tb auth --interactive broken on legacy CLI; docs still reference outdated flow

[utsav-develops]

The current "local development" section of documentation installs the Tinybird CLI via the old method (as referenced in this repo). However, that version is legacy/outdated and tb auth --interactive no longer works.

The updated CLI requires installation via:

curl https://tinybird.co | sh
tb login

This creates a mismatch between the documented install steps and the actual working authentication flow.

Steps to Reproduce

1. Install CLI using the method described in this repo/docs

2. Run:

   tb auth --interactive

3. Observe that it asks for a region and token, but the token does not work

Expected Behavior

Interactive authentication should work as documented, or the docs should reflect the new supported flow.

Actual Behavior

tb auth --interactive asks for token which doesn't work.

Suggested Fix

• Update documentation to use:

  curl https://tinybird.co | sh
  tb login

• Remove or clearly mark legacy commands (tb auth --interactive) as deprecated

Environment

• OS: macOS 26.3.1 (a) (Tahoe)
• Architecture: arm64
• Installation method: repo/docs method

[linear]

ENG-1697

[devnucleus950]

Hi, I’d like to work on this issue.

I’ll update the documentation to reflect the new Tinybird CLI installation and authentication flow, and clarify the deprecation of the older method.

Please let me know if that sounds good.