How tasks run

Which tool runs the task

Manifest	Command
deno.json, deno.jsonc	deno task <name>
package.json	<package manager> run <name>

The package manager comes from the packageManager field if present ("pnpm@9.1.0" gives pnpm). Otherwise pkgr looks at the lockfile beside the manifest: pnpm-lock.yaml, yarn.lock, bun.lock or bun.lockb, package-lock.json. It falls back to npm.

Behaviour worth knowing

• The task runs in the foreground, inheriting stdin, stdout and stderr, so colour, progress bars and interactive prompts all work.
• pkgr exits with the task’s own exit code.
• Ctrl+C goes to the task, not to pkgr, so the task shuts down cleanly.
• Tasks are listed in the order they appear in the file, not alphabetically.
• Comments and trailing commas are tolerated in any manifest.
• Cancelling at the picker exits with code 130 and runs nothing.