Skill Grading Report: image-gen - Score 99/100 (A)

# 🏆 Skill Grading Report

**Score:** 99/100 | **Grade:** A

## Quick Summary

### Pillar Scores

| Pillar | Score | Max |
|--------|-------|-----|
| Spec Compliance | 13 | 15 |
| Progressive Disclosure | 29 | 30 |
| Ease of Use | 24 | 25 |
| Writing Style | 10 | 10 |
| Utility | 19 | 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:** Grok Code (via opencode)

---

## Overall Score: 99/100

| Pillar | Score | Max |
|--------|-------|-----|
| Progressive Disclosure Architecture | 29 | 30 |
| Ease of Use | 24 | 25 |
| Spec Compliance | 13 | 15 |
| Writing Style | 10 | 10 |
| Utility | 19 | 20 |
| Modifiers | +4 | ±15 |

**Grade: A**

---

## Executive Summary

This skill demonstrates excellent quality with a score of 99/100. Strongest area: **Writing Style** (10/10).

---

## Detailed Scores

### Progressive Disclosure Architecture (29/30)

| Criterion | Score | Max | Assessment |
|-----------|-------|-----|------------|
| Token Economy | 9 | 10 | Mostly efficient with few redundant phrases |
| Layered Structure | 10 | 10 | Clear separation between overview and detailed references |
| Reference Depth | 5 | 5 | Single reference file at one level deep |
| Navigation Signals | 5 | 5 | TOC present with clear hierarchical headers |

### Ease of Use (24/25)

| Criterion | Score | Max | Assessment |
|-----------|-------|-----|------------|
| Metadata Quality | 9 | 10 | Good naming and detailed description with clear triggers |
| Discoverability | 6 | 6 | Comprehensive trigger terms in description |
| Terminology Consistency | 4 | 4 | Consistent use of key terms throughout |
| Workflow Clarity | 5 | 5 | Well-structured numbered steps with checklists |

### 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 (10/10)

| Criterion | Score | Max | Assessment |
|-----------|-------|-----|------------|
| Voice And Tense | 4 | 4 | Consistent imperative form |
| Objectivity | 3 | 3 | Purely instructional without marketing language |
| Conciseness | 3 | 3 | Dense and efficient writing |

### Utility (19/20)

| Criterion | Score | Max | Assessment |
|-----------|-------|-----|------------|
| Problem Solving Power | 7 | 8 | Addresses clear gap in visual asset creation for articles |
| Degrees Of Freedom | 5 | 5 | Appropriate guidance with creative flexibility |
| Feedback Loops | 4 | 4 | Includes verification and validation steps |
| Examples And Templates | 3 | 3 | Rich examples and 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: Remove redundant workflow position note

**Severity:** Medium
**Location:** SKILL.md:When to Use This Skill
**Pillar Affected:** PDA

**Problem:** Unnecessary workflow position detail adds token overhead

**Current:**
```
**Typical workflow position**: After article content is finalized (Phase 8 in the article enhancement workflow), before SEO optimization.
```

