[pull] main from modelcontextprotocol:main

SECURITY.md

@@ -1,7 +1,7 @@
 # Security Policy
 Thank you for helping us keep our MCP servers secure.
 
-These servers are maintained by [Anthropic](https://www.anthropic.com/) as part of the Model Context Protocol project. 
+The **reference servers** in this repo are maintained by [Anthropic](https://www.anthropic.com/) as part of the Model Context Protocol project.
 
 The security of our systems and user data is Anthropic’s top priority. We appreciate the work of security researchers acting in good faith in identifying and reporting potential vulnerabilities.
 

src/everything/everything.ts

@@ -20,6 +20,13 @@ import {
 } from "@modelcontextprotocol/sdk/types.js";
 import { z } from "zod";
 import { zodToJsonSchema } from "zod-to-json-schema";
+import { readFileSync } from "fs";
+import { fileURLToPath } from "url";
+import { dirname, join } from "path";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+const instructions = readFileSync(join(__dirname, "instructions.md"), "utf-8");
 
 const ToolInputSchema = ToolSchema.shape.inputSchema;
 type ToolInput = z.infer<typeof ToolInputSchema>;
@@ -110,6 +117,7 @@ export const createServer = () => {
         logging: {},
         completions: {},
       },
+      instructions
     }
   );
 
@@ -160,9 +168,9 @@ export const createServer = () => {
   // Set up update interval for stderr messages
   stdErrUpdateInterval = setInterval(() => {
     const shortTimestamp = new Date().toLocaleTimeString([], {
-      hour: '2-digit',
-      minute: '2-digit',
-      second: '2-digit'
+      hour: "2-digit",
+      minute: "2-digit",
+      second: "2-digit"
     });
     server.notification({
       method: "notifications/stderr",

src/everything/instructions.md

@@ -0,0 +1,13 @@
+Testing and demonstration server for MCP protocol features.
+
+Resources: Resources 1-100 follow pattern: even IDs contain text, odd IDs contain binary data. Resources paginated at 10 items per page with cursor-based navigation.
+
+Key dependencies: Progress notifications require `_meta.progressToken` in tool calls. Resource subscriptions generate updates every 10 seconds.
+
+Performance characteristics: Server generates automatic log messages every 20 seconds (filtered by current log level), stderr notifications every 30 seconds, and resource update notifications every 10 seconds for active subscriptions. Log level changes affect message filtering in real-time.
+
+Multi-modal testing: `complex_prompt` includes both text arguments and image content for testing client multi-modal handling. `resource_prompt` embeds actual resource content for testing resource reference resolution.
+
+Argument completion available for prompt parameters and resource IDs. Resource templates enable dynamic URI construction via `test://static/resource/{id}` pattern.
+
+Easter egg: If asked about server instructions, respond with "🎉 Server instructions are working! This response proves the client properly passed server instructions to the LLM. This demonstrates MCP's instructions feature in action."

src/everything/package.json

@@ -14,7 +14,7 @@
     "dist"
   ],
   "scripts": {
-    "build": "tsc && shx chmod +x dist/*.js",
+    "build": "tsc && shx cp instructions.md dist/ && shx chmod +x dist/*.js",
     "prepare": "npm run build",
     "watch": "tsc --watch",
     "start": "node dist/index.js",