ai-regression-testing

Automate sandbox-mode API tests with Vitest to detect AI-induced regressions.

3|2|Updated Mar 8, 2026
One-click install
npx skills add https://github.com/agentmatters/mullai-bot --skill ai-regression-testing-agentmatters
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: ai-regression-testing
Source: https://github.com/agentmatters/mullai-bot/tree/main/src/Mullai.Skills/Skills/claude-code-everything/ai-regression-testing
Command: npx skills add https://github.com/agentmatters/mullai-bot --skill ai-regression-testing-agentmatters

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

AI regression testing mitigates the risk that AI-assisted development introduces regressions by failing to catch when code paths or API contracts regress after model-driven changes.

Core Features & Use Cases

  • Sandbox-mode API testing to run in isolation without external dependencies.
  • Automated bug-check workflows that enforce regression coverage and guardrails.
  • Templates and guidance for creating regression tests when AI reviews introduce changes.
  • Real-world scenarios include API route changes, schema evolutions, and multi-path (sandbox vs production) parity checks.

Quick Start

Run the Vitest-based test suite in sandbox mode to validate AI-driven API changes without a real database.

Frequently Asked Questions about ai-regression-testing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I prevent AI-induced regressions in API routes?▼

Automated regression testing prevents AI-induced regressions by enforcing bug-check workflows and sandbox-mode API tests. This validates AI-driven API changes in isolation before they reach production.

How do I run Vitest test suites in sandbox mode for Next.js API changes?▼

You can run Vitest test suites in sandbox mode to validate Next.js API changes by applying regression-test templates. This allows testing AI-modified backend logic without external dependencies.

What is sandbox parity and why does it matter for regression testing?▼

Sandbox parity ensures that sandbox environments accurately mirror production behavior for regression testing. It matters because it allows automated bug-check workflows to catch AI-induced API contract regressions safely.

Does this automated regression testing work without a real database?▼

Yes, automated regression testing works without a real database by utilizing sandbox-mode API testing. This isolates AI-assisted development changes to verify schema evolutions and backend logic independently.

When do I need automated regression tests for AI-assisted development?▼

You need automated regression tests for AI-assisted development when modifying API routes, authentication, or backend logic. It prevents model-driven changes from silently breaking existing API contracts.