AI Regression Testing

by affaan-m

AI Regression Testing is a Quality skill for Claude Code, published by affaan-m in ECC.

239.8K stars36.4K forkson affaan-m/ECCAdded 2026/08/13Repository updated 2026/08/12

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ai-agentsanthropicclaudeclaude-codedeveloper-toolsllmmcpproductivity

Install in seconds

Install AI Regression Testing

Copy AI Regression Testing into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/affaan-m/ECC/tree/main/skills/ai-regression-testing ~/.claude/skills/ai-regression-testing

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/affaan-m/ECC.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/ai-regression-testing/SKILL.md in affaan-m/ECC
Installs to: ~/.claude/skills/ai-regression-testing
Collection: One of 25 skills cataloged from this repository
Category: Quality — 1354 skills

What AI Regression Testing does

AI Regression Testing provides testing patterns for AI-assisted development, catching blind spots when the same model writes and reviews code. Use it for sandbox-mode API tests and regression coverage after AI code changes.

AI Regression Testing is cataloged under Quality on DirSkills. AI Regression Testing comes from a repository tagged ai-agents, anthropic, claude, claude-code and developer-tools.

Documentation

README

Excerpt

AI Regression Testing

Testing patterns specifically designed for AI-assisted development, where the same model writes code and reviews it — creating systematic blind spots that only automated tests can catch.

When to Activate

AI agent (Claude Code, Cursor, Codex) has modified API routes or backend logic
A bug was found and fixed — need to prevent re-introduction
Project has a sandbox/mock mode that can be leveraged for DB-free testing
Running /bug-check or similar review commands after code changes
Multiple code paths exist (sandbox vs production, feature flags, etc.)

This is the opening of the README. Read the full README on GitHub.

Commands AI Regression Testing provides

Slash commands named in this skill’s SKILL.md, listed in the order they first appear.

/bug-check

Frequently asked about AI Regression Testing

What else does affaan-m publish alongside AI Regression Testing?
AI Regression Testing is one of 25 skills that DirSkills catalogs from affaan-m/ECC, the repository it ships in. Its siblings there include AI-First Engineering, API Connector Builder and API Design Patterns. Each one is a separate skill with its own page in this directory, installs the same way AI Regression Testing does, and is maintained by affaan-m in that same repository. The rest of the collection is listed on the affaan-m/ECC page.
How does AI Regression Testing compare to other Quality skills?
AI Regression Testing ranks #5 by stars among the 1354 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of AI Regression Testing against them. Open each page to compare what they document and how they install.