What is the recommended minimum coverage threshold for this skill?

This skill establishes 80% as the minimum threshold floor for lines, functions, branches, and statements, prioritizing critical business logic over vanity metrics.

Can I exclude certain files like generated code from reports?

Yes, the skill includes standardized exclusion patterns for node_modules, distribution folders, global types, and automatically generated files to prevent metric inflation.

Does this skill encourage 100% test coverage?

No, it explicitly advises against chasing 100% coverage as a goal, instead focusing on covering critical paths, error handling, and meaningful behavioral assertions.

Does this skill work with Vitest and v8?

Yes, it provides specific configuration patterns for Vitest using the v8 provider, including setup for various reporters like HTML and LCOV.

How does it help with GitHub Actions integration?

It provides ready-to-use YAML snippets for running tests with coverage in CI and uploading the results to services like Codecov.

JS Test Coverage Standards

Name: JS Test Coverage Standards
Author: IvanTorresEdge

byIvanTorresEdge

0•

Security & Testing

Establishes and enforces test coverage thresholds and reporting best practices for JavaScript and TypeScript projects.

The JS Test Coverage Standards skill provides Claude with a comprehensive framework for managing test metrics using tools like Vitest and the V8 provider. It shifts the focus from vanity metrics to meaningful quality by emphasizing critical path testing and behavioral verification over simple line counts. By using this skill, developers can quickly configure CI/CD coverage gates, identify frequently missed edge cases in error handling, and implement standardized reporting across their repositories to ensure a consistent baseline of code reliability.

Key Features

01Pre-configured Vitest thresholds for lines, functions, branches, and statements

020 GitHub stars

03Detailed analysis guides for identifying and covering common error-handling gaps

04Anti-pattern detection to prevent testing implementation details over behavior

05Multi-format reporting setup including HTML, LCOV, and CI-compatible outputs

06Standardized exclusion patterns for generated code and type definitions

Use Cases

01Setting up automated coverage gates in GitHub Actions to prevent quality regressions

02Configuring standardized test reporting for large-scale TypeScript monorepos

03Analyzing HTML coverage reports to pinpoint and fix untested business logic

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add ivantorresedge/molcajete.ai coverage-standards

For use in Claude.ai and ChatGPT

Download Skill