next-dev-loop

Validate Next.js runtime behavior by synchronizing Turbopack compilation with browser introspection.

Updated Jul 18, 2026
One-click install
npx skills add https://github.com/ri-ru/cyrano --skill next-dev-loop-ri-ru
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: next-dev-loop
Source: https://github.com/ri-ru/cyrano/tree/main/.agents/skills/next-dev-loop
Command: npx skills add https://github.com/ri-ru/cyrano --skill next-dev-loop-ri-ru

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill bridges the gap between code changes and runtime verification, ensuring that your Next.js application behaves as expected in the browser rather than just passing build-time checks.

Core Features & Use Cases

  • Runtime Verification: Cross-references Next.js internal state via the MCP endpoint with real-time browser introspection.
  • Error Detection: Identifies compilation issues, server-side errors, and client-side React behavior simultaneously.
  • Use Case: When refactoring a complex server component, use this skill to confirm that the UI updates correctly, state remains consistent, and no new hydration errors are introduced during the development loop.

Quick Start

Initialize the development loop by running the preflight check to confirm that both the Next.js MCP endpoint and the agent-browser session are correctly configured and ready for interaction.

Frequently Asked Questions about next-dev-loop

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I verify Next.js server-client boundaries during development?

You can verify Next.js server-client boundaries by synchronizing Turbopack compilation status with headless browser introspection. This approach cross-references internal state via the MCP endpoint to validate server-client boundaries in real-time.

Why does my Next.js app pass build checks but fail at runtime?

Your Next.js app may fail at runtime because build-time checks do not capture client-side React behavior or hydration errors. Runtime verification identifies compilation issues, server-side errors, and client-side React behavior simultaneously to bridge this gap.

How do I debug React hydration errors introduced during a refactoring loop?

To debug React hydration errors during a refactoring loop, use runtime verification to cross-reference Next.js internal state with real-time browser introspection. This confirms that UI updates correctly and state remains consistent without introducing new errors.

Does Next.js runtime verification work with Turbopack and agent-browser?

Next.js runtime verification requires Next.js 16.3+ with Turbopack and agent-browser 0.31.1+ to maintain session-scoped testing environments. A preflight check confirms both the MCP endpoint and browser session are correctly configured.

What is the best way to detect server-side errors in a Next.js dev loop?

The best way to detect server-side errors in a Next.js dev loop is to cross-reference internal state via the MCP endpoint with real-time browser introspection. This targets development workflows requiring high-fidelity error detection.

Why is runtime verification needed instead of build-time checks for Next.js?

Runtime verification is needed because it ensures your Next.js application behaves as expected in the browser rather than just passing build-time checks. It bridges the gap between code changes and actual runtime behavior.