Build Kernel TS SDK

Build with the Kernel TypeScript SDK (@onkernel/sdk, generated from Kernel's OpenAPI spec by Stainless) and the React helper @onkernel/managed-auth-react. Kernel runs each browser as a unikernel-isolated VM and co-locates your code with the browser to remove CDP latency. The SDK and CLI surface the same API.

When to use this skill

Use this skill if the task involves any of:

• building or extending TypeScript code that imports @onkernel/sdk or constructs new Kernel(...)
• driving a Kernel browser via kernel.browsers.create, cdp_ws_url, kernel.browsers.playwright.execute, or kernel.browsers.computer.*
• deploying a Kernel App with kernel deploy and invoking it via kernel.invocations.create (sync or async with invocations.follow)
• wiring Playwright, Stagehand, Browser Use, Claude Agent SDK, Vibium, Notte, Magnitude, Laminar, or Val Town to a Kernel browser
• using profiles (profiles.*), browser pools (browserPools.*), credentials (credentials.*), or replays/file I/O (browsers.fs.*, browsers.replays.*)
• implementing Managed Auth with auth.connections.* and the React <KernelManagedAuth /> component
• scoping KERNEL_API_KEY per project via defaultHeaders: { 'X-Kernel-Project-Id': '…' }
• debugging Kernel-specific failures: browser.close() not cleaning up, sync-invocation 100 s timeout, default-context confusion, 409 profile conflicts

Do NOT use this skill for: