indicator-chart

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Chart any technical indicator on a symbol using Plotly. Creates interactive dark-themed charts with candlestick, overlays, and subplots. Supports all 100+ openalgo.ta indicators.

2installs

Sourcemarketcalls/openalgo-indicator-skills

Added on2026-03-06

NPX Install

npx skill4agent add marketcalls/openalgo-indicator-skills indicator-chart

SKILL.md Content

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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

Read the indicator-expert skill rules for reference patterns
Create
```
charts/{indicator_name}/
```
directory if it doesn't exist (on-demand)

Create a

.py

file in

charts/{indicator_name}/

named

{symbol}_{indicator}_chart.py

Use the matching template from
```
rules/assets/{indicator}_chart/chart.py
```
as starting point (if available)
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()
```
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