Fix real-time agent status tracking and add status hooks

- Fix root cause: Message.from_json was parsing status/capabilities
  payloads (plain JSON dicts) as Message objects with empty payload,
  causing _on_status_update to silently fail. Now plain JSON payloads
  (no 'type'/'sender' keys) are passed as raw strings to callbacks.
- _on_status_update: ignore own status, call on_agent_status_change
  hook only when status actually changes (was_online != is_online)
- Add on_agent_status_change(agent_id, status) hook in BaseAgent
- Add on_xmpp_connected() hook in BaseAgent
- XMPPClient.connect_async() accepts on_ready callback

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

agents_core/base_agent.py

@@ -195,7 +195,7 @@ class BaseAgent(ABC):
         # Connexion XMPP
         if self.xmpp:
             self.xmpp.set_message_callback(self._on_xmpp_message)
-            self.xmpp.connect_async()
+            self.xmpp.connect_async(on_ready=self.on_xmpp_connected)
 
         # Démarrage du worker de tâches
         self.queue.start_worker(self._execute_task)
@@ -297,15 +297,35 @@ class BaseAgent(ABC):
                 return
             agent_id = data.get("agent_id")
             status = data.get("status")
-            if agent_id and status:
+            if not agent_id or not status:
+                return
+            # Ignorer nos propres messages de statut
+            if agent_id == self.agent_id:
+                return
             with self._online_lock:
+                was_online = agent_id in self._online_agents
                 if status == "online":
                     self._online_agents.add(agent_id)
                 else:
                     self._online_agents.discard(agent_id)
+                is_online = agent_id in self._online_agents
+            # Appel du hook seulement si le statut a changé
+            if was_online != is_online:
+                try:
+                    self.on_agent_status_change(agent_id, status)
+                except Exception as e:
+                    logger.debug(f"on_agent_status_change error: {e}")
         except Exception:
             pass
 
+    def on_agent_status_change(self, agent_id: str, status: str):
+        """
+        Hook appelé en temps réel quand un agent change de statut.
+        status = "online" | "offline"
+        À surcharger dans les sous-classes pour réagir aux changements.
+        """
+        pass
+
     # ──────────────────────────────────────────────
     # Traitement des tâches
     # ──────────────────────────────────────────────
@@ -487,6 +507,10 @@ class BaseAgent(ABC):
         """Hook appelé après le démarrage complet. Surcharger si besoin."""
         pass
 
+    def on_xmpp_connected(self):
+        """Hook appelé une fois la connexion XMPP établie. Surcharger si besoin."""
+        pass
+
     def on_broadcast(self, msg: Message):
         """Hook appelé à la réception d'un broadcast. Surcharger si besoin."""
         pass

agents_core/mqtt_client.py

@@ -131,15 +131,24 @@ class MQTTClient:
             return
 
         try:
-            msg = Message.from_json(mqtt_msg.payload)
+            raw_str = mqtt_msg.payload.decode()
+            # Tente de parser comme Message structuré seulement si
+            # le JSON contient les champs attendus (type ou sender)
+            parsed = json.loads(raw_str)
+            if isinstance(parsed, dict) and ("type" in parsed or "sender" in parsed):
+                msg = Message.from_json(raw_str)
                 callback(msg, topic)
-        except Exception as e:
+            else:
+                # Payload JSON simple (ex: statut, capacités) → passe la string brute
+                callback(raw_str, topic)
+        except (json.JSONDecodeError, UnicodeDecodeError):
             # Payload non-JSON (ex: commande shell brute)
-            logger.debug(f"[{self.agent_id}] Payload non-JSON sur {topic}: {e}")
             try:
                 callback(mqtt_msg.payload.decode(), topic)
             except Exception as e2:
                 logger.error(f"[{self.agent_id}] Erreur callback sur {topic}: {e2}")
+        except Exception as e:
+            logger.error(f"[{self.agent_id}] Erreur callback sur {topic}: {e}")
 
     @staticmethod
     def _topic_matches(pattern: str, topic: str) -> bool:

agents_core/xmpp_client.py

@@ -70,8 +70,11 @@ class XMPPClient:
         bare = jid.lower().split("/")[0]
         return bare in self.admin_jids
 
-    def connect_async(self):
+    def connect_async(self, on_ready: Optional[Callable] = None):
-        """Connexion XMPP dans un thread dédié."""
+        """Connexion XMPP dans un thread dédié.
+        on_ready() est appelé une fois la connexion établie.
+        """
+        self._on_ready_cb = on_ready
         self._client = _SlixClient(
             jid=self.jid,
             password=self.password,
@@ -96,6 +99,11 @@ class XMPPClient:
                 logger.info(f"[XMPP] Groupe rejoint : {self.muc_room}")
             if self.admin_jids:
                 logger.info(f"[XMPP] Admins autorisés : {', '.join(sorted(self.admin_jids))}")
+            if self._on_ready_cb:
+                try:
+                    self._on_ready_cb()
+                except Exception as e:
+                    logger.error(f"[XMPP] Erreur on_ready callback : {e}")
         else:
             logger.warning("[XMPP] Timeout connexion")
 

build/lib/agents_core/__init__.py

@@ -0,0 +1,25 @@
+"""
+agents_core — Librairie commune pour tous les agents du système.
+"""
+from .base_agent import BaseAgent, AgentContext
+from .message_bus import Message, MessageType
+from .mqtt_client import MQTTClient
+from .xmpp_client import XMPPClient
+from .llm_client import LLMClient
+from .task_queue import TaskQueue, Task, TaskStatus
+from .skill_loader import SkillLoader, Skill
+from .capabilities import AgentCapabilities, CapabilitiesRegistry
+from .command_parser import parse as parse_command, ParsedCommand, CommandType
+
+__version__ = "2.0.0"
+__all__ = [
+    "BaseAgent", "AgentContext",
+    "Message", "MessageType",
+    "MQTTClient",
+    "XMPPClient",
+    "LLMClient",
+    "TaskQueue", "Task", "TaskStatus",
+    "SkillLoader", "Skill",
+    "AgentCapabilities", "CapabilitiesRegistry",
+    "parse_command", "ParsedCommand", "CommandType",
+]

