monthlytracker/openspec/changes/monthly-expense-tracker-v1/specs/expense-tracking/spec.md

ADDED Requirements

Requirement: User can record categorized expenses

The system SHALL allow the user to create an expense with a title, amount, category, and local calendar date using fixed starter categories.

Scenario: Valid expense is created

• WHEN the user submits a title, positive amount, valid category, and valid local date
• THEN the system stores the expense and returns the created record

Scenario: Invalid expense is rejected

• WHEN the user submits a missing title, invalid amount, invalid category, or invalid date
• THEN the system rejects the request with a validation error and does not store the expense

Requirement: User can review and delete expenses

The system SHALL allow the user to list recorded expenses and delete a specific expense by identifier.

Scenario: Expenses are listed

• WHEN the user requests expenses for the app
• THEN the system returns stored expenses in a stable order with their recorded fields

Scenario: Expense is deleted

• WHEN the user deletes an existing expense
• THEN the system removes that expense and it no longer appears in future listings or aggregates