format_number_european

Instructions

Implementation Reference

• index.js:261-276 (handler)

  The tool handler function for 'format_number_european' — formats a number using European locale conventions (decimal and thousands separators) via Intl.NumberFormat. Maps country codes to locale strings and returns the formatted result.

  // ── 11. Format Number European ──
  server.registerTool("format_number_european", {
    description: "Formats a number using the locale conventions of a specific European country — correct decimal and thousands separators. Returns { original, formatted, locale, country_code }. Supports PT, ES, FR, DE, IT, NL, BE, PL, SE, DK, FI, AT, IE, GR, HU, RO, UK.",
    inputSchema: {
      number: z.number().describe("The numeric value to format. Example: 1234.56"),
      country_code: z.string().describe("Two-letter country code. Example: 'PT', 'FR', 'DE'"),
      decimals: z.number().optional().describe("Number of decimal places. Defaults to 2.")
    },
    outputSchema: { original: z.number(), formatted: z.string(), locale: z.string(), country_code: z.string() },
        annotations: { title: "Format Number European Locale", readOnlyHint: true, idempotentHint: true, openWorldHint: false }
  }, async ({ number, country_code, decimals = 2 }) => {
    const localeMap = { PT:"pt-PT",ES:"es-ES",FR:"fr-FR",DE:"de-DE",IT:"it-IT",NL:"nl-NL",BE:"fr-BE",PL:"pl-PL",SE:"sv-SE",DK:"da-DK",FI:"fi-FI",AT:"de-AT",IE:"en-IE",GR:"el-GR",HU:"hu-HU",RO:"ro-RO",UK:"en-GB" };
    const locale = localeMap[country_code.toUpperCase()] || "en-GB";
    const formatted = new Intl.NumberFormat(locale, { minimumFractionDigits: decimals, maximumFractionDigits: decimals }).format(number);
    return { content: [{ type: "text", text: JSON.stringify({ original: number, formatted, locale, country_code }) }] };
  });

• index.js:262-270 (registration)

  Registration of the 'format_number_european' tool on the MCP server via server.registerTool(), including description and input/output schemas.

  server.registerTool("format_number_european", {
    description: "Formats a number using the locale conventions of a specific European country — correct decimal and thousands separators. Returns { original, formatted, locale, country_code }. Supports PT, ES, FR, DE, IT, NL, BE, PL, SE, DK, FI, AT, IE, GR, HU, RO, UK.",
    inputSchema: {
      number: z.number().describe("The numeric value to format. Example: 1234.56"),
      country_code: z.string().describe("Two-letter country code. Example: 'PT', 'FR', 'DE'"),
      decimals: z.number().optional().describe("Number of decimal places. Defaults to 2.")
    },
    outputSchema: { original: z.number(), formatted: z.string(), locale: z.string(), country_code: z.string() },
        annotations: { title: "Format Number European Locale", readOnlyHint: true, idempotentHint: true, openWorldHint: false }

• index.js:264-268 (schema)

  Input schema for format_number_european: number (required), country_code (required), decimals (optional, defaults to 2). Output schema: original, formatted, locale, country_code.

  inputSchema: {
    number: z.number().describe("The numeric value to format. Example: 1234.56"),
    country_code: z.string().describe("Two-letter country code. Example: 'PT', 'FR', 'DE'"),
    decimals: z.number().optional().describe("Number of decimal places. Defaults to 2.")
  },

• index.js:272-273 (helper)

  Helper mapping of country codes to locale strings used for Intl.NumberFormat formatting.

  const localeMap = { PT:"pt-PT",ES:"es-ES",FR:"fr-FR",DE:"de-DE",IT:"it-IT",NL:"nl-NL",BE:"fr-BE",PL:"pl-PL",SE:"sv-SE",DK:"da-DK",FI:"fi-FI",AT:"de-AT",IE:"en-IE",GR:"el-GR",HU:"hu-HU",RO:"ro-RO",UK:"en-GB" };
  const locale = localeMap[country_code.toUpperCase()] || "en-GB";