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com.fitiny/moissanite-tools

by fitiny.com · remote · no sign-in to list tools · v1.0.0 · published by com.fitiny

FITINY jewellery tools: density-corrected carat/mm, GIA grades, ISO 8653 ring sizes

Changes · 6
CompareRegistry entry

6 tools: 6 change things.

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 moissanite-tools https://mcp.fitiny.com/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 6Claude Code: ask
  • carat_to_mmDiameter in millimetres for a given carat weight.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.
    Description, as the server wrote it
    Diameter in millimetres for a given carat weight. Round brilliant cut. Density-corrected per stone - a diamond chart is wrong for moissanite by ~9%.
  • grading_scaleGIA colour (D-K) or clarity (FL-SI) scale as used for moissanite, or published optical constants for moissanite / diamond / cubic zirconia.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.
    Description, as the server wrote it
    GIA colour (D-K) or clarity (FL-SI) scale as used for moissanite, or published optical constants for moissanite / diamond / cubic zirconia.
  • mm_to_caratCarat weight for a given diameter in millimetres.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.
    Description, as the server wrote it
    Carat weight for a given diameter in millimetres. Round brilliant cut.
  • necklace_lengthWhere a necklace of a given length sits, with the trade name (choker, princess, matinee...).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.
    Description, as the server wrote it
    Where a necklace of a given length sits, with the trade name (choker, princess, matinee...).
  • ring_size_convertConvert a ring size between US, UK, EU (ISO 8653) and inner diameter in mm.No findings

    Why it is in this group

    • The name "ring_size_convert" says "convert": a word for a change.
    Description, as the server wrote it
    Convert a ring size between US, UK, EU (ISO 8653) and inner diameter in mm. A US 6 is a UK M, not a UK 6.
  • stud_appearanceHow a round stud of a given stone diameter reads on the ear.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.
    Description, as the server wrote it
    How a round stud of a given stone diameter reads on the ear.

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 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http moissanite-tools https://mcp.fitiny.com/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": [],
    "ask": [
      "mcp__moissanite-tools__carat_to_mm",
      "mcp__moissanite-tools__mm_to_carat",
      "mcp__moissanite-tools__grading_scale",
      "mcp__moissanite-tools__ring_size_convert",
      "mcp__moissanite-tools__necklace_length",
      "mcp__moissanite-tools__stud_appearance"
    ],
    "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 moissanite-tools. Review it before you use it.