build/lib/agents_core/base_agent.py

@@ -0,0 +1,501 @@
+"""
+Classe de base pour tous les agents du système.
+Hériter de BaseAgent et implémenter les méthodes abstraites.
+
+Usage minimal :
+    class MyAgent(BaseAgent):
+        AGENT_TYPE = "debian"
+        DESCRIPTION = "Administration système Debian"
+
+        def get_skills_dir(self) -> str:
+            return os.path.join(os.path.dirname(__file__), "skills")
+
+    if __name__ == "__main__":
+        MyAgent().run()
+"""
+import json
+import logging
+import os
+import signal
+import sys
+import threading
+import time
+from abc import ABC, abstractmethod
+from typing import Optional
+
+from .capabilities import AgentCapabilities, CapabilitiesRegistry
+from .command_parser import ParsedCommand, parse as parse_command, CommandType, help_text
+from .llm_client import LLMClient
+from .message_bus import Message, MessageType
+from .mqtt_client import MQTTClient
+from .skill_loader import SkillLoader
+from .task_queue import TaskQueue, Task
+from .xmpp_client import XMPPClient
+
+logger = logging.getLogger(__name__)
+
+
+class AgentContext:
+    """Contexte passé aux skills lors de leur exécution."""
+    def __init__(self, agent: "BaseAgent", current_task: Optional[Task] = None,
+                 current_message: Optional[Message] = None):
+        self.agent = agent
+        self.task = current_task
+        self.message = current_message
+
+    @property
+    def mqtt(self) -> MQTTClient:
+        return self.agent.mqtt
+
+    @property
+    def xmpp(self) -> Optional[XMPPClient]:
+        return self.agent.xmpp
+
+    @property
+    def llm(self) -> LLMClient:
+        return self.agent.llm
+
+    @property
+    def registry(self) -> CapabilitiesRegistry:
+        return self.agent.registry
+
+    @property
+    def config(self) -> dict:
+        return self.agent.config
+
+    @property
+    def agent_id(self) -> str:
+        return self.agent.agent_id
+
+
+class BaseAgent(ABC):
+    """
+    Classe mère de tous les agents.
+    Fournit : MQTT, XMPP, LLM, TaskQueue, SkillLoader, CapabilitiesRegistry.
+    """
+
+    # À surcharger dans chaque agent
+    AGENT_TYPE: str = "generic"
+    DESCRIPTION: str = "Agent générique"
+    DEFAULT_CONFIG_PATH: str = "config/config.json"
+
+    def __init__(self, config_path: Optional[str] = None):
+        self.config = self._load_config(config_path or self.DEFAULT_CONFIG_PATH)
+        self.agent_id: str = self.config["agent_id"]
+
+        logging.basicConfig(
+            level=logging.INFO,
+            format=f"%(asctime)s [{self.agent_id}] %(levelname)s %(message)s",
+        )
+
+        # Composants principaux
+        self.mqtt = self._setup_mqtt()
+        self.xmpp: Optional[XMPPClient] = self._setup_xmpp()
+        self.llm = self._setup_llm()
+        self.skills = SkillLoader()
+        self.queue = TaskQueue(self.config.get("queue_db", "queue.db"))
+        self.registry = CapabilitiesRegistry()
+
+        # Agents en ligne (mis à jour via MQTT)
+        self._online_agents: set[str] = set()
+        self._online_lock = threading.Lock()
+
+        self._running = False
+
+    # ──────────────────────────────────────────────
+    # Setup
+    # ──────────────────────────────────────────────
+
+    def _load_config(self, path: str) -> dict:
+        if not os.path.exists(path):
+            raise FileNotFoundError(f"Config introuvable : {path}")
+        with open(path) as f:
+            return json.load(f)
+
+    def _setup_mqtt(self) -> MQTTClient:
+        mc = self.config.get("mqtt", {})
+        return MQTTClient(
+            agent_id=self.config["agent_id"],
+            broker_host=mc.get("host", "localhost"),
+            broker_port=mc.get("port", 1883),
+            username=mc.get("username"),
+            password=mc.get("password"),
+            tls=mc.get("tls", False),
+        )
+
+    def _setup_xmpp(self) -> Optional[XMPPClient]:
+        xc = self.config.get("xmpp")
+        if not xc:
+            return None
+
+        # Supporte admin_jids (list) et admin_jid (str) pour compatibilité
+        admin_jids = xc.get("admin_jids") or []
+        if not admin_jids and xc.get("admin_jid"):
+            admin_jids = [xc["admin_jid"]]
+
+        return XMPPClient(
+            jid=xc["jid"],
+            password=xc["password"],
+            admin_jids=admin_jids,
+            muc_room=xc.get("muc_room"),
+            muc_nick=self.config["agent_id"],
+            use_omemo=xc.get("use_omemo", False),
+        )
+
+    def _setup_llm(self) -> LLMClient:
+        lc = self.config.get("llm", {})
+        return LLMClient(
+            base_url=lc.get("base_url", "http://localhost:11434"),
+            model=lc.get("model", "mistral"),
+            temperature=lc.get("temperature", 0.3),
+            system_prompt=self._load_system_prompt(),
+        )
+
+    def _load_system_prompt(self) -> str:
+        path = self.config.get("system_prompt", "config/system_prompt.txt")
+        if os.path.exists(path):
+            with open(path) as f:
+                return f.read()
+        return self._default_system_prompt()
+
+    def _default_system_prompt(self) -> str:
+        return (
+            f"Tu es {self.agent_id}, un agent IA de type '{self.AGENT_TYPE}'.\n"
+            f"Description : {self.DESCRIPTION}\n"
+            f"Tu communiques via XMPP et MQTT. "
+            f"Tu dois répondre de façon concise et précise.\n"
+            f"Pour exécuter un skill, utilise : SKILL:<nom> ARGS:<arguments>\n"
+        )
+
+    # ──────────────────────────────────────────────
+    # Démarrage
+    # ──────────────────────────────────────────────
+
+    def run(self):
+        """Point d'entrée principal de l'agent."""
+        logger.info(f"Démarrage de {self.agent_id} ({self.AGENT_TYPE})")
+
+        # Chargement des skills
+        skills_dir = self.get_skills_dir()
+        if skills_dir:
+            self.skills.load_directory(skills_dir)
+
+        # Mise à jour du system prompt avec les skills
+        if self.skills.list_names():
+            extra = self.skills.system_prompt_section()
+            self.llm.system_prompt += f"\n\n{extra}"
+
+        # Connexion MQTT
+        self.mqtt.connect()
+        self._setup_mqtt_subscriptions()
+
+        # Publication des capacités
+        self._publish_capabilities()
+
+        # Connexion XMPP
+        if self.xmpp:
+            self.xmpp.set_message_callback(self._on_xmpp_message)
+            self.xmpp.connect_async()
+
+        # Démarrage du worker de tâches
+        self.queue.start_worker(self._execute_task)
+
+        # Hook de démarrage custom
+        self.on_start()
+
+        # Gestion des signaux
+        self._running = True
+        signal.signal(signal.SIGINT, self._shutdown)
+        signal.signal(signal.SIGTERM, self._shutdown)
+
+        logger.info(f"{self.agent_id} prêt.")
+        try:
+            while self._running:
+                time.sleep(1)
+        except KeyboardInterrupt:
+            self._shutdown()
+
+    def _shutdown(self, *args):
+        logger.info(f"Arrêt de {self.agent_id}...")
+        self._running = False
+        self.queue.stop_worker()
+        self.mqtt.disconnect()
+        if self.xmpp:
+            self.xmpp.disconnect()
+        sys.exit(0)
+
+    # ──────────────────────────────────────────────
+    # MQTT — souscriptions
+    # ──────────────────────────────────────────────
+
+    def _setup_mqtt_subscriptions(self):
+        self.mqtt.subscribe_inbox(self._on_mqtt_task)
+        self.mqtt.subscribe_broadcast(self._on_mqtt_broadcast)
+        self.mqtt.subscribe_all_capabilities(self._on_capabilities_update)
+        self.mqtt.subscribe_all_status(self._on_status_update)
+        # Souscriptions custom de l'agent
+        self.setup_extra_subscriptions()
+
+    def _on_mqtt_task(self, msg: Message | str, topic: str):
+        """Réception d'une tâche via MQTT inbox."""
+        if isinstance(msg, str):
+            # Message brut non structuré
+            task_id = self.queue.enqueue(
+                payload=msg,
+                correlation_id="raw",
+                sender="unknown",
+            )
+            return
+
+        if msg.type == MessageType.COMMAND:
+            self._handle_system_command(msg.payload, source_msg=msg)
+            return
+
+        task_id = self.queue.enqueue(
+            payload=msg.payload,
+            correlation_id=msg.correlation_id,
+            sender=msg.sender,
+            reply_to=msg.reply_to,
+        )
+        logger.info(f"Tâche #{task_id} reçue de {msg.sender}")
+
+    def _on_mqtt_broadcast(self, msg: Message | str, topic: str):
+        """Réception d'un broadcast — comportement par défaut : ignorer ou logger."""
+        if isinstance(msg, Message):
+            logger.info(f"Broadcast reçu de {msg.sender}: {str(msg.payload)[:80]}")
+            self.on_broadcast(msg)
+
+    def _on_capabilities_update(self, msg: Message | str, topic: str):
+        """Mise à jour du registre de capacités d'un autre agent."""
+        try:
+            raw = msg if isinstance(msg, (str, bytes)) else msg.payload
