---
model: gpt-5.6-sol
provider: openai
service: opencode
timestamp: 2026-07-22T02:41:34Z
git_ref: 3a4f6737
diff_cmd: git diff HEAD~1..HEAD
---

> `git diff HEAD~1..HEAD -- piker/storage/__init__.py piker/storage/nativedb.py piker/storage/marketstore/__init__.py`

Added an incremental storage update contract. NativeDB now validates
canonical numeric OHLCV data, serializes writers both actor-locally and
through cancellable filesystem locks, merges with incoming-wins seam
resolution, regenerates contiguous indexes, reopens and validates a
same-directory temporary parquet, fsyncs it, atomically replaces the
target, fsyncs the directory, and publishes cache only after replacement.

NativeDB indexing ignores lock and crash-left temporary files.
MarketStore uses its non-duplicate write mode for incremental updates.

> `git diff HEAD~1..HEAD -- piker/tsp/_history.py`

Separated full provider deltas from capacity-truncated SHM pushes.
Backfill persists before SHM mutation, publishes bounded notifications,
and delays latest-frame publication until the concurrent pre-update
storage snapshot completes.

> `git diff HEAD~1..HEAD -- tests/test_storage_nativedb.py tests/test_history_backfill.py`

Added deterministic coverage for merge preservation, conflict policy,
atomic failures, reopened-candidate validation, cache consistency,
schema and timestamp invariants, contiguous index regeneration,
separate series, stale temp indexing, cancellable file-lock contention,
full provider-delta persistence, latest-frame ordering, and bounded
notification teardown.

Verification generated with the patch:

- deterministic analysis/backfill/storage set: 31 passed
- Ruff: passed
- `git diff --check`: passed
- final adversarial review: no findings
