Show Cost
Domain: Configuration
Motivation
A display setting that shows token usage and cost after each response.
Concrete Example
display.show_cost: true. After each response: Tokens: 1,234 in, 567 out. Cost: $0.012. You see how much each message costs.
Analogy
A receipt after shopping - you see how much you spent. Show cost displays the token and dollar cost of each response.