---
model: gpt-5.6-sol
provider: openai
service: opencode
session: ses_0799212ebffe42arY96czXn89F
timestamp: 2026-07-22T02:41:33Z
git_ref: 3a4f6737
scope: code
substantive: true
raw_file: 20260722T024133Z_3a4f6737_prompt_io.raw.md
---

## Prompt

The user challenged the analysis commit message's claim that only
positive sample-step gaps are detected and asked whether out-of-order
timestamps were simply ignored. After confirming the missing separate
reporting path, the user instructed the agent to implement the fix.

## Response summary

Separated missing-history gaps from timestamp-ordering errors without
changing the existing `dedupe()` return shape. Added a structured
detector and made normalization warn before sorting removes evidence of
duplicates or reversed timestamps.

## Files changed

- `piker/tsp/_anal.py` - ordering detector and dedupe reporting
- `piker/tsp/__init__.py` - public detector export
- `tests/test_tsp_analysis.py` - exact ordering-error regression
- `ai/prompt-io/opencode/20260722T024133Z_3a4f6737_prompt_io.raw.md`
  - unedited response record
- `ai/prompt-io/opencode/20260722T024133Z_3a4f6737_prompt_io.md`
  - provenance metadata and response summary

## Human edits

None - generated changes have not yet been edited by the human.