- Implement DevicePool and DeviceExecutionLock concurrency modes (per-device FIFO vs global serialization) - Extend ArtemisClient SDK and CLI with explicit device targeting and concurrency strategy configuration - Add server lifecycle management (artemis restart, stop, status) with cross-platform PID discovery - Update MCP server tools to support multi-device dispatch, trace tagging, and per-device execution - Enhance Showcase UI with step-by-step visual replay, playback speed controls, and device serial badges - Add comprehensive unit test coverage and edge-case verification scripts
438 lines
17 KiB
Python
438 lines
17 KiB
Python
# Copyright 2026 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Dynamic Multi-Provider Model Router for ARTEMIS.
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Provides role-based LLM/VLM dispatching, dynamic fallback chains,
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and unified provider configuration across Gemini, Vertex AI, OpenAI,
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Anthropic, OpenRouter, and local Ollama/vLLM endpoints.
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"""
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from enum import StrEnum
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import os
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from typing import Any
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from langchain_core.language_models.chat_models import BaseChatModel
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from pydantic import BaseModel, Field
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from artemis.config.settings import settings
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from artemis.utils.logger import get_logger
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logger = get_logger(__name__)
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class ModelProvider(StrEnum):
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GOOGLE = "google"
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GEMINI = "google"
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VERTEX_AI = "vertexai"
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OPENAI = "openai"
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ANTHROPIC = "anthropic"
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OPENROUTER = "openrouter"
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XAI = "xai"
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OLLAMA = "ollama"
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VLLM = "vllm"
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CUSTOM = "custom"
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@classmethod
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def from_string(cls, val: Any) -> "ModelProvider":
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"""Converts any string, enum, or mock representation into a canonical ModelProvider."""
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if isinstance(val, cls):
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return val
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s = str(val).lower().replace("_", "").replace("-", "").strip()
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mapping = {
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"google": cls.GOOGLE,
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"gemini": cls.GOOGLE,
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"vertexai": cls.VERTEX_AI,
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"vertex": cls.VERTEX_AI,
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"openai": cls.OPENAI,
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"anthropic": cls.ANTHROPIC,
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"claude": cls.ANTHROPIC,
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"openrouter": cls.OPENROUTER,
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"xai": cls.XAI,
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"grok": cls.XAI,
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"ollama": cls.OLLAMA,
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"vllm": cls.VLLM,
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"custom": cls.CUSTOM,
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}
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return mapping.get(s, cls.GOOGLE)
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class ModelEndpoint(BaseModel):
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"""Configuration definition for an LLM/VLM model endpoint."""
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provider: ModelProvider = Field(default=ModelProvider.GOOGLE, description="Model provider")
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model_name: str = Field(default="gemini-2.5-flash", description="Model name identifier")
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api_key: str | None = Field(default=None, description="API Key or secret")
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api_base: str | None = Field(default=None, description="Custom API endpoint base URL")
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temperature: float = Field(default=0.0, description="Sampling temperature")
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max_tokens: int | None = Field(default=None, description="Maximum completion tokens")
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timeout_seconds: float = Field(default=60.0, description="Request timeout in seconds")
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is_multimodal: bool = Field(
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default=True, description="Whether endpoint accepts image/video inputs"
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)
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reasoning_effort: str | None = Field(
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default=None, description="Reasoning effort: 'low', 'medium', 'high'"
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)
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thinking_budget: int | None = Field(default=None, description="Thinking budget token count")
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thinking_level: str | None = Field(
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default=None, description="Thinking level: 'minimal', 'low', 'medium', 'high'"
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)
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include_thoughts: bool | None = Field(
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default=None, description="Whether to include thought traces in response"
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)
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enable_grounding: bool = Field(
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default=False,
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description="Whether to enable Google Search grounding for Gemini endpoints",
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)
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def cache_key(self) -> tuple:
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"""Returns a deterministic hashable cache key for connection pooling."""
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return (
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self.provider.value,
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self.model_name,
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self.temperature,
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self.timeout_seconds,
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self.thinking_budget,
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self.thinking_level,
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self.include_thoughts,
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self.reasoning_effort,
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self.enable_grounding,
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self.api_base,
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)
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def _patch_langchain_google_genai():
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"""Patches ChatGoogleGenerativeAI._process_tool_config to preserve and ensure include_server_side_tool_invocations."""