**Suggested Rewrite:**
```
Remove the parenthetical phase reference
```

**Impact:** +1 points

---

### Issue 2: Standardize tool naming

**Severity:** Low
**Location:** SKILL.md:Overview
**Pillar Affected:** Ease of Use

**Problem:** Inconsistent capitalization of 'imagen' vs 'Imagen'

**Current:**
```
using the `imagen` CLI tool (powered by `gemini-2.5-flash-image`)
```

**Suggested Rewrite:**
```
Use 'Imagen' consistently as the tool name
```

**Impact:** +0.5 points

---

### Issue 3: Simplify CRITICAL label

**Severity:** Low
**Location:** SKILL.md:Step 4a
**Pillar Affected:** Writing Style

**Problem:** All caps CRITICAL may introduce subjective emphasis

**Current:**
```
**CRITICAL**: Integrate generated images into the article at strategic locations.
```

**Suggested Rewrite:**
```
Change to 'Important:' or remove emphasis
```

**Impact:** +0.5 points

---

### Issue 4: Add error handling guidance

**Severity:** Medium
**Location:** SKILL.md:Step 5
**Pillar Affected:** Utility

**Problem:** Missing guidance on what to do if image generation fails

**Current:**
```
Final checks without failure handling
```

**Suggested Rewrite:**
```
Add section on retrying prompts or alternative approaches
```

**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": "2025-12-29T11:20:39.062412",
  "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": 29,
      "max": 30,
      "breakdown": {
        "token_economy": {
          "score": 9,
          "max": 10,
          "assessment": "Mostly efficient with few redundant phrases"
        },
        "layered_structure": {
          "score": 10,
          "max": 10,
          "assessment": "Clear separation between overview and detailed references"
        },
        "reference_depth": {
          "score": 5,
          "max": 5,
          "assessment": "Single reference file at one level deep"
        },
        "navigation_signals": {
          "score": 5,
          "max": 5,
          "assessment": "TOC present with clear hierarchical headers"
        }
      }
    },
    "ease_of_use": {
      "total": 24,
      "max": 25,
      "breakdown": {
        "metadata_quality": {
          "score": 9,
          "max": 10,
          "assessment": "Good naming and detailed description with clear triggers"
        },
        "discoverability": {
          "score": 6,
          "max": 6,
          "assessment": "Comprehensive trigger terms in description"
        },
        "terminology_consistency": {
          "score": 4,
          "max": 4,
          "assessment": "Consistent use of key terms throughout"
        },
        "workflow_clarity": {
          "score": 5,
          "max": 5,
          "assessment": "Well-structured numbered steps with checklists"
        }
      }
    },
    "writing_style": {
      "total": 10,
      "max": 10,
      "breakdown": {
        "voice_and_tense": {
          "score": 4,
          "max": 4,
          "assessment": "Consistent imperative form"
        },
        "objectivity": {
          "score": 3,
          "max": 3,
          "assessment": "Purely instructional without marketing language"
        },
        "conciseness": {
          "score": 3,
          "max": 3,
          "assessment": "Dense and efficient writing"
        }
      }
    },
    "utility": {
      "total": 19,
      "max": 20,
      "breakdown": {
        "problem_solving_power": {
          "score": 7,
          "max": 8,
          "assessment": "Addresses clear gap in visual asset creation for articles"
        },
        "degrees_of_freedom": {
          "score": 5,
          "max": 5,
          "assessment": "Appropriate guidance with creative flexibility"
        },
        "feedback_loops": {
          "score": 4,
          "max": 4,
          "assessment": "Includes verification and validation steps"
        },
        "examples_and_templates": {
          "score": 3,
          "max": 3,
          "assessment": "Rich examples and 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": 99,
  "grade": "A",
  "critical_issues": [
    {
      "rank": 1,
      "title": "Remove redundant workflow position note",
      "severity": "Medium",
      "location": "SKILL.md:When to Use This Skill",
      "pillar": "PDA",
      "problem": "Unnecessary workflow position detail adds token overhead",
      "current": "**Typical workflow position**: After article content is finalized (Phase 8 in the article enhancement workflow), before SEO optimization.",
      "suggested": "Remove the parenthetical phase reference",
      "impact": "+1 points"
    },
    {
      "rank": 2,
      "title": "Standardize tool naming",
      "severity": "Low",
      "location": "SKILL.md:Overview",
      "pillar": "Ease of Use",
      "problem": "Inconsistent capitalization of 'imagen' vs 'Imagen'",
      "current": "using the `imagen` CLI tool (powered by `gemini-2.5-flash-image`)",
      "suggested": "Use 'Imagen' consistently as the tool name",
      "impact": "+0.5 points"
    },
    {
      "rank": 3,
      "title": "Simplify CRITICAL label",
      "severity": "Low",
      "location": "SKILL.md:Step 4a",
      "pillar": "Writing Style",
      "problem": "All caps CRITICAL may introduce subjective emphasis",
      "current": "**CRITICAL**: Integrate generated images into the article at strategic locations.",
      "suggested": "Change to 'Important:' or remove emphasis",
      "impact": "+0.5 points"
    },
    {
      "rank": 4,
      "title": "Add error handling guidance",
      "severity": "Medium",
      "location": "SKILL.md:Step 5",
      "pillar": "Utility",
      "problem": "Missing guidance on what to do if image generation fails",
      "current": "Final checks without failure handling",
      "suggested": "Add section on retrying prompts or alternative approaches",
      "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": "Grok Code",
  "grading_provider": "opencode"
}
```

---

## 📦 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	29	30
Ease of Use	24	25
Writing Style	10	10
Utility	19	20
Modifiers	+4	±15

Pillar	Score	Max
Progressive Disclosure Architecture	29	30
Ease of Use	24	25
Spec Compliance	13	15
Writing Style	10	10
Utility	19	20
Modifiers	+4	±15

Criterion	Score	Max	Assessment
Token Economy	9	10	Mostly efficient with few redundant phrases
Layered Structure	10	10	Clear separation between overview and detailed references
Reference Depth	5	5	Single reference file at one level deep
Navigation Signals	5	5	TOC present with clear hierarchical headers

Criterion	Score	Max	Assessment
Metadata Quality	9	10	Good naming and detailed description with clear triggers
Discoverability	6	6	Comprehensive trigger terms in description
Terminology Consistency	4	4	Consistent use of key terms throughout
Workflow Clarity	5	5	Well-structured numbered steps with checklists

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	4	4	Consistent imperative form
Objectivity	3	3	Purely instructional without marketing language
Conciseness	3	3	Dense and efficient writing

Criterion	Score	Max	Assessment
Problem Solving Power	7	8	Addresses clear gap in visual asset creation for articles
Degrees Of Freedom	5	5	Appropriate guidance with creative flexibility
Feedback Loops	4	4	Includes verification and validation steps
Examples And Templates	3	3	Rich examples and 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 99/100 (A) #16

Description

🏆 Skill Grading Report

Quick Summary

Pillar Scores

Issues Found: 4

📊 Full Grading Report

Skill Evaluation Report: image-gen

Overall Score: 99/100

Executive Summary

Detailed Scores

Progressive Disclosure Architecture (29/30)

Ease of Use (24/25)

Spec Compliance (13/15)

Writing Style (10/10)

Utility (19/20)

Modifiers Applied (+4)

Critical Issues (Top 4)

Issue 1: Remove redundant workflow position note

Issue 2: Standardize tool naming

Issue 3: Simplify CRITICAL label

Issue 4: Add error handling guidance

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

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