diff --git a/scripts/scrum_review.sh b/scripts/scrum_review.sh
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+++ b/scripts/scrum_review.sh
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+#!/usr/bin/env bash
+# Cross-lineage scrum review driver.
+#
+# Per feedback_cross_lineage_review.md: Opus + Kimi + Qwen3-coder
+# review the same diff via /v1/chat. Convergent findings (≥2
+# reviewers) = high-signal real bugs; single-reviewer = lineage
+# catch.
+#
+# Usage:
+#   ./scripts/scrum_review.sh <bundle.diff> <bundle_label>
+#
+# Outputs verbatim verdicts to:
+#   reports/scrum/_evidence/<DATE>/verdicts/<bundle>_<reviewer>.md
+set -euo pipefail
+cd "$(dirname "$0")/.."
+
+DIFF_FILE="${1:-}"
+BUNDLE_LABEL="${2:-}"
+DATE="${SCRUM_DATE:-$(date +%Y-%m-%d)}"
+GATEWAY="${LH_GATEWAY:-http://127.0.0.1:3110}"
+OUT_DIR="reports/scrum/_evidence/${DATE}/verdicts"
+
+if [ -z "$DIFF_FILE" ] || [ ! -f "$DIFF_FILE" ]; then
+  echo "usage: $0 <diff_file> <bundle_label>"
+  echo "example: $0 reports/scrum/_evidence/2026-04-30/diffs/bundle_A_config_refactor.diff config_refactor"
+  exit 1
+fi
+
+mkdir -p "$OUT_DIR"
+DIFF_BYTES=$(wc -c < "$DIFF_FILE")
+DIFF_LINES=$(wc -l < "$DIFF_FILE")
+echo "[scrum] $BUNDLE_LABEL — $DIFF_LINES lines · $DIFF_BYTES bytes · 3 reviewers"
+
+# System prompt — same shape as the Rust auditor's review template,
+# tightened per feedback_cross_lineage_review.md (lead with verdict).
+SYSTEM='You are a senior code reviewer in a 3-lineage cross-review.
+Your verdict feeds a convergent-finding gate (≥2 reviewers = real
+bug). Be terse, evidence-based, and lead with the verdict.
+
+For each finding, output one block:
+
+  SEVERITY: BLOCK | WARN | INFO
+  WHERE:    <file>:<line> (or <file>:<symbol>)
+  WHAT:     one-sentence description
+  WHY:      one-sentence rationale grounded in the diff
+
+Severity ladder:
+- BLOCK = ship-blocker. Wrong correctness, security flaw, broken
+          contract, lost test coverage, panic on real input, secret
+          leak. Worth blocking the PR.
+- WARN  = real but non-blocking. Race condition under specific
+          load, missing edge case, weak naming making future bugs
+          likely, regression risk in adjacent code.
+- INFO  = nit / style / better-name suggestion / dead-code remnant.
+
+Skip the analysis preamble. Lead with the first BLOCK/WARN/INFO
+block. End with an empty "VERDICT:" line of "ship | ship-with-fixes
+| hold" + ≤15 word summary.
+
+Never invent line numbers — only cite lines the diff shows.'
+
+REVIEWERS=(
+  "opus|opencode/claude-opus-4-7"
+  "kimi|openrouter/moonshotai/kimi-k2-0905"
+  "qwen|openrouter/qwen/qwen3-coder"
+)
+
+DIFF_CONTENT=$(cat "$DIFF_FILE")
+
+run_review() {
+  local short="$1" model="$2"
+  local out="$OUT_DIR/${BUNDLE_LABEL}_${short}.md"
+  local user="Review the following diff. Bundle: $BUNDLE_LABEL.
+
+\`\`\`diff
+$DIFF_CONTENT
+\`\`\`"
+  local body
+  body=$(jq -n --arg model "$model" --arg sys "$SYSTEM" --arg user "$user" \
+    '{model:$model, max_tokens:4096, messages:[{role:"system",content:$sys},{role:"user",content:$user}]}')
+  printf "  %-6s %s ... " "$short" "$model"
+  local t0=$SECONDS
+  local status
+  status=$(curl -sS -o /tmp/scrum_resp.json -w '%{http_code}' --max-time 240 \
+    -X POST "$GATEWAY/v1/chat" \
+    -H 'Content-Type: application/json' \
+    --data "$body")
+  local elapsed=$((SECONDS - t0))
+  if [ "$status" != "200" ]; then
+    printf "✗ HTTP %s (%ds)\n" "$status" "$elapsed"
+    head -c 300 /tmp/scrum_resp.json
+    echo
+    return 1
+  fi
+  local content latency tokens_in tokens_out
+  content=$(jq -r '.content' /tmp/scrum_resp.json)
+  latency=$(jq -r '.latency_ms' /tmp/scrum_resp.json)
+  tokens_in=$(jq -r '.input_tokens // 0' /tmp/scrum_resp.json)
+  tokens_out=$(jq -r '.output_tokens // 0' /tmp/scrum_resp.json)
+  {
+    echo "# Scrum review — $BUNDLE_LABEL — $short ($model)"
+    echo
+    echo "**Latency:** ${latency}ms · **Tokens:** ${tokens_in} in / ${tokens_out} out · **Date:** ${DATE}"
+    echo
+    echo "---"
+    echo
+    echo "$content"
+  } > "$out"
+  printf "✓ %dms · %dt-out → %s\n" "$latency" "$tokens_out" "$out"
+}
+
+for r in "${REVIEWERS[@]}"; do
+  short="${r%%|*}"
+  model="${r#*|}"
+  run_review "$short" "$model" || true
+done
+
+echo "[scrum] $BUNDLE_LABEL complete"