claims: a draft claim inside another agent's band is allowed when a coordinator assigned the agent a task for that scope (reassigned rework)

harbor/core.py

@@ -709,7 +709,14 @@ class Harbor(WorkMixin, ExtrasMixin, FlowMixin, LaunchMixin):
             if kind == "draft" and lo is not None:
                 bands = [a for a in active if a["kind"] == "band"
                          and scopes_overlap((canonical, lo, hi), (a["scope"], a["lo"], a["hi"]))]
-                if bands and not any(b["agent"] == agent for b in bands):
+                # a task a coordinator assigned to this agent for this scope is the exception to another's band
+                assigned = any(scopes_overlap((canonical, lo, hi), (t["scope"], *parse_scope(t["scope"])[1:]))
+                               for t in c.execute("SELECT scope FROM tasks WHERE assignee=? AND scope IS NOT NULL "
+                                                  "AND state IN ('open','in_progress') AND created_by IN (%s)"
+                                                  % ",".join("?" * len(self.coordinators)),
+                                                  (agent, *self.coordinators)).fetchall()
+                               if t["scope"].startswith(("fn:", "range:", "file:")))
+                if bands and not any(b["agent"] == agent for b in bands) and not assigned:
                     conflicts += bands
             if conflicts and not override:
                 described = "; ".join(f"{a['agent']} holds {a['kind']} {a['scope']}"