+            if isinstance(raw, str):
+                caps = self.registry.update_from_json(raw)
+            elif isinstance(raw, dict):
+                from .capabilities import AgentCapabilities
+                import json as _json
+                caps = self.registry.update_from_json(_json.dumps(raw))
+            else:
+                caps = None
+            if caps and caps.agent_id != self.agent_id:
+                logger.debug(f"Capacités reçues : {caps.agent_id}")
+                # Mise à jour du context LLM
+                self._refresh_llm_context()
+        except Exception as e:
+            logger.debug(f"Erreur parsing capabilities: {e}")
+
+    def _on_status_update(self, msg: Message | str, topic: str):
+        """Mise à jour du statut d'un agent."""
+        try:
+            raw = msg if isinstance(msg, (str, bytes)) else msg.payload
+            if isinstance(raw, str):
+                import json as _json
+                data = _json.loads(raw)
+            elif isinstance(raw, dict):
+                data = raw
+            else:
+                return
+            agent_id = data.get("agent_id")
+            status = data.get("status")
+            if agent_id and status:
+                with self._online_lock:
+                    if status == "online":
+                        self._online_agents.add(agent_id)
+                    else:
+                        self._online_agents.discard(agent_id)
+        except Exception:
+            pass
+
+    # ──────────────────────────────────────────────
+    # Traitement des tâches
+    # ──────────────────────────────────────────────
+
+    def _execute_task(self, task: Task) -> tuple[str, bool]:
+        """Exécute une tâche via le LLM + skills. Retourne (résultat, succès)."""
+        context = AgentContext(self, current_task=task)
+
+        # Enrichir le LLM avec le contexte actuel
+        extra_ctx = self.registry.summary_for_llm(self._online_agents)
+
+        result = self._llm_loop(task.payload, context, extra_ctx)
+
+        # Renvoyer le résultat à l'expéditeur
+        if task.sender and task.sender != "unknown":
+            import uuid
+            dummy_msg = Message(
+                msg_type=MessageType.TASK,
+                payload=task.payload,
+                sender=task.sender,
+                correlation_id=task.correlation_id,
+                reply_to=task.reply_to,
+            )
+            dummy_msg.id = task.correlation_id
+            self.mqtt.reply(dummy_msg, result)
+
+        return result, True
+
+    def _llm_loop(self, prompt: str, context: AgentContext,
+                  extra_ctx: Optional[str] = None, max_steps: int = 10) -> str:
+        """Boucle LLM avec exécution de skills."""
+        response = self.llm.chat(prompt, extra_context=extra_ctx)
+
+        for _ in range(max_steps):
+            skill_call = self.llm.extract_skill_call(response)
+            if not skill_call:
+                break
+            skill_name, args = skill_call
+            skill_result = self.skills.run(skill_name, args, context)
+            logger.info(f"[{self.agent_id}] Skill {skill_name} → {str(skill_result)[:80]}")
+            response = self.llm.chat(
+                f"Résultat du skill '{skill_name}':\n{skill_result}\n\nContinue ou donne ta réponse finale."
+            )
+
+        return response
+
+    # ──────────────────────────────────────────────
+    # XMPP
+    # ──────────────────────────────────────────────
+
+    def _on_xmpp_message(self, sender: str, body: str, is_muc: bool = False):
+        """Traitement des messages XMPP entrants."""
+        cmd = parse_command(body)
+        context = AgentContext(self)
+
+        if cmd.type == CommandType.SYSTEM:
+            reply = self._handle_system_command(f"/{cmd.command} {cmd.args}", raw_cmd=cmd)
+            if reply and self.xmpp:
+                self.xmpp.send_message(sender, reply)
+            return
+
+        if cmd.type == CommandType.DIRECT:
+            # @agent_name message → router via MQTT
+            reply = self._route_direct_command(cmd)
+            if reply and self.xmpp:
+                self.xmpp.send_message(sender, reply)
+            return
+
+        if cmd.type == CommandType.BROADCAST:
+            msg = self.mqtt.broadcast(cmd.args or "")
+            if self.xmpp:
+                self.xmpp.send_message(sender, f"Broadcast envoyé à tous les agents.")
+            return
+
+        # Mode naturel → LLM
+        extra_ctx = self.registry.summary_for_llm(self._online_agents)
+        response = self._llm_loop(body, context, extra_ctx)
+        if self.xmpp:
+            self.xmpp.send_message(sender, response)
+
+    def _route_direct_command(self, cmd: ParsedCommand) -> str:
+        """Route un @agent commande vers l'agent cible via MQTT."""
+        target = cmd.target
+        message = cmd.args or ""
+
+        caps = self.registry.get(target)
+        if caps is None:
+            return f"Agent '{target}' inconnu. Agents connus : {[a.agent_id for a in self.registry.all_agents()]}"
+
+        self.mqtt.send_to(target, message)
+        return f"Message envoyé à {target}."
+
+    # ──────────────────────────────────────────────
+    # Commandes système
+    # ──────────────────────────────────────────────
+
+    def _handle_system_command(self, text: str, source_msg: Optional[Message] = None,
+                                raw_cmd: Optional[ParsedCommand] = None) -> Optional[str]:
+        """Gère les commandes /xxx."""
+        if raw_cmd is None:
+            raw_cmd = parse_command(text)
+        cmd = raw_cmd.command
+        args = (raw_cmd.args or "").strip()
+
+        if cmd == "help":
+            return help_text()
+
+        if cmd == "pause":
+            self.queue.pause()
+            return f"[{self.agent_id}] En pause."
+
+        if cmd == "resume":
+            self.queue.resume()
+            return f"[{self.agent_id}] Reprise."
+
+        if cmd == "reset":
+            self.llm.reset_history()
+            return f"[{self.agent_id}] Historique effacé."
+
+        if cmd == "status":
+            stats = self.queue.daily_stats()
+            paused = "OUI" if self.queue.is_paused else "NON"
+            return (
+                f"[{self.agent_id}] Statut\n"
+                f"  En pause : {paused}\n"
+                f"  Tâches aujourd'hui : {stats['total']} "
+                f"(OK:{stats['completed']} ERR:{stats['failed']} ATT:{stats['pending']})\n"
+                f"  Durée moyenne : {stats['avg_duration_s']}s"
+            )
+
+        if cmd == "agents":
+            with self._online_lock:
+                online = list(self._online_agents)
+            all_agents = [a.agent_id for a in self.registry.all_agents()]
+            return f"Agents en ligne : {online}\nAgents connus : {all_agents}"
+
+        # Commandes custom de l'agent
+        return self.handle_custom_command(cmd, args, source_msg)
+
+    # ──────────────────────────────────────────────
+    # Capacités
+    # ──────────────────────────────────────────────
+
+    def _publish_capabilities(self):
+        """Publie les capacités de cet agent (retained)."""
+        xmpp_cfg = self.config.get("xmpp", {})
+        caps = AgentCapabilities(
+            agent_id=self.agent_id,
+            agent_type=self.AGENT_TYPE,
+            description=self.DESCRIPTION,
+            skills=self.skills.capabilities_summary(),
+            xmpp_jid=xmpp_cfg.get("jid"),
+            xmpp_muc=xmpp_cfg.get("muc_room"),
+            mqtt_inbox=self.mqtt.topic_inbox(),
+            can_send_xmpp=self.xmpp is not None,
+            can_send_mqtt=True,
+            work_hours=self.config.get("work_hours", "00:00-23:59"),
+        )
+        self.mqtt.publish_capabilities(caps.to_dict())
+        # S'enregistre aussi dans son propre registre
+        self.registry.update(caps)
+        logger.info(f"Capacités publiées : {len(caps.skills)} skill(s)")
+
+    def _refresh_llm_context(self):
+        """Met à jour le context LLM avec les agents connus."""
+        # Injecté dynamiquement à chaque appel LLM via extra_context
+        pass
+
+    # ──────────────────────────────────────────────
+    # Méthodes à implémenter / surcharger
+    # ──────────────────────────────────────────────
+
+    @abstractmethod
+    def get_skills_dir(self) -> Optional[str]:
+        """Retourne le chemin vers le dossier skills de cet agent."""
+        ...
+
+    def on_start(self):
+        """Hook appelé après le démarrage complet. Surcharger si besoin."""
+        pass
+
+    def on_broadcast(self, msg: Message):
+        """Hook appelé à la réception d'un broadcast. Surcharger si besoin."""
+        pass
+
+    def setup_extra_subscriptions(self):
+        """Souscriptions MQTT supplémentaires. Surcharger si besoin."""
+        pass
+
+    def handle_custom_command(self, cmd: str, args: str,
+                               source_msg: Optional[Message] = None) -> Optional[str]:
+        """Commandes /xxx non reconnues par la base. Surcharger si besoin."""
+        return f"Commande inconnue : /{cmd}. Tape /help pour l'aide."