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try:
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from langchain_google_genai.chat_models import ChatGoogleGenerativeAI
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from google.genai.types import ToolConfig
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if getattr(ChatGoogleGenerativeAI, "_is_artemis_patched", False):
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return
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original_process = ChatGoogleGenerativeAI._process_tool_config
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def patched_process_tool_config(self, tool_choice, tool_config, formatted_tools):
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config = original_process(self, tool_choice, tool_config, formatted_tools)
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has_builtin = False
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has_functions = False
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if formatted_tools:
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for tool in formatted_tools:
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tool_dict = tool if isinstance(tool, dict) else getattr(tool, "__dict__", {})
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if any(
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tool_dict.get(k) is not None
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for k in (
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"google_search",
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"code_execution",
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"google_maps",
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"google_search_retrieval",
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)
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):
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has_builtin = True
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if tool_dict.get("function_declarations"):
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has_functions = True
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if tool_config:
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normalized = (
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ToolConfig.model_validate(tool_config)
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if isinstance(tool_config, dict)
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else tool_config
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)
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if getattr(normalized, "include_server_side_tool_invocations", None) is not None:
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if config is None:
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config = ToolConfig(
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include_server_side_tool_invocations=normalized.include_server_side_tool_invocations
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)
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else:
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config.include_server_side_tool_invocations = (
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normalized.include_server_side_tool_invocations
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)
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if has_builtin and has_functions:
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if config is None:
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config = ToolConfig(include_server_side_tool_invocations=True)
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else:
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config.include_server_side_tool_invocations = True
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return config
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ChatGoogleGenerativeAI._process_tool_config = patched_process_tool_config
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ChatGoogleGenerativeAI._is_artemis_patched = True
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except Exception as e:
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logger.warning(f"Could not patch ChatGoogleGenerativeAI._process_tool_config: {e}")
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class ModelFactory:
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"""Unified factory for instantiating and caching LangChain chat models across providers."""
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_cache: dict[tuple, BaseChatModel] = {}
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@classmethod
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def get_model(cls, endpoint: ModelEndpoint) -> BaseChatModel:
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key = endpoint.cache_key()
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if key not in cls._cache:
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cls._cache[key] = cls.create_model(endpoint)
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return cls._cache[key]
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@classmethod
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def create_model(cls, endpoint: ModelEndpoint) -> BaseChatModel:
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provider = ModelProvider.from_string(endpoint.provider)
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if provider == ModelProvider.GOOGLE:
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_patch_langchain_google_genai()
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from langchain_google_genai import (
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ChatGoogleGenerativeAI,
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HarmBlockThreshold,
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HarmCategory,
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)
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api_key = (
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endpoint.api_key
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or (settings.GOOGLE_API_KEY.get_secret_value() if settings.GOOGLE_API_KEY else None)
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or os.environ.get("GOOGLE_API_KEY")
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or os.environ.get("GEMINI_API_KEY")
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)
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thinking_level = endpoint.thinking_level
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if endpoint.model_name and any(v in endpoint.model_name for v in ("2.5", "2.0", "1.5")):
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thinking_level = None
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kwargs: dict[str, Any] = {
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"model": endpoint.model_name,
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"temperature": endpoint.temperature,
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"max_output_tokens": endpoint.max_tokens,
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"api_key": api_key,
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"timeout": endpoint.timeout_seconds,
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"thinking_budget": endpoint.thinking_budget,
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"thinking_level": thinking_level,
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"include_thoughts": endpoint.include_thoughts,
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"safety_settings": {
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HarmCategory.HARM_CATEGORY_HATE_SPEECH: HarmBlockThreshold.BLOCK_NONE,
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HarmCategory.HARM_CATEGORY_HARASSMENT: HarmBlockThreshold.BLOCK_NONE,
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HarmCategory.HARM_CATEGORY_SEXUALLY_EXPLICIT: HarmBlockThreshold.BLOCK_NONE,
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HarmCategory.HARM_CATEGORY_DANGEROUS_CONTENT: HarmBlockThreshold.BLOCK_NONE,
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},
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}
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return ChatGoogleGenerativeAI(**{k: v for k, v in kwargs.items() if v is not None})
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elif provider == ModelProvider.VERTEX_AI:
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from langchain_google_vertexai import (
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ChatVertexAI,
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HarmBlockThreshold,
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HarmCategory,
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)
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kwargs = {
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"model_name": endpoint.model_name,
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"temperature": endpoint.temperature,
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"max_output_tokens": endpoint.max_tokens,
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"timeout": endpoint.timeout_seconds,
