Indicators

OpenAlgo Indicator Skills for Agentic Coding Tools

A comprehensive collection of technical indicator skills for charting, analysis, and custom indicator development using OpenAlgo. Works with 40+ AI coding agents via skills.sh — including Claude Code, Cursor, Codex, OpenCode, Cline, Windsurf, GitHub Copilot, Gemini CLI, Roo Code, and more.

Supports Indian markets via OpenAlgo and US/Global markets via yfinance. Includes 100+ Numba-optimized indicators, Plotly dark-themed charts, Dash and Streamlit web dashboards, real-time WebSocket feeds, multi-symbol scanners, and a custom indicator builder with Numba JIT + NumPy.

Quick Install

Install the skills into your project using npx skills. The CLI auto-detects your AI coding agent and installs skills to the correct directory.

# GitHub shorthand
npx skills add marketcalls/openalgo-indicator-skills

# Full GitHub URL
npx skills add https://github.com/marketcalls/openalgo-indicator-skills

Install a specific skill only:

npx skills add marketcalls/openalgo-indicator-skills -s indicator-chart
npx skills add marketcalls/openalgo-indicator-skills -s custom-indicator
npx skills add marketcalls/openalgo-indicator-skills -s indicator-dashboard
npx skills add marketcalls/openalgo-indicator-skills -s indicator-scanner
npx skills add marketcalls/openalgo-indicator-skills -s live-feed
npx skills add marketcalls/openalgo-indicator-skills -s indicator-setup

List available skills before installing:

npx skills add marketcalls/openalgo-indicator-skills -l

Install globally (available across all projects):

npx skills add marketcalls/openalgo-indicator-skills -g

Supported AI Coding Agents

Skills are installed via skills.sh which supports 40+ agents. Each agent reads skills from its own directory:

Agent	Skills Directory
Claude Code	.claude/skills/
Cursor	.agents/skills/
Codex	.agents/skills/
OpenCode	.agents/skills/
Cline	.agents/skills/
Windsurf	.agents/skills/
GitHub Copilot	.agents/skills/
Gemini CLI	.agents/skills/
Roo Code	.agents/skills/
+ 30 more	Auto-detected by npx skills

The npx skills add command detects which agents you have installed and places the skill files in the correct paths automatically.

Supported Markets

Market	Data Source	Method	Example Symbols
India (Equity)	OpenAlgo	client.history()	SBIN, RELIANCE, INFY
India (Index)	OpenAlgo	client.history(exchange="NSE_INDEX")	NIFTY, BANKNIFTY
India (F&O)	OpenAlgo	client.history(exchange="NFO")	NIFTY30DEC25FUT
US/Global	yfinance	yf.download()	AAPL, MSFT, SPY

Market detection: If a symbol looks Indian (SBIN, RELIANCE, NIFTY), skills use OpenAlgo. If US (AAPL, MSFT), skills use yfinance. Automatic — no configuration needed.

Capabilities

Skills (User-Invocable Commands)

Command	What It Does
/indicator-setup	Detects OS, creates venv, installs all packages (openalgo, plotly, dash, streamlit, numba, yfinance, matplotlib, seaborn), configures .env with API keys
/indicator-chart	Charts any indicator on a symbol with Plotly dark theme — overlay or subplot, with signal markers and plain-language explanation
/custom-indicator	Creates a custom indicator using Numba JIT + NumPy — generates indicator.py + chart.py + benchmark.py
/indicator-dashboard	Builds a Plotly Dash or Streamlit web application — single-symbol, multi-symbol, multi-timeframe, or scanner dashboard
/indicator-scanner	Scans multiple symbols (NIFTY 50, BANKNIFTY stocks) with indicator conditions — RSI, EMA crossover, Supertrend, volume spike
/live-feed	Real-time indicator computation on WebSocket streaming data — LTP, quote, or depth mode with rolling buffer

Pre-Built Chart Templates (13)

