svelte-check-daemon

Instant svelte-check typechecking and diagnostics in SvelteKit projects, by using a daemon that monitors svelte-check --watch and returns the latest results when you run svelte-check-daemon check.

Usage

Add @ampcode/svelte-check-daemon as a dependency to your project:

npm install --save-dev @ampcode/svelte-check-daemon
# -or-
pnpm add -D @ampcode/svelte-check-daemon

Then update your package.json scripts to run svelte-check-daemon start alongside your dev server and svelte-check-daemon check to get results:

{
    "scripts": {
        "dev": "concurrently \"svelte-check-daemon start --tsconfig tsconfig.json\" \"vite dev\"",
        "check": "svelte-check-daemon check"
    }
}

This uses concurrently to run both processes and ensure the daemon is properly terminated when you stop the dev server.

If the daemon isn't running, svelte-check-daemon check will just run svelte-check, which is a fallback in CI or if you've forgotten to run the daemon.

Commands

Command	Description
svelte-check-daemon start	Start the daemon (runs svelte-check --watch in background)
svelte-check-daemon check	Get the latest results from the daemon
svelte-check-daemon stop	Stop the running daemon
svelte-check-daemon status	Show daemon status

Options

Option	Description
--workspace <path>	Path to workspace (default: current directory)
--tsconfig <path>	Path to tsconfig.json
--help	Show help message