Исправлен tool loop: tool_choice auto после выполнения tools

openrouter_auto_router.py

@@ -105,9 +105,9 @@ class Pipe:
             "complex bug", "complex problem", "multi-agent", "multiple services",
             "distributed system", "design a system", "build a system", "agentic",
         }
-        if any(self._contains_phrase(lowered, item) for item in complex_phrases) or any(
-            word.startswith("архитектур") for word in words
-        ):
+        if any(self._contains_phrase(lowered, item) for item in complex_phrases):
+            return "complex"
+        if any(word.startswith("архитектур") for word in words):
             return "complex"
 
         coding_words = {
@@ -128,11 +128,9 @@ class Pipe:
             "перепиши код", "рефакторинг", "stack trace", "error log", "виртуальная машина",
             "reverse proxy", "nginx proxy manager", "pull request",
         }
-        coding_stems = {"программ", "функци", "библиотек", "ошиб", "сертификат"}
-
         if words.intersection(coding_words):
             return "coding"
-        if any(word.startswith(stem) for word in words for stem in coding_stems):
+        if any(word.startswith(stem) for word in words for stem in {"программ", "функци", "библиотек", "ошиб", "сертификат"}):
             return "coding"
         if any(self._contains_phrase(lowered, item) for item in coding_phrases):
             return "coding"
@@ -189,13 +187,15 @@ class Pipe:
         raise RuntimeError("Request failed without a captured error")
 
     def _parse_tool_arguments(self, raw_arguments):
-        """Разбирает JSON-аргументы вызова инструмента."""
+        """Разбирает JSON-аргументы инструмента."""
         if raw_arguments is None:
             return {}
         if isinstance(raw_arguments, dict):
             return raw_arguments
-        if not isinstance(raw_arguments, str) or not raw_arguments.strip():
-            return {} if isinstance(raw_arguments, str) else None
+        if not isinstance(raw_arguments, str):
+            return None
+        if not raw_arguments.strip():
+            return {}
         try:
             arguments = json.loads(raw_arguments)
         except json.JSONDecodeError:
@@ -225,7 +225,7 @@ class Pipe:
                 result.append({"type": "function", "function": spec})
         return result
 
-    def _build_payload(self, body, model, messages, tools_map):
+    def _build_payload(self, body, model, messages, tools_map, tool_iteration=0):
         """Собирает payload для OpenRouter."""
         payload = dict(body)
         payload.update({"model": model, "messages": messages, "stream": False})
@@ -235,24 +235,33 @@ class Pipe:
             payload["max_tokens"] = self.valves.MAX_TOKENS
         for field in {"user", "reasoning_effort", "metadata", "store"}:
             payload.pop(field, None)
+
         if not self.valves.ENABLE_TOOLS:
             for field in {"tools", "tool_choice", "parallel_tool_calls"}:
                 payload.pop(field, None)
-        elif not payload.get("tools"):
+        else:
+            if not payload.get("tools"):
                 specs = self._extract_tool_specs(tools_map)
                 if specs:
                     payload["tools"] = specs
+
+            # После первого tool call модель должна иметь возможность
+            # завершить ответ обычным текстом, даже если Open WebUI
+            # передал tool_choice="required" или фиксированный tool.
+            if tool_iteration > 0:
+                payload["tool_choice"] = "auto"
+
         return payload
 
-    async def _execute_tool_call(self, tool_call, tools_map):
+    async def _execute_tool_call(self, call, tools_map):
         """Выполняет tool call; фатальна только ошибка tool_call_id."""
-        if not isinstance(tool_call, dict):
+        if not isinstance(call, dict):
             return {"fatal": True, "result": "Ошибка: некорректный формат tool call."}
-        call_id = tool_call.get("id")
+        call_id = call.get("id")
         if not isinstance(call_id, str) or not call_id.strip():
             return {"fatal": True, "result": "Ошибка: отсутствует корректный tool_call_id."}
 
-        function = tool_call.get("function")
+        function = call.get("function")
         if not isinstance(function, dict):
             return {"fatal": False, "tool_call_id": call_id, "name": "unknown", "arguments": {}, "result": "Ошибка: отсутствует описание функции."}
         name = function.get("name")
@@ -327,11 +336,11 @@ class Pipe:
 
         try:
             async with httpx.AsyncClient(timeout=timeout) as client:
-                for _ in range(self.valves.MAX_TOOL_ITERATIONS):
-                    data = await self._request(
-                        self._build_payload(body, model, messages, tools_map),
-                        client,
+                for iteration in range(self.valves.MAX_TOOL_ITERATIONS):
+                    payload = self._build_payload(
+                        body, model, messages, tools_map, iteration
                     )
+                    data = await self._request(payload, client)
                     try:
                         message = data["choices"][0]["message"]
                     except (KeyError, IndexError, TypeError):
@@ -350,21 +359,25 @@ class Pipe:
                         break
 
                     messages.append({"role": "assistant", "content": message.get("content"), "tool_calls": tool_calls})
-                    fatal_stop = False
+                    stop = False
                     for call in tool_calls:
                         function = call.get("function", {}) if isinstance(call, dict) else {}
-                        key = json.dumps({"name": function.get("name"), "arguments": function.get("arguments")}, ensure_ascii=False, sort_keys=True)
+                        key = json.dumps(
+                            {"name": function.get("name"), "arguments": function.get("arguments")},
+                            ensure_ascii=False,
+                            sort_keys=True,
+                        )
                         repeated[key] = repeated.get(key, 0) + 1
                         if repeated[key] > self.valves.MAX_SAME_TOOL_CALLS:
                             stopped_reason = "⚠️ Один и тот же tool call повторился слишком много раз."
-                            fatal_stop = True
+                            stop = True
                             break
 
                         execution = await self._execute_tool_call(call, tools_map)
                         if execution["fatal"]:
                             stopped_reason = execution["result"]
                             final_content = content
-                            fatal_stop = True
+                            stop = True
                             break
                         trace.append(execution)
                         messages.append({
@@ -373,7 +386,7 @@ class Pipe:
                             "name": execution["name"],
                             "content": execution["result"],
                         })
-                    if fatal_stop:
+                    if stop:
                         break
                 else:
                     stopped_reason = f"⚠️ Достигнут лимит циклов tool calling: {self.valves.MAX_TOOL_ITERATIONS}."