AI Regression Testing
Catch the blind spots when AI writes and reviews its own code: sandbox-mode API tests and bug-check workflows.
- What
- Catch the blind spots when AI writes and reviews its own code: sandbox-mode API tests and bug-check workflows.
- Cost
- Free
- Needs
- Use "AI Regression Testing" with your Muse.
- Install
- Copy the installer prompt below into your Muse — your agent does the rest.
Curated by Skill Harbor: testing patterns built for AI-assisted development, where the same model writes code and reviews it, carrying the same assumptions into both steps. The skill names the core failure pattern with a real production example: a fix passes the AI's own review four times while the bug survives, because sandbox and production code paths drift apart unnoticed. The answer is sandbox-mode API testing without database dependencies (with a Vitest plus Next.js App Router setup as the worked example), automated bug-check workflows to run after every AI change, and regression coverage aimed specifically at AI blind spots: the paths the model touched, the flags it toggled, the inconsistency between the mode it tested and the mode users hit. Activate it whenever an AI agent modifies API routes or backend logic, when a fixed bug must stay fixed, or when running a bug-check pass after code changes. By @affaan-m, listed here with credit to its creator. From the affaan-m/ECC repository (MIT). Honest caveats: the sandbox-testing approach works best on projects that already have a mock or sandbox mode; without one, you test against the real database or you build the seam first. Skill Harbor never reviews the code, review it yourself before use.
Version:
Install
Copy the install package below, then paste it into MuseCommunity-built. Skill Harbor doesn't audit code — review the source before installing.
Use "AI Regression Testing" with your Muse. Prerequisites: the Muse app (mobile or web), and a project where an AI agent writes or modifies code. Works best if the project has a sandbox or mock mode for DB-free testing. 1. Open the skill: https://github.com/affaan-m/ECC/blob/main/skills/ai-regression-testing/SKILL.md and copy the full SKILL.md text. 2. Paste it into a chat with Muse and add: "An AI agent just changed [these API routes / this backend logic]. Set up regression coverage for the AI blind spots: [describe the change]." 3. Ask Muse to identify the touched paths and flag toggles, write sandbox-mode API tests for them, and define a bug-check workflow to run after every future AI change. Tip: the number one AI-introduced regression is sandbox/production path inconsistency. Test both modes or explicitly decide which one you support. Safety: a skill is plain-text instructions; it runs nothing by itself. Review any test code before running it, never paste secrets into a chat, and review anything Muse proposes before it acts.
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Questions
How do I install a build?
Every product page includes a copy-paste install prompt. Paste it into your Muse and it sets the build up for you — no manual configuration.
Where does my money go?
Straight to the seller. Skill Harbor never processes payments: checkout happens on the seller’s own page, usually Stripe.
What does the ✓ next to a creator’s name mean?
It means we confirmed the identity of the person behind the listing. It says nothing about the code itself — always check a build before installing it.