL.md but acceptable for this scope |
| Reference Depth | 3 | 5 | No references directory; skill is simple enough to not require layering |
| Navigation Signals | 5 | 5 | Clear section headers (Structure, Commands, i18n, Notes); file under 100 lines so no TOC needed |

### Ease of Use (21/25)

| Criterion | Score | Max | Assessment |
|-----------|-------|-----|------------|
| Metadata Quality | 9 | 10 | Name follows conventions; description includes specific triggers (browser/, Chrome/Firefox/Edge, content scripts) |
| Discoverability | 5 | 6 | Good trigger terms (browser extension, content scripts, i18n) but could add more activation contexts |
| Terminology Consistency | 4 | 4 | Consistent use of terms throughout (WXT, Manifest V3, entrypoints) |
| Workflow Clarity | 3 | 5 | Commands listed but no numbered workflow steps or checklists for adding features |

### Spec Compliance (11/15)

| Criterion | Score | Max | Assessment |
|-----------|-------|-----|------------|
| Frontmatter Validity | 5 | 5 | Valid YAML with required fields |
| Name Conventions | 4 | 4 | Correct hyphen-case format |
| Description Quality | 2 | 4 | No trigger phrases |
| Optional Fields | 0 | 2 | No optional fields used (no penalty) |

### Writing Style (9/10)

| Criterion | Score | Max | Assessment |
|-----------|-------|-----|------------|
| Voice And Tense | 4 | 4 | Uses imperative form (Create, Run); no second-person pronouns |
| Objectivity | 3 | 3 | No marketing language; purely instructional content |
| Conciseness | 2 | 3 | Very concise but some sections could use slightly more actionable detail |

### Utility (12/20)

| Criterion | Score | Max | Assessment |
|-----------|-------|-----|------------|
| Problem Solving Power | 5 | 8 | Covers basic structure and commands but lacks troubleshooting guidance or edge cases |
| Degrees Of Freedom | 3 | 5 | Appropriate constraints for extension development; browser-specific notes helpful |
| Feedback Loops | 2 | 4 | Mentions lint and tests but no explicit run→check→fix patterns |
| Examples And Templates | 2 | 3 | i18n template guidance present but no code examples or input/output pairs |

### Modifiers Applied (+1)

**Penalties:** None
**Bonuses:** grep_friendly_structure (+1)

---

## Critical Issues (Top 5)

### Issue 1: Description needs trigger phrases

**Severity:** Medium
**Location:** SKILL.md:frontmatter:description
**Pillar Affected:** spec_compliance

**Problem:** No trigger phrases

**Current:**
```
description: Use this skill when developing or maintaining browser extension code in the `browser/` directory, in...
```

**Suggested Rewrite:**
```
description: Performs  claude__skills__browser extension developer operations. Use when asked to " claude__skills__browser extension developer", "run  claude__skills__browser extension developer", or " claude__skills__browser extension developer help".
```

**Impact:** +2 points

---

### Issue 1: Missing workflow steps

**Severity:** Medium
**Location:** SKILL.md:Commands
**Pillar Affected:** Ease of Use

**Problem:** Commands listed without context of when to use each or development workflow

**Current:**
```
- `npm run dev` - Development mode (Chrome default)
```

**Suggested Rewrite:**
```
Add numbered workflow: 1. Start dev server: `npm run dev` 2. Make changes (hot reload active) 3. Test in browser 4. Run `npm run lint && npm run test` 5. Build: `npm run build-all`
```

**Impact:** +2 points

---

### Issue 2: No troubleshooting section

**Severity:** Medium
**Location:** SKILL.md:Notes
**Pillar Affected:** Utility

**Problem:** Notes section mentions Firefox polyfills but provides no guidance on common issues

**Current:**
```
Chrome/Edge use `chrome.*` APIs, Firefox may need polyfills
```

**Suggested Rewrite:**
```
Add common issues: manifest version conflicts, CSP errors, permission debugging with browser devtools
```

