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ai-regression-testing

Run sandbox-mode API regression tests to detect regressions in AI-assisted code.

1|Updated Apr 7, 2026
Search Tags:#vitest#nextjs#api-testing#ci#ai-regression#sandbox-testing#bug-check
One-click install
npx skills add https://github.com/riftzen-bit/gemini-setup --skill ai-regression-testing-riftzen-bit
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: ai-regression-testing
Source: https://github.com/riftzen-bit/gemini-setup/tree/main/skills/ai-regression-testing
Command: npx skills add https://github.com/riftzen-bit/gemini-setup --skill ai-regression-testing-riftzen-bit

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Prevents regressions introduced when AI agents write and review code by providing patterns and fast sandbox-mode tests that catch repeated blind spots such as sandbox/production path mismatches, omitted SELECT clauses, and missing rollback behavior. The guidance helps ensure fixes do not reintroduce the same bug and that CI enforces mechanical checks before AI review.

Core Features & Use Cases

  • Sandbox-mode API testing guidance for DB-free tests and Vitest setup to run fast deterministic checks.
  • Regression test patterns including required-field assertions, sandbox/production parity checks, and explicit checks for SELECT clause omissions.
  • Bug-check workflow integration outlining a mandatory test-and-build step in CI followed by AI code review and regression test creation for every fix.
  • Use Case: After an AI-generated fix, run the sandbox tests for /api/user/profile to ensure notification_settings and other newly added fields are present in all paths.

Quick Start

Run sandbox-mode API regression tests for /api/user/profile and report any missing or undefined fields, then propose a regression test to prevent recurrence.

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 code regressions in Next.js API routes?▼

Run sandbox-mode API regression tests using Vitest to validate response shapes, sandbox/production parity, and SELECT clauses without database dependencies. This catches blind spots like missing fields and path mismatches after AI agents modify code.

How do I test Next.js API handlers without a database?▼

Sandbox-mode API testing enables fast, deterministic, DB-free tests for Next.js API handlers. You validate response shapes and state rollback behaviors directly, ensuring newly added fields like notification_settings are present in all paths.

When do I need sandbox-mode regression tests for AI-assisted code?▼

You need sandbox-mode regression tests when AI agents write or review code and propose fixes. Apply them to backend API routes and CI bug-check workflows to ensure fixes do not reintroduce the same bug, such as omitted SELECT clauses or missing rollback behavior.

Can I integrate AI regression tests into CI bug-check workflows?▼

Yes, you can enforce a mandatory test-and-build step in CI followed by AI code review. The workflow runs sandbox-mode API regression tests for every fix and proposes new regression tests to prevent recurrence of specific bugs.

What are common AI code regressions in backend API routes?▼

Common regressions include sandbox and production path mismatches, omitted SELECT clauses, missing rollback behavior, and absent required fields in API responses. Regression test patterns validate required-field assertions and parity checks to catch these issues.

How do I validate response shapes after an AI-generated fix?▼

Run sandbox-mode API regression tests on the modified endpoint to detect any missing or undefined fields. The tests apply required-field assertions and sandbox/production parity checks, then propose a regression test to prevent the issue from recurring.

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