[WIP] Refactor everything server to be more modular and use recommended APIs.

* Updated architecture.md

* Refactor/renamed resources/dynamic.ts to resources/template.ts
  - refactor/renamed registerDynamicResources to registerResourceTemplates
    - this highlights the more salient fact that we are demonstrating registration of resource templates in this example.
  - exposed the ability to dynamically create the text resources from elsewhere (namely the resource-prompt example

* Added prompts/resource.ts
  - in registerEmbeddedResourcePrompt()
    - register a prompt that takes a resourceId and returns the prompt with the corresponding dynamically created resource embedded

src/everything/docs/architecture.md

@@ -30,10 +30,11 @@ src/everything
 │   ├── index.ts
 │   ├── simple.ts
 │   ├── complex.ts
-│   └── completions.ts
+│   ├── completions.ts
+│   └── resource.ts
 ├── resources
 │   ├── index.ts
-│   ├── dynamic.ts
+│   ├── template.ts
 │   └── static.ts
 ├── docs
 │   ├── server-instructions.md
@@ -87,16 +88,19 @@ At `src/everything`:
     - Registers `complex-prompt`: a prompt with two arguments (`city` required, `state` optional) used to compose a message.
   - completions.ts
     - Registers `completable-prompt`: a prompt whose arguments support server-driven completions using the SDK’s `completable(...)` helper (e.g., completing `department` and context-aware `name`).
+  - resource.ts
+    - Exposes `registerEmbeddedResourcePrompt(server)` which registers `resource-prompt` — a prompt that accepts `resourceId` and embeds a dynamically generated text resource within the returned messages. Internally reuses helpers from `resources/template.ts`.
 
 - resources/
 
   - index.ts
-    - `registerResources(server)` orchestrator; delegates to static and dynamic resources.
-  - dynamic.ts
+    - `registerResources(server)` orchestrator; delegates to template‑based dynamic resources and static resources by calling `registerResourceTemplates(server)` and `registerStaticResources(server)`.
+  - template.ts
     - Registers two dynamic, template‑driven resources using `ResourceTemplate`:
       - Text: `demo://resource/dynamic/text/{index}` (MIME: `text/plain`)
       - Blob: `demo://resource/dynamic/blob/{index}` (MIME: `application/octet-stream`, Base64 payload)
-    - The `{index}` path variable must be a finite integer. Content is generated on demand with a GMT timestamp.
+    - The `{index}` path variable must be a finite integer. Content is generated on demand with a timestamp.
+    - Exposes helpers `textResource(uri, index)` and `textResourceUri(index)` so other modules can construct and embed text resources directly (e.g., from prompts).
   - static.ts
     - Registers static resources for each file in the `docs/` folder.
     - URIs follow the pattern: `demo://static/docs/<filename>`.
@@ -157,6 +161,7 @@ At `src/everything`:
   - `simple-prompt` (prompts/simple.ts): No-argument prompt that returns a static user message.
   - `complex-prompt` (prompts/complex.ts): Two-argument prompt with `city` (required) and `state` (optional) used to compose a question.
   - `completable-prompt` (prompts/completions.ts): Demonstrates argument auto-completions with the SDK’s `completable` helper; `department` completions drive context-aware `name` suggestions.
+  - `resource-prompt` (prompts/resource.ts): Accepts `resourceId` (string convertible to integer) and returns messages that include an embedded dynamic text resource generated via `resources/template.ts`.
 
 - Resources
   - Dynamic Text: `demo://resource/dynamic/text/{index}` (content generated on the fly)

src/everything/prompts/index.ts

@@ -2,6 +2,7 @@ import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
 import { registerSimplePrompt } from "./simple.js";
 import { registerComplexPrompt } from "./complex.js";
 import { registerPromptWithCompletions } from "./completions.js";
+import { registerEmbeddedResourcePrompt } from "./resource.js"
 
 /**
  * Register the prompts with the MCP server.
@@ -11,4 +12,5 @@ export const registerPrompts = (server: McpServer) => {
   registerSimplePrompt(server);
   registerComplexPrompt(server);
   registerPromptWithCompletions(server);
+  registerEmbeddedResourcePrompt(server);
 };

src/everything/prompts/resource.ts

@@ -0,0 +1,51 @@
+import { z } from "zod";
+import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
+import {textResource, textResourceUri} from "../resources/template.js";
+
+export const registerEmbeddedResourcePrompt = (server: McpServer) => {
+  // NOTE: Currently, prompt arguments can only be strings since type is not field of PromptArgument
+  // Consequently, we must define it as a string and convert the argument to number before using it
+  // https://modelcontextprotocol.io/specification/2025-11-25/schema#promptargument
+  const promptArgsSchema = {
+    resourceId: z.string().describe("ID of the text resource to fetch"),
+  };
+
+  server.registerPrompt(
+    "resource-prompt",
+    {
+      title: "Resource Prompt",
+      description: "A prompt that includes an embedded resource reference",
+      argsSchema: promptArgsSchema,
+    },
+    (args) => {
+      const resourceId = Number(args?.resourceId); // Inspector sends strings only
+      if (!Number.isFinite(resourceId) || !Number.isInteger(resourceId)) {
+        throw new Error(
+          `Invalid resourceId: ${args?.resourceId}. Must be a finite integer.`
+        );
+      }
+
+      const uri = textResourceUri(resourceId);
+      const resource = textResource(uri, resourceId);
+
+      return {
+        messages: [
+          {
+            role: "user",
+            content: {
+              type: "text",
+              text: `This prompt includes the text resource with id: ${resourceId}. Please analyze the following resource:`,
+            },
+          },
+          {
+            role: "user",
+            content: {
+              type: "resource",
+              resource: resource,
+            },
+          },
+        ],
+      };
+    }
+  );
+};

