Security & Testing Agent Skills for Claude Desktop

Trace codepaths in diffs, map against tests, auto-generate missing coverage — use before shipping PRs

Use when test coverage falls below target or a new module has no tests — identifies untested code paths and writes targeted unit or…

Improve test coverage in the OpenAI Agents Python repository: run `make coverage`, inspect coverage artifacts, identify low-coverage…

Hunting skill for misc vulnerabilities. Built from 225 public bug bounty reports. Use when hunting misc on any target.

Synthetic test data generation and management using Faker.js and similar tools.

Apply the family of test arrangement patterns — Test Data Builder (Nat Pryce & Steve Freeman, GOOS 2009), Object Mother (Peter Schuh…

Use when testing the Hubble Electron desktop app, especially when inspecting, clicking, screenshotting, or verifying a real note edit in…

Walk one test-driven development cycle (RED then GREEN, optionally Refactor while GREEN).

Designs, implements, and refines automated test suites across multiple frameworks with deterministic isolation and behavior-focused…

Investigates failing tests and routes the issue to the right developer using dependency and history context.

Add a small deterministic test fixture and a focused test to an existing repository, following its current test conventions and reporting…

Initialize test framework with Playwright or Cypress.

Verify a change by actually RUNNING the real thing and observing it work — launch the app, drive the real UI, hit the live endpoint, watch…

Generates test files, creates mocking strategies, analyzes code coverage, designs test architectures, and produces test plans and defect…

Skill for comprehensive mechanical test plan development and execution support

Test Planning and Quality Assurance prompt that generates comprehensive test strategies, task breakdowns, and quality validation plans for…

Test a playable browser game end to end with deterministic fixtures and real browser evidence.

Generate milestone test reports and build verification reports with pass rates.

The evidence standard for any QA work — visual, functional, regression, performance, accessibility, or mobile.

Invoke this skill when you need rules for writing tests.

Use when running tests, reporting failures, or diagnosing broken suites.