wehub-resource-sync
383 lines
14 KiB
Python
383 lines
14 KiB
Python
import json
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import logging
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import os
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from typing import Dict, List, Optional, Tuple
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import platform
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from gui_agents.s1.aci.ACI import ACI
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from gui_agents.s1.core.Manager import Manager
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from gui_agents.s1.core.Worker import Worker
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from gui_agents.s1.utils.common_utils import Node
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from gui_agents.utils import download_kb_data
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logger = logging.getLogger("desktopenv.agent")
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class UIAgent:
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"""Base class for UI automation agents"""
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def __init__(
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self,
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engine_params: Dict,
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grounding_agent: ACI,
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platform: str = platform.system().lower(),
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action_space: str = "pyautogui",
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observation_type: str = "a11y_tree",
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search_engine: str = "perplexica",
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):
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"""Initialize UIAgent
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Args:
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engine_params: Configuration parameters for the LLM engine
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grounding_agent: Instance of ACI class for UI interaction
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platform: Operating system platform (macos, linux, windows)
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action_space: Type of action space to use (pyautogui, aci)
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observation_type: Type of observations to use (a11y_tree, mixed)
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engine: Search engine to use (perplexica, LLM)
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"""
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self.engine_params = engine_params
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self.grounding_agent = grounding_agent
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self.platform = platform
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self.action_space = action_space
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self.observation_type = observation_type
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self.engine = search_engine
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def reset(self) -> None:
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"""Reset agent state"""
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pass
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def predict(self, instruction: str, observation: Dict) -> Tuple[Dict, List[str]]:
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"""Generate next action prediction
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Args:
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instruction: Natural language instruction
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observation: Current UI state observation
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Returns:
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Tuple containing agent info dictionary and list of actions
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"""
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pass
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def update_narrative_memory(self, trajectory: str) -> None:
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"""Update narrative memory with task trajectory
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Args:
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trajectory: String containing task execution trajectory
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"""
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pass
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def update_episodic_memory(self, meta_data: Dict, subtask_trajectory: str) -> str:
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"""Update episodic memory with subtask trajectory
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Args:
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meta_data: Metadata about current subtask execution
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subtask_trajectory: String containing subtask execution trajectory
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Returns:
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Updated subtask trajectory
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"""
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pass
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class GraphSearchAgent(UIAgent):
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"""Agent that uses hierarchical planning and directed acyclic graph modeling for UI automation"""
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def __init__(
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self,
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engine_params: Dict,
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grounding_agent: ACI,
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platform: str = platform.system().lower(),
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action_space: str = "pyatuogui",
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observation_type: str = "mixed",
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search_engine: Optional[str] = None,
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memory_root_path: str = os.getcwd(),
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memory_folder_name: str = "kb_s1",
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kb_release_tag: str = "v0.2.2",
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):
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"""Initialize GraphSearchAgent
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Args:
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engine_params: Configuration parameters for the LLM engine
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grounding_agent: Instance of ACI class for UI interaction
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platform: Operating system platform (macos, ubuntu)
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action_space: Type of action space to use (pyautogui, other)
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observation_type: Type of observations to use (a11y_tree, screenshot, mixed)
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search_engine: Search engine to use (LLM, perplexica)
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memory_root_path: Path to memory directory. Defaults to current working directory.
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memory_folder_name: Name of memory folder. Defaults to "kb_s2".
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kb_release_tag: Release tag for knowledge base. Defaults to "v0.2.2".
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"""
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super().__init__(
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engine_params,
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grounding_agent,
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platform,
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action_space,
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observation_type,
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search_engine,
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)
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self.memory_root_path = memory_root_path
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self.memory_folder_name = memory_folder_name
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self.kb_release_tag = kb_release_tag
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# Initialize agent's knowledge base on user's current working directory.
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print("Downloading knowledge base initial Agent-S knowledge...")