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"thinking_budget": endpoint.thinking_budget,
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"safety_settings": {
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HarmCategory.HARM_CATEGORY_HATE_SPEECH: HarmBlockThreshold.BLOCK_NONE,
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HarmCategory.HARM_CATEGORY_HARASSMENT: HarmBlockThreshold.BLOCK_NONE,
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HarmCategory.HARM_CATEGORY_SEXUALLY_EXPLICIT: HarmBlockThreshold.BLOCK_NONE,
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HarmCategory.HARM_CATEGORY_DANGEROUS_CONTENT: HarmBlockThreshold.BLOCK_NONE,
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},
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}
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return ChatVertexAI(**{k: v for k, v in kwargs.items() if v is not None})
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elif provider == ModelProvider.OPENAI:
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from langchain_openai import ChatOpenAI
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api_key = (
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endpoint.api_key
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or (settings.OPENAI_API_KEY.get_secret_value() if settings.OPENAI_API_KEY else None)
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or os.environ.get("OPENAI_API_KEY", "EMPTY")
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)
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base_url = endpoint.api_base or (
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str(settings.OPENAI_BASE_URL) if settings.OPENAI_BASE_URL else None
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)
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kwargs = {
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"model": endpoint.model_name,
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"temperature": endpoint.temperature,
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"max_tokens": endpoint.max_tokens,
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"api_key": api_key,
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"base_url": base_url,
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"timeout": endpoint.timeout_seconds,
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}
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if endpoint.reasoning_effort:
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kwargs["reasoning_effort"] = endpoint.reasoning_effort
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return ChatOpenAI(**{k: v for k, v in kwargs.items() if v is not None})
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elif provider == ModelProvider.ANTHROPIC:
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from langchain_anthropic import ChatAnthropic
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api_key = (
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endpoint.api_key
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or (
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settings.ANTHROPIC_API_KEY.get_secret_value()
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if settings.ANTHROPIC_API_KEY
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else None
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)
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or os.environ.get("ANTHROPIC_API_KEY")
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)
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kwargs = {
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"model": endpoint.model_name,
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"temperature": endpoint.temperature,
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"api_key": api_key,
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"timeout": endpoint.timeout_seconds,
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}
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budget = endpoint.thinking_budget
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if not budget and endpoint.reasoning_effort:
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effort_map = {"low": 2048, "medium": 8192, "high": 32768}
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budget = effort_map.get(endpoint.reasoning_effort.lower())
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if budget:
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kwargs["thinking"] = {"type": "enabled", "budget_tokens": budget}
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kwargs["temperature"] = 1.0
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return ChatAnthropic(**{k: v for k, v in kwargs.items() if v is not None})
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elif provider == ModelProvider.OPENROUTER:
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from langchain_openai import ChatOpenAI
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api_key = (
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endpoint.api_key
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or (
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settings.OPEN_ROUTER_API_KEY.get_secret_value()
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if settings.OPEN_ROUTER_API_KEY
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else None
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)
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or os.environ.get("OPEN_ROUTER_API_KEY")
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)
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return ChatOpenAI(
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model=endpoint.model_name,
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temperature=endpoint.temperature,
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api_key=api_key,
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base_url=endpoint.api_base or "https://openrouter.ai/api/v1",
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timeout=endpoint.timeout_seconds,
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)
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elif provider == ModelProvider.XAI:
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from langchain_openai import ChatOpenAI
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api_key = (
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endpoint.api_key
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or (settings.XAI_API_KEY.get_secret_value() if settings.XAI_API_KEY else None)
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or os.environ.get("XAI_API_KEY")
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)
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return ChatOpenAI(
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model=endpoint.model_name,
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temperature=endpoint.temperature,
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api_key=api_key,
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base_url=endpoint.api_base or "https://api.x.ai/v1",
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timeout=endpoint.timeout_seconds,
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)
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elif provider in (ModelProvider.OLLAMA, ModelProvider.VLLM, ModelProvider.CUSTOM):
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from langchain_openai import ChatOpenAI
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api_key = endpoint.api_key or os.environ.get("OPENAI_API_KEY", "EMPTY")
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base_url = endpoint.api_base or os.environ.get(
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"OPENAI_BASE_URL", "http://localhost:8000/v1"
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)
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kwargs = {
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"model": endpoint.model_name,
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"temperature": endpoint.temperature,
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"max_tokens": endpoint.max_tokens,
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"api_key": api_key,
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"base_url": base_url,
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"timeout": endpoint.timeout_seconds,
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}
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if endpoint.reasoning_effort:
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kwargs["reasoning_effort"] = endpoint.reasoning_effort
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return ChatOpenAI(**{k: v for k, v in kwargs.items() if v is not None})
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else:
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raise ValueError(f"Unsupported model provider: {provider}")
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class ModelRouter:
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"""Dynamic router mapping agent roles to primary and fallback model endpoints."""
