73 lines
3.0 KiB
Markdown
73 lines
3.0 KiB
Markdown
---
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model: openai/gpt-5.6-sol
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service: opencode
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timestamp: 2026-07-29T20:40:46Z
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git_ref: ad6c560f
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diff_cmd: git diff HEAD~1..HEAD
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---
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The user reported that QQQ still displayed a gap on the 1-second chart
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after the focused `ldshm` fix and asked the agent to inspect it. The user
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then paused and resumed implementation while shutting down the live piker
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trading workspace.
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Read-only live inspection found the active datad generation held 653
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contiguous zero-time rows in QQQ's 1-second RT SHM, while durable Parquet
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contained no zero rows. The run occupied absolute indexes 168148 through
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168800 between timestamps 1785348398 and 1785349051. The stale actor
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generation and active 60-second history were separately identified.
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> `git diff HEAD~1..HEAD -- piker/tsp/_history.py`
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Generated history changes that exclude each inclusive reverse-query
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endpoint already present in SHM while retaining the full provider frame
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for NativeDB merge. Startup null repair now runs after reverse backfill,
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uses bounded UI notifications, handles provider no-data without an
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interactive pause, fills only exact interior zero groups, and refuses
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synthetic timestamps unless both valid boundaries establish the expected
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cadence.
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> `git diff HEAD~1..HEAD -- piker/brokers/ib/feed.py`
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Generated IB history reset changes that make blank responses complete,
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bound repeated cancellation and reset failures per request, serialize
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timeout and pacing farm resets with one actor-global Trio lock, carry
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explicit reset results, and coordinate pacing handoff with queued timeout
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waiters.
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> `git diff HEAD~1..HEAD -- tests/test_history_backfill.py`
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Generated regressions for inclusive endpoint exclusion, full NativeDB
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provider deltas, strict synthetic gap boundaries, empty-provider local
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fallback, bounded notifications, and preservation of valid margin rows.
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> `git diff HEAD~1..HEAD -- tests/test_ib_history.py`
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Generated deterministic regressions for blank IB responses, cancellation
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limits, stalled reset cancellation, pacing reset failure limits,
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cross-request reset serialization, timeout-to-pacing handoff, and
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successful handoff timeout restart.
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> `git diff HEAD~1..HEAD -- .claude/skills/run-tests/test-harness-reference.md`
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Registered the deterministic history-backfill target and expanded the IB
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history mapping to include `feed.py`.
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Verification output:
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```text
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........................................................................ [ 93%]
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..... [100%]
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77 passed in 2.12s
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```
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`git diff --check` passed. Multiple adversarial review rounds identified
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and drove fixes for unbounded IB empty/cancellation/reset paths, stale
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reset ownership, actor-global failure poisoning, concurrent farm resets,
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double-counted pacing handoffs, physical endpoint overlap, and unsafe
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synthetic timestamp boundaries. Final review reported no findings.
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Live validation was intentionally deferred because the user shut down the
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trading workspace. A fresh datad/chart startup is required to regenerate
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SHM and verify that QQQ no longer contains the 653-row null run.
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