unit-regression-test-agent

What problem does it solve?

This Skill automates the generation and ongoing maintenance of unit tests to ensure code changes stay covered and regressions are caught early.

Core Features & Use Cases

• Automated test design for changed files, generating representative unit tests for functions, methods, and classes.
• Deterministic test generation with Bun, including structured test names and mock injection.
• Self-adjusting tests that drift with implementation changes, reducing manual test maintenance.

Quick Start

Trigger a test-generation cycle for a changed file, for example:

• Provide: src/utils/parser.ts
• Result: generates src/utils/parser.test.ts with deterministic Bun-based tests
• Validate: run bun test to verify and iterate