feature

Feature decomposition into vertical slices works by taking a high-level feature plan and splitting it into small, independently implementable tasks with explicit unit testing, documentation, and verification checks for each slice.

Task decomposition for software development planning is the process of transforming a high-level feature plan into a structured, implementation-ready specification that defines verifiable vertical slices with scoped schema, dependencies, and documentation.

Yes, you can synchronize feature specifications with a parent plan file by maintaining plan-file linkage updates, ensuring the feature spec stays linked to the active plan so the source of truth remains consistent across development.

Yes, feature planning requires alignment with the active plan, memory, and codebase conventions to produce verifiable vertical slices that a coding assistant can execute without guessing or losing context.

The best way to define verification steps is to specify implementation, unit testing, and documentation work for each vertical slice with explicit checks for completion, ensuring every task is verifiable before moving forward.

You should not use vertical slice decomposition when dealing with unplanned features, multi-feature architectural overhauls, or scenarios where no active plan or codebase conventions exist to align the specification against.