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  "debrief": "OpenAI Codex refactored OSM cache benchmarking helpers in bmander/graphserver, splitting provider loading and engine benchmarking into helpers and updating benchmark_routing_performance to use them. The test run failed: graphserver could not be imported. The change spanned 17 files and 17 commits, with 2855 additions and 1341 deletions. It merged after 86.35 hours with no changes requested.",
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  "body_excerpt": "## Summary\n- break out provider loading and engine benchmarking into helpers\n- compute performance metrics with a dedicated helper\n- update `benchmark_routing_performance` to use new helpers\n\n## Testing\n- `pytest -q` *(fails: cannot import graphserver)*\n\n------\nhttps://chatgpt.com/codex/tasks/task_e",
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   "title": "Implement transit edge provider for GTFS-based routing",
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