**Impact:** +2 points

---

### Issue 3: Missing validation feedback loop

**Severity:** Low
**Location:** SKILL.md:end
**Pillar Affected:** Utility

**Problem:** No explicit validation checklist before submitting changes

**Current:**
```
Run lint and tests before completion
```

**Suggested Rewrite:**
```
Add checklist: [ ] Lint passes [ ] Tests pass [ ] Tested in Chrome [ ] Tested in Firefox [ ] i18n keys match across all languages
```

**Impact:** +2 points

---

### Issue 4: No code examples

**Severity:** Low
**Location:** SKILL.md:i18n
**Pillar Affected:** Utility

**Problem:** i18n section describes process but shows no message.json structure example

**Current:**
```
Create `public/_locales/[code]/messages.json` with keys: appDescription, openWithRepomix
```

**Suggested Rewrite:**
```
Add example: {"appDescription": {"message": "...", "description": "..."},"openWithRepomix": {"message": "...", "description": "..."}}
```

**Impact:** +1 point

---

## General Recommendations

1. Add trigger phrases to description for discoverability
2. Add table of contents for files over 100 lines

---

## Grade Scale

| Grade | Score | Description |
|-------|-------|-------------|
| A | 90-100 | Production-ready |
| B | 80-89 | Good, minor work |
| C | 70-79 | Adequate, gaps |
| D | 60-69 | Needs work |
| F | <60 | Major revision |

---

---

## About This Report

This evaluation uses the [Claude Skills Best Practices](https://platform.claude.com/docs/en/agents-and-tools/agent-skills/best-practices).

**Powered by:**
- [SkillzWave](https://skillzwave.ai) - Claude Skills Marketplace
- [SpillWave](https://spillwave.com) - AI Solutions

*Report generated for [yamadashy/repomix](https://github.com/yamadashy/repomix/blob/main/.claude/skills/browser-extension-developer/SKILL.md)*

