Spaces:

evalstate
/

presentations

Running

App Files Files Community

evalstate HF Staff commited on Feb 4

Commit

ce0e171

verified ·

1 Parent(s): f2fa63a

Add MCP Connect 2026 presentation with latest updates

Browse files

Files changed (29) hide show

.gitattributes +6 -0
2026/mcp-connect/animations/chat-api-view.html +196 -0
2026/mcp-connect/animations/chat-demo.html +123 -0
2026/mcp-connect/animations/http-multinode-cookie.html +387 -0
2026/mcp-connect/animations/http-multinode-shared-storage.html +444 -0
2026/mcp-connect/animations/http-multinode-stateless.html +392 -0
2026/mcp-connect/animations/http-multinode.html +368 -0
2026/mcp-connect/animations/mcp-mrtr-flow.html +221 -0
2026/mcp-connect/animations/mcp-mrtr-request.html +233 -0
2026/mcp-connect/animations/mcp-stateful-request.html +318 -0
2026/mcp-connect/animations/shared/animation-config.js +32 -0
2026/mcp-connect/animations/shared/canvas-scale.js +44 -0
2026/mcp-connect/animations/shared/diagram-helpers.js +152 -0
2026/mcp-connect/animations/shared/http-diagram.css +505 -0
2026/mcp-connect/animations/shared/sequence-helpers.js +83 -0
2026/mcp-connect/animations/stdio-simple.html +722 -0
2026/mcp-connect/images/2026-02-03-mcp-server-stats.png +3 -0
2026/mcp-connect/images/2026-02-03-mcpremote1.png +3 -0
2026/mcp-connect/images/2026-02-03-mcpremote2.png +3 -0
2026/mcp-connect/images/2026-02-04-client-dataset.png +3 -0
2026/mcp-connect/images/2026-02-04-efficient.png +0 -0
2026/mcp-connect/images/github-mark.svg +1 -0
2026/mcp-connect/images/hf_logo.svg +8 -0
2026/mcp-connect/images/huggingface-mark-logo.svg +15 -0
2026/mcp-connect/images/intro-spaces.webm +3 -0
2026/mcp-connect/images/mcp-icon.svg +12 -0
2026/mcp-connect/images/xcom-logo-black.png +3 -0
2026/mcp-connect/presentation.html +0 -0
index.html +16 -0

.gitattributes CHANGED Viewed

@@ -53,3 +53,9 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 2025/secure-se-sep/images/local_context.png filter=lfs diff=lfs merge=lfs -text
 2025/secure-se-sep/images/model_parameters.png filter=lfs diff=lfs merge=lfs -text
 2025/secure-se-sep/images/xcom-logo-black.png filter=lfs diff=lfs merge=lfs -text

 2025/secure-se-sep/images/local_context.png filter=lfs diff=lfs merge=lfs -text
 2025/secure-se-sep/images/model_parameters.png filter=lfs diff=lfs merge=lfs -text
 2025/secure-se-sep/images/xcom-logo-black.png filter=lfs diff=lfs merge=lfs -text
+2026/mcp-connect/images/2026-02-03-mcp-server-stats.png filter=lfs diff=lfs merge=lfs -text
+2026/mcp-connect/images/2026-02-03-mcpremote1.png filter=lfs diff=lfs merge=lfs -text
+2026/mcp-connect/images/2026-02-03-mcpremote2.png filter=lfs diff=lfs merge=lfs -text
+2026/mcp-connect/images/2026-02-04-client-dataset.png filter=lfs diff=lfs merge=lfs -text
+2026/mcp-connect/images/intro-spaces.webm filter=lfs diff=lfs merge=lfs -text
+2026/mcp-connect/images/xcom-logo-black.png filter=lfs diff=lfs merge=lfs -text

