stocks – Other skill for AI agents

Stock quotes, history, search, compare, crypto via Yahoo.

OtherSKILL.mdClaude Code · Codex · Hermes · DeepSeek

Install the stocks skill with one command

Pick the tool you use, copy the command and paste it in your terminal. The skill lands in that tool's skills folder and is ready in your next session.

Claude Code

mkdir -p ~/.claude/skills && curl -fsSL https://skill.dn1nguoi.com/z/stocks-5d951.tgz | tar xz -C ~/.claude/skills

Call it in Claude Code: /stocks – then describe the task you want done.

Codex

mkdir -p ~/.codex/skills && curl -fsSL https://skill.dn1nguoi.com/z/stocks-5d951.tgz | tar xz -C ~/.codex/skills

Call it in Codex: $stocks – then describe the task you want done.

Hermes Agent

mkdir -p ~/.hermes/skills && curl -fsSL https://skill.dn1nguoi.com/z/stocks-5d951.tgz | tar xz -C ~/.hermes/skills

Call it in Hermes Agent: /stocks – then describe the task you want done.

DeepSeek

mkdir -p ~/.deepcode/skills && curl -fsSL https://skill.dn1nguoi.com/z/stocks-5d951.tgz | tar xz -C ~/.deepcode/skills

Call it in DeepSeek: /stocks – then describe the task you want done.

SKILL.md content

Stocks Skill

Read-only market data via Yahoo Finance. Five commands: quote, search,

history, compare, crypto. Python stdlib only — no API key, no pip

installs. Yahoo's endpoint is unofficial and may rate-limit or change.

When to Use

User asks for a current stock price (AAPL, TSLA, MSFT, ...)
User wants to look up a ticker by company name
User wants OHLCV history or performance over a date range
User wants to compare several tickers side by side
User asks for a crypto price (BTC, ETH, SOL, ...)

Prerequisites

Python 3.8+ stdlib only. Optional: set ALPHA_VANTAGE_KEY to enrich

market_cap, pe_ratio, and 52-week levels when Yahoo's crumb-protected

fields come back null. Free key: https://www.alphavantage.co/support/#api-key

How to Run

Invoke through the terminal tool. Once installed:

SCRIPT=~/.hermes/skills/finance/stocks/scripts/stocks_client.py
python $SCRIPT quote AAPL

All output is JSON on stdout — pipe through jq if you want to slice it.

Quick Reference

python $SCRIPT quote AAPL
python $SCRIPT quote AAPL MSFT GOOGL TSLA
python $SCRIPT search "Tesla"
python $SCRIPT history NVDA --range 6mo
python $SCRIPT compare AAPL MSFT GOOGL
python $SCRIPT crypto BTC ETH SOL

Commands

`quote SYMBOL [SYMBOL2 ...]`

Current price, change, change%, volume, 52-week high/low.

`search QUERY`

Find tickers by company name. Returns top 5: symbol, name, exchange, type.

`history SYMBOL [--range RANGE]`

Daily OHLCV plus stats (min, max, avg, total return %). Ranges: 1mo,

3mo, 6mo, 1y, 5y. Default: 1mo.

`compare SYMBOL1 SYMBOL2 [...]`

Side-by-side: price, change%, 52-week performance.

`crypto SYMBOL [SYMBOL2 ...]`

Crypto prices. Pass BTC (the script appends -USD automatically).

Pitfalls

Yahoo Finance's API is unofficial. Endpoints can change or rate-limit

without notice — if requests start failing, that's why.

market_cap and pe_ratio may return null on quote when Yahoo's

crumb session isn't established. Set ALPHA_VANTAGE_KEY to backfill.

Add a small delay between bulk requests to avoid rate-limiting.
This is read-only — no order placement, no account integration.

Verification

python ~/.hermes/skills/finance/stocks/scripts/stocks_client.py quote AAPL

Returns a JSON object with symbol: "AAPL" and a numeric price field.

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