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Mizan

by GoodTurnStudio · remote · no sign-in to list tools · v1.1.0 · published by GitHub user GoodTurnStudio

Shariah screening of US stocks under four standards, halal alternatives, purification and zakat.

Changes · 4
CompareRegistry entry

6 tools: 4 change things and 2 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http mizan https://goodturn-mcp.pages.dev/mizan/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

6 tools

Changes things 4Claude Code: ask
  • calculate_zakatZakat owed on cash, gold, silver, shares and business stock, using live gold and silver prices.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Zakat owed on cash, gold, silver, shares and business stock, using live gold and silver prices.

    Annotations the server declares

    • title: Zakat owed on cash, gold, silver, shares and business stock
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • purify_dividendHow much of a dividend to give to charity.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    How much of a dividend to give to charity. Returns the company's purification ratio (interest income over total revenue, from its latest 10-K that reports interest income; 'latest_annual_filing' and 'note' say when that is older than the latest 10-K) and, if a dividend amount is given, the amount to give to charity. For a company whose main business every standard excludes, 'business_screen' explains that purification does not make it permissible.

    Annotations the server declares

    • title: How much of a dividend to give to charity
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • screen_companyScreen one company against all four standards.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Screen one company against all four standards. Returns a 'say' sentence, the live price, the consolidated share count, the filing figures used, the business screen per standard ('business': main_business, by_standard pass/fail/review, excluded_under), and each standard's ratio, threshold and verdict. In each screens entry, 'compliant' is the overall verdict (false when that standard excludes the company's business, null when the business needs a closer look) and 'debt_compliant' is the debt test alone. Verdicts within one percent of a threshold are flagged borderline. A company name (for example nvidia) also works.

    Annotations the server declares

    • title: Screen one company against all four standards
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • screen_portfolioScreen a whole portfolio.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Screen a whole portfolio. Screens up to 15 holdings under all four standards and returns the share of the portfolio that is compliant under each, the holdings that fail, and a combined dividend purification ratio.

    Annotations the server declares

    • title: Screen a whole portfolio
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
Only reads 2Claude Code: allow
  • find_halal_alternativesHalal alternatives to a holding.No findings

    Why it is in this group

    • The name "find_halal_alternatives" says "find": a word for reading.
    Description, as the server wrote it
    Halal alternatives to a holding. Companies Mizan covers in the same industry (or the nearest related one) whose business is permitted and whose debt passes all four standards at the last quarter-end, largest first, plus Shariah index funds for US and UK investors. Screen a pick live with screen_company before buying.

    Annotations the server declares

    • title: Halal alternatives to a holding
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • list_standardsThe four standards, their denominators and thresholds.No findings

    Why it is in this group

    • The name "list_standards" says "list": a word for reading.
    Description, as the server wrote it
    The four standards, their denominators and thresholds. Screens a US-listed company against four published Shariah equity standards (AAOIFI, Dow Jones Islamic Market, S&P Shariah, MSCI Islamic), first on its business (prohibited industries each standard excludes) and then on its debt, using live...

    Annotations the server declares

    • title: The four standards, their denominators and thresholds
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http mizan https://goodturn-mcp.pages.dev/mizan/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__mizan__list_standards",
      "mcp__mizan__find_halal_alternatives"
    ],
    "ask": [
      "mcp__mizan__screen_company",
      "mcp__mizan__purify_dividend",
      "mcp__mizan__screen_portfolio",
      "mcp__mizan__calculate_zakat"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as mizan. Review it before you use it.