Usage Catalog

Reasonix stores disposable usage rollups at <cache root>/usage-catalog/v1.sqlite. Daily statistics JSONL remains authoritative and byte-compatible with older versions. The catalog records file offsets and line hashes for cross-process idempotency, then derives daily source/model/provider rollups.

Only a successful JSONL append emits a non-blocking receipt. Duplicate receipts cannot double-count a line. A changed hash, truncated file, replacement, queue overflow, or external append triggers byte-offset reconciliation or a safe per-day rebuild. Torn tails, blank lines, corrupt JSON, legacy request defaults, time zones, date boundaries, and active-day semantics match the existing JSONL decoder.

SQL aggregation is used only when every selected day is complete. Otherwise the existing exact JSONL query runs on explicit statistics-page access while the background index catches up. Catalog failures never block provider events, turn completion, controller startup, or shutdown.

reasonix doctor catalogs [--json]
reasonix catalogs reindex usage [--json]

Diagnostics expose schema, integrity, lag, counts, and failures without model request content. Reindexing never changes daily JSONL.