* Verify pinned transcript reads and stream Codex usage aggregation
* Resume Claude usage scans with compact token checkpoints
* Harden transcript snapshots and reject incomplete discovery
* Keep Codex race fixtures inside their temporary data home
* Verify pinned transcript rotation with portable file moves
* test: keep Claude usage mock registration in test suites
* Compress saved Claude usage without dropping history
* Keep Claude cache writes bound to their original request
* Register Claude contracts without conflicting with chat contracts
* Assert unchanged Claude sources skip the actual cache writer
Only assistant records carry usage, but the parser ran JSON.parse on every line
first and checked the type after. Claude transcripts interleave user and
tool-result lines that routinely embed whole files or captured command output,
so the scanner built and discarded a full object graph for each of them.
A substring gate on the line rejects them first: median 50.5ms to 8.4ms over
20000 realistic lines.
The three usage scanners and their stores, plus the renderer usage-overview
model, each carried a file-level `eslint-disable max-lines` and had grown to
338-769 counted lines against a 300-line budget. AGENTS.md calls for splitting
rather than suppressing, and config/max-lines-baseline.txt is a shrink-only
ratchet, so this removes all seven suppressions and prunes their entries
(341 -> 334).
Each file is cut along the seams it already had -- and that several of the
suppression comments named out loud: filesystem discovery / record parsing /
attribution / aggregation for the scanners, and pricing policy / scope filters /
rollups / session rows / automation attribution for the stores.
Pure move, no behavior change. Code is relocated verbatim; the only edits are
import plumbing and, where a private class method became a free function, the
mechanical `this.state` -> `state` parameter threading. Every converted call
site passes `this.state` at call time and the automation path takes a live
`getState: () => this.state` getter, so no state is snapshotted. No barrel
exports: each new module owns real logic and importers point at the owner.
Verified: oxlint clean, ratchet passes, typecheck clean, full unit suite green
(remaining failures are pre-existing load flakes in untouched files, each green
when re-run serially), no import cycles among the 64 affected modules, and a
statement-level diff of every split confirms the moves are verbatim.
Neil