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()

1. Never use icons/emojis in code or output

Indicator Chart Types

Overlay Indicators (on candlestick panel)

Subplot Indicators (separate panel below)

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

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