{
  "CLICK_TOOL": {
    "type": "function",
    "function": {
      "name": "click",
      "description": "[ACTION] Tap/click on the target coordinate on the screen. The screen after click will be returned automatically. For buttons, checkboxes, tabs, icons, items in a list, tap ON the element. For text fields / search bars / input boxes, tap INSIDE the input box to focus it.",
      "parameters": {
        "type": "object",
        "properties": {
          "target": {
            "type": "array",
            "items": {
              "type": "integer"
            },
            "description": "Normalized coordinates [x, y] in 0-1000 scale."
          },
          "target_description": {
            "type": "string",
            "description": "What the target is, in a few words (e.g. 'play button', 'search input', 'video body'). Required: a coordinate names nothing by itself."
          },
          "times": {
            "type": "integer",
            "description": "Number of taps to perform (default 1). Set to 2 for double click."
          },
          "delay_ms": {
            "type": "integer",
            "description": "Delay between taps in milliseconds (default 100)."
          }
        },
        "required": [
          "target",
          "target_description"
        ]
      }
    }
  },
  "CLICK_SEQUENCE_TOOL": {
    "type": "function",
    "function": {
      "name": "click_sequence",
      "description": "[ACTION] Executes a sequence of taps one by one in order on the specified targets (e.g. [[500, 280], [885, 362]]). The screen will be returned ONLY after all clicks in the sequence have completed.",
      "parameters": {
        "type": "object",
        "properties": {
          "sequence": {
            "type": "array",
            "items": {
              "type": "array",
              "items": {
                "type": "integer"
              },
              "description": "Normalized coordinates [x, y] in 0-1000 scale (e.g., [500, 280])."
            },
            "description": "List of targets to tap in sequence, e.g. [[500, 280], [885, 362]]."
          },
          "target_descriptions": {
            "type": "array",
            "items": {
              "type": "string"
            },
            "description": "What each target is, in a few words, one entry per sequence entry in the same order (e.g. ['video body', 'skip button']). Required: a coordinate names nothing by itself."
          },
          "delay_ms": {
            "type": "integer",
            "description": "Delay between consecutive taps in milliseconds (default 50ms)."
          }
        },
        "required": [
          "sequence",
          "target_descriptions"
        ]
      }
    }
  },
  "LONG_PRESS_TOOL": {
    "type": "function",
    "function": {
      "name": "long_press",
      "description": "[ACTION] Long press on a target coordinate on the screen. The screen after long pressing will be returned automatically.",
      "parameters": {
        "type": "object",
        "properties": {
          "target": {
            "type": "array",
            "items": {
              "type": "integer"
            },
            "description": "Normalized coordinates [x, y] in 0-1000 scale."
          },
          "target_description": {
            "type": "string",
            "description": "What the target is, in a few words (e.g. 'play button', 'search input', 'video body'). Required: a coordinate names nothing by itself."
          },
          "duration_ms": {
            "type": "integer",
            "description": "Duration of press in milliseconds (default 1000ms)."
          }
        },
        "required": [
          "target",
          "target_description"
        ]
      }
    }
  },
  "INPUT_TEXT_TOOL": {
    "type": "function",
    "function": {
      "name": "input_text",
      "description": "[ACTION] Type text into an input field on the screen. The screen after typing will be returned automatically. Automatically taps inside the input box at target [x, y] to focus before typing.",
      "parameters": {
        "type": "object",
        "properties": {
          "text": {
            "type": "string",
            "description": "Text to type into the focused input field."
          },
          "target": {
            "type": "array",
            "items": {
              "type": "integer"
            },
            "description": "Coordinates [x, y] of the input box in 0-1000 scale."
          },
          "target_description": {
            "type": "string",
            "description": "What the target is, in a few words (e.g. 'play button', 'search input', 'video body'). Required: a coordinate names nothing by itself."
          },
          "clear_exist": {
            "type": "boolean",
            "description": "Whether to clear existing text in the input box before typing (default True)."
