Complete browser automation with Playwright. Auto-detects dev servers, writes clean test scripts to /tmp.
Playwright Test Recorder is built around Playwright browser automation framework. The underlying ecosystem is represented by microsoft/playwright (84,874+ GitHub stars).
Parses Playwright HTML and JSON test reports and posts structured summaries to Slack using the Slack Web API.
Automatically activated when user works with Playwright tests, mentions Playwright configuration, asks about selectors/locators/page objects, or has files matching *.spec.ts in…
Playwright E2E testing for the Arcanea web app. Use when writing, running, or debugging Playwright tests, automating browser interactions on the Arcanea platform, capturing…
Automated visual regression testing using Playwright's screenshot comparison API (page.screenshot with maxDiffPixelRatio) and toMatchSnapshot assertions.
Automates visual regression testing using the Playwright screenshot comparison API and pixelmatch diffing library.
Browser automation via remote Playwright WebSocket server for screenshots, PDFs and testing.
Complete reference for creating Claude Code plugins from scratch. Covers directory structure, plugin.json manifest, SKILL.md format, agents, hooks, MCP servers, commands, rules,…
Builds, deploys, and tests the typemux-cc Claude Code plugin locally. Handles the full cycle from cargo build through cache clearing, marketplace registration, plugin install, and…
Use when a task needs licensed plumber/pipefitter/steamfitter judgment — sizing DWV or water-supply pipe by fixture-unit tables, selecting a backflow-prevention device by…
Marc Andreessen (co-founder & general partner, Andreessen Horowitz / a16z; co-creator of Netscape) — "software is eating the world", founder-as-engine-of-progress, strong-…
QA Lead Specialist — composes pmo-qa-auditor + build-reviewer into program-level QA leadership. Owns the system-level test strategy, binds acceptance scope to delivery readiness,…
Smoke test for the pmo-skill-refiner factory — produced via the refiner's Create-New workflow during an AC demonstration.
BDD-driven feature/fix discovery before any implementation. Use when planning a feature, designing a fix, or exploring options before building.
Converts a pocket-grinding spec into a TDD-structured execution plan of full Pocket Packets. Use when pocket-grinding handoff arrives (spec path + acceptance criteria).
Three-layer verification for ported code - differential testing, adversarial hardening, and standard verify
End-to-end test the polly multi-agent coding orchestrator's critical user journeys (CUJs). Two halves — a deterministic mock-LLM driver (polly_cuj.py) that boots a throwaway local…
Generates comprehensive, workable unit tests for any programming language using a multi-agent pipeline.
Use when starting work on an unfamiliar project or needing to understand a codebase - performs comprehensive analysis discovering architecture, patterns, dependencies, te — from…
Use when starting work on an unfamiliar project or needing to understand a codebase - performs comprehensive analysis discovering architecture, patterns, dependencies, te — from…
E2B Sandbox Manager - Provides safe, isolated environments for code execution and testing. Essential for multi-agent swarms to avoid local file conflicts.
Auto-sync GitHub repos to portfolio website. Scans GitHub repos, captures screenshots with Playwright, generates project entries, and updates projects-data.js or Supabase DB.
E2E testing skill for Pawel Lipowczan portfolio project (Playwright + React/Vite). Use when user wants to create new E2E tests, debug flaky tests, extend test coverage, verify…
Create a minimal working PostHog example with event capture, identify, and feature flags. Use when starting a new PostHog integration, testing your setup, or learning basic…
Configure PostHog local development with mocking, debug mode, and testing. Use when setting up a development environment, mocking PostHog for tests, or establishing a fast…
API testing skill using Postman and Newman, covering collections, environments, pre-request scripts, test scripts, and CI/CD integration with Newman.
API testing and automation with Postman/Newman: collections, environments, pre/post scripts, CI/CD reporting, and data-driven testing.
Use when DAX measures need test cases, expected totals, edge cases, time-intelligence validation, RLS context checks, or reconciliation against source totals.
Use when a task needs the judgment of a powerhouse/substation electrician — planning and independently verifying a switching order to de-energize substation equipment…
Write a PR description grounded in the REAL diff — read the branch's actual changes via the GitHub connector, not a template the user fills in.
