MODIFIED Requirements

Requirement: Task assignment

A task SHALL have at most one assignee, and the assignee MUST be a member of the task's project. Changing the assignee SHALL emit an assignment event consumed by the notifications capability.

Scenario: Assign to project member

• WHEN a member assigns a task to another member of the same project
• THEN the task's assignee is updated
• AND an assignment event is recorded for the new assignee

Scenario: Assign to non-member

• WHEN a member assigns a task to a user who is not in the project
• THEN the system rejects the request with a 403 error
• AND the existing assignee is unchanged

Scenario: Unassign a task

• WHEN a member clears the assignee of a task
• THEN the task has no assignee
• AND no assignment event is recorded