gauss314-skills

skills

Open-source collection of skills compatible with the SKILL.md standard. Developed for the AI courses at UCEMA.

Data — Global

Skills that extract market data (quotes, historical, fundamentals, screener, etc). Multi-country / global coverage: US, Europe, Asia, and global aggregators.

#	Skill	Type	Cost	API Key	Instruments
1	FRED Macro	API	✓ Free	Required	macro-data
2	Alpha Vantage	API	Freemium	Required	stocks, forex, commodities, fundamentals
3	Yahoo Finance	API/Scraper	✓ Free	-	stocks, forex, options, futures, fundamentals
4	SEC Data	API	✓ Free	-	fundamentals
5	Alpaca Data	API	✓ Free	Required	stocks, options
6	Finnhub	API	Freemium	Required	stocks, forex, fundamentals
7	Finviz	Scraper	✓ Free	-	stocks, fundamentals, screener
8	Macrotrends	Scraper	✓ Free	-	stocks, fundamentals
9	MarketScreener	Scraper	✓ Free	-	stocks, fundamentals, screener
10	MarketWatch	Scraper	✓ Free	-	stocks, options, futures, fundamentals
11	CompaniesMarketCap	Scraper	✓ Free	-	stocks, etfs
12	SimplyWallSt	API/Scraper	✓ Free	-	stocks, fundamentals
13	EarningsWhispers	API	✓ Free	-	fundamentals
14	Barchart	Scraper	✓ Free	-	stocks, futures, fundamentals
15	Nasdaq Data	API	✓ Free	-	stocks, options, fundamentals, etfs
16	CBOE Data	API	✓ Free	-	stocks, options, commodities, futures
17	Investing.com	Scraper	✓ Free	-	stocks, forex, commodities, options, futures, etfs, screener, fundamentals
18	Morningstar	API	✓ Free	-	screener
19	TradingView	API	✓ Free	-	stocks, etfs, bonds, options, futures, forex, crypto, screener, fundamentals
20	Google Finance	API	✓ Free	-	stocks, etfs, options, fundamentals
21	History of Market	API	✓ Free	-	indices history, sectors, macro

Data — Regional (Argentina)

Skills specific to the Argentine market: BCRA, BCBA, MAE, CAFCI, etc.

#	Skill	Type	Cost	API Key	Instruments
1	BCRA Macro	API	✓ Free	-	macro-data
2	Data912	API	✓ Free	-	stocks, forex, bonds, options, etfs
3	MAE	API	✓ Free	-	bonds, macro-data, forex
4	BYMA	API	✓ Free	-	stocks, bonds, options, etfs
5	CAFCI	API	✓ Free	-	etfs
6	INDEC	API	✓ Free	-	macro-data

Brokers

Skills that allow executing real trades (orders, positions, account) on broker accounts.

#	Skill	Type	Country	Instruments
1	Alpaca Trading	REST	USA	stocks, options
2	Primary	REST+WS	Argentina	futures
soon	Tradier
soon	Interactive Brokers
soon	Invertironline
soon	Portfolio Personal

Tools

Calculation and financial support tools (backtesting frameworks, screeners, options and greeks calculation, etc).

#	Skill	Concepts
1	Option pricing	Black-Scholes, Binomial CRR, Trinomial, Monte Carlo (antithetic), Longstaff-Schwartz, Bjerksund-Stensland/BAW (American), Heston (smile), Bates (smile + crashes), greeks (delta/gamma/vega/theta/rho), implied vol, P(ITM) and P(Profit). 15 CLI modes. Flat Python + numpy, 419k options/sec (BS)
2	Backtesting	Academic backtesting framework. 30+ risk/performance ratios, 10 classes of indicators, event-driven engine with 8 built-in strategies, Markowitz optimization, forward-looking simulation (Johnson SU + t-Copula), walk-forward CV, stress testing, fundamental analysis (Altman Z, Piotroski, DuPont). Flat Python + numpy, 33 checks validation suite.
3	Portfolio	Portfolio construction and optimization: Markowitz (scipy.optimize + Monte Carlo frontier), Black-Litterman (CAPM inverse prior, absolute/relative views, Idzorek omega, Bayesian posterior), HRP/HERC/NCO (hierarchical clustering, risk parity, nested clustered optimization with constraints). All flat numpy + scipy, no Riskfolio-Lib/PyPortfolioOpt required. 12 CLI modes, verified against real yfinance data matching library outputs exactly.

