@tradejs/strategy-trading-patterns

TradeJS strategy plugin providing TradingPatterns on the 15m and 1h timeframes (INTERVAL: "15" | "60"), with 60 as the default. Geometry is expressed in candles, so changing the interval changes each pattern's duration.

Included patterns

• Diamond
• Flag
• Gartley
• HeadAndShoulders

Every detector is evaluated on every candle so its replay state stays current. When several patterns signal on the same candle, TRADING_PATTERNS_PRIORITY selects one decision. The default order is the list above. The selected child keeps ownership of the position and is the only child allowed to request an early pattern exit. Stop-loss and take-profit handling remains with TradeJS.

The package imports each detector through its public strategy package. Pattern geometry, risk plans, figures, and AI context therefore stay owned by their source packages instead of being copied into this repository.

Disabled patterns and Bat were removed from the composition. Existing configs must remove their toggle entries, priority entries and pattern-specific fields. The parser rejects removed patterns rather than silently ignoring them. The standalone child packages are unchanged by this composition cleanup.

Install

yarn add @tradejs/strategy-trading-patterns \
  @tradejs/strategy-diamond \
  @tradejs/strategy-flag \
  @tradejs/strategy-gartley \
  @tradejs/strategy-head-and-shoulders

Register the package in tradejs.config.ts:

import { defineConfig } from "@tradejs/core/config";

export default defineConfig({
  strategies: ["@tradejs/strategy-trading-patterns"],
});

All detectors are enabled by default. The default directional switches from their source packages are preserved. For example, the current HeadAndShoulders default keeps its experimental inverse direction disabled.

{
  TradingPatterns: {
    INTERVAL: "60",
    TRADING_PATTERNS: {
      Diamond: {
        enable: true,
        LONG: { enable: true, minRiskRatio: 1.15 },
        SHORT: { enable: true, minRiskRatio: 1.15 }
      },
      Flag: {
        enable: true,
        LONG: { enable: true, minRiskRatio: 0.7 },
        SHORT: { enable: true, minRiskRatio: 0.5 }
      }
      // Other pattern entries are materialized from defaults.
    }
  }
}

Pattern-specific fields keep their existing names, such as DIAMOND_PIVOT_LENGTH, FLAG_PIVOT_RADIUS, and GARTLEY_MIN_AD_RETRACEMENT_RATIO. They can be tuned in the same TradingPatterns config without changing the composition code.

Top-level LONG.enable and SHORT.enable are master switches. Their minRiskRatio values are optional common floors; the default floor is 0, so each pattern's own directional threshold remains authoritative.

Development

yarn install --immutable
yarn checks

Runtime host contract

All @tradejs/* runtime packages are peer dependencies. The consuming TradeJS Project owns their exact installed versions and package manifest, so this package never loads hidden nested framework or strategy copies.