build/lib/agents_core/capabilities.py

@@ -0,0 +1,108 @@
+"""
+Gestion des capacités — chaque agent sait ce qu'il peut faire
+et connaît les autres agents via les messages MQTT retained.
+"""
+import json
+import logging
+import threading
+from dataclasses import dataclass, field, asdict
+from typing import Optional
+
+logger = logging.getLogger(__name__)
+
+
+@dataclass
+class AgentCapabilities:
+    agent_id: str
+    agent_type: str                  # nexus | debian | ansible | deploy | custom
+    description: str
+    skills: list[dict]               # [{"name": ..., "description": ..., "usage": ...}]
+    xmpp_jid: Optional[str] = None
+    xmpp_muc: Optional[str] = None
+    mqtt_inbox: str = ""
+    can_send_xmpp: bool = False
+    can_send_mqtt: bool = True
+    work_hours: str = "00:00-23:59"
+    version: str = "2.0"
+
+    def to_dict(self) -> dict:
+        return asdict(self)
+
+    def to_json(self) -> str:
+        return json.dumps(self.to_dict(), ensure_ascii=False)
+
+    @classmethod
+    def from_json(cls, data: str | bytes) -> "AgentCapabilities":
+        d = json.loads(data)
+        return cls(**{k: v for k, v in d.items() if k in cls.__dataclass_fields__})
+
+    def summary_for_llm(self) -> str:
+        """Résumé compact pour injection dans le system prompt."""
+        skill_names = [s["name"] for s in self.skills]
+        xmpp = f", XMPP: {self.xmpp_jid}" if self.xmpp_jid else ""
+        return (
+            f"  [{self.agent_id}] ({self.agent_type}) — {self.description}\n"
+            f"    Skills: {', '.join(skill_names) or 'aucun'}\n"
+            f"    Inbox MQTT: {self.mqtt_inbox}{xmpp}\n"
+            f"    Horaires: {self.work_hours}"
+        )
+
+
+class CapabilitiesRegistry:
+    """
+    Registre local des capacités de tous les agents connus.
+    Mis à jour en temps réel via les messages MQTT retained.
+    """
+    def __init__(self):
+        self._agents: dict[str, AgentCapabilities] = {}
+        self._lock = threading.Lock()
+
+    def update(self, caps: AgentCapabilities):
+        with self._lock:
+            self._agents[caps.agent_id] = caps
+        logger.debug(f"[Registry] Capacités mises à jour pour {caps.agent_id}")
+
+    def update_from_json(self, data: str | bytes) -> Optional[AgentCapabilities]:
+        if not data or (isinstance(data, (str, bytes)) and not data.strip()):
+            return None  # Empty retained message — ignore silently
+        try:
+            caps = AgentCapabilities.from_json(data)
+            self.update(caps)
+            return caps
+        except Exception as e:
+            logger.error(f"[Registry] Erreur parsing capacités: {e}")
+            return None
+
+    def get(self, agent_id: str) -> Optional[AgentCapabilities]:
+        with self._lock:
+            return self._agents.get(agent_id)
+
+    def all_agents(self) -> list[AgentCapabilities]:
+        with self._lock:
+            return list(self._agents.values())
+
+    def online_agents(self, online_ids: set[str]) -> list[AgentCapabilities]:
+        with self._lock:
+            return [a for a in self._agents.values() if a.agent_id in online_ids]
+
+    def summary_for_llm(self, online_ids: Optional[set[str]] = None) -> str:
+        """Génère la section du system prompt listant les agents connus."""
+        with self._lock:
+            agents = self._agents.values()
+        if not agents:
+            return "Aucun agent enregistré."
+        lines = ["## Agents disponibles\n"]
+        for a in agents:
+            status = ""
+            if online_ids is not None:
+                status = " [EN LIGNE]" if a.agent_id in online_ids else " [HORS LIGNE]"
+            lines.append(f"{a.summary_for_llm()}{status}")
+        return "\n".join(lines)
+
+    def find_capable_agent(self, skill_name: str) -> Optional[AgentCapabilities]:
+        """Trouve un agent capable d'exécuter un skill donné."""
+        with self._lock:
+            for agent in self._agents.values():
+                if any(s["name"] == skill_name for s in agent.skills):
+                    return agent
+        return None

build/lib/agents_core/command_parser.py

@@ -0,0 +1,108 @@
+"""
+Parseur de commandes — supporte deux modes :
+  - Mode commande rapide : @agent message  ou  /commande [args]
+  - Mode naturel         : tout le reste → LLM
+
+Syntaxe :
+  @agent_name <message>   → message direct à l'agent nommé
+  @all <message>          → broadcast à tous les agents
+  /pause [agent]          → mettre en pause un agent (ou tous)
+  /resume [agent]         → reprendre un agent (ou tous)
+  /status [agent]         → statut d'un agent
+  /reset [agent]          → effacer l'historique LLM
+  /schedule ...           → gérer les tâches planifiées
+  /help                   → aide
+"""
+from dataclasses import dataclass
+from typing import Optional
+
+
+class CommandType:
+    NATURAL = "natural"         # Traitement par le LLM
+    DIRECT = "direct"           # @agent message
+    BROADCAST = "broadcast"     # @all message
+    SYSTEM = "system"           # /commande
+
+
+@dataclass
+class ParsedCommand:
+    type: str
+    target: Optional[str]       # agent_id pour DIRECT, None pour BROADCAST/SYSTEM/NATURAL
+    command: Optional[str]      # nom de la commande système
+    args: Optional[str]         # arguments
+    raw: str                    # texte original
+
+
+def parse(text: str) -> ParsedCommand:
+    """Parse un message entrant et retourne sa nature."""
+    text = text.strip()
+
+    # ── Mode commande directe : @agent_name message
+    if text.startswith("@"):
+        parts = text[1:].split(None, 1)
+        target = parts[0].lower()
+        message = parts[1] if len(parts) > 1 else ""
+        if target == "all":
+            return ParsedCommand(
+                type=CommandType.BROADCAST,
+                target=None,
+                command=None,
+                args=message,
+                raw=text,
+            )
+        return ParsedCommand(
+            type=CommandType.DIRECT,
+            target=target,
+            command=None,
+            args=message,
+            raw=text,
+        )
+
+    # ── Mode commande système : /commande [args]
+    if text.startswith("/"):
+        parts = text[1:].split(None, 1)
+        command = parts[0].lower()
+        args = parts[1] if len(parts) > 1 else ""
+        return ParsedCommand(
+            type=CommandType.SYSTEM,
+            target=None,
+            command=command,
+            args=args,
+            raw=text,
+        )
+
+    # ── Mode naturel — tout le reste
+    return ParsedCommand(
+        type=CommandType.NATURAL,
+        target=None,
+        command=None,
+        args=text,
+        raw=text,
+    )
+
+
+# Commandes système reconnues et leur aide
+SYSTEM_COMMANDS_HELP = {
+    "pause":    "/pause [agent]        — Mettre en pause un agent ou tous",
+    "resume":   "/resume [agent]       — Reprendre un agent ou tous",
+    "status":   "/status [agent]       — Voir le statut des agents",
+    "reset":    "/reset [agent]        — Effacer l'historique LLM",
+    "schedule": "/schedule ...         — Gérer les tâches planifiées",
+    "agents":   "/agents               — Lister les agents en ligne",
+    "help":     "/help                 — Afficher cette aide",
+}
+
+
+def help_text() -> str:
+    lines = [
+        "── Aide commandes ──────────────────",
+        "Mode direct :",
+        "  @<agent> <message>   → Envoyer un message à un agent",
+        "  @all <message>       → Broadcast à tous les agents",
+        "",
+        "Mode système :",
+    ]
+    lines.extend(f"  {v}" for v in SYSTEM_COMMANDS_HELP.values())
+    lines.append("")
+    lines.append("Mode naturel : écris simplement ce que tu veux faire.")
+    return "\n".join(lines)