## JSON Output

```json
{
  "skill_name": "browser-extension-developer",
  "evaluated_at": "2025-12-29T17:32:28.888326",
  "files_reviewed": [
    ".claude/skills/browser-extension-developer/SKILL.md"
  ],
  "scores": {
    "spec_compliance": {
      "total": 11,
      "max": 15,
      "breakdown": {
        "frontmatter_validity": {
          "score": 5,
          "max": 5,
          "assessment": "Valid YAML with required fields"
        },
        "name_conventions": {
          "score": 4,
          "max": 4,
          "assessment": "Correct hyphen-case format"
        },
        "description_quality": {
          "score": 2,
          "max": 4,
          "assessment": "No trigger phrases"
        },
        "optional_fields": {
          "score": 0,
          "max": 2,
          "assessment": "No optional fields used (no penalty)"
        }
      }
    },
    "pda": {
      "total": 21,
      "max": 30,
      "breakdown": {
        "token_economy": {
          "score": 8,
          "max": 10,
          "assessment": "Concise 37-line file with minimal fluff; structure diagram and commands are token-efficient"
        },
        "layered_structure": {
          "score": 5,
          "max": 10,
          "assessment": "No reference files exist; all content in SKILL.md but acceptable for this scope"
        },
        "reference_depth": {
          "score": 3,
          "max": 5,
          "assessment": "No references directory; skill is simple enough to not require layering"
        },
        "navigation_signals": {
          "score": 5,
          "max": 5,
          "assessment": "Clear section headers (Structure, Commands, i18n, Notes); file under 100 lines so no TOC needed"
        }
      }
    },
    "ease_of_use": {
      "total": 21,
      "max": 25,
      "breakdown": {
        "metadata_quality": {
          "score": 9,
          "max": 10,
          "assessment": "Name follows conventions; description includes specific triggers (browser/, Chrome/Firefox/Edge, content scripts)"
        },
        "discoverability": {
          "score": 5,
          "max": 6,
          "assessment": "Good trigger terms (browser extension, content scripts, i18n) but could add more activation contexts"
        },
        "terminology_consistency": {
          "score": 4,
          "max": 4,
          "assessment": "Consistent use of terms throughout (WXT, Manifest V3, entrypoints)"
        },
        "workflow_clarity": {
          "score": 3,
          "max": 5,
          "assessment": "Commands listed but no numbered workflow steps or checklists for adding features"
        }
      }
    },
    "writing_style": {
      "total": 9,
      "max": 10,
      "breakdown": {
        "voice_and_tense": {
          "score": 4,
          "max": 4,
          "assessment": "Uses imperative form (Create, Run); no second-person pronouns"
        },
        "objectivity": {
          "score": 3,
          "max": 3,
          "assessment": "No marketing language; purely instructional content"
        },
        "conciseness": {
          "score": 2,
          "max": 3,
          "assessment": "Very concise but some sections could use slightly more actionable detail"
        }
      }
    },
    "utility": {
      "total": 12,
      "max": 20,
      "breakdown": {
        "problem_solving_power": {
          "score": 5,
          "max": 8,
          "assessment": "Covers basic structure and commands but lacks troubleshooting guidance or edge cases"
        },
        "degrees_of_freedom": {
          "score": 3,
          "max": 5,
          "assessment": "Appropriate constraints for extension development; browser-specific notes helpful"
        },
        "feedback_loops": {
          "score": 2,
          "max": 4,
          "assessment": "Mentions lint and tests but no explicit run\u2192check\u2192fix patterns"
        },
        "examples_and_templates": {
          "score": 2,
          "max": 3,
          "assessment": "i18n template guidance present but no code examples or input/output pairs"
        }
      }
    }
  },
  "modifiers": {
    "penalties": [],
    "bonuses": [
      {
        "name": "grep_friendly_structure",
        "points": 1
      }
    ],
    "net": 1
  },
  "final_score": 75,
  "grade": "C",
  "critical_issues": [
    {
      "rank": 1,
      "title": "Description needs trigger phrases",
      "severity": "Medium",
      "location": "SKILL.md:frontmatter:description",
      "pillar": "spec_compliance",
      "problem": "No trigger phrases",
      "current": "description: Use this skill when developing or maintaining browser extension code in the `browser/` directory, in...",
      "suggested": "description: Performs  claude__skills__browser extension developer operations. Use when asked to \" claude__skills__browser extension developer\", \"run  claude__skills__browser extension developer\", or \" claude__skills__browser extension developer help\".",
      "impact": "+2 points"
    },
    {
      "rank": 1,
      "title": "Missing workflow steps",
      "severity": "Medium",
      "location": "SKILL.md:Commands",
      "pillar": "Ease of Use",
      "problem": "Commands listed without context of when to use each or development workflow",
      "current": "- `npm run dev` - Development mode (Chrome default)",
      "suggested": "Add numbered workflow: 1. Start dev server: `npm run dev` 2. Make changes (hot reload active) 3. Test in browser 4. Run `npm run lint && npm run test` 5. Build: `npm run build-all`",
      "impact": "+2 points"
    },
    {
      "rank": 2,
      "title": "No troubleshooting section",
      "severity": "Medium",
      "location": "SKILL.md:Notes",
      "pillar": "Utility",
      "problem": "Notes section mentions Firefox polyfills but provides no guidance on common issues",
      "current": "Chrome/Edge use `chrome.*` APIs, Firefox may need polyfills",
      "suggested": "Add common issues: manifest version conflicts, CSP errors, permission debugging with browser devtools",
      "impact": "+2 points"
    },
    {
      "rank": 3,
      "title": "Missing validation feedback loop",
      "severity": "Low",
      "location": "SKILL.md:end",
      "pillar": "Utility",
      "problem": "No explicit validation checklist before submitting changes",
      "current": "Run lint and tests before completion",
      "suggested": "Add checklist: [ ] Lint passes [ ] Tests pass [ ] Tested in Chrome [ ] Tested in Firefox [ ] i18n keys match across all languages",
      "impact": "+2 points"
    },
    {
      "rank": 4,
      "title": "No code examples",
      "severity": "Low",
      "location": "SKILL.md:i18n",
      "pillar": "Utility",
      "problem": "i18n section describes process but shows no message.json structure example",
      "current": "Create `public/_locales/[code]/messages.json` with keys: appDescription, openWithRepomix",
      "suggested": "Add example: {\"appDescription\": {\"message\": \"...\", \"description\": \"...\"},\"openWithRepomix\": {\"message\": \"...\", \"description\": \"...\"}}",
      "impact": "+1 point"
    }
  ],
  "recommendations": [
    "Add trigger phrases to description for discoverability",
    "Add table of contents for files over 100 lines"
  ],
  "code_quality": null,
  "grading_model": "Claude (default)",
  "grading_provider": "claude"
}
```