2026/mcp-connect/animations/chat-api-view.html ADDED Viewed

	@@ -0,0 +1,196 @@

+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="UTF-8">
+  <style>
+    * { margin: 0; padding: 0; box-sizing: border-box; }
+    html, body {
+      height: 100%;
+      overflow: hidden;
+    }
+    body {
+      background: transparent;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+      width: 100vw;
+      height: 100vh;
+      font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
+    }
+    .api-window {
+      background: linear-gradient(135deg, #1e1e1e 0%, #252526 100%);
+      border-radius: 16px;
+      padding: 16px;
+      width: 480px;
+      height: 460px;
+      box-shadow: 0 10px 40px rgba(0,0,0,0.3);
+      overflow: hidden;
+      display: flex;
+      flex-direction: column;
+    }
+    .api-header {
+      color: #888;
+      font-size: 11px;
+      margin-bottom: 8px;
+      padding-bottom: 6px;
+      border-bottom: 1px solid #333;
+    }
+    .api-content {
+      font-size: 12px;
+      line-height: 1.5;
+      color: #d4d4d4;
+      flex: 1;
+      overflow: auto;
+      scrollbar-width: none;
+    }
+    .api-content::-webkit-scrollbar {
+      display: none;
+    }
+    .json-brace { color: #d4d4d4; }
+    .json-key { color: #9cdcfe; }
+    .json-string { color: #ce9178; }
+    .json-bracket { color: #d4d4d4; }
+    .json-punct { color: #d4d4d4; }
+    .message-block {
+      opacity: 0;
+      transform: translateX(-10px);
+      margin-left: 20px;
+      padding: 4px 0;
+    }
+    .message-block.show {
+      animation: slideInLeft 0.4s ease forwards;
+    }
+    .message-block.fade-out {
+      animation: fadeOut 0.8s ease forwards;
+    }
+    .role-user { border-left: 3px solid #0b93f6; padding-left: 10px; }
+    .role-assistant { border-left: 3px solid #34c759; padding-left: 10px; }
+    .static-content {
+      opacity: 0;
+    }
+    .static-content.show {
+      animation: fadeIn 0.3s ease forwards;
+    }
+    .static-content.fade-out {
+      animation: fadeOut 0.8s ease forwards;
+    }
+    @keyframes slideInLeft {
+      from { opacity: 0; transform: translateX(-10px); }
+      to { opacity: 1; transform: translateX(0); }
+    }
+    @keyframes fadeIn {
+      from { opacity: 0; }
+      to { opacity: 1; }
+    }
+    @keyframes fadeOut {
+      from { opacity: 1; }
+      to { opacity: 0; }
+    }
+    .content-truncated {
+      color: #666;
+      font-style: italic;
+    }
+  </style>
+</head>
+<body>
+  <div class="api-window canvas-root">
+    <div class="api-header">POST /v1/chat/completions</div>
+    <div class="api-content">
+      <div class="static-content" data-delay="0" id="openBrace">
+        <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;<span class="json-key">"messages"</span><span class="json-punct">:</span> <span class="json-bracket">[</span>
+      </div>
+      <div class="message-block role-user" data-delay="0">
+        <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;<span class="json-key">"role"</span><span class="json-punct">:</span> <span class="json-string">"user"</span><span class="json-punct">,</span><br>
+        &nbsp;&nbsp;<span class="json-key">"content"</span><span class="json-punct">:</span> <span class="json-string">"Can you help me find information about MCP servers?"</span><br>
+        <span class="json-brace">}</span>
+      </div>
+      <div class="message-block role-assistant" data-delay="2000">
+        <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;<span class="json-key">"role"</span><span class="json-punct">:</span> <span class="json-string">"assistant"</span><span class="json-punct">,</span><br>
+        &nbsp;&nbsp;<span class="json-key">"content"</span><span class="json-punct">:</span> <span class="json-string">"Of course! I can search for MCP server documentation..."</span><br>
+        <span class="json-brace">}</span>
+      </div>
+      <div class="message-block role-user" data-delay="4000">
+        <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;<span class="json-key">"role"</span><span class="json-punct">:</span> <span class="json-string">"user"</span><span class="json-punct">,</span><br>
+        &nbsp;&nbsp;<span class="json-key">"content"</span><span class="json-punct">:</span> <span class="json-string">"Great, what transport options are available?"</span><br>
+        <span class="json-brace">}</span>
+      </div>
+      <div class="message-block role-assistant" data-delay="6000">
+        <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;<span class="json-key">"role"</span><span class="json-punct">:</span> <span class="json-string">"assistant"</span><span class="json-punct">,</span><br>
+        &nbsp;&nbsp;<span class="json-key">"content"</span><span class="json-punct">:</span> <span class="json-string">"MCP supports STDIO, Streamable HTTP, and..."</span><br>
+        <span class="json-brace">}</span>
+      </div>
+      <div class="message-block role-user" data-delay="8000">
+        <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;<span class="json-key">"role"</span><span class="json-punct">:</span> <span class="json-string">"user"</span><span class="json-punct">,</span><br>
+        &nbsp;&nbsp;<span class="json-key">"content"</span><span class="json-punct">:</span> <span class="json-string">"Can servers make requests back to clients?"</span><br>
+        <span class="json-brace">}</span>
+      </div>
+      <div class="message-block role-assistant" data-delay="10000">
+        <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;<span class="json-key">"role"</span><span class="json-punct">:</span> <span class="json-string">"assistant"</span><span class="json-punct">,</span><br>
+        &nbsp;&nbsp;<span class="json-key">"content"</span><span class="json-punct">:</span> <span class="json-string">"Yes! Servers can request Sampling and Elicitation..."</span><br>
+        <span class="json-brace">}</span>
+      </div>
+      <div class="static-content" data-delay="0" id="closeBrace">
+        &nbsp;&nbsp;<span class="json-bracket">]</span><br>
+        <span class="json-brace">}</span>
+      </div>
+    </div>
+  </div>
+  <script src="shared/sequence-helpers.js"></script>
+  <script src="shared/canvas-scale.js"></script>
+  <script>
+    const apiContent = document.querySelector('.api-content');
+    const timelineItems = Array.from(document.querySelectorAll('.message-block, .static-content'));
+    const delays = timelineItems.map((item) => parseInt(item.dataset.delay, 10) || 0);
+    const maxDelay = delays.length ? Math.max(...delays) : 0;
+    const cycleDuration = maxDelay + 4000 + 1000 + 2000;
+    apiContent.scrollTop = 0;
+    setInterval(() => {
+      apiContent.scrollTop = 0;
+    }, cycleDuration);
+    runSequenceAnimation({
+      selectors: ['.message-block', '.static-content'],
+      cyclePause: 2000,
+      fadeOutOffset: 4000,
+      initialDelay: 500,
+      onShow: (el) => {
+        if (el.classList.contains('message-block')) {
+          el.scrollIntoView({ block: 'nearest' });
+        }
+      },
+    });
+    scaleCanvas();
+  </script>
+</body>
+</html>

