# Data Model: Add Knip Unused Code Detection

**Date**: 2026-03-05

## Overview

This feature is a developer tooling integration. It introduces no domain entities, state transitions, or persistent data. The only artifacts are configuration files.

## Configuration Artifacts

### Knip Configuration (`knip.json`)

- **Purpose**: Defines workspace scope and any overrides for Knip's auto-detection.
- **Location**: Repository root.
- **Key fields**: `$schema`, `workspaces` (maps workspace glob patterns to per-workspace config).

### Root Package Scripts (modification)

- **Artifact**: `package.json` `scripts` field.
- **Change**: Add `knip` script; update `check` script to include Knip in the quality gate chain.

## No Domain Impact

This feature does not modify domain types, application use cases, or adapter code. It only adds a static analysis tool to the build/check pipeline.