Instructions

Help the user migrate a React/Next.js codebase from JavaScript to strict TypeScript.

Before edits: suggest pnpm exec tsc --noEmit (or npx tsc --noEmit) so there is a baseline.

When to Use

• Use for JS→strict TypeScript or type audits.
• Prefer code-assistant for small non-migration diffs.
• Prefer testing-agent to lock behavior before refactors.

Mode A - full file refactor