Several sessions of one app: a session's working folder names its agent when that agent runs in the same app (MCP server and hooks), an i_am tool binds a session explicitly, the doctor checks second sessions against their app's install, and an agent that left the roster can still be uninstalled

harbor/projects.py

@@ -121,6 +121,18 @@ class Project:
                 return agent
         return None
 
+    def host_of(self, agent):
+        return next((a["host"] for a in self.agents if a["name"] == agent), "")
+
+    def session_identity(self, pinned, cwd):
+        """Who a session is when one app runs several of the project's agents (Codex and Codex2): the agent its
+        working folder names in [identities], if that agent runs in the same app as the installed (pinned) one;
+        otherwise the pinned agent. Without a pinned agent, the folder alone decides."""
+        found = self.identity_for(cwd) if cwd else None
+        if found and found in self.ai_names and (not pinned or self.host_of(found) == self.host_of(pinned)):
+            return found
+        return pinned or found
+
     def threshold(self, key, default):
         return int(self.attention.get(key, default))