2026/mcp-connect/animations/chat-demo.html ADDED Viewed

	@@ -0,0 +1,123 @@

+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="UTF-8">
+  <style>
+    * { margin: 0; padding: 0; box-sizing: border-box; }
+    html, body {
+      height: 100%;
+      overflow: hidden;
+    }
+    body {
+      background: transparent;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+      width: 100vw;
+      height: 100vh;
+      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+    }
+    .chat-window {
+      background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
+      border-radius: 16px;
+      padding: 24px;
+      width: 480px;
+      height: 460px;
+      box-shadow: 0 10px 40px rgba(0,0,0,0.3);
+      overflow: hidden;
+    }
+    .chat-messages {
+      display: flex;
+      flex-direction: column;
+      gap: 14px;
+    }
+    .message {
+      display: flex;
+      opacity: 0;
+      transform: translateY(20px);
+    }
+    .message.show {
+      animation: slideIn 0.5s ease forwards;
+    }
+    .message.fade-out {
+      animation: fadeOut 0.8s ease forwards;
+    }
+    .user-message { justify-content: flex-end; }
+    .assistant-message { justify-content: flex-start; }
+    .message-bubble {
+      max-width: 85%;
+      padding: 12px 16px;
+      border-radius: 18px;
+      font-size: 14px;
+      line-height: 1.45;
+      box-shadow: 0 2px 8px rgba(0,0,0,0.15);
+    }
+    .user-message .message-bubble {
+      background: linear-gradient(135deg, #0b93f6 0%, #007AFF 100%);
+      color: white;
+      border-bottom-right-radius: 4px;
+    }
+    .assistant-message .message-bubble {
+      background: linear-gradient(135deg, #34c759 0%, #30d158 100%);
+      color: white;
+      border-bottom-left-radius: 4px;
+    }
+    @keyframes slideIn {
+      from { opacity: 0; transform: translateY(20px); }
+      to { opacity: 1; transform: translateY(0); }
+    }
+    @keyframes fadeOut {
+      from { opacity: 1; transform: translateY(0); }
+      to { opacity: 0; transform: translateY(-10px); }
+    }
+  </style>
+</head>
+<body>
+  <div class="chat-window canvas-root">
+    <div class="chat-messages" id="chatMessages">
+      <div class="message user-message" data-delay="0">
+        <div class="message-bubble">Can you help me find information about MCP servers?</div>
+      </div>
+      <div class="message assistant-message" data-delay="2000">
+        <div class="message-bubble">Of course! I can search for MCP server documentation. Let me use the search tool...</div>
+      </div>
+      <div class="message user-message" data-delay="4000">
+        <div class="message-bubble">Great, what transport options are available?</div>
+      </div>
+      <div class="message assistant-message" data-delay="6000">
+        <div class="message-bubble">MCP supports STDIO, Streamable HTTP, and the deprecated SSE transport. HTTP is recommended for remote servers.</div>
+      </div>
+      <div class="message user-message" data-delay="8000">
+        <div class="message-bubble">Can servers make requests back to clients?</div>
+      </div>
+      <div class="message assistant-message" data-delay="10000">
+        <div class="message-bubble">Yes! Servers can request Sampling and Elicitation from clients. This enables interactive workflows.</div>
+      </div>
+    </div>
+  </div>
+  <script src="shared/sequence-helpers.js"></script>
+  <script src="shared/canvas-scale.js"></script>
+  <script>
+    runSequenceAnimation({
+      selectors: ['.message'],
+      cyclePause: 2000,
+      fadeOutOffset: 4000,
+      initialDelay: 500,
+    });
+    scaleCanvas();
+  </script>
+</body>
+</html>

