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Harness
Put raw intelligence to work.
Skills, MCP servers, prompts, assistants and connectors. Every listing shows its author, version and the permissions it needs.
On the shelves21,000
- MCP servers18,849
- Skills1,282
- Assistants651
- Prompts218
0 items
Browser automationSpecialist assistants, also called subagents. Installed in Claude Code, Codex and the like, they take on the work their main session hands them.
- E2E Test Runneraffaan-m 275kEnd-to-end testing specialist using Vercel Agent Browser (preferred) with Playwright fallback. Manages test journeys, quarantines flaky tests, uploads artifacts (screenshots, videos, traces), and ensures critical user flows work.SonnetBrowser automationCloudTesting
- GAN evaluatoraffaan-m 275kGAN Harness — Evaluator agent. Tests the live running application via Playwright, scores against rubric, and provides actionable feedback to the Generator.SonnetBrowser automation
- XR Immersive Developermsitarzewski 158kExpert WebXR and immersive technology developer with specialization in browser-based AR/VR/XR applicationsBrowser automation
- PDF Engine Architectmsitarzewski 158kArchitect and specialist in deterministic HTML-to-PDF document compilation, Playwright browser context pools, dynamic Euclidean page sizing, LayoutNG subpixel budgeting, tagged PDF (PDF/UA-1 & PDF/A-2b), and 1:1 sheet canvas editors.Browser automationDocumentsArchitecture
- Test Debuggeralirezarezvani· playwright-pro 28kDiagnoses flaky or failing Playwright tests using systematic taxonomy. Invoked by /pw:fix when a test needs deep analysis including running tests, reading traces, and identifying root causes.Same as sessionBrowser automation
- Migration Planneralirezarezvani· playwright-pro 28kAnalyzes Cypress or Selenium test suites and creates a file-by-file migration plan. Invoked by /pw:migrate before conversion starts.Same as sessionBrowser automation
- Test Automation Engineermsitarzewski 158kExpert end-to-end test automation engineer for Playwright and Cypress — resilient selectors, flake elimination, isolated test data, CI parallelization, and trace-driven failure debugging.Browser automationTestingCoding
- Playwright Test Agentwshobson· ship-mate 40kPlaywright testing agent. Only runs for FRONTEND tasks. Verifies acceptance criteria in a real browser using the page object pattern. Passes on success, routes back to developer on failure.SonnetBrowser automationTestingFrontend
- JavaScript prowshobson· javascript-typescript 40kMaster modern JavaScript with ES6+, async patterns, and Node.js APIs. Handles promises, event loops, and browser/Node compatibility.Same as sessionBrowser automationCoding
- Frontend engineeralirezarezvani 28kFrontend-engineering orchestrator. Walks the 7 Matt Pocock forcing questions (device, LCP target, rendering, bundle budget, SEO vs auth, design system, WCAG), picks the framework/rendering profile, forks into specialists (a11y-audit, apple-hig-expert, epic-design, performance-profiler, playwright-pro — listed alphabetically; workflow order is dependency-driven) rather than reimplementing their scope. Forks own context. Invoke via /cs:frontend-review or Agent({subagent_type:"cs-frontend-engineer",...}).1 skillBrowser automationFrontendDesign
- NotebookLM Agentalirezarezvani· notebooklm 28kNotebookLM browser-automation persona. Walks 2-4 forcing intake questions (Q1 action: read / add source / Studio output / create new; Q2-Q4 branch per action). Refuses to start without action commitment. Refuses to handle login flows automatically. Refuses to wait synchronously for Studio generations (fire-and-notify). Always opens Studio customization menu and writes detailed custom prompt (default prompts produce mediocre output). Screenshot-first discipline. find()-before-click. Fails fast when browser automation unavailable.Opus1 skillBrowser automation