Test & debug

Find the real cause, prove the fix with evidence, and test in a real browser.

Sort12 skills

Test & debugMatt Pocock
Diagnosing bugs
Builds a fast failing feedback loop first, then narrows to the cause.
What it can touch: Edits code · Runs commands
669Kinstalls
npx skills@latest add mattpocock/skills --skill diagnosing-bugs
Test & debugJesse Vincent
Systematic debugging
Root cause before fixes, in four phases with clear stop signs.
What it can touch: Runs commands
273Kinstalls
npx skills@latest add obra/superpowers --skill systematic-debugging
Test & debugJesse Vincent
Verification before completion
No claim of done until the checks have run and the output has been read.
What it can touch: Runs commands
223Kinstalls
npx skills@latest add obra/superpowers --skill verification-before-completion
Test & debugAnthropic
Web app testing
Tests local web apps with Playwright scripts: screenshots, logs and UI checks.
What it can touch: Browser · Runs commands
165Kinstalls
npx skills@latest add anthropics/skills --skill webapp-testing
Test & debugAddy Osmani
Debugging and error recovery
A triage checklist: reproduce, localise, fix, then guard against the regression.
What it can touch: Runs commands · Uses git
42Kinstalls
npx skills@latest add addyosmani/agent-skills --skill debugging-and-error-recovery
Test & debugAddy Osmani
Browser testing with DevTools
Debugs in a real browser: DOM, console, network requests and performance traces.
What it can touch: Browser · Needs MCP
39Kinstalls
npx skills@latest add addyosmani/agent-skills --skill browser-testing-with-devtools
Test & debugOpenAI
Playwright
Drives real browser flows from the terminal with snapshot-based Playwright CLI commands.
What it can touch: Runs commands · Browser · Network
7.3Kinstalls
npx skills@latest add openai/skills --skill playwright
Test & debugJeff Smolinski
Debugging wizard
Reproduces, isolates, and proves a bug's root cause before fixing and preventing recurrence.
What it can touch: Edits code · Writes docs · Runs commands · Uses git
4.6Kinstalls
npx skills@latest add jeffallan/claude-skills --skill debugging-wizard
Test & debugTrail of Bits
Mutation testing
Configures mewt or muton campaigns and interprets surviving mutations as test gaps or equivalents.
What it can touch: Edits code · Runs commands
3.7Kinstalls
npx skills@latest add trailofbits/skills --skill mutation-testing
Test & debugTrail of Bits
Post-patch validation
Validates a security patch with pinned baseline, exploit, variant, behavior, and regression evidence.
What it can touch: Edits code · Writes docs · Runs commands · Uses git · Subagents
207installs
npx skills@latest add trailofbits/skills --skill post-patch-validation
Test & debugAffaan Mustafa
AI regression testing
Adds targeted regression tests for recurring blind spots in AI-assisted code changes.
What it can touch: Edits code · Runs commands
—not counted yet
npx skills@latest add affaan-m/everything-claude-code --skill ai-regression-testing
Test & debugAffaan Mustafa
End-to-end testing
Structures Playwright end-to-end suites with page objects, CI artifacts, and flake controls.
What it can touch: Edits code · Runs commands · Browser
—not counted yet
npx skills@latest add affaan-m/everything-claude-code --skill e2e-testing