Template	Type	Description
EMA Chart	Overlay	EMA(10/20/50) overlay with crossover signal markers
RSI Chart	Subplot	RSI(14) with overbought/oversold zones and color fills
MACD Chart	Subplot	MACD line + signal + histogram with color coding
Supertrend Chart	Overlay	Direction-colored Supertrend with buy/sell markers
Bollinger Chart	Overlay + Subplot	Bollinger Bands + %B + Bandwidth (squeeze detection)
Multi-Indicator	Multi-Panel	Candlestick + EMA + RSI + MACD + Volume with bias assessment
Basic Dashboard	Web App	Single-symbol Plotly Dash app with indicator checkboxes and stats cards
Multi Dashboard	Web App	Multi-timeframe Dash app (5m/15m/1h/D grid) with confluence detection
Streamlit Basic	Web App	Single-symbol Streamlit app with sidebar, metrics, plotly charts
Streamlit Multi	Web App	Multi-timeframe Streamlit app with confluence summary
Custom Indicator	Numba	Z-Score example with @njit core + pandas wrapper + benchmark
Live Feed	WebSocket	Real-time LTP feed with EMA/RSI computation on rolling buffer
Scanner	Multi-Symbol	NIFTY 50 scanner with 5 scan types (RSI, EMA, Supertrend, Volume)

Knowledge Base (12 Rule Files)

Category	What's Covered
Indicators	Complete 100+ indicator reference with signatures, parameters, return types. Trend (20), Momentum (9), Volatility (16), Volume (14), Oscillators (20+), Statistical (9), Hybrid (6+), Utilities
Data Fetching	OpenAlgo history/quotes/depth/intervals, yfinance for US/Global, data normalization (datetime index, sort, strip timezone), option chain API
Plotting	Plotly dark theme, candlestick overlays, multi-panel subplots, fill-between bands, color-coded direction, signal markers, save to HTML
Custom Indicators	Numba @njit(cache=True, nogil=True) template patterns, single/multi-output, NaN handling, DO/DON'T rules, performance tips
WebSocket Feeds	LTP/Quote/Depth subscription, polling stored data, unsubscribe/disconnect, real-time indicator computation with rolling buffer
Numba Optimization	OpenAlgo numba_shim config, decorator patterns, what works inside @njit, NaN handling (critical), cache management, warmup, algorithm complexity
Dash Dashboards	Dash app structure, multi-indicator layout, dynamic subplot callbacks, stats cards, auto-refresh with dcc.Interval
Streamlit Dashboards	Streamlit app structure, sidebar inputs, st.plotly_chart(), st.metric(), auto-refresh, scanner tables, dark theme
Multi-Timeframe	Fetch multiple timeframes, same indicator across TFs, confluence detection (all bullish/bearish/mixed), MTF grid chart
Signal Generation	Core 4-step pipeline, crossover/crossunder, ta.exrem() cleaning, common patterns (EMA, RSI, Supertrend, MACD, Bollinger, ADX)
Indicator Combinations	Category mixing rules, 6 combination patterns (Trend+Momentum, Triple Screen, BB+Keltner Squeeze, ADX+DI, Multi-Indicator Scorecard)
Symbol Format	OpenAlgo exchange codes (NSE, BSE, NFO, NSE_INDEX, MCX), equity/futures/options format, common index symbols

Prerequisites

1. AI Coding Agent

Install any supported AI coding agent. For example:

• Claude Code — npm install -g @anthropic-ai/claude-code

• Cursor — Desktop IDE with built-in AI

• Codex — npm install -g @openai/codex

• OpenCode — go install github.com/opencode-ai/opencode@latest

• Cline — VS Code extension

• Windsurf — Desktop IDE with AI

• Or any of the 40+ supported agents

Then install the skills:

npx skills add marketcalls/openalgo-indicator-skills

2. Data Source Setup

Indian Markets — requires OpenAlgo:

git clone https://github.com/marketcalls/openalgo.git
cd openalgo
pip install -r requirements.txt
python app.py

OpenAlgo runs locally at http://127.0.0.1:5000. You need a broker account connected via OpenAlgo and an API key from the dashboard. See OpenAlgo documentation.

