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Four findings deferred from the 2026-05-02 scrum, all 1-5 line fixes: W1 (kimi WARN @ scrum_master_pipeline.ts:1143) — `gemini-3-flash-preview` hardcoded twice in MAP and REDUCE phases. Extracted TREE_SPLIT_MODEL + TREE_SPLIT_PROVIDER constants near the existing config block. Diverging the two would break tree-split coherence (per-shard digests must come from the same model the reducer collapses). W2 (qwen WARN @ providers.toml:30) — stale `kimi-k2:1t` reference in operator-facing comments after PR #13 noted it's upstream-broken. Reframed as historical context ("was X here pre-2026-05-03 — that model is broken") so future operators don't paste-route from the comment. W3 (opus WARN @ vectord-lance/src/lib.rs:622) — temp_path() entropy was only pid+nanos, which collide under tokio scheduling when multiple tests in the same cargo process create temp dirs back-to-back. Added per-process AtomicU64 sequence counter — guarantees uniqueness regardless of clock. W4 (opus INFO @ scripts/lance_smoke.sh:38) — `|| echo '{}'` swallowed curl transport failures (gateway down, network broken, timeout), surfacing as misleading "no method field" jq errors at the next probe. Now captures $? separately, gates a "curl reachable" probe, and only falls back to empty body for the dependent jq parse. Smoke went 9 → 10 probes. Verified: vectord-lance 7/7 tests PASS, gateway cargo check clean, lance_smoke.sh 10/10 PASS against live gateway. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>