endiagram

Instructions

Implementation Reference

• src/index.ts:90-96 (handler)

  The handler function for the "render" tool which calls the external EN API.

  async ({ source, theme, quality }) => {
    const result = await callApi("render", { source, theme, quality });
    return {
      content: [{ type: "text" as const, text: result.text }],
      isError: result.isError,
    };
  }

• src/index.ts:79-89 (schema)

  Input schema for the "render" tool using zod validation.

  {
    source: z.string().describe("EN source code describing the system"),
    theme: z
      .enum(["dark", "light"])
      .optional()
      .describe("Color theme for the rendered image"),
    quality: z
      .enum(["small", "mid", "max"])
      .optional()
      .describe("Output quality / resolution"),
  },

• src/index.ts:76-97 (registration)

  Tool registration for "render" using the McpServer instance.

  server.tool(
    "render",
    "Render an EN dependency graph as a publication-quality SVG image.",
    {
      source: z.string().describe("EN source code describing the system"),
      theme: z
        .enum(["dark", "light"])
        .optional()
        .describe("Color theme for the rendered image"),
      quality: z
        .enum(["small", "mid", "max"])
        .optional()
        .describe("Output quality / resolution"),
    },
    async ({ source, theme, quality }) => {
      const result = await callApi("render", { source, theme, quality });
      return {
        content: [{ type: "text" as const, text: result.text }],
        isError: result.isError,
      };
    }
  );