Cover Image Generator Generate elegant cover images for articles with 5-dimensional customization. Usage
Auto-select dimensions based on content
/baoyu-cover-image path/to/article.md
Quick mode: skip confirmation
/baoyu-cover-image article.md --quick
Specify dimensions
/baoyu-cover-image article.md --type conceptual --palette warm --rendering flat-vector
Style presets (shorthand for palette + rendering)
/baoyu-cover-image article.md --style blueprint
With reference images
/baoyu-cover-image article.md --ref style-ref.png
Direct content input
- /baoyu-cover-image
- --palette
- mono
- --aspect
- 1
- :1
- --quick
- [
- paste content
- ]
- Options
- Option
- Description
- --type
- hero, conceptual, typography, metaphor, scene, minimal
- --palette
- warm, elegant, cool, dark, earth, vivid, pastel, mono, retro, duotone
- --rendering
- flat-vector, hand-drawn, painterly, digital, pixel, chalk, screen-print
- --style
- Preset shorthand (see
- Style Presets
- )
- --text
- none, title-only, title-subtitle, text-rich
- --mood
- subtle, balanced, bold
- --font
- clean, handwritten, serif, display
- --aspect
- 16:9 (default), 2.35:1, 4:3, 3:2, 1:1, 3:4
- --lang
- Title language (en, zh, ja, etc.)
- --no-title
- Alias for
- --text none
- --quick
- Skip confirmation, use auto-selection
- --ref
- 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, duotone
- auto
- Rendering
- flat-vector, hand-drawn, painterly, digital, pixel, chalk, screen-print
- 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
- Galleries
- Types
-
- hero, conceptual, typography, metaphor, scene, minimal
- → Details:
- references/types.md
- Palettes
-
- warm, elegant, cool, dark, earth, vivid, pastel, mono, retro, duotone
- → Details:
- references/palettes/
- Renderings
-
- flat-vector, hand-drawn, painterly, digital, pixel, chalk, screen-print
- → Details:
- references/renderings/
- Text Levels
-
- none (pure visual) | title-only (default) | title-subtitle | text-rich (with tags)
- → Details:
- references/dimensions/text.md
- Mood Levels
-
- subtle (low contrast) | balanced (default) | bold (high contrast)
- → Details:
- references/dimensions/mood.md
- Fonts
-
- clean (sans-serif) | handwritten | serif | display (bold decorative)
- → Details:
- 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}/
/ - ├── 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):
macOS, Linux, WSL, Git Bash
test -f .baoyu-skills/baoyu-cover-image/EXTEND.md && echo "project" test -f " ${XDG_CONFIG_HOME :- $HOME / .config} /baoyu-skills/baoyu-cover-image/EXTEND.md" && echo "xdg" test -f " $HOME /.baoyu-skills/baoyu-cover-image/EXTEND.md" && echo "user"
PowerShell (Windows)
- if
- (
- Test-Path
- .
- baoyu-skills/baoyu-cover-image/EXTEND
- .
- md
- )
- {
- "project"
- }
- $xdg
- =
- if
- (
- $env
- :XDG_CONFIG_HOME
- )
- {
- $env
- :XDG_CONFIG_HOME
- }
- else
- {
- "
- $HOME
- /.config"
- }
- if
- (
- Test-Path
- "
- $xdg
- /baoyu-skills/baoyu-cover-image/EXTEND.md"
- )
- {
- "xdg"
- }
- if
- (
- Test-Path
- "
- $HOME
- /.baoyu-skills/baoyu-cover-image/EXTEND.md"
- )
- {
- "user"
- }
- Result
- Action
- Found
- Load, display summary → Continue
- Not found
- ⛔ Run first-time setup (
- references/config/first-time-setup.md
- ) → Save → Continue
- CRITICAL
-
- If not found, complete setup BEFORE any other steps or questions.
- Step 1: Analyze Content
- Save reference images
- (if provided) →
- references/workflow/reference-images.md
- Save source content
- (if pasted, save to
- source.md
- )
- Analyze content
-
- topic, tone, keywords, visual metaphors
- Deep analyze references
- ⚠️: Extract specific, concrete elements (see reference-images.md)
- If references contain
- people
- → set
- usage: direct
- so model sees reference image, describe character features for stylized preservation (see reference-images.md § Character Analysis)
- Detect language
-
- Compare source, user input, EXTEND.md preference
- Determine output directory
-
- Per File Structure rules
- Step 2: Confirm Options ⚠️
- Full confirmation flow:
- references/workflow/confirm-options.md
- Condition
- Skipped
- Still Asked
- --quick
- or
- quick_mode: true
- 6 dimensions
- Aspect ratio (unless
- --aspect
- )
- All 6 +
- --aspect
- specified
- All
- None
- Step 3: Create Prompt
- Save to
- prompts/cover.md
- . Template:
- references/workflow/prompt-template.md
- CRITICAL - References in Frontmatter
- :
- Files saved to
- refs/
- → Add to frontmatter
- references
- list
- Style extracted verbally (no file) → Omit
- references
- , describe in body
- Before writing → Verify:
- test -f refs/ref-NN-{slug}.{ext}
- Reference elements in body
- MUST be detailed, prefixed with "MUST"/"REQUIRED", with integration approach.
- Step 4: Generate Image
- Backup existing
- cover.png
- if regenerating
- Check image generation skills
- ; if multiple, ask preference
- Process references
- from prompt frontmatter:
- direct
- usage → pass via
- --ref
- (use ref-capable backend)
- style
- /
- palette
- → extract traits, append to prompt
- Generate
-
- Call skill with prompt file, output path, aspect ratio
- On failure: auto-retry once
- Step 5: Completion Report
- Cover Generated!
- Topic: [topic]
- Type: [type] | Palette: [palette] | Rendering: [rendering]
- Text: [text] | Mood: [mood] | Font: [font] | Aspect: [ratio]
- Title: [title or "visual only"]
- Language: [lang] | Watermark: [enabled/disabled]
- References: [N images or "extracted style" or "none"]
- Location: [directory path]
- Files:
- ✓ source-{slug}.{ext}
- ✓ prompts/cover.md
- ✓ cover.png
- Image Modification
- Action
- Steps
- Regenerate
- Backup → Update prompt file FIRST → Regenerate
- Change dimension
- Backup → Confirm new value → Update prompt → Regenerate
- Composition Principles
- Whitespace
-
- 40-60% breathing room
- Visual anchor
-
- Main element centered or offset left
- Characters
-
- Simplified silhouettes; NO realistic humans
- Title
- Use exact title from user/source; never invent Extension Support Custom configurations via EXTEND.md. See Step 0 for paths. Supports: Watermark | Preferred dimensions | Default aspect/output | Quick mode | Custom palettes | Language Schema: references/config/preferences-schema.md References Dimensions : text.md | mood.md | font.md Palettes : references/palettes/ Renderings : references/renderings/ Types : references/types.md Auto-Selection : references/auto-selection.md Style Presets : references/style-presets.md Compatibility : references/compatibility.md Visual Elements : references/visual-elements.md Workflow : confirm-options.md | prompt-template.md | reference-images.md Config : preferences-schema.md | first-time-setup.md | watermark-guide.md