A terminal running the Lessly CLI — lessly --help lists the auth, config, product, and operations commands

The Lessly CLI is live

Install and use the CLI

The Lessly CLI lets teams with private-beta access run platform operations from a terminal, an agent, or CI. Installation requires the Lessly package registry; the package is not on public npm.

Updated September 8, 2026 to reflect current capabilities. The publication date above is the original announcement date.

Configure the registry for the @lessly scope, then install @lessly/cli. Run lessly auth login and approve the request in your browser. An unattended job can use lessly auth login --token with a suitable token instead.

Terminal — lessly auth login, showing browser device-code login or a service token
The CLI sign-in screen shown in the original announcement. Interactive login uses a browser; unattended jobs supply a token.

The commands come from the platform's operation catalog. Authentication does not narrow your access by itself: check the credential and selected product before running a write. For an example of a shell-based agent session, read Run Lessly from an agent that uses the shell.

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Building Lessly in the open

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