Agent skill

Market Screener

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

Screen equities, ETFs, and bonds using fundamental, technical, and quantitative criteria with multi-factor ranking and sector filtering.

MITAuto-check passedBusiness, Finance & HR

Install Market Screener

skills CLI
$ npx skills add CoWork-OS/CoWork-OS --skill market-screener -a claude-code

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

GitHub CLI
$ gh skill install CoWork-OS/CoWork-OS market-screener --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/market-screener .claude/skills/market-screener && 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
market-screener
GitHub stars
477
Token cost
~705 tokens
SKILL.md length
298 words
Files
3 (incl. scripts, references)
Skills in repo
46
Repo updated
First seen
Licence
MIT

At a glance

Screen equities, ETFs, and bonds using fundamental, technical, and quantitative criteria with multi-factor ranking and sector filtering.

  • Tasks that involve Stock and market analysis
  • SKILL.md covers Purpose, Routing, Trigger Examples and Parameters, plus 1 more section

What it does

Market Screener is an agent skill from CoWork-OS/CoWork-OS. Screen equities, ETFs, and bonds using fundamental, technical, and quantitative criteria with multi-factor ranking and sector filtering.

Its SKILL.md is about 710 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. 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

  • Tasks that involve Stock and market analysis

Example prompts

  • “/market-screener”

What it can do on your machine

Read from SKILL.md and the folder at commit 0ace02b. 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

Market Screener loads about 705 tokens when it runs, and up to ~3.1k if it reads all its reference files. Until then it costs about 38 tokens; SKILL.md has 298 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~38
When it runs · the whole SKILL.md, loaded when a task matches
~705
With references · SKILL.md plus every file in references/, read only if the agent opens them
~3.1k

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 0ace02b, republished under its MIT licence (© CoWork-OS). 298 words, ~705 tokens.

Download SKILL.mdSave it as .claude/skills/market-screener/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.
name
market-screener
description
Screen equities, ETFs, and bonds using fundamental, technical, and quantitative criteria with multi-factor ranking and sector filtering.
version
1.0.0
metadata.author
CoWork OS Contributors <info@coworkosapp.com>

Market Screener

Purpose

Screen equities, ETFs, and bonds using fundamental, technical, and quantitative criteria with multi-factor ranking and sector filtering.

Routing

  • Use when: Use when the user asks to screen or filter stocks, find investment ideas based on criteria, rank equities by metrics, build watchlists, or apply fundamental/technical screening rules to a market universe.
  • Do not use when: Do not use when the request is about analyzing a single known company (use Earnings Analyzer or DCF Valuation), optimizing a portfolio, or performing risk analysis.
  • Outputs: Outcome from Market Screener: ranked list of securities matching the screening criteria with composite scores, key metrics, and investment rationale for each match.
  • Success criteria: Returns a clearly ranked list of securities that match all specified criteria, with supporting metrics, sector classification, and brief rationale for inclusion.

Trigger Examples

Positive
  • Use the market-screener skill for this request.
  • Help me with market screener.
  • Use when the user asks to screen or filter stocks, find investment ideas based on criteria, rank equities by metrics, build watchlists, or apply fundamental/technical screening rules to a market universe.
  • Market Screener: provide an actionable result.
Negative
  • Do not use when the request is about analyzing a single known company (use Earnings Analyzer or DCF Valuation), optimizing a portfolio, or performing risk analysis.
  • Do not use market-screener for unrelated requests.
  • This request is outside market screener scope.
  • This is conceptual discussion only; no tool workflow is needed.

Parameters

NameTypeRequiredDescription
assetClassselectYesAsset class to screen
criteriastringYesScreening criteria (e.g., P/E < 15, ROE > 20%, dividend yield > 3%)
questionstringYesYour specific screening question
marketselectYesMarket region to screen
maxResultsselectYesMaximum number of results to return

Runtime Prompt

  • Current runtime prompt length: 1111 characters.
  • Runtime prompt is defined directly in ../market-screener.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/market-screener of CoWork-OS/CoWork-OS.

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

Open the folder on GitHubat commit 0ace02b

Compare with similar skills

Market Screener 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.

Market Screener compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Market Screener this skillCoWork-OS/CoWork-OS477—~705Automated safety check: PassMIT
Stock APIzhangxiangliang/stock-api2k—~507Automated safety check: PassMIT
Tushare Datazillionare/zillionare3222 repos~2.3kAutomated safety check: PassNone
Tradingview MCPatilaahmettaner/tradingview-mcp5k—~1.3kAutomated safety check: PassMIT
Digital Oraclekomako-workshop/digital-oracle878—~5.9kAutomated safety check: PassMIT
Longbridge Researchhelsome/folio2713 repos~2.1kAutomated safety check: PassMIT

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Questions about Market Screener

What does Market Screener do?

Screen equities, ETFs, and bonds using fundamental, technical, and quantitative criteria with multi-factor ranking and sector filtering. Market Screener is an agent skill from CoWork-OS/CoWork-OS. Screen equities, ETFs, and bonds using fundamental, technical, and quantitative criteria with multi-factor ranking and sector filtering.

When should I use Market Screener?

Market Screener fits situations like: tasks that involve Stock and market analysis.

How do I install Market Screener in Claude Code?

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

How do I install Market Screener in Codex?

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

Can I use Market Screener 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 market-screener -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/market-screener, .gemini/skills/market-screener, .github/skills/market-screener and .opencode/skills/market-screener in your project.

What does Market Screener need to run?

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

Does Market Screener 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 Market Screener 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 Market Screener use?

Market Screener 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 Market Screener use?

About 705 tokens (SKILL.md is roughly 2.8k 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 2.4k tokens, read only when the agent opens those files.

What are the alternatives to Market Screener?

Skills that share tags, products or a category with Market Screener: Stock API (zhangxiangliang/stock-api, 2k stars), Tushare Data (zillionare/zillionare, 322 stars), Tradingview MCP (atilaahmettaner/tradingview-mcp, 5k stars) and Digital Oracle (komako-workshop/digital-oracle, 878 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Market Screener?

CoWork-OS (a GitHub organization) maintains it in CoWork-OS/CoWork-OS, which has 477 GitHub stars. The repository holds 46 skills in this directory. The repository was last updated on October 9, 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.