gracefullightCommunity·8 Agent Skills Included

stock-checker

Stock screening, signal scoring, backtesting, and portfolio analysis

Screens US equities with an institutional-flow signal engine and validates every strategy change with an 8-year backtest. Fetches Yahoo Finance quotes, computes technical indicators, scores buy/sell signals, and tracks portfolios without manual spreadsheet work. Ships a CLI, API, and web screener so agents and users can run predictions, optimizations, and nightly data updates automatically.

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npx skills add gracefullight/stock-checker --all -g -y

Available:

Tells the agent how to route requests to the bundled skills and workflows, dispatch subagents per vendor, and follow project rules when working in this repository.

All Skills in This Repository (8)

Pure Emerald Level Indicators

📦 In Repo

gracefullight

typescript-type-expert

Guide advanced TypeScript type-level programming with structured patterns.

typescript-expert

Analyze TypeScript projects for type-level programming, performance, and monorepo strategy.

biome-validator

Validate Biome configurations against schema and version requirements.

stock-analysis

Consolidate stock and crypto price, indicator, and sentiment data into investment signals.

Financial Data Fetcher

Fetch OHLCV data, fundamentals, news, and market snapshots via JSON APIs.

backtesting-trading-strategies

Backtest trading strategies against historical data and export performance metrics.

trading-analysis

Generate investment reports for stocks and ETFs using Yahoo Finance data.

yahoo-finance

Retrieve stock prices, fundamentals, earnings, options, dividends, and analyst ratings via a Python CLI.

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Frequently Asked Questions

FAQPage Schema

How to install stock-checker?▼

Run `npx skills add gracefullight/stock-checker --all -g -y` in your terminal to install all skills in this suite globally.

What does stock-checker actually do?▼

It screens US stocks with an institutional-flow signal engine, computes technical indicators, and validates strategies with an 8-year backtest across 546 tickers. Results ship as CSV reports, a web screener UI, and optional Slack alerts.

How accurate is the stock-checker signal?▼

The shipped gate shows a 60.4% five-day win rate with 1.28 reward-risk over 225 trades, net of transaction costs. It is designed for liquid large-cap stocks only.

Can I analyze crypto and manage a portfolio?▼

Yes. The bundled stock-analysis skill covers the top 20 cryptocurrencies and lets you create portfolios, add positions, and view profit and loss with periodic returns.

Does stock-checker work with Claude Code and Cursor?▼

Yes. All skills follow the standard SKILL.md format and run in Claude Code, Cursor, Codex, and other compatible runtimes.