Skill Grading Report: image-gen - Score 87/100 (B)

# ✅ Skill Grading Report

**Score:** 87/100 | **Grade:** B

## Quick Summary

### Pillar Scores

| Pillar | Score | Max |
|--------|-------|-----|
| Spec Compliance | 13 | 15 |
| Progressive Disclosure | 24 | 30 |
| Ease of Use | 21 | 25 |
| Writing Style | 8 | 10 |
| Utility | 17 | 20 |
| Modifiers | +4 | ±15 |

### Issues Found: 4
- 🔴 High: 0
- 🟡 Medium: 2
- 🟢 Low: 2

## 📊 Full Grading Report

# Skill Evaluation Report: image-gen

**Links:**
- 📁 **GitHub:** [SpillwaveSolutions/image_gen](https://github.com/SpillwaveSolutions/image_gen/blob/main/SKILL.md)
- 🛒 **Marketplace:** [View on SkillzWave](https://skillzwave.ai/skill/SpillwaveSolutions__image_gen__image_gen__SKILL/)
- 📊 **Tracking:** [All Graded Skills](https://github.com/SpillwaveSolutions/skill_improver/issues)

**Evaluated:** 2025-12-29
**Files Reviewed:** SKILL.md, README.md, references/prompting_guide.md
**Grading Model:** Claude (default) (via claude)

---

## Overall Score: 87/100

| Pillar | Score | Max |
|--------|-------|-----|
| Progressive Disclosure Architecture | 24 | 30 |
| Ease of Use | 21 | 25 |
| Spec Compliance | 13 | 15 |
| Writing Style | 8 | 10 |
| Utility | 17 | 20 |
| Modifiers | +4 | ±15 |

**Grade: B**

---

## Executive Summary

This skill shows solid fundamentals with a score of 87/100. Strongest area: **Spec Compliance** (13/15).

---

## Detailed Scores

### Progressive Disclosure Architecture (24/30)

| Criterion | Score | Max | Assessment |
|-----------|-------|-----|------------|
| Token Economy | 7 | 10 | Good density but some redundancy between SKILL.md prompt examples and reference guide; Step 4a/4b could be consolidated |
| Layered Structure | 8 | 10 | Effective two-layer design with SKILL.md as overview and prompting_guide.md for depth; main file is self-contained enough for immediate use |
| Reference Depth | 5 | 5 | Single reference file at one level deep; clean structure with clear purpose delineation |
| Navigation Signals | 4 | 5 | TOC present with 19 entries for 264-line file; clear H2/H3 headers but TOC slightly verbose |

### Ease of Use (21/25)

| Criterion | Score | Max | Assessment |
|-----------|-------|-----|------------|
| Metadata Quality | 8 | 10 | Name follows kebab-case; description includes 5 trigger phrases but slightly long at ~70 words |
| Discoverability | 5 | 6 | Clear triggers: 'generate images', 'create cover image', 'make article illustrations', 'create visual assets', 'add images to article' |
| Terminology Consistency | 4 | 4 | Consistent terminology: 'cover image' vs 'in-article image' maintained throughout; 'imagen' CLI consistently named |
| Workflow Clarity | 4 | 5 | Clear 5-step workflow with numbered steps and checklists; Step 4 split into 4a/4b adds minor complexity |

### Spec Compliance (13/15)

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

### Writing Style (8/10)

| Criterion | Score | Max | Assessment |
|-----------|-------|-----|------------|
| Voice And Tense | 3 | 4 | Mostly imperative ('Be specific', 'Use color-coding') but some second-person slips ('you should', 'your article') |
| Objectivity | 3 | 3 | Purely instructional with no marketing language; technical and practical throughout |
| Conciseness | 2 | 3 | Some verbose sections; example prompts are appropriately long but introductory text could be tighter |

### Utility (17/20)

| Criterion | Score | Max | Assessment |
|-----------|-------|-----|------------|
| Problem Solving Power | 7 | 8 | Addresses real gap in AI-assisted image generation for articles; comprehensive workflow from analysis to integration |
| Degrees Of Freedom | 4 | 5 | Good balance - prescriptive workflow but flexible prompt patterns; 3 common patterns offer appropriate guidance |
| Feedback Loops | 3 | 4 | Step 5 has verification checklist; 'verify all images generated successfully' pattern present but no error recovery guidance |
| Examples And Templates | 3 | 3 | Rich examples with 6+ prompt templates; comparison table for cover vs in-article; bash command templates provided |

