Pathfinder MCP Server

"""Configuration for Pathfinder MCP Server.""" import os from dataclasses import dataclass from typing import Literal @dataclass class ServerConfig: """Server configuration.""" # Transport settings transport: Literal["stdio", "sse"] = "stdio" host: str = "127.0.0.1" port: int = 8080 # Context settings max_context_tokens: int = 128_000 compact_threshold: float = 0.6 # 60% warn_threshold: float = 0.7 # 70% @classmethod def from_env(cls) -> "ServerConfig": """Load configuration from environment variables.""" transport_str = os.environ.get("PATHFINDER_TRANSPORT", "stdio").lower() transport: Literal["stdio", "sse"] = ( "sse" if transport_str == "sse" else "stdio" ) # Railway/cloud platforms inject PORT - use it if PATHFINDER_PORT not set default_port = os.environ.get("PORT", "8080") return cls( transport=transport, host=os.environ.get("PATHFINDER_HOST", "127.0.0.1"), port=int(os.environ.get("PATHFINDER_PORT", default_port)), max_context_tokens=int(os.environ.get("PATHFINDER_MAX_TOKENS", "128000")), ) # Global config instance config = ServerConfig.from_env()