src/everything/resources/index.ts

@@ -1,5 +1,5 @@
 import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
-import { registerDynamicResources } from "./dynamic.js";
+import { registerResourceTemplates } from "./template.js";
 import { registerStaticResources } from "./static.js";
 
 /**
@@ -7,6 +7,6 @@ import { registerStaticResources } from "./static.js";
  * @param server
  */
 export const registerResources = (server: McpServer) => {
-  registerDynamicResources(server);
+  registerResourceTemplates(server);
   registerStaticResources(server);
 };

src/everything/resources/template.ts

@@ -0,0 +1,117 @@
+import {
+  McpServer,
+  ResourceTemplate,
+} from "@modelcontextprotocol/sdk/server/mcp.js";
+
+const uriBase: string = "demo://resource/dynamic";
+const textUriBase: string = `${uriBase}/text`;
+const blobUriBase: string = `${uriBase}/blob`;
+const textUriTemplate: string = `${textUriBase}/{index}`;
+const blobUriTemplate: string = `${blobUriBase}/{index}`;
+
+/**
+ * Create a dynamic text resource
+ * @param uri
+ * @param index
+ */
+export const textResource = (uri: URL, index: number) => {
+  const timestamp = new Date().toLocaleTimeString();
+  return {
+    uri: uri.toString(),
+    mimeType: "text/plain",
+    text: `Resource ${index}: This is a plaintext resource created at ${timestamp}`,
+  };
+};
+
+/**
+ * Create a dynamic blob resource
+ * @param uri
+ * @param index
+ */
+export const blobResource = (uri: URL, index: number) => {
+  const timestamp = new Date().toLocaleTimeString();
+  const resourceText = Buffer.from(
+    `Resource ${index}: This is a base64 blob created at ${timestamp}`
+  ).toString("base64");
+  return {
+    uri: uri.toString(),
+    mimeType: "text/plain",
+    text: resourceText,
+  };
+};
+
+/**
+ * Create a dynamic text resource URI
+ * @param index
+ */
+export const textResourceUri = (index: number) =>
+  new URL(`${textUriBase}/${index}`);
+
+/**
+ * Register resource templates with the MCP server.
+ *
+ * - Text and blob resources, dynamically generated from the URI {index} variable
+ * - Any finite integer is acceptable for the index variable
+ * - List resources method will not return these resources
+ * - These are only accessible via template URIs
+ * - Both blob and text resources:
+ *   - have content that is dynamically generated, including a timestamp
+ *   - have different template URIs
+ *     - Blob: "demo://resource/dynamic/blob/{index}"
+ *     - Text: "demo://resource/dynamic/text/{index}"
+ *
+ * @param server
+ */
+export const registerResourceTemplates = (server: McpServer) => {
+  const parseIndex = (uri: URL, variables: Record<string, unknown>) => {
+    const uriError = `Unknown resource: ${uri.toString()}`;
+    if (
+      uri.toString().startsWith(textUriBase) &&
+      uri.toString().startsWith(blobUriBase)
+    ) {
+      throw new Error(uriError);
+    } else {
+      const idxStr = String((variables as any).index ?? "");
+      const idx = Number(idxStr);
+      if (Number.isFinite(idx) && Number.isInteger(idx)) {
+        return idx;
+      } else {
+        throw new Error(uriError);
+      }
+    }
+  };
+
+  // Text resource template registration
+  server.registerResource(
+    "Dynamic Text Resource",
+    new ResourceTemplate(textUriTemplate, { list: undefined }),
+    {
+      mimeType: "text/plain",
+      description:
+        "Plaintext dynamic resource fabricated from the {index} variable, which must be an integer.",
+    },
+    async (uri, variables) => {
+      const index = parseIndex(uri, variables);
+      return {
+        contents: [textResource(uri, index)],
+      };
+    }
+  );
+
+  // Blob resource template registration
+  server.registerResource(
+    "Dynamic Blob Resource",
+    new ResourceTemplate(blobUriTemplate, { list: undefined }),
+    {
+      mimeType: "application/octet-stream",
+      description:
+        "Binary (base64) dynamic resource fabricated from the {index} variable, which must be an integer.",
+    },
+    async (uri, variables) => {
+      const index = parseIndex(uri, variables);
+      return {
+        contents: [blobResource(uri, index)],
+      };
+    }
+  );
+};