38 lines
1.4 KiB
Markdown
38 lines
1.4 KiB
Markdown
---
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model: openai/gpt-5.6-sol
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service: opencode
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session: 253ade33-07ba-45b5-8839-be35d17ec164
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timestamp: 2026-07-29T20:40:46Z
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git_ref: ad6c560f
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scope: code
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substantive: true
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raw_file: 20260729T204046Z_ad6c560f_prompt_io.raw.md
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---
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## Prompt
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The user reported that the QQQ 1-second chart still contained a gap after
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the `ldshm` fix, asked the agent to inspect it, and authorized continued
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implementation after a short pause and shutdown of the live workspace.
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## Response summary
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Diagnosed a 653-row active RT SHM null reservation caused by inclusive IB
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reverse-query overlaps and startup repair orchestration. Prevented extra
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physical SHM overlap rows, serialized and bounded IB history recovery,
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made blank/error responses terminate, and constrained synthetic repair to
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valid interior timestamp boundaries. Added deterministic concurrency and
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data-layout regressions.
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## Files changed
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- `piker/brokers/ib/feed.py` - bound and serialize IB history reset/retry behavior.
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- `piker/tsp/_history.py` - prevent SHM overlap skew and safely finalize null repair.
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- `tests/test_ib_history.py` - cover blank, cancellation, reset, and pacing interleavings.
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- `tests/test_history_backfill.py` - cover overlap and null-repair invariants.
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- `.claude/skills/run-tests/test-harness-reference.md` - register deterministic coverage.
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## Human edits
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None - generated output remains uncommitted.
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