Installation

Install selected skills globally:

npx skills add gauss314/skills -g

Install all skills globally:

npx skills add gauss314/skills --all

Individual skills can also be installed with the commands in the tables below:

Data — Global

Skill	Command
FRED Macro	npx skills add gauss314/skills --skill fred-macro
Alpha Vantage	npx skills add gauss314/skills --skill alpha-vantage
Yahoo Finance	npx skills add gauss314/skills --skill yahoo-finance
SEC Data	npx skills add gauss314/skills --skill sec-data
Alpaca Data	npx skills add gauss314/skills --skill alpaca-data
Finnhub	npx skills add gauss314/skills --skill finnhub
Finviz	npx skills add gauss314/skills --skill finviz
Macrotrends	npx skills add gauss314/skills --skill macrotrends
MarketScreener	npx skills add gauss314/skills --skill marketscreener
MarketWatch	npx skills add gauss314/skills --skill marketwatch
CompaniesMarketCap	npx skills add gauss314/skills --skill companiesmarketcap
SimplyWallSt	npx skills add gauss314/skills --skill simplywallst
EarningsWhispers	npx skills add gauss314/skills --skill earningswhispers
Barchart	npx skills add gauss314/skills --skill barchart
Nasdaq Data	npx skills add gauss314/skills --skill nasdaq-data
CBOE Data	npx skills add gauss314/skills --skill cboe-data
Investing.com	npx skills add gauss314/skills --skill investing
Morningstar	npx skills add gauss314/skills --skill morningstar
TradingView	npx skills add gauss314/skills --skill tradingview
Google Finance	npx skills add gauss314/skills --skill google-finance
History of Market	npx skills add gauss314/skills --skill historyofmarket

Data — Regional (Argentina)

Skill	Command
BCRA Macro	npx skills add gauss314/skills --skill bcra-macro
Data912	npx skills add gauss314/skills --skill data912
MAE	npx skills add gauss314/skills --skill mae
BYMA	npx skills add gauss314/skills --skill byma
CAFCI	npx skills add gauss314/skills --skill cafci
INDEC	npx skills add gauss314/skills --skill indec

Brokers

Skill	Command
Alpaca Trading	npx skills add gauss314/skills --skill alpaca-trading
Primary	npx skills add gauss314/skills --skill primary

Tools

Skill	Command
Option pricing	npx skills add gauss314/skills --skill option-pricing
Backtesting	npx skills add gauss314/skills --skill backtesting
Portfolio	npx skills add gauss314/skills --skill portfolio

Structure

Each skill is a directory following the Agent Skills standard structure:

.
├── skills/
│   └── <skill-name>/
│       ├── SKILL.md           # required: frontmatter + instructions
│       ├── references/        # optional folder: complementary documentation
│       ├── scripts/           # optional folder: executable example scripts
│       └── assets/            # optional folder: templates, configs
├── README.md
├── LICENSE                    # MIT
└── .gitignore

How it works

The command npx skills add gauss314/skills --skill bcra-macro installs:

1. SKILL.md → loaded into the agent context when you use /bcra-macro
2. references/ → complementary documentation (catalogs, references)
3. scripts/ → executable scripts (Python, Bash, etc)
4. assets/ → templates, configs, auxiliary files

Files in references/, scripts/ and assets/ are loaded only when the skill needs them, following the Progressive Disclosure principle to optimize tokens.

SKILL.md format

---
name: skill-name
description: Short description (<100 characters)
license: MIT
---

# Skill Name

Instructions for the agent and SKILL content...

Required fields: name, description
Optional fields: license, metadata, disable-model-invocation

Installation

# Install a specific skill in the project
npx skills add gauss314/skills --skill bcra-macro


# Install all skills from the repo into the project
npx skills add gauss314/skills --all


# Global install (accessible to any of the user's projects)
npx skills add gauss314/skills --skill bcra-macro -g

Skill Description

Data — Global

FRED Macro: 840,000+ macroeconomic series from the Federal Reserve (GDP, CPI, rates, employment, M2, VIX, treasuries, mortgages). Historical series since 1996 with search by name/category, tags, releases, and daily/monthly/quarterly/annual frequencies. Official free API.

Alpha Vantage: 20+ global exchanges, 200,000+ tickers (stocks, forex, crypto, commodities). Freemium with 25 calls/day free. Covers TIME_SERIES_INTRADAY/DAILY/WEEKLY/MONTHLY, 50+ technical indicators, fundamental overview, FX rates, crypto ratings, commodities (metals, energy, grains).

Yahoo Finance: global coverage — stocks, ETFs, crypto, forex, bonds, indices, options, futures, fundamentals and news. Quotes delayed 15min, daily/intraday OHLCV, financial statements, options chains, futures on commodities and indices, news, analyst recommendations, insider transactions. Unofficial endpoints via direct HTTP requests (no wrapper).

SEC Data: all companies filing with the SEC (10K, 10Q, 8K) — US public companies + internationals using IFRS. Data from the last 5+ years with quarterly + annual. Concept-level data navigable. Supports US-GAAP and IFRS with automatic concept mapping. Income/balance/cashflow statements in JSON/CSV from XBRL facts.

Alpaca Data: 5,000+ US stocks + crypto + options with historical and real-time data. IEX feed. Snapshots, bars (OHLCV), trades, quotes. Multi-asset with symbol normalization. Generous free tier for historical data, real-time with limit.

Finnhub: 32 free REST endpoints with US/EU/UK coverage + forex + crypto. Quotes, company profile, financials, earnings calendar, recommendations trends, price targets, insider transactions, company peers, ESG scores, news, economic data, WebSocket. Freemium 60 calls/min.

Finviz: 8K+ US stocks (NYSE, NASDAQ, AMEX) + Canada. Fundamental data (P/E, EPS, PEG, margins), technical (RSI, MACD, SMA, ATR), insider trading, institutional ownership, news, online screener with filters (market cap, P/E, sector, performance). Scraper of the Finviz site.