47 lines
1.7 KiB
Markdown
47 lines
1.7 KiB
Markdown
---
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model: openai/gpt-5.6-sol
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service: opencode
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session: unavailable
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timestamp: 2026-08-26T22:26:00Z
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git_ref: 5f631e19
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scope: code
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substantive: true
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raw_file: 20260826T222600Z_5f631e19_prompt_io.raw.md
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---
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## Prompt
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Diagnose and fix the hanging Binance USD-M perpetual feed for
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`NVDAUSDT.USDTM.PERP.BINANCE` by comparing piker with Binance's current
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API and changelog. Ensure unsupported or silent websocket feeds fail
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loudly into `datad` and chart consumers instead of blocking startup.
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## Response summary
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Migrates Binance USD-M market data from the retired legacy websocket to
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the split public and market routes, handles Binance's new aggregate-trade
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schema, and introduces bounded connection and first-data startup. Direct
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stream URLs avoid reconnect-time subscription-ACK races, while targeted
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tests preserve routing and fail-loud behavior.
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## Files changed
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- `piker/brokers/binance/feed.py` - route, merge, normalize, and bound
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Binance quote streams.
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- `piker/brokers/binance/venues.py` - define current USD-M websocket
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endpoints.
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- `piker/data/_web_bs.py` - support bounded websocket context startup.
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- `tests/test_binance.py` - cover routes, schemas, and startup failures.
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- `ai/prompt-io/opencode/20260826T222600Z_5f631e19_prompt_io.raw.md` -
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retain the generated-output record.
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- `ai/prompt-io/opencode/20260826T222600Z_5f631e19_prompt_io.md` - record
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structured provenance for the code changes.
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## Human edits
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The human explicitly required fail-loud behavior rather than merely
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updating the endpoint, and supplied a direct CLI reproduction proving
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both `datad.binance` and the chart caller blocked. Those requirements
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drove the connection and first-data deadlines and their regressions. The
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changes remain uncommitted for human review.
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