build/lib/agents_core/llm_client.py

@@ -0,0 +1,95 @@
+"""
+Wrapper Ollama — interface unifiée pour le LLM local.
+"""
+import json
+import logging
+import requests
+from typing import Optional
+
+logger = logging.getLogger(__name__)
+
+DEFAULT_TIMEOUT = 120
+MAX_HISTORY = 20  # messages conservés dans le contexte
+
+
+class LLMClient:
+    def __init__(self, base_url: str, model: str, temperature: float = 0.3,
+                 system_prompt: str = ""):
+        self.base_url = base_url.rstrip("/")
+        self.model = model
+        self.temperature = temperature
+        self.system_prompt = system_prompt
+        self._history: list[dict] = []
+
+    def chat(self, user_message: str, extra_context: Optional[str] = None) -> str:
+        """Envoie un message et retourne la réponse du LLM."""
+        messages = []
+
+        # System prompt enrichi avec contexte dynamique si fourni
+        system = self.system_prompt
+        if extra_context:
+            system = f"{system}\n\n[CONTEXTE ACTUEL]\n{extra_context}"
+        if system:
+            messages.append({"role": "system", "content": system})
+
+        # Historique tronqué
+        messages.extend(self._history[-MAX_HISTORY:])
+        messages.append({"role": "user", "content": user_message})
+
+        try:
+            resp = requests.post(
+                f"{self.base_url}/api/chat",
+                json={
+                    "model": self.model,
+                    "messages": messages,
+                    "stream": False,
+                    "options": {"temperature": self.temperature},
+                },
+                timeout=DEFAULT_TIMEOUT,
+            )
+            resp.raise_for_status()
+            assistant_msg = resp.json()["message"]["content"]
+
+            # Mise à jour de l'historique
+            self._history.append({"role": "user", "content": user_message})
+            self._history.append({"role": "assistant", "content": assistant_msg})
+
+            return assistant_msg
+
+        except requests.exceptions.Timeout:
+            logger.error("LLM timeout")
+            return "Erreur : le LLM n'a pas répondu dans les temps."
+        except Exception as e:
+            logger.error(f"Erreur LLM: {e}")
+            return f"Erreur LLM: {e}"
+
+    def reset_history(self):
+        """Efface l'historique de conversation."""
+        self._history.clear()
+        logger.info("Historique LLM effacé")
+
+    def extract_skill_call(self, llm_response: str) -> Optional[tuple[str, str]]:
+        """
+        Extrait un appel de skill depuis la réponse du LLM.
+        Format attendu : SKILL:nom_skill ARGS:arguments
+        Retourne (skill_name, args) ou None.
+        """
+        for line in llm_response.splitlines():
+            line = line.strip()
+            if line.startswith("SKILL:"):
+                parts = line.split(" ARGS:", 1)
+                skill_name = parts[0].replace("SKILL:", "").strip()
+                args = parts[1].strip() if len(parts) > 1 else ""
+                return skill_name, args
+        return None
+
+    def extract_json_block(self, text: str) -> Optional[dict]:
+        """Extrait un bloc JSON depuis la réponse du LLM."""
+        start = text.find("{")
+        end = text.rfind("}") + 1
+        if start >= 0 and end > start:
+            try:
+                return json.loads(text[start:end])
+            except json.JSONDecodeError:
+                pass
+        return None

build/lib/agents_core/message_bus.py

@@ -0,0 +1,86 @@
+"""
+Message envelope standard pour tout le système.
+Tous les messages MQTT et XMPP utilisent ce format.
+"""
+import uuid
+import json
+from datetime import datetime, timezone
+from typing import Optional, Any
+
+
+class MessageType:
+    TASK = "task"                  # Tâche à exécuter
+    RESULT = "result"              # Résultat d'une tâche
+    STATUS = "status"              # Statut d'un agent
+    BROADCAST = "broadcast"        # Message à tous les agents
+    DIRECT = "direct_message"      # Message direct agent→agent
+    CAPABILITIES = "capabilities"  # Déclaration des capacités
+    ALERT = "alert"                # Alerte proactive d'un agent
+    COMMAND = "command"            # Commande système (/pause, /resume...)
+
+
+class Message:
+    def __init__(
+        self,
+        msg_type: str,
+        payload: Any,
+        sender: str,
+        recipient: Optional[str] = None,
+        correlation_id: Optional[str] = None,
+        reply_to: Optional[str] = None,
+        metadata: Optional[dict] = None,
+    ):
+        self.id = str(uuid.uuid4())
+        self.type = msg_type
+        self.payload = payload
+        self.sender = sender
+        self.recipient = recipient
+        self.correlation_id = correlation_id or self.id
+        self.reply_to = reply_to
+        self.timestamp = datetime.now(timezone.utc).isoformat()
+        self.metadata = metadata or {}
+
+    def to_dict(self) -> dict:
+        return {
+            "id": self.id,
+            "type": self.type,
+            "payload": self.payload,
+            "sender": self.sender,
+            "recipient": self.recipient,
+            "correlation_id": self.correlation_id,
+            "reply_to": self.reply_to,
+            "timestamp": self.timestamp,
+            "metadata": self.metadata,
+        }
+
+    def to_json(self) -> str:
+        return json.dumps(self.to_dict(), ensure_ascii=False)
+
+    @classmethod
+    def from_json(cls, data: str | bytes) -> "Message":
+        d = json.loads(data)
+        msg = cls.__new__(cls)
+        msg.id = d.get("id", str(uuid.uuid4()))
+        msg.type = d.get("type", MessageType.TASK)
+        msg.payload = d.get("payload", "")
+        msg.sender = d.get("sender", "unknown")
+        msg.recipient = d.get("recipient")
+        msg.correlation_id = d.get("correlation_id", msg.id)
+        msg.reply_to = d.get("reply_to")
+        msg.timestamp = d.get("timestamp", datetime.now(timezone.utc).isoformat())
+        msg.metadata = d.get("metadata", {})
+        return msg
+
+    def make_reply(self, sender: str, result: Any, msg_type: str = MessageType.RESULT) -> "Message":
+        """Crée un message de réponse lié à ce message."""
+        return Message(
+            msg_type=msg_type,
+            payload=result,
+            sender=sender,
+            recipient=self.sender,
+            correlation_id=self.correlation_id,
+            reply_to=self.reply_to,
+        )
+
+    def __repr__(self):
+        return f"<Message type={self.type} from={self.sender} to={self.recipient}>"

