Why is my Workers code failing after deployment?

Cloudflare Workers use a V8-based runtime, not Node.js. This skill helps identify Node.js-specific APIs like 'fs' or 'process' that do not exist in the Workers environment before you deploy.

Can it help me fix 'process.env' errors?

Absolutely. The skill detects 'process.env' usage and provides immediate code examples on how to correctly access environment variables via the 'env' parameter in fetch handlers.

When does the validator activate?

The skill triggers automatically during file creation, when modifying import statements, during refactoring, or right before executing deployment commands.

Does this skill support TypeScript?

Yes, it fully supports both TypeScript and JavaScript files, including validation for Env interface definitions and modern Web API usage patterns.

How does this help with npm packages?

It checks your imported npm packages for hidden Node.js dependencies that are incompatible with the Workers runtime, preventing the deployment of broken code bundles.

Workers Runtime Validator

Name: Workers Runtime Validator
Author: hirefrank

byhirefrank

•

Cloud Infrastructure

Ensures Cloudflare Workers code compatibility by detecting incompatible Node.js APIs and enforcing proper serverless patterns in real-time.

About

The Workers Runtime Validator is a specialized Claude Code skill designed to streamline development for Cloudflare Workers by providing immediate feedback on runtime compatibility. It proactively identifies critical issues such as Node.js built-in usage, improper environment variable access, and synchronous I/O operations that would otherwise lead to deployment failures. By bridging the gap between standard Node.js environments and the specialized Workers runtime, this skill helps developers write production-ready serverless code faster while learning the specific nuances and best practices of the Cloudflare Edge platform.

Key Features

Verification of npm package compatibility for the Workers runtime
2 GitHub stars
Real-time detection of forbidden Node.js APIs like fs, path, and os
Automated remediation suggestions for fixing runtime violations
Enforcement of ES Modules usage over unsupported CommonJS patterns
Validation of environment variable access via the 'env' parameter

Use Cases

Onboarding developers to serverless and edge computing architectures
Migrating existing Node.js logic or libraries to Cloudflare Workers
Preventing deployment failures caused by 'process is not defined' errors

About

Key Features

Verification of npm package compatibility for the Workers runtime
2 GitHub stars
Real-time detection of forbidden Node.js APIs like fs, path, and os
Automated remediation suggestions for fixing runtime violations
Enforcement of ES Modules usage over unsupported CommonJS patterns
Validation of environment variable access via the 'env' parameter

Use Cases

Onboarding developers to serverless and edge computing architectures
Migrating existing Node.js logic or libraries to Cloudflare Workers
Preventing deployment failures caused by 'process is not defined' errors