Step 2 — write the behavior before the code

The first artifact is not Rust — it is a Cucumber feature describing the whole arc in plain language, runnable as a test: a founder intakes, an attorney reviews, signatures land, and the state stamps a filing.

From features/tests/features/nest_formation.feature:

  Scenario: From intake to a stamped Secretary-of-State filing
    When the firm opens the "nv__llc_formation" matter for the client
    And the founder answers the formation questionnaire:
      | value                  |
      | Libra                  |
      | Bright Star Ventures   |
      | Neon Law Registered Agent |
      | members                |
      | Libra; 1 Main St; Las Vegas; NV; 89101; USA |
      | 2026-07-01             |
    And the attorney approves and sends the document
    Then the formation reaches the signature wait
    And the persisted packet is the official SoS form carrying the founder's answers
    And the generated packet is filed as a document in the matter
    When the attorney files the Articles with the Nevada Secretary of State
    Then the formation workflow reaches END
    And a filing was recorded with the "Nevada Secretary of State"
    And the founder's six onboarding answers are on file