07 — The interface

Summary

A vault app in the estate's shipped pattern, read-only, one page: policy, zone and balance, draw frequency, correlation, events and requests. The zone is the headline and the balance sits under it, because balance is the metric everybody builds and the wrong one to lead with. Silence below cover, nothing typed, and test events visible in their own lane and excluded from the balance. The briefing a session is handed at start is printed verbatim, computed field by field, ending with the tier on its face. What is reused is the skeleton; what is new is five cards and one text; the chat-thread component that exists is not used because the pilot's thread is a folder.

Key concepts

• Draw frequency before balance — the leading indicator, and the issuer's input at the period boundary
• Correlation from week one — because nobody builds it later
• The briefing — W1, injected by SessionStart

Key ideas

• The room is quiet by design and loud in exactly two colours.
• If the room disagrees with the ledger, the room is wrong and the ledger commit in the footer is how you prove it.

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