Use when writing PR descriptions. Enforces 6 sections in order: Background, Goals, Tenets, High-level description, Testing, Low-level details.
Reads your branch diff and writes a PR description in your mentor's house format (Summary / What changed / Why / Testing / Risk / Reviewer focus).
Validate that the AIOS repo ships every tool needed to run its full lifecycle (install, create brain, create a second AIOS, switch, delete) on each major platform, then emit a…
Testes E2E deste repo com Playwright + Electron (_electron.launch), fixtures PT_E2E_* e convenções da pasta e2e/. Usar ao criar ou alterar *.spec.ts.
Assess and improve garden soil through testing, amendment, composting, and biodynamic preparations. Covers jar test, spade test, earthworm count, amendment by soil type (clay,…
Use to validate a feature against real users — build a persona dossier and walk that specific person through the journey to find where it breaks for THEM.
Work on Previa, the AI-first QA IDE and API testing runtime. Use when creating or debugging Previa pipelines, runners, MCP integration, CLI flows, repository changes,…
Comprehensive E2E + Security Tests for Vercel Preview Deployments. Combines Playwright automation with Claude-in-Chrome MCP for interactive debugging.
Test-Driven Development (TDD) — red-green-refactor, test-first, spec first, Arrange-Act-Assert, F.I.R.S.T. principles; writing tests before code; making tests fast and isolated.
Testing strategy and architecture — test pyramid (unit / integration / e2e), test doubles taxonomy (stub / mock / spy / fake), coverage-vs-confidence, mutation testing, flaky-test…
Use when preparing, structuring, or pressure-testing a negotiation with principled negotiation / BATNA: separate people from the problem, focus on interests rather than positions,…
Reference skill for Zoom Probe SDK. Use after routing to a preflight workflow when testing browser compatibility, media permissions, audio or video diagnostics, and network…
Debug a live system without making the incident worse by staying read-only first, gating changes behind flags, and testing on mirrored traffic.
Go conventions, idiomatic patterns, concurrency, standard library, and testing best practices. Auto-activates in Go projects.
Python conventions, type hints, modern tooling (uv, ruff, mypy, pytest), and best practices. Auto-activates in Python projects.
Ruby conventions, Rails patterns, RSpec testing, RuboCop linting, and idiomatic Ruby best practices. Auto-activates in Ruby projects.
Swift 6 conventions, concurrency, SPM, macros, testing, and idiomatic patterns. Auto-activates in Swift package projects.
Custom test patterns and fixtures for {project}. Covers E2E, integration, and specialized testing requirements. — from engineering/testing
Custom test patterns and fixtures for {project}. Covers E2E, integration, and specialized testing requirements. — from bg-szy/TOP-SKILLS
Prompt engineering knowledge base — technique taxonomy with decision tree, prompt template patterns and formatting conventions, OWASP LLM Top 10 security checklist, eval…
Optimize prompts for code-related tasks following Claude best practices. Use when refining prompts for implementation, debugging, refactoring, code review, or testing.
Configures and runs LLM evaluation using Promptfoo framework. Use when setting up prompt testing, creating evaluation configs (promptfooconfig.yaml), writing Python custom…
Audit test suite health — find flaky tests, slow tests, coverage gaps, and testing anti-patterns. Use when asked to "audit tests", "fix flaky tests", "why are tests slow", "test…
Proof-driven development - design proofs from requirements, then execute CREATE -> VERIFY -> REMEDIATE cycle.
Build E2E test specs for critical user journeys — Playwright or Cypress, page objects, setup/teardown, CI config.
Testing reconnaissance — inventory all tests, frameworks, coverage, CI integration, and assess testing maturity for project takeover.
Produce a test strategy for a project or feature — risk map, test type decisions, coverage targets, CI config.
Test software in the style of John Hughes, inventor of QuickCheck and property-based testing. Emphasizes specifying properties that should hold for all inputs, generating random…
Property Based Test Helper - Auto-activating skill for Test Automation. Triggers on: property based test helper, property based test helper Part of the Test Automation skill…