Reject deploy error URLs in builder

agent.py

@@ -186,10 +186,11 @@ class AgentBuilder(A2AAgent[BuilderConfig, NoAuth]):
                         raw = raw["input"]
                     await ctx.emit_progress(f"→ {tname}({_one_line(raw)})")
                 elif kind == "on_tool_end":
-                    summary = _summarize(tname, data.get("output"))
+                    output = data.get("output")
+                    summary = _summarize(tname, output)
                     await ctx.emit_progress(f"  {tname} ← {summary}")
-                    # Capture URL from any tool output that mentions one.
-                    deployed_url = deployed_url or _find_url(data.get("output"))
+                    if tname == "cp_deploy_tarball":
+                        deployed_url = deployed_url or _find_deploy_url(output, name)
                 elif kind == "on_chain_end" and not event.get("parent_ids"):
                     out = data.get("output")
                     if isinstance(out, dict):
@@ -240,7 +241,7 @@ class AgentBuilder(A2AAgent[BuilderConfig, NoAuth]):
             content = msg.get("content") if isinstance(msg, dict) else getattr(msg, "content", None)
             if isinstance(content, str) and content.strip():
                 last_reply = content
-        deployed_url = deployed_url or _find_url(last_reply)
+        deployed_url = deployed_url or _find_agent_url(last_reply, name)
 
         if not deployed_url:
             return {
@@ -304,19 +305,37 @@ def _summarize(name: str, output: Any) -> str:
     return str(output)[:120]
 
 
-def _find_url(value: Any) -> str | None:
+def _find_deploy_url(value: Any, agent_name: str) -> str | None:
+    if isinstance(value, str):
+        try:
+            value = json.loads(value)
+        except (json.JSONDecodeError, ValueError):
+            return _find_agent_url(value, agent_name)
+    if not isinstance(value, dict):
+        return None
+    if value.get("error"):
+        return None
+    if value.get("ok") is False or value.get("live") is False:
+        return None
+    return _find_agent_url(value.get("url") or value.get("live_url"), agent_name)
+
+
+def _find_agent_url(value: Any, agent_name: str) -> str | None:
+    expected = f"https://{agent_name}.a2acloud.io"
     if value is None:
         return None
     if isinstance(value, dict):
         for k in ("url", "live_url"):
             v = value.get(k)
-            if isinstance(v, str) and v.startswith("http"):
+            if isinstance(v, str) and v.rstrip("/") == expected:
                 return v
         # JSON-stringified outputs from tools.
-        return _find_url(json.dumps(value))
+        return _find_agent_url(json.dumps(value), agent_name)
     if isinstance(value, str):
-        m = _URL_RE.search(value)
-        return m.group(0) if m else None
+        for m in _URL_RE.finditer(value):
+            candidate = m.group(0).rstrip("/")
+            if candidate == expected:
+                return candidate
     return None