Suivi temps réel des agents : MQTT status/retain + injection dynamique dans le prompt

- on_mqtt_status : dict AGENTS_ONLINE + agents_online.json + notif XMPP si changement
- _get_agents_context() : liste agents avec statut [EN LIGNE/hors ligne] à chaque LLM call
- system_prompt : retrait liste hardcodée, agents injectés dynamiquement

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

agent1.py

@@ -40,7 +40,26 @@ SYSTEM_PROMPT = load_system_prompt()
 load_skills()
 
 conversation_history = []
-xmpp_bot = None  # référence globale pour répondre via XMPP depuis MQTT
+xmpp_bot     = None   # référence globale pour répondre via XMPP depuis MQTT
+AGENTS_ONLINE = {}    # {agent_name: {status, jid, mqtt_inbox, last_seen}}
+
+REGISTRY_FILE    = CONFIG_DIR / "agents_registry.json"
+AGENTS_ONLINE_FILE = CONFIG_DIR / "agents_online.json"
+
+def _get_agents_context() -> str:
+    """Construit dynamiquement la liste des agents (registre + statut en ligne)."""
+    try:
+        registry = json.loads(REGISTRY_FILE.read_text(encoding="utf-8"))
+    except Exception:
+        registry = {}
+    if not registry:
+        return "Aucun agent enregistré."
+    lines = ["Agents disponibles :"]
+    for name, info in registry.items():
+        online = name in AGENTS_ONLINE and AGENTS_ONLINE[name].get("status") == "online"
+        status = "[EN LIGNE]" if online else "[hors ligne]"
+        lines.append("- {} {} : {}".format(name, status, info.get("speciality", "")))
+    return "\n".join(lines)
 
 # ── LLM ──────────────────────────────────────────────────────────────────
 def call_ollama(messages: list) -> str:
@@ -57,7 +76,8 @@ def ask_llm(user_message: str, history: list = None) -> str:
     if history is None:
         history = conversation_history
     history.append({"role": "user", "content": user_message})
-    messages = [{"role": "system", "content": SYSTEM_PROMPT}] + history
+    full_prompt = SYSTEM_PROMPT + "\n\n" + _get_agents_context()
+    messages = [{"role": "system", "content": full_prompt}] + history
     try:
         MAX_STEPS = 10
         for _ in range(MAX_STEPS):
@@ -133,6 +153,34 @@ def on_mqtt_notification(client, userdata, msg):
     except Exception as e:
         print("[MQTT] Erreur parsing notification scheduler : {}".format(e))
 
+def on_mqtt_status(client, userdata, msg):
+    """Suit le statut en ligne/hors-ligne des agents (LWT + retain)."""
+    import time
+    try:
+        data   = json.loads(msg.payload.decode(errors="replace"))
+        agent  = data.get("agent", "?")
+        status = data.get("status", "?")
+
+        was_online = AGENTS_ONLINE.get(agent, {}).get("status") == "online"
+        AGENTS_ONLINE[agent] = {**data, "last_seen": time.time()}
+
+        # Sauvegarder pour la skill agents_online
+        AGENTS_ONLINE_FILE.write_text(
+            json.dumps(AGENTS_ONLINE, indent=2, ensure_ascii=False), encoding="utf-8")
+
+        # Notifier sylvain uniquement si le statut change
+        is_online = status == "online"
+        if is_online == was_online:
+            return
+        emoji  = "[EN LIGNE]" if is_online else "[HORS LIGNE]"
+        print("[STATUS] {} → {}".format(agent, status))
+        if xmpp_bot:
+            xmpp_bot.send_message(mto=ADMIN_JID,
+                                  mbody="{} {}".format(emoji, agent),
+                                  mtype='chat')
+    except Exception as e:
+        print("[MQTT] Erreur parsing status : {}".format(e))
+
 def on_mqtt_register(client, userdata, msg):
     """Reçoit les déclarations de mise en ligne des agents et met à jour le registre."""
     try:
@@ -183,6 +231,7 @@ def start_mqtt_listener():
     sub.message_callback_add("agents/errors",                    on_mqtt_error)
     sub.message_callback_add("agents/scheduler/notifications",   on_mqtt_notification)
     sub.message_callback_add("agents/register",                  on_mqtt_register)
+    sub.message_callback_add("agents/status/+",                  on_mqtt_status)
     sub.on_message = on_mqtt_message  # fallback
     sub.connect(MQTT_HOST, MQTT_PORT)
     sub.subscribe([
@@ -190,8 +239,9 @@ def start_mqtt_listener():
         ("agents/errors",                  0),
         ("agents/scheduler/notifications", 0),
         ("agents/register",                0),
+        ("agents/status/+",                0),
     ])
-    print("[MQTT] Agent1 écoute sur {}, agents/errors, agents/scheduler/notifications, agents/register".format(MQTT_INBOX))
+    print("[MQTT] Agent1 écoute sur {}, agents/errors, agents/status/+, agents/register".format(MQTT_INBOX))
     sub.loop_forever()
 
 # ── BOT XMPP ─────────────────────────────────────────────────────────────