Edit Epic

Edit epic documents with comprehensive validation, cascade analysis for child stories, and diff preview before applying changes. This skill ensures epic modifications are safe and don't create conflicts with existing story implementations.

When to Use This Skill

Use this skill when you need to:

• Modify epic goals, descriptions, or requirements
• Update epic status, priority, or dependencies
• Add/remove/update success criteria or story breakdowns
• Perform full section rewrites with validation

Natural language triggers:

• "Edit epic 178 to change priority to high"
• "Update epic.246.feature-and-interface.md to add new story"
• "Modify epic 163 success criteria"