          }
        },
        "required": [
          "text",
          "target",
          "target_description"
        ]
      }
    }
  },
  "SWIPE_TOOL": {
    "type": "function",
    "function": {
      "name": "swipe",
      "description": "[ACTION] Perform a swipe, drag, or slider-adjustment gesture on the screen. The screen and UI hierarchy after swipe will be returned automatically.\n\n• Directional Scrolling ('direction' or 'action'): Recommended for general browsing and standard page scrolling in most scenarios. Automatically computes safe swipe vectors and adaptive duration, retains a ~40% visual overlap anchor for zero-omission traversal, and prevents inertial flings. Supports scoping to a sub-container via 'target'. If it fails on certain custom layouts, fall back to specifying exact coordinates ('start' and 'end') directly.\n• Precise Coordinate Gestures ('start', 'end' or coordinates list): Best for local, fine-grained interactions such as adjusting sliders/SeekBars (e.g., volume, brightness, progress bars), drag-and-drop / list reordering, or as a reliable fallback when directional scrolling fails on specific containers. Always drag slightly PAST the target position to overcome touch slop and reliably trigger the update. When setting a slider to Maximum (100%) or Minimum (0%), swipe fully to the extreme boundary.",
      "parameters": {
        "type": "object",
        "properties": {
          "direction": {
            "type": "string",
            "enum": [
              "up",
              "down",
              "left",
              "right"
            ],
            "description": "Direction for scrolling and swiping: 'up' (drags bottom-to-top, scrolling down to reveal content below), 'down' (drags top-to-bottom, scrolling up to reveal content above), 'left' (drags right-to-left, scrolling right), 'right' (drags left-to-right, scrolling left)."
          },
          "start": {
            "type": "array",
            "items": {
              "type": "integer"
            },
            "description": "Start normalized coordinates [start_x, start_y] in 0-1000 scale."
          },
          "end": {
            "type": "array",
            "items": {
              "type": "integer"
            },
            "description": "End normalized coordinates [end_x, end_y] in 0-1000 scale."
          },
          "target": {
            "description": "Optional target element index (e.g. 2) or container bounds [left, top, right, bottom] to scope the directional swipe within."
          },
          "action": {
            "description": "Backward-compatible swipe gesture: smart direction string ('up', 'down', 'left', 'right') OR precise custom coordinates [start_x, start_y, end_x, end_y] in 0-1000 scale."
          },
          "target_description": {
            "type": "string",
            "description": "What is being dragged, in a few words (e.g. 'brightness slider knob'). Required for coordinate gestures ('start'/'end' or a coordinates list); ignored for directional scrolling."
          },
          "duration": {
            "type": "integer",
            "description": "Optional swipe/drag duration in milliseconds (default 800). For drag-and-drop, list reordering, or sliding/adjusting sliders (e.g., volume, brightness, SeekBars), set duration >= 1000 (e.g. 1500). If omitted for directional swipe, duration is computed automatically."
          }
        }
      }
    }
  },
  "PRESS_KEY_TOOL": {
    "type": "function",
    "function": {
      "name": "press_key",
      "description": "[ACTION] Press a physical or virtual system button. The screen after pressing will be returned automatically.",
      "parameters": {
        "type": "object",
        "properties": {
          "key": {
            "type": "string",
            "description": "Standard Android system button name (ENTER, BACK, HOME, APP_SWITCH)."
          }
        },
        "required": [
          "key"
        ]
      }
    }
  },
  "MANAGE_APP_TOOL": {
    "type": "function",
    "function": {
      "name": "manage_app",
      "description": "[ACTION] Launch or force stop a specified application. The screen after launch/stop will be returned automatically.",
      "parameters": {
        "type": "object",
        "properties": {
          "action": {
            "type": "string",
            "description": "The action type ('launch' or 'stop')."
          },
          "app_name": {
            "type": "string",
            "description": "Display name or package name of the application."
          }
        },
        "required": [
          "action",
          "app_name"
        ]
      }
    }
  },
  "WAIT_FOR_DELAY_TOOL": {
    "type": "function",
    "function": {
      "name": "wait_for_delay",
      "description": "[ACTION] Pause execution and wait for a specified duration in milliseconds. The screen after pause will be returned automatically.",
      "parameters": {
        "type": "object",
        "properties": {
          "time_in_ms": {
            "type": "integer",
            "description": "The exact duration to pause in milliseconds (e.g., 2000 for 2s, 60000 for 1 min, 180000 for 3 mins, 300000 for 5 mins). Convert any required waiting duration into milliseconds."
          }
        },
        "required": [
          "time_in_ms"
        ]
      }
    }
  }
}