### Modifiers Applied (+4)

**Penalties:** None
**Bonuses:** grep_friendly_structure (+1), exemplary_examples (+2), trigger_phrases_4plus (+1)

---

## Critical Issues (Top 4)

### Issue 1: Second-person voice violations

**Severity:** Low
**Location:** SKILL.md:When to Use This Skill
**Pillar Affected:** Writing Style

**Problem:** Uses 'User requests' and implied second-person throughout

**Current:**
```
User requests 'generate images for this article'
```

**Suggested Rewrite:**
```
Invoke when request includes 'generate images for this article'
```

**Impact:** +1 points

---

### Issue 2: Redundant prompt engineering content

**Severity:** Medium
**Location:** SKILL.md:Step 2-3 vs references/prompting_guide.md
**Pillar Affected:** PDA

**Problem:** SKILL.md duplicates core principles from reference guide instead of referencing it

**Current:**
```
Prompt Engineering for Covers: Style keywords, Atmosphere, Composition repeated in both files
```

**Suggested Rewrite:**
```
Keep examples in SKILL.md but reference prompting_guide.md for principles; reduce duplication by 30%
```

**Impact:** +2 points

---

### Issue 3: Missing error handling guidance

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

**Problem:** No guidance on what to do when imagen fails or produces poor results

**Current:**
```
No error recovery or retry patterns documented
```

**Suggested Rewrite:**
```
Add 'Troubleshooting' section: regeneration strategies, prompt refinement for poor outputs
```

**Impact:** +1 points

---

### Issue 4: Step 4 unnecessary split

**Severity:** Low
**Location:** SKILL.md:Step 4a/4b
**Pillar Affected:** Ease of Use

**Problem:** Splitting integration and ALT text into separate sub-steps adds complexity without benefit

**Current:**
```
Step 4a: Integrate Images, Step 4b: Write ALT Text
```

**Suggested Rewrite:**
```
Consolidate into 'Step 4: Integrate Images with ALT Text' - both are part of integration
```

**Impact:** +1 points

---

## 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 [improving-skills 5-pillar rubric](https://github.com/anthropics/claude-code/tree/main/skills/improving-skills).

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

*Report generated for [SpillwaveSolutions/image_gen](https://github.com/SpillwaveSolutions/image_gen/blob/main/SKILL.md)*

