zzstoatzz.io
for assorted things
1#!/usr/bin/env -S uv run --script --quiet
2# /// script
3# requires-python = ">=3.12"
4# dependencies = ["marvin@git+https://github.com/prefecthq/marvin.git"]
5# ///
6"""
7Make some change to my phillips hue network of lights via agent + MCP server.
8
9Usage:
10
11```bash
12./update-lights -m "turn on sahara in the living room and nightlight in the kitchen"
13```
14
15Details:
16- uses a [`marvin`](https://github.com/prefecthq/marvin) (built on [`pydantic-ai`](https://github.com/pydantic/pydantic-ai)) agent
17- the agent spins up a [`fastmcp`](https://github.com/jlowin/fastmcp) MCP server that talks to my [`phue`](https://github.com/studioimaginaire/phue) bridge
18- set `HUE_BRIDGE_IP` and `HUE_BRIDGE_USERNAME` in `.env` or otherwise in environment
19- uses `OPENAI_API_KEY` by default, but you can set `AI_MODEL` in `.env` or otherwise in environment to use a different model
20"""
21
22import marvin
23import argparse
24from pydantic_settings import BaseSettings, SettingsConfigDict
25from pydantic import Field
26from pydantic_ai.mcp import MCPServerStdio
27from pydantic_ai.models import KnownModelName
28
29
30class Settings(BaseSettings):
31 model_config = SettingsConfigDict(env_file=".env", extra="ignore")
32
33 hue_bridge_ip: str = Field(default=...)
34 hue_bridge_username: str = Field(default=...)
35
36 ai_model: KnownModelName = Field(default="gpt-4o")
37
38
39settings = Settings()
40
41hub_mcp = MCPServerStdio(
42 command="uvx",
43 args=[
44 "smart-home@git+https://github.com/jlowin/fastmcp.git#subdirectory=examples/smart_home"
45 ],
46 env={
47 "HUE_BRIDGE_IP": settings.hue_bridge_ip,
48 "HUE_BRIDGE_USERNAME": settings.hue_bridge_username,
49 },
50)
51
52
53if __name__ == "__main__":
54 parser = argparse.ArgumentParser(description="Send a command to the Marvin agent.")
55 parser.add_argument(
56 "--message",
57 "-m",
58 type=str,
59 default="turn off all the lights",
60 help="The message to send to the agent (defaults to 'turn off all the lights').",
61 )
62 args = parser.parse_args()
63
64 agent = marvin.Agent(
65 model=settings.ai_model,
66 mcp_servers=[hub_mcp],
67 )
68 agent.run(str(args.message))