Scaffold Lumbridge architecture and research plan

2026-08-31 14:37:49 -07:00
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+# 0002: Usage data always carries provenance
+
+Status: accepted for the architecture phase.
+
+Provider quotas and subscription windows do not share a stable universal API.
+Lumbridge therefore stores observations with their source and derives forecasts
+without overwriting the facts.
+
+Allowed provenance values begin as provider-reported, harness-reported, locally
+measured, estimated, and unavailable. The UI may simplify these labels in compact
+views, but the detail view and export retain them.
+
+Lumbridge will not scrape browser cookies, copy upstream OAuth tokens, or label a
+local estimate as an exact remaining subscription balance.
+