| name | dep-upgrade |
| description | Analyze a major version dependency upgrade: summarize breaking changes, assess project impact, and propose new features to adopt. Outputs a plan.md and executes the upgrade. |
Analyze and execute the major version upgrade for: $ARGUMENTS
- Analyze — fetch the official migration guide via WebFetch; apply the checklist in instructions.md
- Generate plan — create
docs/dev-notes/YYYY-MM-DD/{package}-upgrade/plan.md with breaking changes, impact, and new features; stop and ask for confirmation
- Execute — update
package.json, run pnpm install && pnpm lint && pnpm check && pnpm test:unit; update the plan checklist when done