What problem does it solve? Splitting an existing feature into a new feature requires careful coordination: validating that no selected story is in-progress, creating a complete new feature shell in the governance repo, and moving story files without corrupting governance metadata. This Skill enforces that sequence so splits stay atomic and auditable. ## Core Features & Use Cases - Split Validation: Runs validate-split against a sprint plan or story files and hard-stops if any selected story is in-progress. - Feature Shell Creation: Creates the new feature directory with feature.yaml, summary.md, a stories/ folder, and a feature-index.yaml entry, with duplicate detection. - Story Migration with Dry-Run: Moves story files between features with dry-run previews, destination conflict checks, and rollback on partial failure. - Use Case: You want to carve MFA stories out of an auth-login feature into a new auth-mfa feature. The Skill validates the boundary, confirms the plan, dry-runs the creation and moves, then executes and reports any stale feature: frontmatter. ## Quick Start Ask the assistant to split stories story-3 and story-4 from the auth-login feature into a new auth-mfa feature, starting with validation and a dry-run before live execution.
