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3
Commits
| Author | SHA1 | Date | |
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937a87b36c | ||
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d7b6d83cd8 | ||
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084ed59ad5 |
@@ -0,0 +1 @@
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"""Agent 编排层:第三方 LLM(OpenAI 兼容)经 MCP 工具控制手机。"""
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@@ -0,0 +1,148 @@
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"""Agent 编排层:OpenAI 兼容模型(DeepSeek 等)经 MCP 工具控制手机。
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工作流:
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1. 启动时从 MCP Server 拉工具列表 → 转 OpenAI function schema
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2. run(prompt):循环 chat/completions
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- 模型返回 tool_calls → 依次执行(经 MCP)→ 结果回喂
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- de_screenshot 的返回图像转为 image_url 追加为下一轮 user 消息(多模态看图)
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- 无 tool_calls → 返回最终文本
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"""
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import base64
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import json
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import logging
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import httpx
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from fastmcp import Client
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from mcp_agent.config import AgentSettings
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_log = logging.getLogger("agent")
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S = AgentSettings()
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SYSTEM_PROMPT = """你是手机自动化控制助手。你通过工具实时操作 Android 手机。
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工作规范:
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1. 先 de_list_devices 确定目标设备(在线才可操作)
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2. 观察屏幕:先 de_screenshot 获取截图(图像会随后给你),基于截图理解当前界面
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3. 操作:de_tap/de_swipe 的坐标必须与最近一次 de_screenshot 图像一致(直接看图给坐标,服务器自动换算)
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4. 每次关键操作后再次 de_screenshot 验证结果,直到完成用户目标
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5. 完成或失败时用中文总结:做了什么、当前状态、需要用户注意的事项
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6. 设备不可用/操作失败时如实报告错误,不要臆测成功
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可用工具清单将由系统提供。"""
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class Agent:
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def __init__(self, settings: AgentSettings = None):
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self.s = settings or S
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self.tools_schema = [] # OpenAI function schema
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self._tool_exec = {} # name -> callable
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self.messages = []
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# ---------- MCP 工具桥 ----------
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async def _load_tools(self):
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"""从 MCP Server 拉工具,转 OpenAI function schema。"""
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self._mcp = Client(self.s.mcp_url)
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await self._mcp.__aenter__()
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tools = await self._mcp.list_tools()
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self.tools_schema = []
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for t in tools:
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schema = t.inputSchema if hasattr(t, "inputSchema") else {}
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# fastmcp Tool 属性兼容:name/description/inputSchema
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name = getattr(t, "name", "")
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desc = getattr(t, "description", "") or ""
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self.tools_schema.append({
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"type": "function",
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"function": {"name": name, "description": desc,
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"parameters": schema}})
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self._tool_exec[name] = t
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_log.info("MCP 工具已加载: %s", [s["function"]["name"] for s in self.tools_schema])
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async def close(self):
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if getattr(self, "_mcp", None):
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await self._mcp.__aexit__(None, None, None)
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# ---------- 模型调用 ----------
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async def _chat(self):
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"""调用 OpenAI 兼容 chat/completions,返回完整 response JSON。"""
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body = {
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"model": self.s.model,
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"messages": self.messages,
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"tools": self.tools_schema if self.tools_schema else None,
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"max_tokens": 4096,
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}
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headers = {"Authorization": f"Bearer {self.s.api_key}",
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"Content-Type": "application/json"}
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async with httpx.AsyncClient(timeout=self.s.request_timeout) as client:
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r = await client.post(f"{self.s.api_base.rstrip('/')}/chat/completions",
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json=body, headers=headers)
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if r.status_code != 200:
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raise RuntimeError(f"模型 API HTTP {r.status_code}: {r.text[:300]}")
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return r.json()
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# ---------- 工具执行 ----------
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async def _execute_tool(self, name, arguments):
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"""执行 MCP 工具,返回 (文本结果, image_data_or_None)。"""
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args = json.loads(arguments) if isinstance(arguments, str) else (arguments or {})
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_log.info("执行工具 %s %s", name, args)
