Task management guidelines for Decap CMS:
- File structure (tasks-index vs tasks directories)
- Required frontmatter fields and valid values
- Priority levels with colors (P0-P4)
- Task body template with sections
- When to create full specs vs simple tasks
- Common tags for filtering
- Mobile task manager compatibility notes
- Task creation checklist
Updated SKILLS-INDEX.md with new skill entry.
Chronicler: #68
