diff --git a/4-Infrastructure/shim/lbi.sh b/4-Infrastructure/shim/lbi.sh
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+#!/bin/bash
+# lbi — Lake Build + Ingest wrapper
+# Runs `lake build` and ingests results into ENE on neon-64gb.
+# Use this instead of bare `lake build` to keep databases in sync.
+#
+# Usage:
+#   lbi                    # full build + ingest
+#   lbi Compiler           # compiler surface + ingest
+#   lbi Semantics.GraphRank  # narrow target + ingest
+#
+# Aliases (add to .bashrc / .zshrc):
+#   alias lake-build='lbi'
+#   alias lb='lbi'
+
+set -euo pipefail
+
+LEAN_DIR="${LEAN_DIR:-/home/allaun/Research Stack/0-Core-Formalism/lean/Semantics}"
+INGEST_SCRIPT="/home/allaun/Research Stack/4-Infrastructure/shim/lake_build_ingest.py"
+TARGET="${1:-}"
+ACTOR="${2:-opencode}"
+
+# Run lake build
+echo "▸ lake build ${TARGET:-<full>}"
+cd "$LEAN_DIR" || exit 1
+lake build $TARGET 2>&1
+BUILD_EXIT=$?
+
+if [ $BUILD_EXIT -ne 0 ]; then
+  echo "✗ lake build failed (exit $BUILD_EXIT), skipping ingest"
+  exit $BUILD_EXIT
+fi
+
+echo "▸ ingesting into ENE..."
+python3 "$INGEST_SCRIPT" ${TARGET:+$TARGET} --actor "$ACTOR" 2>&1 || true
+echo "✓ done"