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try:
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result = await self._mcp.call_tool(name, args)
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data = getattr(result, "data", result)
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except Exception as e:
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return {"ok": False, "error": f"工具执行失败: {e}"}, None
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# de_screenshot:图像分离(作为 image_url 追加给模型看)
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if name == "de_screenshot" and isinstance(data, dict) and data.get("ok"):
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img = (data.get("data") or {}).get("image") or {}
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if img.get("data"):
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text_result = {k: v for k, v in (data.get("data") or {}).items()
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if k != "image"}
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return text_result, img["data"]
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return data, None
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# ---------- 主循环 ----------
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async def run(self, prompt: str, serial: str = "") -> str:
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"""执行一轮指令,返回最终回答文本。"""
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target = serial or self.s.default_serial
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sys_txt = SYSTEM_PROMPT
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if target:
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sys_txt += f"\n\n本次默认目标设备 serial:{target}(未指定设备时用它)。"
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self.messages = [{"role": "system", "content": sys_txt},
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{"role": "user", "content": prompt}]
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for step in range(self.s.max_steps):
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resp = await self._chat()
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choice = (resp.get("choices") or [{}])[0]
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msg = choice.get("message") or {}
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# 1) 工具调用
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tool_calls = msg.get("tool_calls")
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if tool_calls:
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self.messages.append({
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"role": "assistant",
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"content": msg.get("content") or "",
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"tool_calls": tool_calls})
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for tc in tool_calls:
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fn = tc.get("function") or {}
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name = fn.get("name", "")
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text_result, image_b64 = await self._execute_tool(
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name, fn.get("arguments", "{}"))
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self.messages.append({
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"role": "tool",
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"tool_call_id": tc.get("id", ""),
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"content": json.dumps(text_result, ensure_ascii=False)[:4000]})
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# 截图图像:作为下一轮 user 图像内容(OpenAI 协议 tool 结果只能文本)
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if image_b64:
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self.messages.append({
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"role": "user",
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"content": [{"type": "text",
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"text": "这是最新屏幕截图,请基于它继续判断"},
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{"type": "image_url",
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"image_url": {"url":
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f"data:image/jpeg;base64,{image_b64}"}}]})
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continue
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# 2) 最终回答
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return msg.get("content") or "(模型无输出)"
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return "(达到最大步骤数未完成,请检查操作是否卡在循环)"
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@@ -0,0 +1,60 @@
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"""Agent CLI:命令行给 AI 下指令控制手机。
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用法:
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export AGENT_API_KEY=sk-xxx # DeepSeek API Key
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export AGENT_DEFAULT_SERIAL=192.168.20.66:5555 # 可选:默认设备
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python -m mcp_agent.cli "打开抖音,搜索奚学东,截个图"
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python -m mcp_agent.cli -s 192.168.20.66:5555 "打开微信"
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python -m mcp_agent.cli # 交互模式(exit 退出)
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"""
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import argparse
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import asyncio
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import logging
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import os
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from mcp_agent.agent import Agent
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logging.basicConfig(level=logging.INFO,
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format="%(asctime)s %(levelname)s [%(name)s] %(message)s")
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_log = logging.getLogger("cli")
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async def _run_once(prompt, serial):
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if not os.environ.get("AGENT_API_KEY") and not os.environ.get("DEEPSEEK_API_KEY"):
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print("❌ 未配置 API Key:export AGENT_API_KEY=sk-xxx")
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return
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agent = Agent()
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try:
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await agent._load_tools()
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print(f"🤖 指令: {prompt}\n")
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answer = await agent.run(prompt, serial)
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print(f"\n✅ 结果:\n{answer}")
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finally:
