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deployment-expert

Diagnose and fix Vercel and Railway deployment failures.

Updated Nov 23, 2025
Search Tags:#devops#debugging#deployment#vercel#environment variables#build failures#railway
One-click install
npx skills add https://github.com/ak-eyther/model-project --skill deployment-expert-ak-eyther
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: deployment-expert
Source: https://github.com/ak-eyther/model-project/tree/main/codex/skills/deployment-expert
Command: npx skills add https://github.com/ak-eyther/model-project --skill deployment-expert-ak-eyther

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill helps diagnose and fix deployment problems on Vercel and Railway, including failed builds, broken environment variables, runtime crashes, domain issues, and start-command misconfigurations.

Core Features & Use Cases

  • Vercel troubleshooting: Investigates build failures, framework detection issues, environment variable scope, and DNS or SSL problems.
  • Railway troubleshooting: Debugs build logs, runtime logs, token authorization, port binding, database connectivity, and health checks.
  • Cross-platform guidance: Recommends when to place the frontend on Vercel and the backend on Railway, with practical hybrid architecture patterns.
  • Use case: A Next.js frontend fails in production while the FastAPI backend returns intermittent errors, and this Skill guides the exact checks needed to isolate whether the issue is build configuration, environment variables, or runtime startup behavior.

Quick Start

Ask the deployment expert skill to diagnose my Vercel or Railway deployment failure and give me the exact fix.

Frequently Asked Questions about deployment-expert

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

FAQPage Schema
Why does my Vercel deployment fail during the build step?▼

Vercel deployment build failures are diagnosed by investigating build logs, framework detection issues, and environment variable scope. This Skill analyzes your build configuration to isolate the exact cause of your build error.

How do I debug Railway runtime errors and port binding issues?▼

Debug Railway runtime errors and port binding failures by examining runtime logs, verifying start commands, and running health checks. This Skill validates your port configuration and database connectivity to restore reliable production startup behavior.

Can I host a Next.js frontend on Vercel and a FastAPI backend on Railway?▼

You can host a Next.js frontend on Vercel and a FastAPI backend on Railway using cross-platform hybrid architecture patterns. This Skill recommends when to split your stack and validates the environment variables connecting the frontend and backend.

What is the best way to fix domain and DNS issues on Vercel?▼

Fix Vercel domain and DNS issues by validating platform-specific configuration and checking SSL certificate provisioning. This Skill guides the exact CLI-based investigation needed to resolve custom domain mapping and verification failures.

How do I troubleshoot Railway token authorization and database connectivity problems?▼

Troubleshoot Railway token authorization and database connectivity problems by running token-aware CLI workflows and health checks. This Skill verifies your database connection strings and authorization tokens to isolate intermittent runtime errors.

Vercel environment variables are not working in production, how do I fix this?▼

Fix Vercel environment variables not working in production by validating their scope and availability during the build phase. This Skill checks whether your variables are correctly exposed to your deployment environment to resolve undefined runtime values.

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