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ai-regression-testing

Automate sandbox-mode API regression testing for Next.js routes without database dependencies.

2|Updated Mar 20, 2026
Search Tags:#workflow#vitest#testing#ai#regression#api-testing#sandbox
One-click install
npx skills add https://github.com/multiplex-ai/muggle-ai-teams --skill ai-regression-testing-multiplex-ai
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: ai-regression-testing
Source: https://github.com/multiplex-ai/muggle-ai-teams/tree/main/skills/ai-regression-testing
Command: npx skills add https://github.com/multiplex-ai/muggle-ai-teams --skill ai-regression-testing-multiplex-ai

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Regression testing strategies for AI-assisted development, including sandbox-mode API testing without database dependencies, automated bug-check workflows, and patterns to catch AI blind spots that occur when the same model writes and reviews code.

Core Features & Use Cases

  • Sandbox-mode API testing to run tests without requiring a database, enabling fast, isolated checks.
  • Automated bug-check workflow that combines tests, builds, and AI-assisted reviews to prevent regressions.
  • Regression-pattern catalog and guided tests to detect sandbox/production parity issues and common SQL/select issues.
  • Real-world example: use the regression tests to guard API contracts after changes to routing or data models.

Quick Start

Run the regression test suite after every change to catch AI-regression bugs before merging.

Frequently Asked Questions about ai-regression-testing

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

FAQPage Schema
How do I catch regression bugs when an AI agent modifies Next.js API routes?▼

To catch regression bugs in Next.js API routes, run an automated regression test suite using Vitest to enforce sandbox-prod parity and validate API contracts after AI-assisted code changes.

Can I run API regression tests in sandbox mode without a database?▼

Yes, you can run API regression tests in sandbox mode without database dependencies, enabling fast and isolated checks to verify API behavior before deploying to production.

Why does the same AI model writing and reviewing code cause regression blind spots?▼

AI regression blind spots occur when the same model writes and reviews code, missing common SQL or select issues, which a guided bug-check workflow and regression-pattern catalog can detect.

Do I need Vitest to automate bug-check workflows for AI-assisted development?▼

Yes, this regression testing workflow requires a Vitest-based test suite to automate bug-checks, run builds, and trigger AI-assisted reviews that prevent regressions in sandbox and production environments.

What is the best way to test sandbox and production behavior parity for API changes?▼

The best way to test sandbox and production parity is applying a defined bug-check workflow with regression-pattern catalog tests that detect behavioral mismatches after routing or data model changes.

When should I run regression tests to guard API contracts after AI code changes?▼

You should run the regression test suite after every AI-assisted change to catch AI-regression bugs before merging, ensuring sandbox and production environments remain in sync.

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