Caprock Files

Added

• Prices can now carry the dates they applied, and a turn is costed at the price it actually ran under. Sonnet 5 launched at an introductory $2/$10 and reverts to $3/$15 on 2026-08-31. With one row per model the only way to record that is to overwrite the figure — which would have silently restated every August turn at a price nobody was charged, growing a month's reported spend by half overnight. That is rule 6's "no invented numbers" pointed at our own history.

A superseded price now keeps its own row with until (the last date it applied, inclusive, UTC), the current price is the row with no until, and each turn is priced by the row in force at its timestamp. Tests cover all four boundaries and were verified by breaking them.

• The size of the spend on the main screen, not only how it divides. Each model row carries its token count beside its cost, and the panel gained an input / output / cache read / cache write line. A share says how the money split and nothing about how much there was: "opus-5, 54%" reads the same at forty dollars and at four thousand. Output costs five times input, so the ratio is the explanation of the bill, and it was a screen away on Cost.