Why is 95% test coverage required?

High coverage ensures that logic changes are verified across nearly all code paths, significantly reducing regression risks in complex enterprise-grade TypeScript applications.

Is it compatible with pnpm or yarn?

Yes, the skill supports npm, pnpm, and yarn, provided the chosen package manager is used consistently across the development team and CI/CD pipeline.

Can I use this with Jest instead of Vitest?

Yes, while Vitest is the recommended default for speed and ESM compatibility, the skill's testing patterns are compatible with Jest as an alternative framework.

Does this skill support older versions of TypeScript?

While it's optimized for TypeScript 5.3+, the principles of strict mode and automated quality checks can be adapted to older versions, though modern ESM features are highly recommended.

How does this skill improve CI/CD workflows?

It ensures that local automation commands exactly match GitHub Actions workflows, preventing 'it works on my machine' errors and ensuring lockfile consistency.

TypeScript Project Standards

Name: TypeScript Project Standards
Author: hivellm

byhivellm

•

Security & Testing

Enforces strict TypeScript configurations and automated quality checks to ensure production-grade code consistency.

This skill provides a comprehensive framework for developing high-quality TypeScript applications using modern best practices. It automates essential developer workflows, including strict type-checking, ESLint integration, and Vitest testing, while ensuring full alignment between local environments and CI/CD pipelines. By standardizing project structures and enforcing 95%+ test coverage thresholds, it helps developers prevent common runtime errors and maintain a robust, scalable codebase compatible with modern Node.js environments.

Key Features

01Automated quality check sequence including linting, formatting, and type-checking

02CI/CD-ready project structure with pre-configured GitHub Actions workflows

03Strict TypeScript 5.3+ configuration for maximum type safety

04Integrated testing framework setup with Vitest and 95% coverage requirements

05Standardized ES module resolution and package management best practices

065 GitHub stars

Use Cases

01Ensuring AI-generated code adheres to strict type safety and testing standards

02Bootstrapping a new production-grade Node.js or web project with TypeScript

03Auditing and standardizing existing TypeScript projects to meet industry best practices

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add hivellm/rulebook languages

For use in Claude.ai and ChatGPT

Download Skill