What it is for
What the AI cost, and on what. It used to be a card inside Agents, which is a configuration screen — and you do not read the electricity bill in the same place you change the light bulb.
Reading the table
The total says how much. The table says why, and the two columns that answer it are calls and average cost: an expensive call and too many calls are different problems with the same invoice, and the fix for one makes the other worse.
- Input and output tokens. Input is what you send — the prompt, the glossary, the error. Output is what the model writes. Input is usually the bigger of the two and the cheaper per token, and it is the one a prompt change moves.
- Average time. A slow agent is not a cost problem, but it is the same measurement: it is how long the night job waits.
- Failures. Money that may have left without an answer: the provider charges for what it read before the call fell over. It is the only column that gets a colour, and only when it is not zero.
- No agent. A line without an agent name is a question that left through the plugin directly, because no agent covered that task. It used to be counted nowhere.
The task is what you turn on and off. "Triage costs more than analysis" is a configuration decision you can act on; "agent fiscal-2 costs more" is not — it is the same task under another name.
The ceiling
The daily ceiling of the account lives under Settings. Zero means no ceiling, which is the default: whoever has never had a bill scare should not wake up to the analysis turned off. Whoever has had one writes the number, and once it is reached nothing else gets asked until tomorrow.
The price per million tokens is set per agent and per plugin. Zero there means "I do not know what it costs", and then meulog counts tokens without pretending to know the value.