---
model: gpt-5.6-sol
provider: openai
service: opencode
timestamp: 2026-07-22T00:13:57Z
git_ref: 16f3cd6f
diff_cmd: git diff HEAD~1..HEAD
---

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

Generated canonical gap and null-segment normalization. Derived
datetime and delta columns are recomputed after final sorting and
duplicate resolution, and negative deltas no longer become ordinary
gaps.

NumPy and Polars null grouping share one implementation while
retaining the human-oriented visual map of contiguous zero runs. The
documented contract defines absolute inclusive endpoints, margin
expansion, frame boundary clamping, contiguous-index validation, and
requested-column selection.

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

Adjusted smart dedupe to honor sorted output and resolve duplicate
timestamps without retaining stale order.

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

Added deterministic synthetic OHLCV coverage for sorted dedupe, fresh
derived columns, and positive gap detection. Null grouping is checked
against readable endpoint examples and an independent state-machine
oracle over every layout through six rows, three margin widths, and
both NumPy and Polars inputs.

Verification generated with the patch:

`timeout -k 5 30 python -m pytest -q tests/test_tsp_analysis.py`

Result: 11 passed.