build/lib/agents_core/mqtt_client.py

@@ -0,0 +1,247 @@
+"""
+Wrapper MQTT enrichi — API simple pour publish/subscribe/reply.
+Gère la reconnexion automatique, le LWT, et les enveloppes de messages.
+"""
+import json
+import logging
+import threading
+import time
+from typing import Callable, Optional
+
+import paho.mqtt.client as mqtt
+
+from .message_bus import Message, MessageType
+
+logger = logging.getLogger(__name__)
+
+
+class MQTTClient:
+    """
+    Client MQTT avec API simplifiée.
+
+    Topics schema:
+      agents/{id}/inbox        → tâches entrantes
+      agents/{id}/status       → online/offline (retained + LWT)
+      agents/{id}/capabilities → skills déclarés (retained)
+      agents/broadcast         → message à tous les agents
+      agents/results/{corr_id} → résultats routés
+    """
+
+    def __init__(self, agent_id: str, broker_host: str, broker_port: int = 1883,
+                 username: Optional[str] = None, password: Optional[str] = None,
+                 tls: bool = False):
+        self.agent_id = agent_id
+        self.broker_host = broker_host
+        self.broker_port = broker_port
+        self._subscriptions: dict[str, Callable] = {}
+        self._connected = threading.Event()
+        self._lock = threading.Lock()
+
+        self.client = mqtt.Client(
+            client_id=agent_id,
+            clean_session=False,
+            protocol=mqtt.MQTTv311,
+        )
+
+        if username:
+            self.client.username_pw_set(username, password)
+
+        if tls:
+            self.client.tls_set()
+
+        # LWT — marque l'agent offline si la connexion est perdue
+        lwt_payload = json.dumps({"agent_id": agent_id, "status": "offline"})
+        self.client.will_set(
+            topic=self.topic_status(),
+            payload=lwt_payload,
+            qos=1,
+            retain=True,
+        )
+
+        self.client.on_connect = self._on_connect
+        self.client.on_disconnect = self._on_disconnect
+        self.client.on_message = self._on_message
+
+    # ──────────────────────────────────────────────
+    # Topics helpers
+    # ──────────────────────────────────────────────
+
+    def topic_inbox(self, agent_id: Optional[str] = None) -> str:
+        return f"agents/{agent_id or self.agent_id}/inbox"
+
+    def topic_status(self, agent_id: Optional[str] = None) -> str:
+        return f"agents/{agent_id or self.agent_id}/status"
+
+    def topic_capabilities(self, agent_id: Optional[str] = None) -> str:
+        return f"agents/{agent_id or self.agent_id}/capabilities"
+
+    def topic_broadcast(self) -> str:
+        return "agents/broadcast"
+
+    def topic_results(self, correlation_id: str) -> str:
+        return f"agents/results/{correlation_id}"
+
+    # ──────────────────────────────────────────────
+    # Connexion
+    # ──────────────────────────────────────────────
+
+    def connect(self):
+        """Connexion au broker avec reconnexion automatique."""
+        self.client.connect_async(self.broker_host, self.broker_port, keepalive=60)
+        self.client.loop_start()
+        if not self._connected.wait(timeout=10):
+            raise ConnectionError(f"Impossible de se connecter au broker MQTT {self.broker_host}:{self.broker_port}")
+        logger.info(f"[{self.agent_id}] Connecté au broker MQTT {self.broker_host}")
+
+    def disconnect(self):
+        self.publish_status("offline")
+        self.client.loop_stop()
+        self.client.disconnect()
+
+    def _on_connect(self, client, userdata, flags, rc):
+        if rc == 0:
+            self._connected.set()
+            self.publish_status("online")
+            # Réabonnement automatique après reconnexion
+            with self._lock:
+                for topic in self._subscriptions:
+                    client.subscribe(topic, qos=1)
+            logger.info(f"[{self.agent_id}] Reconnecté et réabonné à {len(self._subscriptions)} topics")
+        else:
+            logger.error(f"[{self.agent_id}] Échec connexion MQTT, code={rc}")
+
+    def _on_disconnect(self, client, userdata, rc):
+        self._connected.clear()
+        if rc != 0:
+            logger.warning(f"[{self.agent_id}] Déconnecté du broker MQTT (rc={rc}), reconnexion automatique...")
+
+    def _on_message(self, client, userdata, mqtt_msg):
+        topic = mqtt_msg.topic
+        with self._lock:
+            # Cherche le callback exact ou wildcard
+            callback = self._subscriptions.get(topic)
+            if callback is None:
+                for pattern, cb in self._subscriptions.items():
+                    if self._topic_matches(pattern, topic):
+                        callback = cb
+                        break
+
+        if callback is None:
+            logger.debug(f"[{self.agent_id}] Message reçu sur {topic} sans callback")
+            return
+
+        try:
+            msg = Message.from_json(mqtt_msg.payload)
+            callback(msg, topic)
+        except Exception as e:
+            # Payload non-JSON (ex: commande shell brute)
+            logger.debug(f"[{self.agent_id}] Payload non-JSON sur {topic}: {e}")
+            try:
+                callback(mqtt_msg.payload.decode(), topic)
+            except Exception as e2:
+                logger.error(f"[{self.agent_id}] Erreur callback sur {topic}: {e2}")
+
+    @staticmethod
+    def _topic_matches(pattern: str, topic: str) -> bool:
+        """Vérifie si un topic correspond à un pattern MQTT avec wildcards."""
+        p_parts = pattern.split("/")
+        t_parts = topic.split("/")
+        if "#" in p_parts:
+            idx = p_parts.index("#")
+            return p_parts[:idx] == t_parts[:idx]
+        if len(p_parts) != len(t_parts):
+            return False
+        return all(pp == tp or pp == "+" for pp, tp in zip(p_parts, t_parts))
+
+    # ──────────────────────────────────────────────
+    # API publique — Subscribe
+    # ──────────────────────────────────────────────
+
+    def subscribe(self, topic: str, callback: Callable):
+        """S'abonner à un topic avec un callback(message, topic)."""
+        with self._lock:
+            self._subscriptions[topic] = callback
+        self.client.subscribe(topic, qos=1)
+        logger.debug(f"[{self.agent_id}] Abonné à {topic}")
+
+    def subscribe_inbox(self, callback: Callable):
+        """S'abonner à sa propre inbox."""
+        self.subscribe(self.topic_inbox(), callback)
+
+    def subscribe_broadcast(self, callback: Callable):
+        """S'abonner aux messages broadcast."""
+        self.subscribe(self.topic_broadcast(), callback)
+
+    def subscribe_all_capabilities(self, callback: Callable):
+        """S'abonner aux déclarations de capacités de tous les agents."""
+        self.subscribe("agents/+/capabilities", callback)
+
+    def subscribe_all_status(self, callback: Callable):
+        """S'abonner aux statuts de tous les agents."""
+        self.subscribe("agents/+/status", callback)
+
+    # ──────────────────────────────────────────────
+    # API publique — Publish
+    # ──────────────────────────────────────────────
+
+    def publish_raw(self, topic: str, payload: str | bytes | dict, retain: bool = False, qos: int = 1):
+        """Publication brute sur un topic."""
+        if isinstance(payload, dict):
+            payload = json.dumps(payload, ensure_ascii=False)
+        self.client.publish(topic, payload, qos=qos, retain=retain)
+
+    def send_to(self, recipient_id: str, payload: str, msg_type: str = MessageType.TASK,
+                correlation_id: Optional[str] = None, reply_to: Optional[str] = None) -> Message:
+        """Envoyer un message à un agent spécifique via son inbox."""
+        msg = Message(
+            msg_type=msg_type,
+            payload=payload,
+            sender=self.agent_id,
+            recipient=recipient_id,
+            correlation_id=correlation_id,
+            reply_to=reply_to or self.topic_inbox(),
+        )
+        self.publish_raw(self.topic_inbox(recipient_id), msg.to_json())
+        logger.info(f"[{self.agent_id}] → {recipient_id}: {str(payload)[:80]}")
+        return msg
+
+    def reply(self, original: Message, result: str, msg_type: str = MessageType.RESULT):
+        """Répondre à un message reçu (utilise reply_to ou inbox du sender)."""
+        reply_msg = original.make_reply(self.agent_id, result, msg_type)
+        target_topic = original.reply_to or self.topic_inbox(original.sender)
+        self.publish_raw(target_topic, reply_msg.to_json())
+        logger.info(f"[{self.agent_id}] ↩ {original.sender}: {str(result)[:80]}")
+        return reply_msg
+
+    def broadcast(self, payload: str, msg_type: str = MessageType.BROADCAST) -> Message:
+        """Envoyer un message à tous les agents."""
+        msg = Message(
+            msg_type=msg_type,
+            payload=payload,
+            sender=self.agent_id,
+        )
+        self.publish_raw(self.topic_broadcast(), msg.to_json())
+        return msg
+
+    def alert(self, message: str, severity: str = "warning"):
+        """Envoyer une alerte proactive à l'orchestrateur."""
+        # Cherche le nexus dans les agents connus ou utilise un topic dédié
+        msg = Message(
+            msg_type=MessageType.ALERT,
+            payload=message,
+            sender=self.agent_id,
+            metadata={"severity": severity},
+        )
+        # On publie sur l'inbox de l'orchestrateur (nom configurable)
+        self.publish_raw("agents/nexus/inbox", msg.to_json())
+
+    def publish_status(self, status: str, extra: Optional[dict] = None):
+        """Publier le statut de l'agent (retained)."""
+        payload = {"agent_id": self.agent_id, "status": status}
+        if extra:
+            payload.update(extra)
+        self.publish_raw(self.topic_status(), payload, retain=True)
+
+    def publish_capabilities(self, capabilities: dict):
+        """Publier les capacités de l'agent (retained)."""
+        self.publish_raw(self.topic_capabilities(), capabilities, retain=True)

