What types of tests can this skill generate?

It is capable of generating unit tests for specific functions, integration tests for API endpoints, and end-to-end (E2E) tests for critical user flows.

Does it support languages other than English?

While the internal reasoning is performed in English, all user-facing outputs, reports, and summaries are strictly provided in Japanese.

How does this skill determine where tests are missing?

The skill analyzes the coverage/coverage-summary.json file after running your test scripts to identify any files that fall below the 80% coverage threshold.

Will it break my build if tests fail?

The skill includes a verification step that runs the newly generated tests to ensure they pass before finalizing the coverage report.

Test Coverage Booster

Name: Test Coverage Booster
Author: YuriNakayama

byYuriNakayama

0•

Security & Testing

Analyzes project test coverage and automatically generates missing unit, integration, and E2E tests to reach an 80% coverage threshold.

The Test Coverage Booster skill helps developers maintain high-quality codebases by identifying gaps in test suites and filling them automatically. It executes backend and frontend test scripts, parses coverage reports, and targets files falling below the 80% coverage threshold. By generating comprehensive test cases for happy paths, error handling, and edge cases, it ensures project stability and robustness. Designed for international teams, it performs internal reasoning in English while providing all final reports and summaries in Japanese.

Key Features

01Japanese language support for all user-facing output and summaries

02Automated coverage gap analysis via coverage-summary.json

030 GitHub stars

04Multi-level test generation including Unit, Integration, and E2E tests

05Automated verification to ensure all newly generated tests pass

06Comprehensive coverage reporting with before and after metrics

Use Cases

01Standardizing test reporting in Japanese for local development teams

02Boosting code coverage for legacy projects or rapidly developed features

03Identifying and testing overlooked edge cases and error handling paths

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add yurinakayama/research test-coverage

For use in Claude.ai and ChatGPT

Key Features

01Japanese language support for all user-facing output and summaries

02Automated coverage gap analysis via coverage-summary.json

030 GitHub stars

04Multi-level test generation including Unit, Integration, and E2E tests

05Automated verification to ensure all newly generated tests pass

06Comprehensive coverage reporting with before and after metrics

Use Cases

01Standardizing test reporting in Japanese for local development teams

02Boosting code coverage for legacy projects or rapidly developed features

03Identifying and testing overlooked edge cases and error handling paths

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add yurinakayama/research test-coverage

For use in Claude.ai and ChatGPT