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Agent skill

Option Chain

by staskh in staskh/trading_skills

Get option chain data including calls and puts with strikes, bids, asks, volume, open interest, and implied volatility.

MITAuto-check passedBusiness, Finance & HR

Install Option Chain

skills CLI
$ npx skills add staskh/trading_skills --skill option-chain -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install staskh/trading_skills option-chain --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/staskh/trading_skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/option-chain .claude/skills/option-chain && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
option-chain
GitHub stars
374
Used in
1 other repo
Token cost
~371 tokens
SKILL.md length
139 words
Files
2 (incl. scripts)
Skills in repo
28
Repo updated
First seen
Licence
MIT

At a glance

Get option chain data including calls and puts with strikes, bids, asks, volume, open interest, and implied volatility.

  • User asks about options
  • SKILL.md covers Instructions, Arguments, Output and Dependencies, plus 1 more section
  • Runs Python scripts from its folder; calls uv
  • Option chain for a specific expiration date

What it does

Option Chain is an agent skill from staskh/trading_skills. Get option chain data including calls and puts with strikes, bids, asks, volume, open interest, and implied volatility. Use when user asks about options, option prices, calls, puts, or option chain for a specific expiration date.

Its SKILL.md is about 370 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including scripts (for example `scripts/options.py`).

It sits in Business, Finance & HR. The repository describes itself as: Claude powered advisor system for option traders. The licence is MIT.

When your agent uses it

  • User asks about options
  • Option chain for a specific expiration date

Example prompts

  • “/option-chain”

Requirements

  • Python 3

What it can do on your machine

Read from SKILL.md and the folder at commit b71a74f. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 1 file in scripts/ (Python), which the agent can run.

    Shell commands in SKILL.md call:

    • uv

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use uv, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Option Chain loads about 371 tokens when it runs. Until then it costs about 61 tokens; SKILL.md has 139 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~61
When it runs · the whole SKILL.md, loaded when a task matches
~371

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from staskh/trading_skills at commit b71a74f, republished under its MIT licence (© staskh). 139 words, ~371 tokens.

Download SKILL.mdSave it as .claude/skills/option-chain/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
option-chain
description
Get option chain data including calls and puts with strikes, bids, asks, volume, open interest, and implied volatility. Use when user asks about options, option prices, calls, puts, or option chain for a specific expiration date.
dependencies
trading-skills

Option Chain

Fetch option chain data from Yahoo Finance for a specific expiration date.

Instructions

Note: If uv is not installed or pyproject.toml is not found, replace uv run python with python in all commands below.

First, get available expiration dates:

bash
uv run python scripts/options.py SYMBOL --expiries

Then fetch the chain for a specific expiry:

bash
uv run python scripts/options.py SYMBOL --expiry YYYY-MM-DD

Arguments

  • SYMBOL - Ticker symbol (e.g., AAPL, SPY, TSLA)
  • --expiries - List available expiration dates only
  • --expiry YYYY-MM-DD - Fetch chain for specific date

Output

Returns JSON with:

  • calls - Array of call options with strike, bid, ask, volume, openInterest, impliedVolatility
  • puts - Array of put options with same fields
  • underlying_price - Current stock price for reference

Present data as a table. Highlight high volume/OI strikes and notable IV levels.

Dependencies

  • pandas
  • yfinance

Timezone

All timestamps and time-based calculations must use the America/New_York timezone. All JSON output must include generated_at (NY time string) and data_delay fields.

© staskh, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (scripts) in .claude/skills/option-chain of staskh/trading_skills.

  • SKILL.md
  • scripts/options.py

Open the folder on GitHubat commit b71a74f

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in staskh/trading_skills, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Option Chain next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Option Chain compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Option Chain this skillstaskh/trading_skills3741 repos~371Automated safety check: PassMIT
Technical Analysttradermonty/claude-trading-skills3k5 repos~4.6kAutomated safety check: PassMIT
Creating Financial ModelsChen-zexi/open-ptc-agent7294 repos~1.3kAutomated safety check: PassMIT
Stock APIzhangxiangliang/stock-api2k—~507Automated safety check: PassMIT
Theme Detectortradermonty/claude-trading-skills3k2 repos~4.9kAutomated safety check: PassMIT
Itr Walakaranb192/itr-wala871—~3.6kAutomated safety check: PassMIT

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Categories

Questions about Option Chain

What does Option Chain do?

Get option chain data including calls and puts with strikes, bids, asks, volume, open interest, and implied volatility. Option Chain is an agent skill from staskh/trading_skills. Get option chain data including calls and puts with strikes, bids, asks, volume, open interest, and implied volatility.

When should I use Option Chain?

Option Chain fits situations like: user asks about options; option chain for a specific expiration date.

How do I install Option Chain in Claude Code?

Run `npx skills add staskh/trading_skills --skill option-chain -a claude-code`. Or copy the skill folder (.claude/skills/option-chain in staskh/trading_skills) into .claude/skills/option-chain in your project. Claude Code loads it when a task matches its description.

How do I install Option Chain in Codex?

Run `npx skills add staskh/trading_skills --skill option-chain -a codex`. Or copy the skill folder (.claude/skills/option-chain in staskh/trading_skills) into .agents/skills/option-chain in your project. Codex loads it when a task matches its description.

Can I use Option Chain in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add staskh/trading_skills --skill option-chain -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/option-chain, .gemini/skills/option-chain, .github/skills/option-chain and .opencode/skills/option-chain in your project.

What does Option Chain need to run?

Going by SKILL.md and its folder, Option Chain needs Python for the scripts in its folder and the command-line tools its instructions call (uv). Our summary lists: Python 3.

Does Option Chain access the network?

SKILL.md contains no URLs. Its commands use uv, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Option Chain safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Option Chain use?

Option Chain is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Option Chain use?

About 371 tokens (SKILL.md is roughly 1.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Option Chain?

Skills that share tags, products or a category with Option Chain: Technical Analyst (tradermonty/claude-trading-skills, 3k stars), Creating Financial Models (Chen-zexi/open-ptc-agent, 729 stars), Stock API (zhangxiangliang/stock-api, 2k stars) and Theme Detector (tradermonty/claude-trading-skills, 3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Option Chain?

staskh (a GitHub user) maintains it in staskh/trading_skills, which has 374 GitHub stars. The repository holds 28 skills in this directory. The repository was last updated on September 28, 2026.

Source: staskh/trading_skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.