Agent skill

Stock Analysis

by CoWork-OS in CoWork-OS/CoWork-OS

Analyze stocks, ETFs, and crypto using Yahoo Finance and Alpha Vantage.

MITAuto-check passedBusiness, Finance & HR

Install Stock Analysis

skills CLI
$ npx skills add CoWork-OS/CoWork-OS --skill stock-analysis -a claude-code

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

GitHub CLI
$ gh skill install CoWork-OS/CoWork-OS stock-analysis --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/CoWork-OS/CoWork-OS.git skills-src && mkdir -p .claude/skills && cp -r skills-src/resources/skills/stock-analysis .claude/skills/stock-analysis && 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
stock-analysis
GitHub stars
480
Token cost
~685 tokens
SKILL.md length
248 words
Files
3 (incl. scripts, references)
Skills in repo
46
Repo updated
First seen
Licence
MIT

At a glance

Analyze stocks, ETFs, and crypto using Yahoo Finance and Alpha Vantage.

  • The user asks about stock prices
  • SKILL.md covers Purpose, Routing, Trigger Examples and Parameters, plus 1 more section
  • Company financials
  • Portfolio analysis

What it does

Stock Analysis is an agent skill from CoWork-OS/CoWork-OS. Analyze stocks, ETFs, and crypto using Yahoo Finance and Alpha Vantage. Get real-time quotes, fundamentals (P/E, EPS, margins, balance sheet), technical indicators (RSI, MACD, Bollinger), dividends, earnings, options chains, analyst ratings, institutional holders, sector comparisons, and screening. Use when the user asks about stock prices, company financials, market trends, portfolio analysis, or any investment research.

Its SKILL.md is about 690 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including scripts and reference files (for example `references/full-guidance.md`).

It sits in Business, Finance & HR, covering Stock and market analysis and Financial analysis. It works with yfinance and Alpha Vantage. The repository describes itself as: Local-first personal agentic OS and everything app for coding, knowledge work, web design, automations, and artifacts. The licence is MIT.

When your agent uses it

  • The user asks about stock prices
  • Company financials
  • Portfolio analysis
  • Any investment research

Example prompts

  • “/stock-analysis”

What it can do on your machine

Read from SKILL.md and the folder at commit 518a7dd. 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/, which the agent can run.

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

  • Network

    No URLs in SKILL.md.

    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

Stock Analysis loads about 685 tokens when it runs, and up to ~5.5k if it reads all its reference files. Until then it costs about 110 tokens; SKILL.md has 248 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~110
When it runs · the whole SKILL.md, loaded when a task matches
~685
With references · SKILL.md plus every file in references/, read only if the agent opens them
~5.5k

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 CoWork-OS/CoWork-OS at commit 518a7dd, republished under its MIT licence (© CoWork-OS). 248 words, ~685 tokens.

Download SKILL.mdSave it as .claude/skills/stock-analysis/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.
name
stock-analysis
description
Analyze stocks, ETFs, and crypto using Yahoo Finance and Alpha Vantage. Get real-time quotes, fundamentals (P/E, EPS, margins, balance sheet), technical indicators (RSI, MACD, Bollinger), dividends, earnings, options chains, analyst ratings, institutional holders, sector comparisons, and screening. Use when the user asks about stock prices, company financials, market trends, portfolio analysis, or any investment research.
version
1.0.0
metadata.author
CoWork OS Contributors <info@coworkosapp.com>

Stock Analysis

Purpose

Analyze stocks, ETFs, and crypto using Yahoo Finance and Alpha Vantage. Get real-time quotes, fundamentals (P/E, EPS, margins, balance sheet), technical indicators (RSI, MACD, Bollinger), dividends, earnings, options chains, analyst ratings, institutional holders, sector comparisons, and screening. Use when the user asks about stock prices, company financials, market trends, portfolio analysis, or any investment research.

