# Scrum review — c3_materializer — qwen (openrouter/qwen/qwen3-coder)

**Latency:** 7736ms · **Tokens:** 23114 in / 176 out · **Date:** 2026-05-02

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SEVERITY: BLOCK
WHERE: internal/materializer/materializer.go:297
WHAT: ValidationPass set false only when RowsSkipped > 0, but skips file write failures are ignored
WHY: The receipt's ValidationPass is determined solely by `totals.RowsSkipped == 0`, but errors writing the skips file are silently dropped, which could lead to data loss without proper signaling.

SEVERITY: WARN
WHERE: internal/materializer/materializer.go:484
WHAT: Fallback to "0000/00/00" partition may cause filesystem issues
WHY: Using "0000/00/00" as a fallback for invalid timestamps can cause unexpected behavior, as it's not a valid date and could confuse downstream systems expecting real dates.

VERDICT: ship-with-fixes