---

## 📦 Recommended: Add Universal Installer Instructions

Consider adding these installation instructions to your README.md to help users install this skill across 14+ AI coding agents:

```markdown
## Installing with Skilz (Universal Installer)

The recommended way to install this skill across different AI coding agents is using the **skilz** universal installer.

### Install Skilz

```bash
pip install skilz
```

This skill supports [Agent Skill Standard](https://agentskills.io/) which means it supports 14 plus coding agents including Claude Code, OpenAI Codex, Cursor and Gemini.


### Git URL Options

You can use either `-g` or `--git` with HTTPS or SSH URLs:

```bash
# HTTPS URL
skilz install -g https://github.com/yamadashy/repomix

# SSH URL
skilz install --git git@github.com:yamadashy/repomix.git
```

### Claude Code

Install to user home (available in all projects):
```bash
skilz install -g https://github.com/yamadashy/repomix
```

Install to current project only:
```bash
skilz install -g https://github.com/yamadashy/repomix --project
```

### OpenCode

Install for [OpenCode](https://opencode.ai):
```bash
skilz install -g https://github.com/yamadashy/repomix --agent opencode
```

Project-level install:
```bash
skilz install -g https://github.com/yamadashy/repomix --project --agent opencode
```

### Gemini

Project-level install for Gemini:
```bash
skilz install -g https://github.com/yamadashy/repomix --agent gemini
```

### OpenAI Codex

Install for OpenAI Codex:
```bash
skilz install -g https://github.com/yamadashy/repomix --agent codex
```

Project-level install:
```bash
skilz install -g https://github.com/yamadashy/repomix --project --agent codex
```


### Install from Skillzwave Marketplace
```
# Claude to user home dir ~/.claude/skills
skilz install yamadashy_repomix/-claude__skills__browser-extension-developer

# Claude skill in project folder ./claude/skills
skilz install yamadashy_repomix/-claude__skills__browser-extension-developer --project

# OpenCode install to user home dir ~/.config/opencode/skills
skilz install yamadashy_repomix/-claude__skills__browser-extension-developer --agent opencode

# OpenCode project level
skilz install yamadashy_repomix/-claude__skills__browser-extension-developer --agent opencode --project

# OpenAI Codex install to user home dir ~/.codex/skills
skilz install yamadashy_repomix/-claude__skills__browser-extension-developer

# OpenAI Codex project level ./.codex/skills
skilz install yamadashy_repomix/-claude__skills__browser-extension-developer --agent opencode --project


# Gemini CLI (project level) -- only works with project level
skilz install yamadashy_repomix/-claude__skills__browser-extension-developer --agent gemini

```

See this site [skill Listing](https://skillzwave.ai/skill/yamadashy__repomix__-claude__skills__browser-extension-developer__SKILL/) to see how to install this exact skill to 14+ different coding agents.


### Other Supported Agents

Skilz supports 14+ coding agents including Claude Code, OpenAI Codex, OpenCode, Cursor, Gemini CLI, GitHub Copilot CLI, Windsurf, Qwen Code, Aidr, and more.

For the full list of supported platforms, visit [SkillzWave.ai/platforms](https://skillzwave.ai/platforms/) or see the [skilz-cli GitHub repository](https://github.com/SpillwaveSolutions/skilz-cli)


<a href="https://skillzwave.ai/">Largest Agentic Marketplace for AI Agent Skills</a> and
<a href="https://spillwave.com/">SpillWave: Leaders in AI Agent Development.</a>

