Verify runtime behavior during local Next.js edits with a cross-check skill

Verify runtime behavior during local Next.js edits with a cross-check skill targets a $18.0B = 25M professional developers x $720/year average spend on developer tools and platform subscriptions total addressable market with medium saturation and a year-over-year growth rate of 18% annual growth in developer tooling and observability adoption.

Key trends driving demand: Framework-first developer UX -- Frameworks like Next.js increasingly expose internal dev surfaces that enable tighter tooling integration, creating opportunities for specialized dev-loop tooling.; Shift-left observability -- Teams want earlier runtime visibility (local-first RUM/observability) to catch regressions before CI/CD, increasing demand for in-loop verification.; Automation & agents -- Browser automation and agent orchestration lower friction for reproducible runtime checks during local development.; Edge & server-client blurring -- More runtime behavior is environment-dependent (edge vs server), requiring fast local verification strategies..