Best Testing & Debugging Skills for Claude Code

Git History Archaeologist

by Edric Vale

$5

Excavate git history: blame forensics, reverted-change recovery, and commit narrative reconstruction.

Turn OpenAPI specs into exhaustive, framework-ready test suites covering happy paths, edge cases, and security gaps.

Flaky Test Detective for AI Coding Agents

by Shandra

$9.99/mo

Diagnoses unreliable tests, identifies root causes, creates stabilization plans, and generates safe AI coding prompts for fixing flaky unit, integration, E2E, and CI tests.

Diagnoses why your project will not start. Checks runtime versions, dependencies, environment variables, databases, ports, and build artifacts systematically.

A systematic 4-phase debugging framework to find root causes, eliminate flaky tests, and prevent regressions.

AI Agent Testing and Evaluation Bundle

by GTDataworks

$19

Five skills to compare agent runs, turn failures into regression tests, build eval datasets, gate provenance, and inspect untrusted content.

Bypass OS-native file upload dialogs in browser automation using JavaScript interception and DataTransfer injection.

A11Y Audit Runner

by Edric Vale

$5

Scored WCAG 2.2 accessibility audits with prioritized, copy-paste fix snippets for any webpage.

Systematic runtime bug detection and automated patching for Firebase, Next.js, and Vercel stacks.

agent skill regression tester

by Timoranjes

Free

You update your `code-review-checklist` SKILL.md to add a new check. It passes your manual test — "looks good.

Automated test generation with edge case analysis and framework-native syntax for TS, Python, Go, and Rust.

Windows Desktop Automation Architect for AI Coding Agents

by Shandra

$9.99

Designs robust Windows desktop automation workflows using pywinauto, UI Automation, hotkeys, image matching, OCR, retries, logging, screenshots, and safety controls.

TDD Loop Master

by StrategistKit

Free

Test-driven development (TDD) workflow - a strict red-green-refactor loop with a test list, forcing tests, minimal-code-to-pass guidance and an edge-case catalogue. Use when the user says help me stick to test-driven development, write tests first for this, what tests should I write, improve test coverage, or red green refactor this function.

Convert plain English into tested regex patterns and explain existing ones across multiple language flavors.

robot to playwright converter

by Matthew King

Free

Most 'migrations' rewrite your tests from scratch. This one maps your existing keywords and locators automatically.

Node Debug Inspector

by Edric Vale

Free

Attach to a Node.js process through the V8 inspector protocol and drive breakpoints, stack walks, and variable dumps with zero extra dependencies. Use when a No

Generate realistic JSON or CSV test data from plain-English schema descriptions with up to 1,000 rows.

A rigorous 5-phase debugging framework to systematically reproduce, isolate, and resolve complex software bugs.

Unit & Integration Test Generator

by PubsProToolkit

$14

Generate a real test suite for any function, module, or file — meaningful edge cases, error paths, boundary conditions, and proper mocks, not happy-path stubs. Detects your project's framework and conventions, plans the cases deliberately before writing, and hands back runnable tests plus a summary of what's covered. Built to write the tests that actually catch bugs.

Instantly diagnose and fix why your AI agent skills aren't triggering when they should.

rf seleniumlib to browser lib

by Matthew King

Free

SeleniumLibrary is the flakiest part of your Robot Framework suite. This skill swaps it for Browser library, structure intact

Select the smallest honest verification set for a change, including targeted tests, manual checks, missing-test recommendations, a broader fallback, and named remaining risk.

Developers waste time re-explaining their project to AI agents every session.

qikly

by Gal Arav

Free

Enforce spec-driven Python testing by withholding acceptance criteria from the coding agent to ensure tests can fail.