```

---

**Powered by:** [SkillzWave.ai](https://skillzwave.ai) | [SpillWave](https://spillwave.com)

Pillar	Score	Max
Spec Compliance	11	15
Progressive Disclosure	21	30
Ease of Use	21	25
Writing Style	9	10
Utility	12	20
Modifiers	+1	±15

Pillar	Score	Max
Progressive Disclosure Architecture	21	30
Ease of Use	21	25
Spec Compliance	11	15
Writing Style	9	10
Utility	12	20
Modifiers	+1	±15

Criterion	Score	Max	Assessment
Token Economy	8	10	Concise 37-line file with minimal fluff; structure diagram and commands are token-efficient
Layered Structure	5	10	No reference files exist; all content in SKILL.md but acceptable for this scope
Reference Depth	3	5	No references directory; skill is simple enough to not require layering
Navigation Signals	5	5	Clear section headers (Structure, Commands, i18n, Notes); file under 100 lines so no TOC needed

Criterion	Score	Max	Assessment
Metadata Quality	9	10	Name follows conventions; description includes specific triggers (browser/, Chrome/Firefox/Edge, content scripts)
Discoverability	5	6	Good trigger terms (browser extension, content scripts, i18n) but could add more activation contexts
Terminology Consistency	4	4	Consistent use of terms throughout (WXT, Manifest V3, entrypoints)
Workflow Clarity	3	5	Commands listed but no numbered workflow steps or checklists for adding features

Criterion	Score	Max	Assessment
Frontmatter Validity	5	5	Valid YAML with required fields
Name Conventions	4	4	Correct hyphen-case format
Description Quality	2	4	No trigger phrases
Optional Fields	0	2	No optional fields used (no penalty)

Criterion	Score	Max	Assessment
Voice And Tense	4	4	Uses imperative form (Create, Run); no second-person pronouns
Objectivity	3	3	No marketing language; purely instructional content
Conciseness	2	3	Very concise but some sections could use slightly more actionable detail

Criterion	Score	Max	Assessment
Problem Solving Power	5	8	Covers basic structure and commands but lacks troubleshooting guidance or edge cases
Degrees Of Freedom	3	5	Appropriate constraints for extension development; browser-specific notes helpful
Feedback Loops	2	4	Mentions lint and tests but no explicit run→check→fix patterns
Examples And Templates	2	3	i18n template guidance present but no code examples or input/output pairs

Grade	Score	Description
A	90-100	Production-ready
B	80-89	Good, minor work
C	70-79	Adequate, gaps
D	60-69	Needs work
F	<60	Major revision

Uh oh!

Skill Grading Report: browser-extension-developer - Score 75/100 (C) #1037

Description

📝 Skill Grading Report

Quick Summary

Pillar Scores

Issues Found: 5

📊 Full Grading Report

Skill Evaluation Report: browser-extension-developer

Overall Score: 75/100

Executive Summary

Detailed Scores

Progressive Disclosure Architecture (21/30)

Ease of Use (21/25)

Spec Compliance (11/15)

Writing Style (9/10)

Utility (12/20)

Modifiers Applied (+1)

Critical Issues (Top 5)

Issue 1: Description needs trigger phrases

Issue 1: Missing workflow steps

Issue 2: No troubleshooting section

Issue 3: Missing validation feedback loop

Issue 4: No code examples

General Recommendations

Grade Scale

About This Report

JSON Output

📦 Recommended: Add Universal Installer Instructions

Git URL Options

Claude Code

OpenCode

Gemini

OpenAI Codex

Install from Skillzwave Marketplace

Other Supported Agents

Metadata

Metadata

Assignees

Labels

Projects

Milestone

Relationships

Development

Issue actions