US/Global Markets — no setup needed. Uses yfinance (public Yahoo Finance data).

3. Python Environment Setup

Use the /indicator-setup skill for automated setup, or manually:

python -m venv venv
source venv/bin/activate   # Linux/Mac
# venv\Scripts\activate    # Windows

pip install openalgo yfinance plotly dash dash-bootstrap-components streamlit numba numpy pandas python-dotenv websocket-client httpx scipy nbformat matplotlib seaborn ipywidgets

4. Configure API Keys

cp .env.sample .env
# Edit .env with your API keys

Usage Examples

/indicator-setup — Environment Setup

Detects OS, creates venv, installs all dependencies, and collects API keys into .env.

/indicator-setup
/indicator-setup python3.12

/indicator-chart — Chart Any Indicator

Create a Plotly chart with indicator overlays or subplots. Auto-detects overlay vs subplot positioning.

# Indian Markets
/indicator-chart ema SBIN NSE D
/indicator-chart rsi RELIANCE NSE D
/indicator-chart supertrend NIFTY NSE_INDEX 15m
/indicator-chart macd INFY NSE D
/indicator-chart bbands HDFCBANK NSE D

# US Markets
/indicator-chart ema AAPL
/indicator-chart rsi MSFT

/custom-indicator — Build Custom Indicators

Create a Numba-optimized custom indicator with chart and benchmark.

/custom-indicator zscore
/custom-indicator vwap-deviation
/custom-indicator momentum-squeeze

/indicator-dashboard — Web Dashboards

Build a Plotly Dash or Streamlit web application with live charts.

# Plotly Dash
/indicator-dashboard single SBIN
/indicator-dashboard multi-timeframe RELIANCE
/indicator-dashboard scanner-dashboard

# Streamlit
/indicator-dashboard streamlit-single SBIN
/indicator-dashboard streamlit-multi RELIANCE
/indicator-dashboard streamlit-scanner

/indicator-scanner — Scan Stocks

Screen multiple symbols with indicator conditions.

/indicator-scanner rsi-oversold
/indicator-scanner rsi-overbought
/indicator-scanner ema-crossover
/indicator-scanner supertrend-buy
/indicator-scanner volume-spike

/live-feed — Real-Time WebSocket

Stream live prices with indicator computation.

/live-feed SBIN NSE
/live-feed RELIANCE NSE quote
/live-feed NIFTY NSE_INDEX

Key Features

100+ Numba-Optimized Indicators

All indicators from the OpenAlgo ta library, compiled with Numba JIT for production-grade speed.

from openalgo import ta

ema_20 = ta.ema(close, 20)                    # ~0.3ms on 100K bars
rsi_14 = ta.rsi(close, 14)                    # ~1.8ms on 100K bars
st, dir = ta.supertrend(high, low, close)      # ~1.9ms on 100K bars
macd, sig, hist = ta.macd(close, 12, 26, 9)   # ~0.9ms on 100K bars

Plotly Dark Theme Charts

All charts use template="plotly_dark" with xaxis type="category" for candlesticks (no weekend gaps).

import plotly.graph_objects as go
fig = go.Figure()
fig.update_layout(template="plotly_dark", xaxis_type="category")

Custom Indicators with Numba

Build your own indicators with Numba @njit(cache=True, nogil=True) — never fastmath=True (breaks NaN handling).

from numba import njit
import numpy as np

@njit(cache=True, nogil=True)
def _my_indicator(data, period):
    n = len(data)
    result = np.full(n, np.nan)
    # Your logic here
    return result

Signal Cleaning with EXREM

Always use ta.exrem() after generating raw buy/sell signals — removes excess signals until the opposite occurs.

