46 lines
1.6 KiB
Markdown
46 lines
1.6 KiB
Markdown
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---
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created_at: 2026-11-06T18:56:28.621577+00:00
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generated_by:
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harness: codex
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provider: OpenAI
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git_ref: 495c0915
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scope: code
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substantive: true
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raw_file: 20261106T185628Z_495c0915_215e9b_prompt_io.raw.md
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---
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## Prompt
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User reported a different-feed overlap failure and asked whether
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a fix could be extracted without importing broader history work.
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PDB confirmed MNQ March 2027 one-second history timed out and
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returned None, producing NoData. After continuing PDB, sibling
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history and quote tasks terminated while pikerd remained alive.
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User requested continuing with the narrow backport.
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## Response summary
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Partial backport of the NoData/DataUnavailable catch from
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0846cbd4a4197e47415689cf5e9d146ba3174c32 into
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maybe_fill_null_segments(). The existing gap fallback remains in use.
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A new parametrized regression uses real null detection and verifies
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that a sibling in the same nursery survives the failed repair.
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Both new cases failed before the catch. The focused history suites
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passed after it: 17 passed. This does not qualify live overlap or fix
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IB reset churn or the separate Tractor completion-callback assertion.
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## Files changed
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- `piker/tsp/_history.py`: existing downstream exception catch.
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- `tests/test_history_backfill.py`: sibling survival regression.
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## Human edits
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User supplied live reproduction, PDB locals and cancellation logs,
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and explicitly constrained scope to a small history extraction.
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The production catch is copied from existing downstream commit
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0846cbd4, not newly designed here. New regression is agent-authored;
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no direct human source edits observed during this patch. Review and
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live qualification remain with the user.
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