Claude Desktop Commander MCP

Instructions

Implementation Reference

• src/tools/filesystem.ts:90-93 (handler)

  The main handler function that validates the directory path and creates the directory using Node.js fs.mkdir with recursive option to handle nested paths.

  export async function createDirectory(dirPath: string): Promise<void> {
      const validPath = await validatePath(dirPath);
      await fs.mkdir(validPath, { recursive: true });
  }

• src/server.ts:287-292 (handler)

  The dispatch handler in the main tool request handler that parses input arguments using the schema and calls the specific createDirectory function.

  case "create_directory": {
    const parsed = CreateDirectoryArgsSchema.parse(args);
    await createDirectory(parsed.path);
    return {
      content: [{ type: "text", text: `Successfully created directory ${parsed.path}` }],
    };

• src/tools/schemas.ts:45-47 (schema)

  Zod schema defining the input arguments for the create_directory tool: a required 'path' string.

  export const CreateDirectoryArgsSchema = z.object({
    path: z.string(),
  });

• src/server.ts:149-155 (registration)

  Registers the create_directory tool in the MCP server tools list, providing name, description, and JSON schema derived from Zod schema.

  {
    name: "create_directory",
    description:
      "Create a new directory or ensure a directory exists. Can create multiple " +
      "nested directories in one operation. Only works within allowed directories.",
    inputSchema: zodToJsonSchema(CreateDirectoryArgsSchema),
  },