Sync Markdown

Overview

This skill automates full re-rendering of gallery project HTML from text.md markdown source files. It does NOT compare differences - it completely regenerates the HTML content between SYNC markers based on text.md and styling rules from /.claude/references/GALLERY_GUIDE.md.

When to Use

• User provides a gallery index.html path (e.g., gallery/project-name/index.html)
• User says "sync markdown", "sync text.md", "update gallery content"
• User needs to refresh HTML after editing markdown or adjusting formatting
• User wants to apply updated spacing/styling rules to existing content

Workflow

1. Extract Project Directory

When user provides an index.html path:

• Extract the project directory: gallery/<project-slug>/
• Example: /path/to/gallery/Rider-Dispatch-Scheduling-Platform/index.html → gallery/Rider-Dispatch-Scheduling-Platform/

2. Locate Source Files

Find required files in the project directory:

• text.md - Markdown source (single source of truth for content)
• index.html - Target HTML file
• public/ - Images directory

3. Validate Prerequisites

Check that files exist and are properly configured:

• ✓ text.md exists
• ✓ index.html exists
• ✓ SYNC markers present: <!-- SYNC:CONTENT-START --> and <!-- SYNC:CONTENT-END -->
• ✓ Images referenced in text.md exist in public/ directory

If SYNC markers are missing, add them to index.html before syncing.

4. Execute Full Sync

Run the sync script from project root:

# Using directory path
node scripts/sync-gallery.js --dir gallery/<project-slug>

# Using slug
node scripts/sync-gallery.js --slug <project-slug>

# Override layout detection
node scripts/sync-gallery.js --dir gallery/<project-slug> --type two-column|stacked

What happens:

1. Script reads text.md completely (no diff comparison)
2. Parses markdown following GALLERY_GUIDE.md rules:
   • Sections: ## or ### headers
   • Subsections: #### headers
   • Paragraphs: Text blocks separated by blank lines
   • Lists: - item format
   • Images: ![alt](./public/img.png) or 0.8 ![alt](src) for scaled images
3. Auto-detects layout type (two-column or stacked) from existing HTML
4. Renders all content into proper HTML structure with correct spacing
5. Completely replaces everything between SYNC markers
6. Preserves metadata, hero image, header, footer sections

5. Verify Output

Check script success message:

Synced /path/to/gallery/project-name (two-column) with 6 sections.

Verify in browser or HTML:

• ✓ Section count matches text.md
• ✓ Layout type is correct (two-column or stacked)
• ✓ Images display properly
• ✓ Text formatting preserved (bold, italic, links)
• ✓ Spacing matches GALLERY_GUIDE.md rules

Content Format Rules

All formatting rules are defined in /.claude/references/GALLERY_GUIDE.md.

Key reminders:

• Blank lines control spacing - no blank line = same paragraph
• Sections use ### headers
• Subsections use #### headers
• Images use ./public/ relative paths
• Lists need blank lines before/after for proper spacing

For detailed formatting rules, always refer to /.claude/references/GALLERY_GUIDE.md.

Common Issues

SYNC markers not found

Problem: index.html missing sync markers.

Solution: Add markers around content area:

<div class="project-content">
    <!-- SYNC:CONTENT-START -->
    <!-- content will be inserted here -->
    <!-- SYNC:CONTENT-END -->
</div>

Images not showing

Problem: Image paths incorrect or files missing.

Fix:

• Use ./public/<name>.ext format in text.md
• Verify images exist in gallery/<slug>/public/ directory
• Check filenames match exactly (case-sensitive)

Wrong layout detected

Problem: Script uses wrong template (two-column vs stacked).

Fix: Override with --type flag:

node scripts/sync-gallery.js --dir gallery/<slug> --type two-column

Spacing looks wrong

Problem: Paragraphs merged or missing spacing.

Fix: Check text.md for blank lines between:

• Paragraphs
• Lists and paragraphs
• Subsection titles
• Images and text

Refer to /.claude/references/GALLERY_GUIDE.md for spacing rules.

Batch Sync (Advanced)

Sync all gallery projects at once:

for dir in gallery/*/; do
  [ -f "$dir/text.md" ] && node scripts/sync-gallery.js --dir "$dir"
done

Important Notes

• No diff comparison: Script fully re-renders from text.md every time
• Complete replacement: All content between SYNC markers is replaced
• Formatting adjustments: Use this when you update spacing/styling rules in GALLERY_GUIDE.md
• Single source of truth: text.md is authoritative; HTML is generated output

Resources

Sync Script:

• scripts/sync-gallery.js - Main synchronization engine

Formatting Guide:

• /.claude/references/GALLERY_GUIDE.md - Complete content authoring and styling rules