trader-mcp/strategies/hello_world.py

from __future__ import annotations

from src.trader_mcp.strategy_sdk import Strategy


class Strategy(Strategy):
    LABEL = "Hello World"
    STRATEGY_PROFILE = {
        "expects": {},
        "avoids": {},
        "risk_profile": "demo",
        "capabilities": ["demo"],
    }
    TICK_MINUTES = 0.2
    CONFIG_SCHEMA = {
        "label": {"type": "string", "default": "hello world"},
    }
    STATE_SCHEMA = {
        "counter": {"type": "int", "default": 0},
    }

    def init(self):
        # Tiny demo state, useful for persistence smoke tests.
        return {"counter": 0}

    def on_tick(self, tick):
        self.state["counter"] += 1
        return self.state["counter"]

    def apply_policy(self):
        policy = super().apply_policy()
        self.state["policy_derived"] = dict(policy)
        return policy

    def report(self):
        snapshot = self.context.get_strategy_snapshot() if hasattr(self.context, "get_strategy_snapshot") else {}
        return {
            "identity": snapshot.get("identity", {}),
            "control": snapshot.get("control", {}),
            "fit": dict(getattr(self, "STRATEGY_PROFILE", {}) or {}),
            "position": snapshot.get("position", {}),
            "state": {
                "counter": self.state["counter"],
                "label": self.config.get("label", "hello world"),
            },
            "assessment": {
                "confidence": None,
                "uncertainty": None,
                "reason": "demo strategy",
                "warnings": [],
                "policy": dict(self.config.get("policy") or {}),
            },
            "execution": snapshot.get("execution", {}),
        }

    def render(self):
        return {
            "widgets": [
                {"type": "text", "label": "message", "value": self.config.get("label", "hello world")},
                {"type": "metric", "label": "ticks", "value": self.state["counter"]},
            ]
        }