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await agent.close()
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def main():
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ap = argparse.ArgumentParser(description="MCP 手机控制 Agent CLI")
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ap.add_argument("prompt", nargs="?", default="", help="指令(不填则交互模式)")
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ap.add_argument("-s", "--serial", default="", help="目标设备 serial")
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args = ap.parse_args()
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if args.prompt:
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asyncio.run(_run_once(args.prompt, args.serial))
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return
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print("交互模式:输入指令(如「打开抖音搜索奚学东」),exit 退出")
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while True:
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try:
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prompt = input("\n指令> ").strip()
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except (EOFError, KeyboardInterrupt):
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break
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if not prompt:
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continue
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if prompt.lower() in ("exit", "quit", "退出"):
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break
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asyncio.run(_run_once(prompt, args.serial))
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if __name__ == "__main__":
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main()
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@@ -0,0 +1,30 @@
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"""Agent 层配置(第三方 LLM API,OpenAI 兼容格式)。
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DeepSeek 官方 API:https://api.deepseek.com(OpenAI 兼容)。
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生产用 .env 注入 DEEPSEEK_API_KEY,不要提交 git。
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"""
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import os
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def _env(key, default):
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return os.environ.get(key, default)
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class AgentSettings:
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# 模型 API(OpenAI 兼容)
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api_base = _env("AGENT_API_BASE", "https://api.deepseek.com")
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api_key = _env("AGENT_API_KEY", _env("DEEPSEEK_API_KEY", ""))
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model = _env("AGENT_MODEL", "deepseek-v4-flash-vision-exp")
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# MCP Server(工具源)
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mcp_url = _env("AGENT_MCP_URL", "http://127.0.0.1:8033/mcp")
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# 默认目标设备(命令行不指定 serial 时用它;空则让模型先 de_list_devices)
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default_serial = _env("AGENT_DEFAULT_SERIAL", "")
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# Agent 循环上限与请求超时
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max_steps = int(_env("AGENT_MAX_STEPS", "20"))
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request_timeout = float(_env("AGENT_TIMEOUT", "120"))
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# system prompt 语言
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language = _env("AGENT_LANG", "zh")
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@@ -18,6 +18,11 @@ logging.basicConfig(level=logging.INFO,
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_log = logging.getLogger("mcp")
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S = config.Settings()
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# 坐标空间缓存:serial -> (display_w, display_h, native_w, native_h)
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# de_screenshot 返回的图与 de_tap/de_swipe 的坐标同一空间(display),
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# server 按比例换算为设备原生坐标(模型只感知截图坐标系,不感知原生分辨率)。
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_coord = {}
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audit.init(S.audit_file)
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mcp = FastMCP("mobile-control")
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@@ -47,6 +52,16 @@ def _check_write():
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raise PlatformError("write_disabled", "写操作未启用(MCP_ALLOW_WRITE=1 开启)")
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def _to_native(serial, x, y):
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"""截图坐标 → 设备原生坐标(按最近一次截图的比例换算)。"""
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c = _coord.get(serial)
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if not c:
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raise PlatformError("invalid_param",
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"请先对该设备执行 de_screenshot(需要建立坐标空间)")
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dw, dh, nw, nh = c
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return (round(x * nw / dw), round(y * nh / dh))
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def _err(e: PlatformError):
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return {"ok": False, "error": {"code": e.code, "message": e.message}}
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@@ -96,40 +111,52 @@ def de_screenshot(serial: str) -> dict:
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buf = io.BytesIO()
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img.convert("RGB").save(buf, "JPEG", quality=S.jpeg_quality)
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data = base64.b64encode(buf.getvalue()).decode()
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# 记录坐标空间(display=返回图尺寸,native=设备原生),供 tap/swipe 换算
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nw, nh = platform().screen_size(serial)
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_coord[serial] = (img.size[0], img.size[1], nw, nh)
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except PlatformError as e:
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return _err(e)
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except Exception as e:
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return _err(PlatformError("platform_unavailable", f"截图处理失败: {e}"))
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audit.audit("de_screenshot", serial, f"{w}x{h}", "ok")
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dw, dh, nw, nh = _coord[serial]
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return _ok({"image": {"type": "image", "data": data,
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"mimeType": "image/jpeg"},