## JSON Output

```json
{
  "skill_name": "image-gen",
  "evaluated_at": "2025-12-29T10:55:09.507241",
  "files_reviewed": [
    "SKILL.md",
    "README.md",
    "references/prompting_guide.md"
  ],
  "scores": {
    "spec_compliance": {
      "total": 13,
      "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": 4,
          "max": 4,
          "assessment": "Third-person with good trigger coverage"
        },
        "optional_fields": {
          "score": 0,
          "max": 2,
          "assessment": "No optional fields used (no penalty)"
        }
      }
    },
    "pda": {
      "total": 24,
      "max": 30,
      "breakdown": {
        "token_economy": {
          "score": 7,
          "max": 10,
          "assessment": "Good density but some redundancy between SKILL.md prompt examples and reference guide; Step 4a/4b could be consolidated"
        },
        "layered_structure": {
          "score": 8,
          "max": 10,
          "assessment": "Effective two-layer design with SKILL.md as overview and prompting_guide.md for depth; main file is self-contained enough for immediate use"
        },
        "reference_depth": {
          "score": 5,
          "max": 5,
          "assessment": "Single reference file at one level deep; clean structure with clear purpose delineation"
        },
        "navigation_signals": {
          "score": 4,
          "max": 5,
          "assessment": "TOC present with 19 entries for 264-line file; clear H2/H3 headers but TOC slightly verbose"
        }
      }
    },
    "ease_of_use": {
      "total": 21,
      "max": 25,
      "breakdown": {
        "metadata_quality": {
          "score": 8,
          "max": 10,
          "assessment": "Name follows kebab-case; description includes 5 trigger phrases but slightly long at ~70 words"
        },
        "discoverability": {
          "score": 5,
          "max": 6,
          "assessment": "Clear triggers: 'generate images', 'create cover image', 'make article illustrations', 'create visual assets', 'add images to article'"
        },
        "terminology_consistency": {
          "score": 4,
          "max": 4,
          "assessment": "Consistent terminology: 'cover image' vs 'in-article image' maintained throughout; 'imagen' CLI consistently named"
        },
        "workflow_clarity": {
          "score": 4,
          "max": 5,
          "assessment": "Clear 5-step workflow with numbered steps and checklists; Step 4 split into 4a/4b adds minor complexity"
        }
      }
    },
    "writing_style": {
      "total": 8,
      "max": 10,
      "breakdown": {
        "voice_and_tense": {
          "score": 3,
          "max": 4,
          "assessment": "Mostly imperative ('Be specific', 'Use color-coding') but some second-person slips ('you should', 'your article')"
        },
        "objectivity": {
          "score": 3,
          "max": 3,
          "assessment": "Purely instructional with no marketing language; technical and practical throughout"
        },
        "conciseness": {
          "score": 2,
          "max": 3,
          "assessment": "Some verbose sections; example prompts are appropriately long but introductory text could be tighter"
        }
      }
    },
    "utility": {
      "total": 17,
      "max": 20,
      "breakdown": {
        "problem_solving_power": {
          "score": 7,
          "max": 8,
          "assessment": "Addresses real gap in AI-assisted image generation for articles; comprehensive workflow from analysis to integration"
        },
        "degrees_of_freedom": {
          "score": 4,
          "max": 5,
          "assessment": "Good balance - prescriptive workflow but flexible prompt patterns; 3 common patterns offer appropriate guidance"
        },
        "feedback_loops": {
          "score": 3,
          "max": 4,
          "assessment": "Step 5 has verification checklist; 'verify all images generated successfully' pattern present but no error recovery guidance"
        },
        "examples_and_templates": {
          "score": 3,
          "max": 3,
          "assessment": "Rich examples with 6+ prompt templates; comparison table for cover vs in-article; bash command templates provided"
        }
      }
    }
  },
  "modifiers": {
    "penalties": [],
    "bonuses": [
      {
        "name": "grep_friendly_structure",
        "points": 1
      },
      {
        "name": "exemplary_examples",
        "points": 2
      },
      {
        "name": "trigger_phrases_4plus",
        "points": 1
      }
    ],
    "net": 4
  },
  "final_score": 87,
  "grade": "B",
  "critical_issues": [
    {
      "rank": 1,
      "title": "Second-person voice violations",
      "severity": "Low",
      "location": "SKILL.md:When to Use This Skill",
      "pillar": "Writing Style",
      "problem": "Uses 'User requests' and implied second-person throughout",
      "current": "User requests 'generate images for this article'",
      "suggested": "Invoke when request includes 'generate images for this article'",
      "impact": "+1 points"
    },
    {
      "rank": 2,
      "title": "Redundant prompt engineering content",
      "severity": "Medium",
      "location": "SKILL.md:Step 2-3 vs references/prompting_guide.md",
      "pillar": "PDA",
      "problem": "SKILL.md duplicates core principles from reference guide instead of referencing it",
      "current": "Prompt Engineering for Covers: Style keywords, Atmosphere, Composition repeated in both files",
      "suggested": "Keep examples in SKILL.md but reference prompting_guide.md for principles; reduce duplication by 30%",
      "impact": "+2 points"
    },
    {
      "rank": 3,
      "title": "Missing error handling guidance",
      "severity": "Medium",
      "location": "SKILL.md:Workflow",
      "pillar": "Utility",
      "problem": "No guidance on what to do when imagen fails or produces poor results",
      "current": "No error recovery or retry patterns documented",
      "suggested": "Add 'Troubleshooting' section: regeneration strategies, prompt refinement for poor outputs",
      "impact": "+1 points"
    },
    {
      "rank": 4,
      "title": "Step 4 unnecessary split",
      "severity": "Low",
      "location": "SKILL.md:Step 4a/4b",
      "pillar": "Ease of Use",
      "problem": "Splitting integration and ALT text into separate sub-steps adds complexity without benefit",
      "current": "Step 4a: Integrate Images, Step 4b: Write ALT Text",
      "suggested": "Consolidate into 'Step 4: Integrate Images with ALT Text' - both are part of integration",
      "impact": "+1 points"
    }
  ],
  "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/SpillwaveSolutions/image_gen

# SSH URL
skilz install --git git@github.com:SpillwaveSolutions/image_gen.git
```

