indicator-chart

Create an interactive Plotly chart for a technical indicator on a symbol.

Arguments

Parse $ARGUMENTS as: indicator symbol exchange interval

• $0 = indicator name (e.g., ema, rsi, macd, supertrend, bbands, adx, stochastic, ichimoku, obv, vwap). Default: ema
• $1 = symbol (e.g., SBIN, RELIANCE, NIFTY, AAPL). Default: SBIN
• $2 = exchange (e.g., NSE, BSE, NFO, NSE_INDEX). Default: NSE. For US symbols use: YFINANCE
• $3 = interval (e.g., D, 1h, 5m). Default: D

If no arguments, ask the user which indicator and symbol they want.

Instructions

1. Read the indicator-expert skill rules for reference patterns
2. Create charts/{indicator_name}/ directory if it doesn't exist (on-demand)
3. Create a .py file in charts/{indicator_name}/ named {symbol}_{indicator}_chart.py
4. Use the matching template from rules/assets/{indicator}_chart/chart.py as starting point (if available)
5. The script must:
   • Load .env from project root using find_dotenv()
   • Fetch data via OpenAlgo client.history() (or yfinance for US symbols)
   • Normalize data: convert index to datetime, sort, strip timezone
   • Compute the indicator using openalgo.ta
   • Create a Plotly chart with template="plotly_dark" and xaxis_type="category"
   • Overlay indicators (EMA, Bollinger, Supertrend, Ichimoku) go on the candlestick panel
   • Subplot indicators (RSI, MACD, Stochastic, ADX, Volume, OBV) go below in separate panels
   • Use make_subplots for multi-panel layouts
   • Add horizontal reference lines where appropriate (RSI 30/70, Stochastic 20/80)
   • Print a plain-language explanation of the current indicator reading
   • Save chart as HTML: {symbol}_{indicator}_chart.html
   • Show chart with fig.show()
6. Never use icons/emojis in code or output

Indicator Chart Types

Overlay Indicators (on candlestick panel)

Indicator	Chart Type
ema, sma, wma, dema, tema, hma	Line overlay
bbands	Fill-between bands + midline
supertrend	Color-coded line (green=up, red=down)
ichimoku	5 lines + cloud fill
keltner, donchian	Fill-between channels
sar	Dot markers above/below price
ma-envelopes	Upper/lower band lines

Subplot Indicators (separate panel below)

Indicator	Chart Type
rsi	Line + horizontal 30/70 zones
macd	Line + signal + histogram bars
stochastic	K% + D% lines + 20/80 zones
adx	DI+, DI-, ADX lines + 25 threshold
cci	Line + horizontal +100/-100 zones
williams_r	Line + -20/-80 zones
obv	Line (cumulative)
mfi	Line + 20/80 zones
volume	Bar chart (green/red by price direction)
atr	Line (volatility)

Multi-Indicator Charts

If user asks for "multi" or multiple indicators, create a comprehensive multi-panel chart with:

• Row 1: Candlestick + EMA overlays
• Row 2: RSI(14)
• Row 3: MACD(12,26,9)
• Row 4: Volume bars

Signal Markers

If the indicator generates clear buy/sell signals (e.g., crossover, supertrend direction change), add triangle markers:

• Buy: green triangle-up markers
• Sell: red triangle-down markers

Data Periods

Interval	Default Lookback
D	1 year (365 days)
1h	6 months (180 days)
15m, 30m	3 months (90 days)
5m	1 month (30 days)
1m	7 days

Plain-Language Explanation

After creating the chart, print a brief explanation:

SBIN — RSI(14) Analysis
Current RSI: 42.3
Interpretation: Neutral zone (between 30-70). Neither overbought nor oversold.
Trend: RSI has been declining from 65 over the past 5 bars, suggesting weakening momentum.

Example Usage

/indicator-chart ema SBIN NSE D /indicator-chart rsi RELIANCE NSE D /indicator-chart macd AAPL YFINANCE D /indicator-chart supertrend NIFTY NSE_INDEX D /indicator-chart multi SBIN NSE D /indicator-chart bbands INFY NSE 1h