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"width": w, "height": h,
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"width": dw, "height": dh,
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"native_size": {"width": nw, "height": nh},
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"screen_state": screen_state})
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@mcp.tool()
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def de_tap(serial: str, x: int, y: int) -> dict:
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"""点击设备屏幕指定坐标(设备原生分辨率像素,与截图 1:1 换算)。"""
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"""点击设备屏幕指定坐标。
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坐标空间 = de_screenshot 返回的图像坐标(display 空间)——先截图拿到
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native_size 后再点击,server 自动换算为设备原生坐标。
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"""
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try:
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_check_write()
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serial = _check_serial(serial)
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if x < 0 or y < 0:
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raise PlatformError("invalid_param", "坐标不能为负")
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platform().tap(serial, x, y)
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nx, ny = _to_native(serial, x, y)
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platform().tap(serial, nx, ny)
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except PlatformError as e:
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return _err(e)
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audit.audit("de_tap", serial, f"({x},{y})", "ok")
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audit.audit("de_tap", serial, f"({x},{y})->native({nx},{ny})", "ok")
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return _ok({"action": "tap", "serial": serial, "x": x, "y": y})
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@mcp.tool()
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def de_swipe(serial: str, x1: int, y1: int, x2: int, y2: int,
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duration: float = 0.2) -> dict:
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"""在设备屏幕上滑动(起终点为原生分辨率像素)。"""
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"""在设备屏幕上滑动(坐标空间同 de_tap:截图坐标,server 换算原生)。"""
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try:
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_check_write()
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serial = _check_serial(serial)
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platform().swipe(serial, x1, y1, x2, y2, duration)
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nx1, ny1 = _to_native(serial, x1, y1)
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nx2, ny2 = _to_native(serial, x2, y2)
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platform().swipe(serial, nx1, ny1, nx2, ny2, duration)
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except PlatformError as e:
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return _err(e)
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audit.audit("de_swipe", serial, f"({x1},{y1})->({x2},{y2})", "ok")
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@@ -80,6 +80,19 @@ class PlatformClient:
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f"截图 HTTP {r.status_code}")
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return r.content, r.headers.get("X-Screen-State", "unknown")
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def screen_size(self, serial):
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"""屏幕原生分辨率(GET /api/screen/size),返回 (w, h)。"""
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r = self._get("/api/screen/size", serial=serial)
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if r.status_code == 503:
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raise PlatformError("device_offline", r.text[:120])
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if r.status_code != 200:
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raise PlatformError("platform_unavailable",
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f"分辨率 HTTP {r.status_code}")
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j = r.json() or {}
|
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if not j.get("ok"):
|
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raise PlatformError("device_offline", str(j.get("error", "取分辨率失败"))[:120])
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return int(j["width"]), int(j["height"])
|
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|
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def tap(self, serial, x, y):
|
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"""点击(POST /api/screen/tap)。"""
|
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r = self._post("/api/screen/tap", json={"serial": serial,
|
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@@ -542,6 +542,25 @@ def api_screen_text():
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return jsonify({"ok": False, "error": f"输入失败: {e}"}), 503
|
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|
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|
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@bp.route("/api/screen/size")
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@perm_required(PERM_DEVICES)
|
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def api_screen_size():
|
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"""屏幕原生分辨率(只读,供 MCP 坐标换算:截图是缩放图,操作需原生坐标)。
|
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|
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返回 {ok, width, height}(如 1080x2400);离线/不可达 → 503。
|
||||
"""
|
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serial = request.args.get("serial", "")
|
||||
if not serial:
|
||||
return jsonify({"ok": False, "error": "缺少 serial"}), 400
|
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try:
|
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d = _screen_get_device(serial)
|
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w, h = d.window_size()
|
||||
return jsonify({"ok": True, "width": w, "height": h})
|
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except Exception as e:
|
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_screen_invalidate(serial)
|
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return jsonify({"ok": False, "error": f"获取分辨率失败: {e}"}), 503
|
||||
|
||||
|
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# ================== API:应用管理(APK 上传/安装)==================
|
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|
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def _current_focus_pkg(serial):
|
||||
|
||||
Reference in New Issue
Block a user