### Claude Code

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

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

### OpenCode

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

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

### Gemini

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

### OpenAI Codex

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

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


### Install from Skillzwave Marketplace
```
# Claude to user home dir ~/.claude/skills
skilz install SpillwaveSolutions_image_gen/image_gen

# Claude skill in project folder ./claude/skills
skilz install SpillwaveSolutions_image_gen/image_gen --project

# OpenCode install to user home dir ~/.config/opencode/skills
skilz install SpillwaveSolutions_image_gen/image_gen --agent opencode

# OpenCode project level
skilz install SpillwaveSolutions_image_gen/image_gen --agent opencode --project

# OpenAI Codex install to user home dir ~/.codex/skills
skilz install SpillwaveSolutions_image_gen/image_gen

# OpenAI Codex project level ./.codex/skills
skilz install SpillwaveSolutions_image_gen/image_gen --agent opencode --project


# Gemini CLI (project level) -- only works with project level
skilz install SpillwaveSolutions_image_gen/image_gen --agent gemini

```

See this site [skill Listing](https://skillzwave.ai/skill/SpillwaveSolutions__image_gen__image_gen__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	13	15
Progressive Disclosure	24	30
Ease of Use	21	25
Writing Style	8	10
Utility	17	20
Modifiers	+4	±15

Pillar	Score	Max
Progressive Disclosure Architecture	24	30
Ease of Use	21	25
Spec Compliance	13	15
Writing Style	8	10
Utility	17	20
Modifiers	+4	±15

Criterion	Score	Max	Assessment
Token Economy	7	10	Good density but some redundancy between SKILL.md prompt examples and reference guide; Step 4a/4b could be consolidated
Layered Structure	8	10	Effective two-layer design with SKILL.md as overview and prompting_guide.md for depth; main file is self-contained enough for immediate use
Reference Depth	5	5	Single reference file at one level deep; clean structure with clear purpose delineation
Navigation Signals	4	5	TOC present with 19 entries for 264-line file; clear H2/H3 headers but TOC slightly verbose

Criterion	Score	Max	Assessment
Metadata Quality	8	10	Name follows kebab-case; description includes 5 trigger phrases but slightly long at ~70 words
Discoverability	5	6	Clear triggers: 'generate images', 'create cover image', 'make article illustrations', 'create visual assets', 'add images to article'
Terminology Consistency	4	4	Consistent terminology: 'cover image' vs 'in-article image' maintained throughout; 'imagen' CLI consistently named
Workflow Clarity	4	5	Clear 5-step workflow with numbered steps and checklists; Step 4 split into 4a/4b adds minor complexity

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

Criterion	Score	Max	Assessment
Voice And Tense	3	4	Mostly imperative ('Be specific', 'Use color-coding') but some second-person slips ('you should', 'your article')
Objectivity	3	3	Purely instructional with no marketing language; technical and practical throughout
Conciseness	2	3	Some verbose sections; example prompts are appropriately long but introductory text could be tighter

Criterion	Score	Max	Assessment
Problem Solving Power	7	8	Addresses real gap in AI-assisted image generation for articles; comprehensive workflow from analysis to integration
Degrees Of Freedom	4	5	Good balance - prescriptive workflow but flexible prompt patterns; 3 common patterns offer appropriate guidance
Feedback Loops	3	4	Step 5 has verification checklist; 'verify all images generated successfully' pattern present but no error recovery guidance
Examples And Templates	3	3	Rich examples with 6+ prompt templates; comparison table for cover vs in-article; bash command templates provided

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

Skill Grading Report: image-gen - Score 87/100 (B) #11

Description

✅ Skill Grading Report

Quick Summary

Pillar Scores

Issues Found: 4

📊 Full Grading Report

Skill Evaluation Report: image-gen

Overall Score: 87/100

Executive Summary

Detailed Scores

Progressive Disclosure Architecture (24/30)

Ease of Use (21/25)

Spec Compliance (13/15)

Writing Style (8/10)

Utility (17/20)

Modifiers Applied (+4)

Critical Issues (Top 4)

Issue 1: Second-person voice violations

Issue 2: Redundant prompt engineering content

Issue 3: Missing error handling guidance

Issue 4: Step 4 unnecessary split

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

Type

Projects

Milestone

Relationships

Development

Issue actions