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self.local_kb_path = os.path.join(
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self.memory_root_path, self.memory_folder_name
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)
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if not os.path.exists(self.local_kb_path):
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download_kb_data(
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version="s1",
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release_tag=kb_release_tag,
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download_dir=self.local_kb_path,
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platform=self.platform,
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)
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print(
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f"Successfully completed download of knowledge base for version s1, tag {self.kb_release_tag}, platform {self.platform}."
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)
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else:
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print(
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f"Path local_kb_path {self.local_kb_path} already exists. Skipping download."
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)
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print(
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f"If you'd like to re-download the initial knowledge base, please delete the existing knowledge base at {self.local_kb_path}."
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)
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print(
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"Note, the knowledge is continually updated during inference. Deleting the knowledge base will wipe out all experience gained since the last knowledge base download."
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)
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self.reset()
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def reset(self) -> None:
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"""Reset agent state and initialize components"""
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# Initialize core components
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self.planner = Manager(
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self.engine_params,
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self.grounding_agent,
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platform=self.platform,
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search_engine=self.engine,
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local_kb_path=self.local_kb_path,
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)
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self.executor = Worker(
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self.engine_params,
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self.grounding_agent,
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platform=self.platform,
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local_kb_path=self.local_kb_path,
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)
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# Reset state variables
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self.requires_replan: bool = True
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self.needs_next_subtask: bool = True
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self.step_count: int = 0
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self.turn_count: int = 0
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self.failure_feedback: str = ""
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self.should_send_action: bool = False
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self.completed_tasks: List[Node] = []
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self.current_subtask: Optional[Node] = None
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self.subtasks: List[Node] = []
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self.search_query: str = ""
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self.subtask_status: str = "Start"
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def reset_executor_state(self) -> None:
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"""Reset executor and step counter"""
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self.executor.reset()
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self.step_count = 0
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def predict(self, instruction: str, observation: Dict) -> Tuple[Dict, List[str]]:
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"""Predict next UI action sequence
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Args:
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instruction: Natural language instruction
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observation: Current UI state observation Dictionary {"accessibility_tree": str, "screenshot": bytes}
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info: Dictionary containing additional information.
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Returns:
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Tuple of (agent info dict, list of actions)
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"""
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# Initialize the three info dictionaries
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planner_info = {}
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executor_info = {}
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evaluator_info = {
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"obs_evaluator_response": "",
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"num_input_tokens_evaluator": 0,
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"num_output_tokens_evaluator": 0,
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"evaluator_cost": 0.0,
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}
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actions = []
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# If the DONE response by the executor is for a subtask, then the agent should continue with the next subtask without sending the action to the environment
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while not self.should_send_action:
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self.subtask_status = "In"
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# if replan is true, generate a new plan. True at start, then true again after a failed plan
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if self.requires_replan:
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logger.info("(RE)PLANNING...")
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# failure feedback is the reason for the failure of the previous plan
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planner_info, self.subtasks = self.planner.get_action_queue(
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instruction=instruction,
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observation=observation,
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failure_feedback=self.failure_feedback,
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)
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self.requires_replan = False
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if "search_query" in planner_info:
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self.search_query = planner_info["search_query"]
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else:
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self.search_query = ""
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# use the exectuor to complete the topmost subtask
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if self.needs_next_subtask:
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logger.info("GETTING NEXT SUBTASK...")
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self.current_subtask = self.subtasks.pop(0)
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logger.info(f"NEXT SUBTASK: {self.current_subtask}")
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self.needs_next_subtask = False
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self.subtask_status = "Start"
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# get the next action from the executor
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executor_info, actions = self.executor.generate_next_action(
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instruction=instruction,
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search_query=self.search_query,
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subtask=self.current_subtask.name,
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subtask_info=self.current_subtask.info,
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future_tasks=self.subtasks,
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done_task=self.completed_tasks,
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obs=observation,
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)
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self.step_count += 1
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# set the should_send_action flag to True if the executor returns an action
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self.should_send_action = True
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if "FAIL" in actions:
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self.requires_replan = True
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# set the failure feedback to the evaluator feedback
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self.failure_feedback = f"Completed subtasks: {self.completed_tasks}. The subtask {self.current_subtask} cannot be completed. Please try another approach. {executor_info['plan_code']}. Please replan."
