/canghe-cover-image

name: canghe-cover-image
description: Generates article cover images with 5 dimensions (type, palette, rendering, text, mood) combining 9 color palettes and 6 rendering styles. Supports cinematic (2.35:1), widescreen (16:9), and square (1:1) aspects. Use when user asks to "generate cover image", "create article cover", or "make cover".

Cover Image Generator

Generate elegant cover images for articles with 5-dimensional customization.

Usage

# Auto-select dimensions based on content
/canghe-cover-image path/to/article.md

# Quick mode: skip confirmation
/canghe-cover-image article.md --quick

# Specify dimensions
/canghe-cover-image article.md --type conceptual --palette warm --rendering flat-vector

# Style presets (shorthand for palette + rendering)
/canghe-cover-image article.md --style blueprint

# With reference images
/canghe-cover-image article.md --ref style-ref.png

# Direct content input
/canghe-cover-image --palette mono --aspect 1:1 --quick
[paste content]

Options

| Option | Description | |--------|-------------| | `--type <name>` | hero, conceptual, typography, metaphor, scene, minimal | | `--palette <name>` | warm, elegant, cool, dark, earth, vivid, pastel, mono, retro | | `--rendering <name>` | flat-vector, hand-drawn, painterly, digital, pixel, chalk | | `--style <name>` | Preset shorthand (see [Style Presets](references/style-presets.md)) | | `--text <level>` | none, title-only, title-subtitle, text-rich | | `--mood <level>` | subtle, balanced, bold | | `--font <name>` | clean, handwritten, serif, display | | `--aspect <ratio>` | 16:9 (default), 2.35:1, 4:3, 3:2, 1:1, 3:4 | | `--lang <code>` | Title language (en, zh, ja, etc.) | | `--no-title` | Alias for `--text none` | | `--quick` | Skip confirmation, use auto-selection | | `--ref <files...>` | Reference images for style/composition guidance |

Five Dimensions

| Dimension | Values | Default | |-----------|--------|---------| | **Type** | hero, conceptual, typography, metaphor, scene, minimal | auto | | **Palette** | warm, elegant, cool, dark, earth, vivid, pastel, mono, retro | auto | | **Rendering** | flat-vector, hand-drawn, painterly, digital, pixel, chalk | auto | | **Text** | none, title-only, title-subtitle, text-rich | title-only | | **Mood** | subtle, balanced, bold | balanced | | **Font** | clean, handwritten, serif, display | clean |

Auto-selection rules: [references/auto-selection.md](references/auto-selection.md)

Galleries

**Types**: hero, conceptual, typography, metaphor, scene, minimal → Details: [references/types.md](references/types.md)

**Palettes**: warm, elegant, cool, dark, earth, vivid, pastel, mono, retro → Details: [references/palettes/](references/palettes/)

**Renderings**: flat-vector, hand-drawn, painterly, digital, pixel, chalk → Details: [references/renderings/](references/renderings/)

**Text Levels**: none (pure visual) | title-only (default) | title-subtitle | text-rich (with tags) → Details: [references/dimensions/text.md](references/dimensions/text.md)

**Mood Levels**: subtle (low contrast) | balanced (default) | bold (high contrast) → Details: [references/dimensions/mood.md](references/dimensions/mood.md)

**Fonts**: clean (sans-serif) | handwritten | serif | display (bold decorative) → Details: [references/dimensions/font.md](references/dimensions/font.md)

File Structure

Output directory per `default_output_dir` preference:

• `same-dir`: `{article-dir}/`
• `imgs-subdir`: `{article-dir}/imgs/`
• `independent` (default): `cover-image/{topic-slug}/`

<output-dir>/
├── source-{slug}.{ext}    # Source files
├── refs/                  # Reference images (if provided)
│   ├── ref-01-{slug}.{ext}
│   └── ref-01-{slug}.md   # Description file
├── prompts/cover.md       # Generation prompt
└── cover.png              # Output image

**Slug**: 2-4 words, kebab-case. Conflict: append `-YYYYMMDD-HHMMSS`

Workflow

Progress Checklist

Cover Image Progress:
- [ ] Step 0: Check preferences (EXTEND.md) ⛔ BLOCKING
- [ ] Step 1: Analyze content + save refs + determine output dir
- [ ] Step 2: Confirm options (6 dimensions) ⚠️ unless --quick
- [ ] Step 3: Create prompt
- [ ] Step 4: Generate image
- [ ] Step 5: Completion report

Flow

Input → [Step 0: Preferences] ─┬─ Found → Continue
                               └─ Not found → First-Time Setup ⛔ BLOCKING → Save EXTEND.md → Continue
        ↓
Analyze + Save Refs → [Output Dir] → [Confirm: 6 Dimensions] → Prompt → Generate → Complete
                                              ↓
                                     (skip if --quick or all specified)

Step 0: Load Preferences ⛔ BLOCKING

Check EXTEND.md existence (priority: project → user):

test -f .canghe-skills/canghe-cover-image/EXTEND.md && echo "project"
test -f "$HOME/.canghe-skills/canghe-cover-image/EXTEND.md" && echo "user"

| Result | Action | |--------|--------| | Found | Load, display summary → Continue | | Not found | ⛔ Run first-time setup ([references/config/first-time-setup.md](references/config/first-time-setup.md)) → Save → Continue |

**CRITICAL**: If not found, complete setup BEFORE any other steps or questions.

Step 1: Analyze Content

1. **Save reference images** (if provided) → [references/workflow/reference-images.md](references/workflow/reference-images.md) 2. **Save source content** (if pasted, save to `source.md`) 3. **Analyze content**: topic, tone, keywords, visual metaphors 4. **Deep analyze references** ⚠️: Extract specific, concrete elements (see reference-images.md) 5. **Detect language**: Compare source, user input, EXTEND.md preference 6. **Determine output directory**: Per File Structure rules

Step 2: Confirm Options ⚠️

Full confirmation flow: [references/workflow/confirm-options.md](references/workflow/confirm-options.md)

| Condition | Skipped | Still Asked | |-----------|---------|-------------| | `--quick` or `quick_mode: true` | 6 dimensions | Aspect rat