Individual skill

cross-market-strategy

Write signal_engine.py for portfolios spanning multiple markets (A-shares + crypto, equity + forex, etc.)

agent/src/skills/cross-market-strategy/SKILL.md

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## When to Use

When the user requests a backtest with codes from **different markets** — e.g. `["000001.SZ", "BTC-USDT"]`, `["TD.TO", "PNG.V"]`, or `["AAPL.US", "EUR/USD", "600519.SH"]`.

The `CompositeEngine` handles calendar alignment, shared capital, and market rules automatically. The strategy only needs to output per-symbol signals.

## Key Concepts

### 1. Market Classification in generate()

Group symbols by market type and apply market-specific indicator parameters:

```python
def generate(self, data_map):
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