2026/mcp-connect/animations/http-multinode-cookie.html ADDED Viewed

	@@ -0,0 +1,387 @@

+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="UTF-8">
+  <link rel="stylesheet" href="shared/http-diagram.css">
+  <style>
+    /* Make MCP-Cookie box much larger and prominent */
+    .message-session.mcp-cookie {
+      padding: 12px 16px;
+      border-radius: 12px;
+      min-width: 200px;
+      background: #f3e5f5;
+      border: 3px solid #ab47bc;
+      box-shadow: 0 6px 20px rgba(156, 39, 176, 0.35);
+    }
+    .message-session.mcp-cookie .cookie-label {
+      font-size: 10px;
+      font-weight: 600;
+      text-transform: uppercase;
+      letter-spacing: 0.5px;
+      color: #7b1fa2;
+      margin-bottom: 6px;
+    }
+    .message-session.mcp-cookie .cookie-value {
+      font-family: 'SF Mono', Monaco, monospace;
+      font-size: 14px;
+      font-weight: 700;
+      background: white;
+      padding: 6px 14px;
+      border-radius: 8px;
+      border: 2px solid #ce93d8;
+      color: #7b1fa2;
+      display: inline-block;
+      box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+    }
+    .message-session.mcp-cookie .cookie-value.empty {
+      color: #9e9e9e;
+      border-color: #e0e0e0;
+      font-style: italic;
+    }
+    /* Set-Cookie variation - green themed (server issuing) */
+    .message-session.mcp-cookie.set-cookie {
+      background: #e8f5e9;
+      border-color: #66bb6a;
+      box-shadow: 0 6px 20px rgba(76, 175, 80, 0.35);
+    }
+    .message-session.mcp-cookie.set-cookie .cookie-label {
+      color: #2e7d32;
+    }
+    .message-session.mcp-cookie.set-cookie .cookie-value {
+      border-color: #a5d6a7;
+      color: #2e7d32;
+    }
+    /* Request with cookie - blue themed */
+    .message.request .message-session.mcp-cookie:not(.set-cookie) {
+      background: #e3f2fd;
+      border-color: #42a5f5;
+      box-shadow: 0 6px 20px rgba(33, 150, 243, 0.35);
+    }
+    .message.request .message-session.mcp-cookie:not(.set-cookie) .cookie-label {
+      color: #1565c0;
+    }
+    .message.request .message-session.mcp-cookie:not(.set-cookie) .cookie-value {
+      border-color: #90caf9;
+      color: #1565c0;
+    }
+  </style>
+</head>
+<body>
+  <div class="canvas-root">
+    <div class="diagram">
+    <!-- Client -->
+    <div class="entity client">
+      <div class="entity-box" id="client-box">
+        <span>MCP Client</span>
+        <span class="entity-status" id="client-status"></span>
+      </div>
+      <div class="state-badge" id="client-state">
+        <div class="badge-title">Cookie Jar</div>
+        <div class="empty-state">empty</div>
+        <div class="session-id" id="client-session"></div>
+        <div class="caps-row" id="client-caps"></div>
+      </div>
+    </div>
+    <!-- Load Balancer -->
+    <div class="entity lb">
+      <div class="entity-box">LB</div>
+    </div>
+    <!-- Connection lines -->
+    <div class="connection conn-client-lb"></div>
+    <div class="connection conn-lb-servers"></div>
+    <!-- Server Cluster -->
+    <div class="server-cluster">
+      <div class="cluster-label">Streamable HTTP (Cookies)</div>
+    </div>
+    <!-- Server Nodes with session badges to the right -->
+    <div class="entity server server-1">
+      <div class="entity-box" id="server-1-box">
+        <span>Node 1</span>
+        <span class="entity-status" id="server-1-status"></span>
+      </div>
+      <div class="state-badge" id="server-1-state">
+        <div class="badge-title">Known Cookie</div>
+        <div class="empty-state">none</div>
