diff --git a/claude-code-channel/dist/bin.bundle.mjs b/claude-code-channel/dist/bin.bundle.mjs
index d2a3957..aacade9 100755
--- a/claude-code-channel/dist/bin.bundle.mjs
+++ b/claude-code-channel/dist/bin.bundle.mjs
@@ -18261,16 +18261,7 @@ var Server = class extends Protocol {
     if (!methodSchema) {
       throw new Error("Schema is missing a method literal");
     }
-    let methodValue;
-    if (isZ4Schema(methodSchema)) {
-      const v4Schema = methodSchema;
-      const v4Def = v4Schema._zod?.def;
-      methodValue = v4Def?.value ?? v4Schema.value;
-    } else {
-      const v3Schema = methodSchema;
-      const legacyDef = v3Schema._def;
-      methodValue = legacyDef?.value ?? v3Schema.value;
-    }
+    const methodValue = getLiteralValue(methodSchema);
     if (typeof methodValue !== "string") {
       throw new Error("Schema method literal must be a string");
     }
@@ -18579,8 +18570,17 @@ var Server = class extends Protocol {
 import process2 from "node:process";
 
 // node_modules/@modelcontextprotocol/sdk/dist/esm/shared/stdio.js
+var STDIO_DEFAULT_MAX_BUFFER_SIZE = 10 * 1024 * 1024;
 var ReadBuffer = class {
+  constructor(options) {
+    this._maxBufferSize = options?.maxBufferSize ?? STDIO_DEFAULT_MAX_BUFFER_SIZE;
+  }
   append(chunk) {
+    const newSize = (this._buffer?.length ?? 0) + chunk.length;
+    if (newSize > this._maxBufferSize) {
+      this.clear();
+      throw new Error(`ReadBuffer exceeded maximum size of ${this._maxBufferSize} bytes`);
+    }
     this._buffer = this._buffer ? Buffer.concat([this._buffer, chunk]) : chunk;
   }
   readMessage() {
@@ -18608,18 +18608,24 @@ function serializeMessage(message) {
 
 // node_modules/@modelcontextprotocol/sdk/dist/esm/server/stdio.js
 var StdioServerTransport = class {
-  constructor(_stdin = process2.stdin, _stdout = process2.stdout) {
+  constructor(_stdin = process2.stdin, _stdout = process2.stdout, options) {
     this._stdin = _stdin;
     this._stdout = _stdout;
-    this._readBuffer = new ReadBuffer();
     this._started = false;
     this._ondata = (chunk) => {
-      this._readBuffer.append(chunk);
-      this.processReadBuffer();
+      try {
+        this._readBuffer.append(chunk);
+        this.processReadBuffer();
+      } catch (error2) {
+        this.onerror?.(error2);
+        this.close().catch(() => {
+        });
+      }
     };
     this._onerror = (error2) => {
       this.onerror?.(error2);
     };
+    this._readBuffer = new ReadBuffer({ maxBufferSize: options?.maxBufferSize });
   }
   /**
    * Starts listening for messages on stdin.
diff --git a/claude-code-channel/package-lock.json b/claude-code-channel/package-lock.json
index 8753bcb..1e9ac22 100644
--- a/claude-code-channel/package-lock.json
+++ b/claude-code-channel/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.1.0-alpha.2",
       "license": "Apache-2.0",
       "dependencies": {
-        "@modelcontextprotocol/sdk": "^1.29.0",
+        "@modelcontextprotocol/sdk": "^1.31.0",
         "@world2agent/sdk": "^0.1.0-alpha.0"
       },
       "bin": {
@@ -479,12 +479,12 @@
       }
     },
     "node_modules/@modelcontextprotocol/sdk": {
-      "version": "1.29.0",
-      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.29.0.tgz",
-      "integrity": "sha512-zo37mZA9hJWpULgkRpowewez1y6ML5GsXJPY8FI0tBBCd77HEvza4jDqRKOXgHNn867PVGCyTdzqpz0izu5ZjQ==",
+      "version": "1.31.0",
+      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.31.0.tgz",
+      "integrity": "sha512-UvTMgnNlnIBO/22ob2RcVGDlcvOslQs8T59+FTGdA0L27a39fdGF/EDETNtDVK4DZGpwomlsYpRdA8UXcVL/pw==",
       "license": "MIT",
       "dependencies": {
-        "@hono/node-server": "^1.19.9",
+        "@hono/node-server": "^1.19.9 || ^2.0.5",
         "ajv": "^8.17.1",
         "ajv-formats": "^3.0.1",
         "content-type": "^1.0.5",
diff --git a/claude-code-channel/package.json b/claude-code-channel/package.json
index f50c624..af7c6ef 100644
--- a/claude-code-channel/package.json
+++ b/claude-code-channel/package.json
@@ -37,7 +37,7 @@
     "prepublishOnly": "pnpm run clean && pnpm run build"
   },
   "dependencies": {
-    "@modelcontextprotocol/sdk": "^1.29.0",
+    "@modelcontextprotocol/sdk": "^1.31.0",
     "@world2agent/sdk": "^0.1.0-alpha.0"
   },
   "devDependencies": {