kernel

Systematically debug a Kernel cloud browser session — VM issues, network errors, Chrome crashes, page-load failures, and live-view problems. Use when a browser session misbehaves (e.g. ERR_HTTP2_PROTOCOL_ERROR, "browser not responding", blank/error pages, captcha or "checking your browser" blocks, live view not loading) and you have the session ID. Drives the Kernel CLI to inspect session status, screenshots, page state, VM logs, and network connectivity.

Generate crisp, perfectly smooth MP4 videos from a web page or animated visualization by driving headless Chromium over the Chrome DevTools Protocol (CDP) with deterministic frame-stepping, then encoding with ffmpeg and (if remote) sharing via a cloudflared tunnel. Use when asked to make/generate a demo video, explainer clip, launch/marketing animation, social teaser, or any short rendered video from a web scene — especially animated stat/timeline/diagram visualizations — and when you need to iterate on it (tweak, re-render, compare). Solves the common "the recording has hitches / judder / dropped frames" problem.

Best practices for using browser-use's open-source browser-harness with Kernel cloud browsers over CDP. Use when driving a Kernel browser from browser-harness, extracting a CDP URL from `kernel browsers create`, or running multi-step or parallel harness sessions against Kernel.

Complete guide to Kernel CLI - cloud browser platform with automation, deployment, and management

Compare two Kernel profile archives to investigate behavioral differences. Use when an issue (e.g. login failure, captcha, broken automation, vendor mismatch) reproduces on one profile but not another, or when a "good" vs "bad" profile needs to be diffed. Takes two profile IDs/names plus an issue description, downloads both archives via the Kernel CLI, and surfaces differences in cookies, storage, preferences, extensions, and login state that could explain the issue.

Profile a website for bot detection vendors using stealth vs non-stealth Kernel browsers. Use when analyzing bot detection on a website, comparing stealth effectiveness, identifying anti-bot vendors and products, or detecting challenge types.

Setup and manage Kernel authentication connections for any website (Gmail, GitHub, Outlook, or custom domains). Handles managed auth flows with automatic reauthentication support.

Build browser automation scripts using the Kernel Python SDK with Playwright and remote browser management.

browse websites, open a browser, automate a website, navigate to a URL, click buttons, fill forms, and scrape pages using kernel cloud browsers with playwright and CDP.

manage cloud browsers, take screenshots, run playwright scripts, and manage browser profiles using kernel's MCP tools. use when the kernel MCP server is connected.

build browser automation scripts using the kernel python sdk with playwright and remote browser management. use when writing python code that creates browsers, runs playwright, or automates websites with kernel.

build browser automation scripts using the kernel typescript sdk with playwright, CDP, and remote browser management. use when writing typescript code that creates browsers, runs playwright, or automates websites with kernel.

manage authentication for AI agents — log in and stay logged in across websites. use when setting up login credentials, authentication flows, or persistent authenticated sessions with kernel.

scrape websites, extract data, crawl pages, and browse the web at scale using kernel cloud browsers with stealth mode and proxies.

Improve repository test quality by eliminating flakes first, then reducing slow-test redundancy, and finally optimizing longest tests while preserving coverage. Use when asked to repeatedly run CI-equivalent no-cache test cycles, diagnose flaky tests, and document findings in this skill's notes.

Run Hypeman tests on a remote Linux host that supports the Linux hypervisors. Use when validating cloud-hypervisor, Firecracker, QEMU, embedded guest artifacts, or Linux-only integration behavior on a server over SSH.

Use when optimizing VM Initializing-to-Running latency while preserving functionality and low implementation complexity.

Add or adjust monitoring for a Hypeman feature using repository standards for logs, traces, and metrics. Use when a user asks for instrumentation, observability reviews, telemetry consistency changes, metric design, or production-signal improvements.

Automate LinkedIn tasks using agent-browser connected to the local Chrome browser via CDP.