Testing & Quality skills

Browse reusable Agent Skills, each with a clear purpose and practical guidance.

vscode-visual-regression

Write Storybook stories and visual regression tests for the Kilo VS Code extension webview UI

26.25k repo starsObserved in 6 repos
Testing & Quality

pr-explainer

Use when creating an approachable, self-contained HTML review aid for a pull request; explaining what changed, why it matters, how it works, and how it fits into the broader system; turning PR diffs, commits, tests, and architecture context into a local `.pr-review/` HTML page for reviewers; or helping reviewers understand complex code changes without dumping the full diff.

26.19k repo starsObserved in 1 repos
Testing & Quality

bugfix

Fix a bug from a GitHub issue, following the reproduce-first workflow. Use when the user asks to fix a bug, investigate a GitHub issue, or debug a user-reported problem. Takes a GitHub issue URL or number as input.

26.04k repo starsObserved in 2 repos
Testing & Quality

testing-api-for-mass-assignment-vulnerability

Tests APIs for mass assignment (auto-binding) vulnerabilities where clients can modify object properties they should not have access to by including additional parameters in API requests. The tester identifies writable endpoints, adds undocumented fields to request bodies (role, isAdmin, price, balance), and checks if the server binds these to the data model without filtering. Part of OWASP API3:2023 Broken Object Property Level Authorization. Activates for requests involving mass assignment testing, parameter binding abuse, auto-binding vulnerability, or API over-posting.

25.64k repo starsObserved in 1 repos
Testing & Quality

prettier-compare

Compares code formatting and formatting IR between Biome and Prettier to ensure that Biome's formatting is consistent and correct. Use when validating formatter changes, debugging formatting differences, or comparing output for JavaScript, TypeScript, CSS, or other languages.

25.42k repo starsObserved in 1 repos
Testing & Quality

testing-codegen

Guide for testing workflows and code generation commands in Biome. Use when running snapshot tests for lint rules, managing insta snapshots, or regenerating analyzer/parser/formatter code after changes.

25.42k repo starsObserved in 1 repos
Testing & Quality

minimize-reproducer

Use this when you need to minimize a complex or bloated JavaScript test case (e.g., from a fuzzer or external report) into a minimal, readable reproduction for debugging V8 issues.

25.12k repo starsObserved in 1 repos
Testing & Quality

v8-regression-testing

Use this skill when designing, writing, or minimizing regression tests (e.g., mjsunit) for V8 bug fixes

25.12k repo starsObserved in 1 repos
Testing & Quality

v8-security-triaging

Guides the initial analysis and impact assessment of a V8 security report, strictly excluding implementation or fixing.

25.12k repo starsObserved in 1 repos
Testing & Quality

v8-testing

Executes and interprets V8 tests. Use when running unittests, cctest, or mjsunit, or when debugging test failures. Do not use for building.

25.12k repo starsObserved in 1 repos
Testing & Quality