from openalgo import ta

buy_raw = ta.crossover(ema_fast, ema_slow).fillna(False)
sell_raw = ta.crossunder(ema_fast, ema_slow).fillna(False)
buy_clean = ta.exrem(buy_raw, sell_raw)
sell_clean = ta.exrem(sell_raw, buy_raw)

Real-Time WebSocket Feeds

Live indicator computation on streaming market data with rolling buffer.

from openalgo import api, ta

client = api(api_key=os.getenv("OPENALGO_API_KEY"))
client.connect()
client.subscribe_ltp(
    [{"exchange": "NSE", "symbol": "SBIN"}],
    on_data_received=on_data
)

Multi-Timeframe Confluence

Analyze the same symbol across 4 timeframes (5m, 15m, 1h, D) with trend alignment detection.

STRONG BULLISH — All timeframes aligned
STRONG BEARISH — All timeframes aligned
MIXED — 2/4 bullish

OpenAlgo Data Methods

Method	Purpose	Returns
client.history()	OHLCV candles	DataFrame
client.quotes()	Real-time snapshot	Dict
client.multiquotes()	Multi-symbol quotes	List of dicts
client.depth()	Market depth (L5)	Dict
client.intervals()	Available intervals	Dict
client.connect()	WebSocket connect	None
client.subscribe_ltp()	Live LTP stream	Callback
client.subscribe_quote()	Live quote stream	Callback
client.subscribe_depth()	Live depth stream	Callback

Output Folder Structure

Scripts go in appropriate directories, created on-demand. Each category folder is self-contained.

charts/
├── sbin_ema_chart.py
├── reliance_rsi_chart.py
└── nifty_supertrend_chart.py
dashboards/
├── sbin_dashboard/app.py
└── multi_timeframe/app.py
custom_indicators/
├── zscore/
│   ├── indicator.py
│   ├── chart.py
│   └── benchmark.py
└── momentum_squeeze/
    └── ...
scanners/
├── rsi_oversold_scanner.py
└── volume_spike_scanner.py

Project Structure

.
├── .claude/
│   └── skills/
│       ├── indicator-setup/             # /indicator-setup - Environment setup
│       │   └── SKILL.md
│       ├── indicator-chart/             # /indicator-chart - Chart any indicator
│       │   └── SKILL.md
│       ├── custom-indicator/            # /custom-indicator - Custom indicator builder
│       │   └── SKILL.md
│       ├── indicator-dashboard/         # /indicator-dashboard - Dash/Streamlit web apps
│       │   └── SKILL.md
│       ├── indicator-scanner/           # /indicator-scanner - Multi-symbol scanner
│       │   └── SKILL.md
│       ├── live-feed/                   # /live-feed - WebSocket real-time feed
│       │   └── SKILL.md
│       └── indicator-expert/            # Knowledge base (auto-loaded)
│           ├── SKILL.md                 # Main skill (modular reference hub)
│           └── rules/                   # 12 modular rule files
│               ├── indicator-catalog.md
│               ├── data-fetching.md
│               ├── plotting.md
│               ├── custom-indicators.md
│               ├── websocket-feeds.md
│               ├── numba-optimization.md
│               ├── dashboard-patterns.md
│               ├── streamlit-patterns.md
│               ├── multi-timeframe.md
│               ├── signal-generation.md
│               ├── indicator-combinations.md
│               ├── symbol-format.md
│               └── assets/              # Production-ready templates
│                   ├── ema_chart/chart.py
│                   ├── rsi_chart/chart.py
│                   ├── macd_chart/chart.py
│                   ├── supertrend_chart/chart.py
│                   ├── bollinger_chart/chart.py
│                   ├── multi_indicator/chart.py
│                   ├── dashboard_basic/app.py
│                   ├── dashboard_multi/app.py
│                   ├── streamlit_basic/app.py
│                   ├── streamlit_multi/app.py
│                   ├── custom_indicator/template.py
│                   ├── live_feed/template.py
│                   └── scanner/template.py
├── .env.sample                          # Environment template (copy to .env)
├── .gitignore
├── requirements.txt
└── README.md