build/lib/agents_core/skill_loader.py

@@ -0,0 +1,99 @@
+"""
+Système de chargement de skills (plugins).
+Chaque skill est un module Python avec une fonction run(args, context) → str.
+"""
+import importlib.util
+import logging
+import os
+from typing import Optional
+
+logger = logging.getLogger(__name__)
+
+
+class Skill:
+    def __init__(self, name: str, description: str, usage: str, module):
+        self.name = name
+        self.description = description
+        self.usage = usage
+        self._module = module
+
+    def run(self, args: str, context: "AgentContext") -> str:
+        try:
+            return self._module.run(args, context)
+        except Exception as e:
+            logger.error(f"[Skill:{self.name}] Erreur: {e}", exc_info=True)
+            return f"Erreur dans le skill '{self.name}': {e}"
+
+
+class SkillLoader:
+    def __init__(self):
+        self._skills: dict[str, Skill] = {}
+
+    def load_directory(self, skills_dir: str):
+        """Charge tous les skills d'un dossier."""
+        if not os.path.isdir(skills_dir):
+            logger.warning(f"Dossier skills introuvable : {skills_dir}")
+            return
+
+        for filename in sorted(os.listdir(skills_dir)):
+            if filename.startswith("_") or not filename.endswith(".py"):
+                continue
+            skill_name = filename[:-3]
+            skill_path = os.path.join(skills_dir, filename)
+            self._load_skill(skill_name, skill_path)
+
+        logger.info(f"[SkillLoader] {len(self._skills)} skill(s) chargé(s) : {list(self._skills.keys())}")
+
+    def _load_skill(self, name: str, path: str):
+        try:
+            spec = importlib.util.spec_from_file_location(name, path)
+            module = importlib.util.module_from_spec(spec)
+            spec.loader.exec_module(module)
+
+            # Vérifie les attributs requis
+            if not hasattr(module, "run"):
+                logger.warning(f"[SkillLoader] {name} ignoré : pas de fonction run()")
+                return
+
+            description = getattr(module, "DESCRIPTION", "Pas de description")
+            usage = getattr(module, "USAGE", f"SKILL:{name} ARGS:<arguments>")
+
+            self._skills[name] = Skill(name, description, usage, module)
+            logger.debug(f"[SkillLoader] Skill chargé : {name}")
+
+        except Exception as e:
+            logger.error(f"[SkillLoader] Erreur chargement skill {name}: {e}")
+
+    def get(self, name: str) -> Optional[Skill]:
+        return self._skills.get(name)
+
+    def run(self, name: str, args: str, context) -> str:
+        skill = self.get(name)
+        if skill is None:
+            return f"Skill inconnu : '{name}'. Skills disponibles : {self.list_names()}"
+        return skill.run(args, context)
+
+    def list_names(self) -> list[str]:
+        return list(self._skills.keys())
+
+    def capabilities_summary(self) -> list[dict]:
+        """Retourne la liste des skills pour la déclaration de capacités."""
+        return [
+            {"name": s.name, "description": s.description, "usage": s.usage}
+            for s in self._skills.values()
+        ]
+
+    def system_prompt_section(self) -> str:
+        """Génère la section du system prompt décrivant les skills disponibles."""
+        if not self._skills:
+            return ""
+        lines = ["## Skills disponibles\n"]
+        for s in self._skills.values():
+            lines.append(f"- **{s.name}** : {s.description}")
+            lines.append(f"  Usage : `{s.usage}`")
+        lines.append(
+            "\nPour utiliser un skill, réponds avec une ligne au format :\n"
+            "`SKILL:<nom> ARGS:<arguments>`\n"
+            "Tu peux enchaîner plusieurs skills. Explique brièvement ce que tu fais."
+        )
+        return "\n".join(lines)

build/lib/agents_core/task_queue.py

@@ -0,0 +1,183 @@
+"""
+File d'attente de tâches persistante (SQLite).
+Commune à tous les agents — FIFO avec pause/reprise.
+"""
+import sqlite3
+import threading
+import logging
+import time
+from datetime import datetime, timezone
+from typing import Optional, Callable
+
+logger = logging.getLogger(__name__)
+
+
+class TaskStatus:
+    PENDING = "pending"
+    IN_PROGRESS = "in_progress"
+    COMPLETED = "completed"
+    FAILED = "failed"
+    SKIPPED = "skipped"
+
+
+class Task:
+    def __init__(self, task_id: int, payload: str, correlation_id: str,
+                 sender: str, reply_to: Optional[str], received_at: str):
+        self.id = task_id
+        self.payload = payload
+        self.correlation_id = correlation_id
+        self.sender = sender
+        self.reply_to = reply_to
+        self.received_at = received_at
+
+
+class TaskQueue:
+    def __init__(self, db_path: str):
+        self.db_path = db_path
+        self._paused = False
+        self._running = False
+        self._worker_thread: Optional[threading.Thread] = None
+        self._lock = threading.Lock()
+        self._init_db()
+
+    def _init_db(self):
+        with self._connect() as conn:
+            conn.execute("""
+                CREATE TABLE IF NOT EXISTS tasks (
+                    id              INTEGER PRIMARY KEY AUTOINCREMENT,
+                    received_at     TEXT NOT NULL,
+                    started_at      TEXT,
+                    completed_at    TEXT,
+                    payload         TEXT NOT NULL,
+                    correlation_id  TEXT NOT NULL,
+                    sender          TEXT NOT NULL,
+                    reply_to        TEXT,
+                    status          TEXT NOT NULL DEFAULT 'pending',
+                    result          TEXT,
+                    duration_s      REAL
+                )
+            """)
+
+    def _connect(self) -> sqlite3.Connection:
+        conn = sqlite3.connect(self.db_path, check_same_thread=False)
+        conn.row_factory = sqlite3.Row
+        return conn
+
+    def enqueue(self, payload: str, correlation_id: str, sender: str,
+                reply_to: Optional[str] = None) -> int:
+        now = datetime.now(timezone.utc).isoformat()
+        with self._connect() as conn:
+            cur = conn.execute(
+                "INSERT INTO tasks (received_at, payload, correlation_id, sender, reply_to, status) "
+                "VALUES (?, ?, ?, ?, ?, ?)",
+                (now, payload, correlation_id, sender, reply_to, TaskStatus.PENDING)
+            )
+            task_id = cur.lastrowid
+        logger.info(f"[TaskQueue] Tâche #{task_id} en file (sender={sender})")
+        return task_id
+
+    def _next_task(self) -> Optional[Task]:
+        with self._connect() as conn:
+            row = conn.execute(
+                "SELECT * FROM tasks WHERE status = ? ORDER BY id LIMIT 1",
+                (TaskStatus.PENDING,)
+            ).fetchone()
+            if row is None:
+                return None
+            conn.execute(
+                "UPDATE tasks SET status = ?, started_at = ? WHERE id = ?",
+                (TaskStatus.IN_PROGRESS, datetime.now(timezone.utc).isoformat(), row["id"])
+            )
+        return Task(
+            task_id=row["id"],
+            payload=row["payload"],
+            correlation_id=row["correlation_id"],
+            sender=row["sender"],
+            reply_to=row["reply_to"],
+            received_at=row["received_at"],
+        )
+
+    def complete(self, task_id: int, result: str, success: bool = True):
+        now = datetime.now(timezone.utc).isoformat()
+        status = TaskStatus.COMPLETED if success else TaskStatus.FAILED
+        with self._connect() as conn:
+            row = conn.execute("SELECT started_at FROM tasks WHERE id = ?", (task_id,)).fetchone()
+            duration = None
+            if row and row["started_at"]:
+                try:
+                    started = datetime.fromisoformat(row["started_at"])
+                    duration = (datetime.now(timezone.utc) - started).total_seconds()
+                except Exception:
+                    pass
+            conn.execute(
+                "UPDATE tasks SET status = ?, completed_at = ?, result = ?, duration_s = ? WHERE id = ?",
+                (status, now, result[:4000], duration, task_id)
+            )
+        logger.info(f"[TaskQueue] Tâche #{task_id} {'terminée' if success else 'échouée'} en {duration:.1f}s" if duration else f"[TaskQueue] Tâche #{task_id} {status}")
+
+    def pause(self):
+        with self._lock:
+            self._paused = True
+        logger.info("[TaskQueue] En pause")
+
+    def resume(self):
+        with self._lock:
+            self._paused = False
+        logger.info("[TaskQueue] Reprise")
+
+    @property
+    def is_paused(self) -> bool:
+        with self._lock:
+            return self._paused
+
+    def start_worker(self, handler: Callable[[Task], tuple[str, bool]]):
+        """
+        Lance le worker en arrière-plan.
+        handler(task) → (result_str, success_bool)
+        """
+        self._running = True
+        self._worker_thread = threading.Thread(
+            target=self._worker_loop,
+            args=(handler,),
+            daemon=True,
+            name="task-queue-worker",
+        )
+        self._worker_thread.start()
+
+    def stop_worker(self):
+        self._running = False
+
+    def _worker_loop(self, handler: Callable):
+        while self._running:
+            if self.is_paused:
+                time.sleep(1)
+                continue
+            task = self._next_task()
+            if task is None:
+                time.sleep(0.5)
+                continue
+            try:
+                result, success = handler(task)
+            except Exception as e:
+                result, success = str(e), False
+            self.complete(task.id, result, success)
+
+    def daily_stats(self) -> dict:
+        today = datetime.now(timezone.utc).date().isoformat()
+        with self._connect() as conn:
+            rows = conn.execute(
+                "SELECT status, duration_s FROM tasks WHERE DATE(received_at) = ?", (today,)
+            ).fetchall()
+        total = len(rows)
+        completed = sum(1 for r in rows if r["status"] == TaskStatus.COMPLETED)
+        failed = sum(1 for r in rows if r["status"] == TaskStatus.FAILED)
+        durations = [r["duration_s"] for r in rows if r["duration_s"] is not None]
+        avg_duration = sum(durations) / len(durations) if durations else 0
+        return {
+            "date": today,
+            "total": total,
+            "completed": completed,
+            "failed": failed,
+            "pending": total - completed - failed,
+            "avg_duration_s": round(avg_duration, 2),
+        }

