Code-MCP

Instructions

Implementation Reference

• src/tools/linting.ts:163-207 (handler)

  The formatCodeHandler function implements the core logic of the 'format_code' tool. It performs basic code formatting (tab to spaces, remove trailing whitespace) and generates a markdown report with formatting analysis, suggestions, and style guide references based on the input language.

  export function formatCodeHandler(args: any) {
      const { code, language, indent } = args;
      const defaultIndent = language === "python" ? 4 : 2;
      const indentSize = indent || defaultIndent;
      const indentStr = " ".repeat(indentSize);
  
      let formatted = code;
      const suggestions: string[] = [];
  
      // Basic formatting
      formatted = formatted.replace(/\t/g, indentStr);
      formatted = formatted.replace(/[ \t]+$/gm, ""); // Remove trailing whitespace
  
      // Language-specific suggestions
      if (language === "javascript" || language === "typescript") {
          if (!formatted.endsWith("\n")) {
              suggestions.push("Add newline at end of file");
          }
          if (formatted.includes("{ }")) {
              suggestions.push("Empty blocks should be on separate lines");
          }
      }
  
      if (language === "python") {
          if (formatted.includes("  #")) {
              suggestions.push("Add two spaces before inline comments");
          }
      }
  
      const result = `# Format Analysis: ${language}
  
  ## Formatting Applied
  - Converted tabs to ${indentSize} spaces
  - Removed trailing whitespace
  - Normalized line endings
  
  ## Additional Suggestions
  ${suggestions.length > 0 ? suggestions.map(s => `- ${s}`).join("\n") : "✅ Code follows formatting guidelines"}
  
  ## Style Guide Reference
  - ${language === "python" ? "PEP 8" : language === "javascript" || language === "typescript" ? "Prettier/ESLint" : "Standard conventions"}
  `;
  
      return { content: [{ type: "text", text: result }] };
  }

• src/tools/linting.ts:153-161 (schema)

  Zod schema definition for the 'format_code' tool, specifying input parameters: code (string), language (string), and optional indent (number).

  export const formatCodeSchema = {
      name: "format_code",
      description: "Provides formatted version of code following language-specific style guides.",
      inputSchema: z.object({
          code: z.string().describe("The code to format"),
          language: z.string().describe("Programming language"),
          indent: z.number().optional().describe("Indentation size (default: 2 for JS, 4 for Python)")
      })
  };

• src/index.ts:105-105 (registration)

  Registration of the 'format_code' tool in the main toolRegistry Map used by the stdio MCP server.

  ["format_code", { schema: formatCodeSchema, handler: formatCodeHandler }],

• src/server.ts:105-105 (registration)

  Registration of the 'format_code' tool in the toolRegistry Map used by the HTTP MCP server.

  ["format_code", { schema: formatCodeSchema, handler: formatCodeHandler }],