Routing

  • Use when: User asks about stock prices, company fundamentals, market analysis, investment research, portfolio review, technical indicators, options, dividends, earnings, or crypto prices
  • Do not use when: User asks about prediction markets (use polymarket skill), personal banking, or tax advice
  • Outputs: Stock quotes, fundamental analysis, technical indicators, analyst ratings, comparison tables, screening results, 8-dimensional scores
  • Success criteria: User receives accurate financial data with clear formatting, relevant context, and actionable insights

Trigger Examples

Positive
  • Use the stock-analysis skill for this request.
  • Help me with stock analysis.
  • User asks about stock prices, company fundamentals, market analysis, investment research, portfolio review, technical indicators, options, dividends, earnings, or crypto prices
  • Stock Analysis: provide an actionable result.
Negative
  • User asks about prediction markets (use polymarket skill), personal banking, or tax advice
  • Do not use stock-analysis for unrelated requests.
  • This request is outside stock analysis scope.
  • This is conceptual discussion only; no tool workflow is needed.

Parameters

NameTypeRequiredDescription
tickerstringNoStock ticker symbol (e.g., AAPL, MSFT, BTC-USD, ^GSPC)
analysis_typeselectNoType of analysis to perform

Runtime Prompt

  • Current runtime prompt length: 918 characters.
  • Runtime prompt is defined directly in ../stock-analysis.json.

© CoWork-OS, 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 2 other files (scripts, references) in resources/skills/stock-analysis of CoWork-OS/CoWork-OS.

  • SKILL.md
  • references/full-guidance.md
  • scripts/.gitkeep

Open the folder on GitHubat commit 518a7dd

Compare with similar skills

Stock Analysis 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.

Stock Analysis compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Stock Analysis this skillCoWork-OS/CoWork-OS480—~685Automated safety check: PassMIT
Vibe-Trading Finance ToolkitHKUDS/Vibe-Trading35k—~6.5kAutomated safety check: PassMIT
Earnings Recaphimself65/finance-skills3.4k—~1.7kAutomated safety check: PassMIT
Alpha Vantageagent-skills-hub/agent-skills-hub1122 repos~1.6kAutomated safety check: PassMIT
Macro Regime Detectortradermonty/claude-trading-skills3k1 repos~1.2kAutomated safety check: PassMIT
Stock Explorerfreestylefly/wesight946—~525Automated safety check: PassMIT

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  • Earnings Recap

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Questions about Stock Analysis

What does Stock Analysis do?

Analyze stocks, ETFs, and crypto using Yahoo Finance and Alpha Vantage. Stock Analysis is an agent skill from CoWork-OS/CoWork-OS. Analyze stocks, ETFs, and crypto using Yahoo Finance and Alpha Vantage.

When should I use Stock Analysis?

Stock Analysis fits situations like: the user asks about stock prices; company financials; portfolio analysis; any investment research.

How do I install Stock Analysis in Claude Code?

Run `npx skills add CoWork-OS/CoWork-OS --skill stock-analysis -a claude-code`. Or copy the skill folder (resources/skills/stock-analysis in CoWork-OS/CoWork-OS) into .claude/skills/stock-analysis in your project. Claude Code loads it when a task matches its description.

How do I install Stock Analysis in Codex?

Run `npx skills add CoWork-OS/CoWork-OS --skill stock-analysis -a codex`. Or copy the skill folder (resources/skills/stock-analysis in CoWork-OS/CoWork-OS) into .agents/skills/stock-analysis in your project. Codex loads it when a task matches its description.

Can I use Stock Analysis 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 CoWork-OS/CoWork-OS --skill stock-analysis -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/stock-analysis, .gemini/skills/stock-analysis, .github/skills/stock-analysis and .opencode/skills/stock-analysis in your project.

What does Stock Analysis need to run?

SKILL.md names no scripts, command-line tools or credentials: Stock Analysis is instructions for the agent only.

Does Stock Analysis access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Stock Analysis 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 Stock Analysis use?

Stock Analysis 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 Stock Analysis use?

About 685 tokens (SKILL.md is roughly 2.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 4.8k tokens, read only when the agent opens those files.

What are the alternatives to Stock Analysis?

Skills that share tags, products or a category with Stock Analysis: Vibe-Trading Finance Toolkit (HKUDS/Vibe-Trading, 35k stars), Earnings Recap (himself65/finance-skills, 3.4k stars), Alpha Vantage (agent-skills-hub/agent-skills-hub, 112 stars) and Macro Regime 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 Stock Analysis?

CoWork-OS (a GitHub organization) maintains it in CoWork-OS/CoWork-OS, which has 480 GitHub stars. The repository holds 46 skills in this directory. The repository was last updated on October 11, 2026.

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