prefer-aws-cdk-cli-2-1125-for-hotswap

Flags CDK hotswap usage (cdk deploy --hotswap, --hotswap-fallback, or cdk watch) that runs on an aws-cdk CLI older than 2.1125.0.

Why it matters

• CDK CLI 2.1116.0-2.1125.0 added a Cloud Control API based hotswap engine, asset rebundling only when assets change, and synchronization against the last hotswap deployment.
• Together these reduce hotswap deployment time by at least 25% and broaden the resource types hotswap can update.
• Older CLIs fall back to a small set of hardcoded resource types and slower asset handling, which is exactly the iteration loop hotswap exists to speed up.

What it flags

• Workflow steps and package.json scripts that use CDK hotswap while the resolved aws-cdk CLI version is below 2.1125.0.
• Usage on 2.1125.0 or later is not flagged. The CLI version is resolved from the committed lockfile when available, then from an exact pin in package.json or an install step. When it cannot be resolved (for example npx cdk with a caret range and no lockfile), the rule stays silent.

Suggested action

• Upgrade the aws-cdk CLI to 2.1125.0 or later.

Verification

• Compare hotswap deployment duration and the set of resources that hotswap can update before and after the CLI upgrade.