Rule Files Reference

Rule File	Description
indicator-catalog.md	Complete 100+ indicator reference with signatures, parameters, return types
data-fetching.md	OpenAlgo history/quotes/depth, yfinance for US, data normalization, option chain
plotting.md	Plotly candlestick overlays, multi-panel subplots, signal markers, save to HTML
custom-indicators.md	Numba template patterns, single/multi-output, NaN handling, DO/DON'T rules
websocket-feeds.md	LTP/Quote/Depth subscription, rolling buffer, real-time indicator computation
numba-optimization.md	@njit patterns, NaN handling, cache management, warmup, O(n) algorithms
dashboard-patterns.md	Dash app structure, dynamic subplots, stats cards, auto-refresh
streamlit-patterns.md	Streamlit app structure, sidebar inputs, st.plotly_chart(), metrics, scanner tables
multi-timeframe.md	Multiple timeframes, confluence detection, MTF grid chart
signal-generation.md	4-step pipeline, crossover/crossunder, exrem cleaning, common patterns
indicator-combinations.md	Category mixing, 6 combination patterns, confluence analysis
symbol-format.md	Exchange codes, equity/futures/options format, NSE/BSE index symbols

Indicator Categories

Category	Count	Indicators
Trend	20	SMA, EMA, WMA, DEMA, TEMA, HMA, VWMA, ALMA, KAMA, ZLEMA, T3, FRAMA, Supertrend, Ichimoku, Chande Kroll Stop, TRIMA, McGinley, VIDYA, Alligator, MA Envelopes
Momentum	9	RSI, MACD, Stochastic, CCI, Williams %R, BOP, Elder Ray, Fisher Transform, Connors RSI
Volatility	16	ATR, Bollinger Bands, Keltner, Donchian, Chaikin Volatility, NATR, RVI, Ultimate Oscillator, True Range, Mass Index, BB %B, BB Width, Chandelier Exit, Historical Volatility, Ulcer Index, STARC
Volume	14	OBV, OBV Smoothed, VWAP, MFI, ADL, CMF, EMV, Force Index, NVI, PVI, Volume Oscillator, VROC, KVO, PVT
Oscillators	20+	CMO, TRIX, UO, Awesome Oscillator, Accelerator, PPO, PO, DPO, Aroon Oscillator, Stochastic RSI, RVI Oscillator, Chaikin Oscillator, Choppiness, KST, TSI, Vortex, Gator, STC, Coppock, ROC
Statistical	9	Linear Regression, LR Slope, Correlation, Beta, Variance, TSF, Median, Mode, Median Bands
Hybrid	6+	ADX, DMI, Aroon, Pivot Points, Parabolic SAR, Williams Fractals, RWI
Utilities	11	Crossover, Crossunder, Cross, Highest, Lowest, Change, ROC, StdDev, EXREM, FLIP, VALUEWHEN, Rising, Falling

Data Sources

Source	Use Case	Example Symbols	API Key Required
OpenAlgo	Indian markets (primary)	NSE: SBIN, RELIANCE. NFO: NIFTY30DEC25FUT. NSE_INDEX: NIFTY, BANKNIFTY	Yes (OPENALGO_API_KEY)
yfinance	US markets, global	AAPL, MSFT, SPY, ^GSPC, ^NSEI	No

Configuration

Copy the .env.sample and fill in your API keys:

cp .env.sample .env

The .env file supports:

# Indian Markets (OpenAlgo)
OPENALGO_API_KEY=your_openalgo_api_key_here
OPENALGO_HOST=http://127.0.0.1:5000

US market data via yfinance does not require an API key.

License

MIT