build/lib/agents_core/xmpp_client.py

@@ -0,0 +1,229 @@
+"""
+Client XMPP avec support OMEMO, MUC (groupe), messages directs, et multi-utilisateurs.
+"""
+import logging
+import threading
+from typing import Callable, Optional
+
+from slixmpp import ClientXMPP
+
+logger = logging.getLogger(__name__)
+
+
+class XMPPClient:
+    """
+    Client XMPP simplifié avec :
+      - Messages directs (1-to-1)
+      - Groupes MUC (Multi-User Chat)
+      - OMEMO (si slixmpp-omemo installé)
+      - Multi-utilisateurs : liste de JIDs autorisés à envoyer des commandes
+      - Callback unique pour les messages entrants
+    """
+
+    def __init__(
+        self,
+        jid: str,
+        password: str,
+        admin_jids: Optional[list[str]] = None,
+        muc_room: Optional[str] = None,
+        muc_nick: Optional[str] = None,
+        use_omemo: bool = False,
+    ):
+        self.jid       = jid
+        self.password  = password
+        self.muc_room  = muc_room
+        self.muc_nick  = muc_nick or jid.split("@")[0]
+        self.use_omemo = use_omemo
+
+        # Normalise : accepte str ou list, stocke toujours un set de bare JIDs
+        if admin_jids is None:
+            self.admin_jids: set[str] = set()
+        elif isinstance(admin_jids, str):
+            self.admin_jids = {admin_jids.lower().split("/")[0]} if admin_jids else set()
+        else:
+            self.admin_jids = {j.lower().split("/")[0] for j in admin_jids if j}
+
+        # Rétro-compat : admin_jid pointe vers le premier JID
+        self.admin_jid: Optional[str] = next(iter(self.admin_jids), None)
+
+        self._message_callback: Optional[Callable] = None
+        self._client: Optional[_SlixClient] = None
+        self._thread: Optional[threading.Thread] = None
+        self._connected = threading.Event()
+
+    # ──────────────────────────────────────────────
+    # API publique
+    # ──────────────────────────────────────────────
+
+    def set_message_callback(self, callback: Callable[[str, str, bool], None]):
+        """
+        Définit le callback pour les messages reçus.
+        callback(sender_jid, body, is_muc)
+        Seuls les messages de admin_jids sont transmis (+ MUC).
+        """
+        self._message_callback = callback
+
+    def is_authorized(self, jid: str) -> bool:
+        """Vérifie si un JID est autorisé à envoyer des commandes."""
+        if not self.admin_jids:
+            return True  # Aucun filtre configuré → tout le monde
+        bare = jid.lower().split("/")[0]
+        return bare in self.admin_jids
+
+    def connect_async(self):
+        """Connexion XMPP dans un thread dédié."""
+        self._client = _SlixClient(
+            jid=self.jid,
+            password=self.password,
+            muc_room=self.muc_room,
+            muc_nick=self.muc_nick,
+            use_omemo=self.use_omemo,
+            on_message=self._on_message,
+            on_connected=self._connected.set,
+        )
+        self._thread = threading.Thread(
+            target=self._client.start,
+            daemon=True,
+            name="xmpp-client",
+        )
+        self._thread.start()
+        threading.Thread(target=self._wait_and_log, daemon=True).start()
+
+    def _wait_and_log(self):
+        if self._connected.wait(timeout=30):
+            logger.info(f"[XMPP] Connecté : {self.jid}")
+            if self.muc_room:
+                logger.info(f"[XMPP] Groupe rejoint : {self.muc_room}")
+            if self.admin_jids:
+                logger.info(f"[XMPP] Admins autorisés : {', '.join(sorted(self.admin_jids))}")
+        else:
+            logger.warning("[XMPP] Timeout connexion")
+
+    def _on_message(self, sender: str, body: str, is_muc: bool):
+        """Filtre les messages : seuls les admins sont traités (sauf MUC)."""
+        if not is_muc and not self.is_authorized(sender):
+            logger.debug(f"[XMPP] Message ignoré (non autorisé) : {sender}")
+            return
+        if self._message_callback:
+            try:
+                self._message_callback(sender, body, is_muc)
+            except Exception as e:
+                logger.error(f"[XMPP] Erreur callback : {e}")
+
+    def send_message(self, to: str, body: str, is_muc: bool = False):
+        """Envoie un message XMPP (direct ou MUC)."""
+        if self._client is None:
+            logger.warning("[XMPP] Client non initialisé")
+            return
+        self._client.send_xmpp_message(to, body, is_muc)
+
+    def send_to_all_admins(self, body: str):
+        """Envoie un message à tous les admins."""
+        for jid in self.admin_jids:
+            self.send_message(jid, body)
+
+    def send_to_admin(self, body: str):
+        """Envoie au premier admin (rétro-compat)."""
+        if self.admin_jid:
+            self.send_message(self.admin_jid, body)
+
+    def send_to_group(self, body: str):
+        """Envoie dans le groupe MUC."""
+        if self.muc_room:
+            self.send_message(self.muc_room, body, is_muc=True)
+
+    def add_admin(self, jid: str):
+        """Ajoute un JID autorisé à la volée."""
+        bare = jid.lower().split("/")[0]
+        self.admin_jids.add(bare)
+        if not self.admin_jid:
+            self.admin_jid = bare
+        logger.info(f"[XMPP] Admin ajouté : {bare}")
+
+    def remove_admin(self, jid: str):
+        """Retire un JID autorisé."""
+        bare = jid.lower().split("/")[0]
+        self.admin_jids.discard(bare)
+        if self.admin_jid == bare:
+            self.admin_jid = next(iter(self.admin_jids), None)
+        logger.info(f"[XMPP] Admin retiré : {bare}")
+
+    def disconnect(self):
+        if self._client:
+            try:
+                self._client.disconnect()
+            except Exception:
+                pass
+
+
+class _SlixClient(ClientXMPP):
+    """Implémentation interne slixmpp."""
+
+    def __init__(self, jid, password, muc_room, muc_nick,
+                 use_omemo, on_message, on_connected):
+        super().__init__(jid, password)
+        self._muc_room        = muc_room
+        self._muc_nick        = muc_nick
+        self._on_message_cb   = on_message
+        self._on_connected_cb = on_connected
+
+        self.register_plugin("xep_0030")  # Service Discovery
+        self.register_plugin("xep_0045")  # MUC
+        self.register_plugin("xep_0085")  # Chat state
+        self.register_plugin("xep_0199")  # Ping keepalive
+
+        if use_omemo:
+            self._setup_omemo()
+
+        self.add_event_handler("session_start",    self._on_session_start)
+        self.add_event_handler("message",          self._on_message)
+        self.add_event_handler("groupchat_message", self._on_muc_message)
+
+    def _setup_omemo(self):
+        try:
+            self.register_plugin("xep_0384")
+            logger.info("[XMPP] OMEMO activé")
+        except Exception as e:
+            logger.warning(f"[XMPP] OMEMO non disponible : {e}")
+
+    def start(self):
+        import asyncio
+        loop = asyncio.new_event_loop()
+        asyncio.set_event_loop(loop)
+        self.loop = loop
+        self.connect()
+        loop.run_forever()
+
+    async def _on_session_start(self, event):
+        self.send_presence()
+        await self.get_roster()
+        if self._muc_room:
+            self.plugin["xep_0045"].join_muc(
+                room=self._muc_room,
+                nick=self._muc_nick,
+            )
+        if self._on_connected_cb:
+            self._on_connected_cb()
+
+    def _on_message(self, msg):
+        if msg["type"] in ("chat", "normal") and msg["body"]:
+            body = msg["body"].strip()
+            if body:
+                self._on_message_cb(str(msg["from"]), body, is_muc=False)
+
+    def _on_muc_message(self, msg):
+        if msg["mucnick"] == self._muc_nick:
+            return
+        if msg["body"]:
+            body = msg["body"].strip()
+            if body:
+                self._on_message_cb(str(msg["from"]), body, is_muc=True)
+
+    def send_xmpp_message(self, to: str, body: str, is_muc: bool = False):
+        import functools
+        msg_type = "groupchat" if is_muc else "chat"
+        fn = functools.partial(self.send_message, mto=to, mbody=body, mtype=msg_type)
+        if hasattr(self, 'loop') and self.loop and self.loop.is_running():
+            self.loop.call_soon_threadsafe(fn)
+        else:
+            fn()