diff --git a/.github/workflows/multi-persona-awakening.yml b/.github/workflows/multi-persona-awakening.yml
index 8a0ff54b..d8331586 100644
--- a/.github/workflows/multi-persona-awakening.yml
+++ b/.github/workflows/multi-persona-awakening.yml
@@ -74,7 +74,7 @@ jobs:
           INPUT_PERSONAS: ${{ github.event.inputs.personas }}
         run: |
           DATE=$(date +%Y-%m-%d)
-          SESSION_ID="MULTI-WAKE-$(date +%Y%m%d)-001"
+          SESSION_ID="MULTI-WAKE-$(date +%Y%m%d-%H%M%S)"
           mkdir -p grid-db/multi-wake-sessions
           SESSION_FILE="grid-db/multi-wake-sessions/${SESSION_ID}.json"
 
@@ -241,7 +241,7 @@ jobs:
               if not questions:
                 continue
               for q in questions:
-                h = int(hashlib.md5(q.encode()).hexdigest(), 16) % 10000
+                h = int(hashlib.md5((p['persona_id'] + q + datetime.now().isoformat()).encode()).hexdigest(), 16) % 10000
                 msg = {
                   'id': f"MSG-{datetime.now().strftime('%Y%m%d')}-{h:04d}",
                   'channel': 'general',
diff --git a/.github/workflows/persona-thinking-window.yml b/.github/workflows/persona-thinking-window.yml
index 902206d7..c05d9073 100644
--- a/.github/workflows/persona-thinking-window.yml
+++ b/.github/workflows/persona-thinking-window.yml
@@ -236,7 +236,7 @@ jobs:
 
           export LOG_FILE
           python3 << 'PYEOF'
-          import json, os
+          import json, os, hashlib
           from datetime import datetime
           log_file = os.environ["LOG_FILE"]
           persona_id = os.environ["PERSONA_ID"]
@@ -257,7 +257,7 @@ jobs:
           with open(general, "a") as f:
             for m in msgs:
               msg = {
-                "id": f"MSG-{datetime.now().strftime('%Y%m%d')}-{int(__import__('hashlib').md5(m.get('message','').encode()).hexdigest(), 16) % 10000:04d}",
+                "id": f"MSG-{datetime.now().strftime('%Y%m%d')}-{int(hashlib.md5((persona_id + m.get('message','') + datetime.now().isoformat()).encode()).hexdigest(), 16) % 10000:04d}",
                 "channel": "general",
                 "from": persona_id,
                 "from_name": persona_name,
diff --git a/scripts/chatroom-post.js b/scripts/chatroom-post.js
index ed3990da..1953f27a 100644
--- a/scripts/chatroom-post.js
+++ b/scripts/chatroom-post.js
@@ -35,7 +35,7 @@ fs.mkdirSync(path.dirname(channelFile), { recursive: true });
 const now = new Date();
 const dateStr = now.toISOString().slice(0, 10).replace(/-/g, '');
 const hash = crypto.createHash('md5').update(content + now.toISOString()).digest('hex');
-const msgId = `MSG-${dateStr}-${parseInt(hash.slice(0, 8), 16) % 10000}`.replace(/-(\d)$/, '-000$1').replace(/-(\d{2})$/, '-00$1').replace(/-(\d{3})$/, '-0$1');
+const msgId = `MSG-${dateStr}-${String(parseInt(hash.slice(0, 8), 16) % 10000).padStart(4, '0')}`;
 
 const message = {
   id: msgId,