feat(android): add native controls and continuous multi-touch

artemis/llm/stream_guard.py

@@ -19,21 +19,31 @@ _SMALL_ACTIONS = frozenset(
         "wait_for_delay",
         "action_sequence",
         "drag",
+        "pinch",
+        "touch_gesture",
+        "read_control",
+        "wait_until",
+        "scroll_to",
     }
 )
+_ARGUMENT_LIMITS = {
+    **dict.fromkeys(_SMALL_ACTIONS, SMALL_ACTION_ARGUMENT_LIMIT),
+    "control_action": 512 * 1024,
+}
 
 
 class ToolArgumentOverflow(ValueError):
     def __init__(self, name: str, characters: int):
+        limit = _ARGUMENT_LIMITS.get(name, SMALL_ACTION_ARGUMENT_LIMIT)
         self.details = {
             "reason": "tool_arguments_too_large",
             "tool": name,
             "argument_chars": characters,
-            "limit_chars": SMALL_ACTION_ARGUMENT_LIMIT,
+            "limit_chars": limit,
         }
         super().__init__(
             f"收到的 {name} 参数流超出安全限制（{characters} 字符，"
-            f"保护上限 {SMALL_ACTION_ARGUMENT_LIMIT}）；已关闭输出流，未执行本次动作。"
+            f"保护上限 {limit}）；已关闭输出流，未执行本次动作。"
         )
 
 
@@ -57,5 +67,5 @@ class ToolArgumentGuard:
             arguments = tool.get("args")
             if isinstance(arguments, str):
                 state.characters += len(arguments)
-            if state.name in _SMALL_ACTIONS and state.characters > SMALL_ACTION_ARGUMENT_LIMIT:
+            if state.name in _ARGUMENT_LIMITS and state.characters > _ARGUMENT_LIMITS[state.name]:
                 raise ToolArgumentOverflow(state.name, state.characters)