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def __init__(self, default_model: str = "gemini-2.5-flash"):
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self.default_endpoint = ModelEndpoint(
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provider=ModelProvider.GOOGLE,
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model_name=default_model,
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)
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self._role_routes: dict[str, ModelEndpoint] = {}
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self._fallback_routes: dict[str, list[ModelEndpoint]] = {}
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self._setup_default_routes()
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def _setup_default_routes(self) -> None:
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"""Initializes recommended role mappings."""
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self._role_routes["planner"] = ModelEndpoint(
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provider=ModelProvider.GOOGLE,
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model_name="gemini-2.5-pro",
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temperature=0.2,
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)
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self._role_routes["operator"] = ModelEndpoint(
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provider=ModelProvider.GOOGLE,
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model_name="gemini-2.5-flash",
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temperature=0.0,
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)
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self._role_routes["validator"] = ModelEndpoint(
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provider=ModelProvider.GOOGLE,
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model_name="gemini-2.5-pro",
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temperature=0.1,
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)
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self._role_routes["summarizer"] = ModelEndpoint(
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provider=ModelProvider.GOOGLE,
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model_name="gemini-2.5-flash",
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temperature=0.0,
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)
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self._fallback_routes["planner"] = [
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ModelEndpoint(provider=ModelProvider.GOOGLE, model_name="gemini-2.5-flash"),
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]
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def set_role_route(
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self,
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role: str,
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endpoint: ModelEndpoint | str,
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fallbacks: list[ModelEndpoint] | None = None,
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) -> None:
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"""Configures or overrides a route for a specific agent role."""
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if isinstance(endpoint, str):
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endpoint = ModelEndpoint(model_name=endpoint)
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self._role_routes[role.lower()] = endpoint
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if fallbacks is not None:
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self._fallback_routes[role.lower()] = fallbacks
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def get_endpoint(self, role: str) -> ModelEndpoint:
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"""Retrieves the configured primary model endpoint for a role."""
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return self._role_routes.get(role.lower(), self.default_endpoint)
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def get_fallbacks(self, role: str) -> list[ModelEndpoint]:
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"""Retrieves fallback endpoints for a role."""
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return self._fallback_routes.get(role.lower(), [])
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def instantiate_model(self, endpoint: ModelEndpoint) -> BaseChatModel:
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"""Instantiates a concrete LangChain chat model via the unified ModelFactory."""
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return ModelFactory.create_model(endpoint)
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def create_chat_model(self, role: str) -> BaseChatModel:
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"""Creates a chat model with configured fallbacks for the specified role."""
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primary_endpoint = self.get_endpoint(role)
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primary_model = self.instantiate_model(primary_endpoint)
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fallbacks = self.get_fallbacks(role)
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if fallbacks:
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fallback_models = [self.instantiate_model(ep) for ep in fallbacks]
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return primary_model.with_fallbacks(fallback_models)
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return primary_model
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# Global singleton router instance
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default_router = ModelRouter()
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