diff --git a/agent1.py b/agent1.py
index 4586357..ca2fc24 100644
--- a/agent1.py
+++ b/agent1.py
@@ -202,26 +202,35 @@ def _handle_agent_command(text: str) -> tuple:
     return False, None
 
 # ── MISE À JOUR DEPUIS GIT ───────────────────────────────────────────────
-def _get_agent_git_info(name: str) -> dict | None:
-    """Retourne {install_path, service_name, git_branch} depuis le registre, ou None."""
+def _get_agent_git_info(name: str) -> dict:
+    """
+    Retourne {install_path, service_name, git_branch} pour un agent.
+    Priorité : registre → convention /opt/<nom> (fallback automatique).
+    """
     try:
         registry = json.loads(REGISTRY_FILE.read_text(encoding="utf-8"))
         agent = registry.get(name, {})
-        if "install_path" not in agent:
-            return None
-        return {
-            "install_path": agent["install_path"],
-            "service_name": agent.get("service_name", name),
-            "git_branch"  : agent.get("git_branch", "main"),
-        }
     except Exception:
-        return None
+        agent = {}
+
+    # Fallback : déduire depuis le nom de l'agent (convention /opt/<nom>)
+    # agent1 est un cas particulier : /opt/agent, service "agent"
+    if name == "agent1":
+        default_path    = "/opt/agent"
+        default_service = "agent"
+    else:
+        default_path    = "/opt/{}".format(name)
+        default_service = name
+
+    return {
+        "install_path": agent.get("install_path", default_path),
+        "service_name": agent.get("service_name", default_service),
+        "git_branch"  : agent.get("git_branch", "main"),
+    }
 
 def _handle_update_one(name: str) -> str:
     from skills.agent_update import check_update
     info = _get_agent_git_info(name)
-    if not info:
-        return "[{}] Infos git absentes du registre (install_path manquant).".format(name)
     return check_update(name, info["install_path"], info["git_branch"])
 
 def _handle_update_all() -> str:
@@ -231,17 +240,14 @@ def _handle_update_all() -> str:
     except Exception:
         return "Erreur lecture registre."
     results = []
-    for name, info in registry.items():
-        if "install_path" not in info:
-            continue
-        results.append(check_update(name, info["install_path"], info.get("git_branch", "main")))
-    return "\n\n".join(results) if results else "Aucun agent avec install_path dans le registre."
+    for name in registry:
+        info = _get_agent_git_info(name)
+        results.append(check_update(name, info["install_path"], info["git_branch"]))
+    return "\n\n".join(results) if results else "Aucun agent dans le registre."
 
 def _handle_upgrade_one(name: str) -> str:
     from skills.agent_update import do_upgrade
     info = _get_agent_git_info(name)
-    if not info:
-        return "[{}] Infos git absentes du registre.".format(name)
     self_upgrade = (name == "agent1")
     msg = do_upgrade(name, info["install_path"], info["service_name"],
                      info["git_branch"], self_upgrade=self_upgrade)
@@ -264,14 +270,13 @@ def _handle_upgrade_all() -> str:
     results = []
     agent1_info = None
 
-    for name, info in registry.items():
-        if "install_path" not in info:
-            continue
+    for name in registry:
+        info = _get_agent_git_info(name)
         if name == "agent1":
             agent1_info = (name, info)   # traiter en dernier
             continue
         msg = do_upgrade(name, info["install_path"],
-                         info.get("service_name", name), info.get("git_branch", "main"))
+                         info["service_name"], info["git_branch"])
         results.append(msg)
 
     summary = "\n\n".join(results) if results else "Aucun agent mis à jour."
@@ -279,7 +284,7 @@ def _handle_upgrade_all() -> str:
     if agent1_info:
         name, info = agent1_info
         pull_msg = do_upgrade(name, info["install_path"],
-                              info.get("service_name", "agent"), info.get("git_branch", "main"),
+                              info["service_name"], info["git_branch"],
                               self_upgrade=True)
         summary += "\n\n" + pull_msg
         if xmpp_bot: