diff --git a/.claude/settings.json b/.claude/settings.json
index 6657bc1..8250926 100644
--- a/.claude/settings.json
+++ b/.claude/settings.json
@@ -80,6 +80,10 @@
           {
             "type": "command",
             "command": "git fetch origin 2>/dev/null; CHANGES=$(git log --oneline HEAD..origin/main 2>/dev/null | head -10); if [ -n \"$CHANGES\" ]; then echo '📌 [SessionStart] origin/main 변경 검출:'; echo \"$CHANGES\"; echo '→ 권장: git merge origin/main --no-edit'; else echo '✅ [SessionStart] main 동기화 상태'; fi"
+          },
+          {
+            "type": "command",
+            "command": "bash scripts/inbox_scan.sh 2>/dev/null || true"
           }
         ]
       }
diff --git a/scripts/inbox_scan.sh b/scripts/inbox_scan.sh
new file mode 100644
index 0000000..a8b2177
--- /dev/null
+++ b/scripts/inbox_scan.sh
@@ -0,0 +1,57 @@
+#!/bin/bash
+# SessionStart hook 확장: 자기 inbox 신규·미처리 파일 자동 알림
+# Phase 2 (2026-04-15 PD님 승인) — 공유/소통/ 6축 통신 허브 연동
+#
+# 부서 판단 규칙 (cwd 기반):
+#   - /기획실/ 경로 포함 → 기획실
+#   - /개발실/ 경로 포함 → 개발실
+#   - 그 외 → PM (루트)
+# 각 부서는 자기 수신 inbox 2개를 스캔하며, YAML `status: 완료` 가 아닌 파일만 보고한다.
+
+REPO_ROOT=$(git rev-parse --show-toplevel 2>/dev/null)
+[ -z "$REPO_ROOT" ] && exit 0
+
+CWD=$(pwd -W 2>/dev/null || pwd)
+
+if [[ "$CWD" == *"/기획실/"* ]] || [[ "$CWD" == *"/기획실" ]]; then
+  ROLE="기획실"
+  INBOXES=("$REPO_ROOT/공유/소통/PM→기획실" "$REPO_ROOT/공유/소통/개발실→기획실")
+elif [[ "$CWD" == *"/개발실/"* ]] || [[ "$CWD" == *"/개발실" ]]; then
+  ROLE="개발실"
+  INBOXES=("$REPO_ROOT/공유/소통/PM→개발실" "$REPO_ROOT/공유/소통/기획실→개발실")
+else
+  ROLE="PM"
+  INBOXES=("$REPO_ROOT/공유/소통/개발실→PM" "$REPO_ROOT/공유/소통/기획실→PM")
+fi
+
+TOTAL=0
+LINES=""
+
+for INBOX in "${INBOXES[@]}"; do
+  [ ! -d "$INBOX" ] && continue
+  CHANNEL=$(basename "$INBOX")
+  for f in "$INBOX"/*.md; do
+    [ -e "$f" ] || continue
+    STATUS=$(grep -m1 "^status:" "$f" 2>/dev/null | sed 's/status:[[:space:]]*//;s/[[:space:]]*$//')
+    [ "$STATUS" = "완료" ] && continue
+    SUBJECT=$(grep -m1 "^subject:" "$f" 2>/dev/null | sed 's/subject:[[:space:]]*//;s/[[:space:]]*$//')
+    FROM=$(grep -m1 "^from:" "$f" 2>/dev/null | sed 's/from:[[:space:]]*//;s/[[:space:]]*$//')
+    PRIORITY=$(grep -m1 "^priority:" "$f" 2>/dev/null | sed 's/priority:[[:space:]]*//;s/[[:space:]]*$//')
+    BASENAME=$(basename "$f")
+    [ -z "$SUBJECT" ] && SUBJECT="(제목 없음)"
+    [ -z "$FROM" ] && FROM="(발신자 없음)"
+    [ -z "$PRIORITY" ] && PRIORITY="normal"
+    [ -z "$STATUS" ] && STATUS="대기"
+    LINES+="  • [$CHANNEL] $FROM → $SUBJECT (prio:$PRIORITY, status:$STATUS) — $BASENAME
+"
+    TOTAL=$((TOTAL + 1))
+  done
+done
+
+if [ $TOTAL -gt 0 ]; then
+  echo "📬 [Inbox:$ROLE] 미처리 통신 $TOTAL 건 (공유/소통/):"
+  printf "%b" "$LINES"
+  echo "→ 처리 후 status: 완료 갱신 + git mv 공유/소통/완료/ + commit·push"
+else
+  echo "📭 [Inbox:$ROLE] 미처리 통신 없음"
+fi
diff --git a/개발실/.claude/settings.json b/개발실/.claude/settings.json
index 6657bc1..8250926 100644
--- a/개발실/.claude/settings.json
+++ b/개발실/.claude/settings.json
@@ -80,6 +80,10 @@
           {
             "type": "command",
             "command": "git fetch origin 2>/dev/null; CHANGES=$(git log --oneline HEAD..origin/main 2>/dev/null | head -10); if [ -n \"$CHANGES\" ]; then echo '📌 [SessionStart] origin/main 변경 검출:'; echo \"$CHANGES\"; echo '→ 권장: git merge origin/main --no-edit'; else echo '✅ [SessionStart] main 동기화 상태'; fi"
+          },
+          {
+            "type": "command",
+            "command": "bash scripts/inbox_scan.sh 2>/dev/null || true"
           }
         ]
       }
diff --git a/기획실/.claude/settings.json b/기획실/.claude/settings.json
index 6657bc1..8250926 100644
--- a/기획실/.claude/settings.json
+++ b/기획실/.claude/settings.json
@@ -80,6 +80,10 @@
           {
             "type": "command",
             "command": "git fetch origin 2>/dev/null; CHANGES=$(git log --oneline HEAD..origin/main 2>/dev/null | head -10); if [ -n \"$CHANGES\" ]; then echo '📌 [SessionStart] origin/main 변경 검출:'; echo \"$CHANGES\"; echo '→ 권장: git merge origin/main --no-edit'; else echo '✅ [SessionStart] main 동기화 상태'; fi"
+          },
+          {
+            "type": "command",
+            "command": "bash scripts/inbox_scan.sh 2>/dev/null || true"
           }
         ]
       }