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self.needs_next_subtask = True
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# reset the step count, executor, and evaluator
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self.reset_executor_state()
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# if more subtasks are remaining, we don't want to send DONE to the environment but move on to the next subtask
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if self.subtasks:
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self.should_send_action = False
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elif "DONE" in actions:
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self.requires_replan = False
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self.completed_tasks.append(self.current_subtask)
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self.needs_next_subtask = True
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if self.subtasks:
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self.should_send_action = False
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self.subtask_status = "Done"
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self.reset_executor_state()
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self.turn_count += 1
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# reset the should_send_action flag for next iteration
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self.should_send_action = False
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# concatenate the three info dictionaries
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info = {
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**{
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k: v
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for d in [planner_info or {}, executor_info or {}, evaluator_info or {}]
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for k, v in d.items()
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}
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}
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info.update(
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{
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"subtask": self.current_subtask.name,
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"subtask_info": self.current_subtask.info,
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"subtask_status": self.subtask_status,
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}
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)
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return info, actions
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def update_narrative_memory(self, trajectory: str) -> None:
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"""Update narrative memory from task trajectory
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Args:
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trajectory: String containing task execution trajectory
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"""
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try:
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reflection_path = os.path.join(
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self.local_kb_path, self.platform, "narrative_memory.json"
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)
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try:
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reflections = json.load(open(reflection_path))
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except:
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reflections = {}
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if self.search_query not in reflections:
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reflection = self.planner.summarize_narrative(trajectory)
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reflections[self.search_query] = reflection
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with open(reflection_path, "w") as f:
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json.dump(reflections, f, indent=2)
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except Exception as e:
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logger.error(f"Failed to update narrative memory: {e}")
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def update_episodic_memory(self, meta_data: Dict, subtask_trajectory: str) -> str:
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"""Update episodic memory from subtask trajectory
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Args:
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meta_data: Metadata about current subtask execution
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subtask_trajectory: String containing subtask execution trajectory
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Returns:
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Updated subtask trajectory
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"""
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subtask = meta_data["subtask"]
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subtask_info = meta_data["subtask_info"]
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subtask_status = meta_data["subtask_status"]
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# Handle subtask trajectory
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if subtask_status == "Start" or subtask_status == "Done":
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# If it's a new subtask start, finalize the previous subtask trajectory if it exists
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if subtask_trajectory:
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subtask_trajectory += "\nSubtask Completed.\n"
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subtask_key = subtask_trajectory.split(
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"\n----------------------\n\nPlan:\n"
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)[0]
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try:
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subtask_path = os.path.join(
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self.local_kb_path, self.platform, "episodic_memory.json"
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)
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kb = json.load(open(subtask_path))
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except:
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kb = {}
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if subtask_key not in kb.keys():
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subtask_summarization = self.planner.summarize_episode(
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subtask_trajectory
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)
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kb[subtask_key] = subtask_summarization
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else:
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subtask_summarization = kb[subtask_key]
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logger.info("subtask_key: %s", subtask_key)
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logger.info("subtask_summarization: %s", subtask_summarization)
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with open(subtask_path, "w") as fout:
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json.dump(kb, fout, indent=2)
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# Reset for the next subtask
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subtask_trajectory = ""
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# Start a new subtask trajectory
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subtask_trajectory = (
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"Task:\n"
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+ self.search_query
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+ "\n\nSubtask: "
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+ subtask
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+ "\nSubtask Instruction: "
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+ subtask_info
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+ "\n----------------------\n\nPlan:\n"
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+ meta_data["executor_plan"]
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+ "\n"
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)
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elif subtask_status == "In":
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# Continue appending to the current subtask trajectory if it's still ongoing
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subtask_trajectory += (
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"\n----------------------\n\nPlan:\n"
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+ meta_data["executor_plan"]
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+ "\n"
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)
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return subtask_trajectory
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