+        <div class="session-id" id="server-1-session"></div>
+        <div class="caps-row" id="server-1-caps"></div>
+      </div>
+    </div>
+    <div class="entity server server-2">
+      <div class="entity-box" id="server-2-box">
+        <span>Node 2</span>
+        <span class="entity-status" id="server-2-status"></span>
+      </div>
+      <div class="state-badge" id="server-2-state">
+        <div class="badge-title">Known Cookie</div>
+        <div class="empty-state">none</div>
+        <div class="session-id" id="server-2-session"></div>
+        <div class="caps-row" id="server-2-caps"></div>
+      </div>
+    </div>
+    <div class="entity server server-3">
+      <div class="entity-box" id="server-3-box">
+        <span>Node 3</span>
+        <span class="entity-status" id="server-3-status"></span>
+      </div>
+      <div class="state-badge" id="server-3-state">
+        <div class="badge-title">Known Cookie</div>
+        <div class="empty-state">none</div>
+        <div class="session-id" id="server-3-session"></div>
+        <div class="caps-row" id="server-3-caps"></div>
+      </div>
+    </div>
+    <!-- Message -->
+    <div class="message" id="message">
+      <div class="message-header">
+        <span class="message-type" id="message-type">initialize</span>
+        <span class="message-arrow" id="message-arrow">→</span>
+      </div>
+      <div class="message-detail" id="message-detail">CallToolRequest</div>
+      <div class="message-session" id="message-session">MCP-Cookie: (none)</div>
+    </div>
+  </div>
+    <div class="narration" id="narration">
+    <span class="step-num" id="step-num">○</span>
+    <span id="narration-text">Client uses MCP cookies for session semantics...</span>
+  </div>
+  </div>
+  <script src="shared/animation-config.js"></script>
+  <script src="shared/diagram-helpers.js"></script>
+  <script src="shared/canvas-scale.js"></script>
+  <script>
+    const message = document.getElementById('message');
+    const messageType = document.getElementById('message-type');
+    const messageArrow = document.getElementById('message-arrow');
+    const messageDetail = document.getElementById('message-detail');
+    const messageSession = document.getElementById('message-session');
+    const narration = document.getElementById('narration');
+    const narrationText = document.getElementById('narration-text');
+    const stepNum = document.getElementById('step-num');
+    const clientBox = document.getElementById('client-box');
+    const clientState = document.getElementById('client-state');
+    const clientSession = document.getElementById('client-session');
+    const clientCaps = document.getElementById('client-caps');
+    const server1Box = document.getElementById('server-1-box');
+    const server2Box = document.getElementById('server-2-box');
+    const server3Box = document.getElementById('server-3-box');
+    const server1State = document.getElementById('server-1-state');
+    const server2State = document.getElementById('server-2-state');
+    const server3State = document.getElementById('server-3-state');
+    const server1Session = document.getElementById('server-1-session');
+    const server1Caps = document.getElementById('server-1-caps');
+    const server2Session = document.getElementById('server-2-session');
+    const server2Caps = document.getElementById('server-2-caps');
+    const server3Session = document.getElementById('server-3-session');
+    const server3Caps = document.getElementById('server-3-caps');
+    const messageElements = {
+      container: message,
+      header: message.querySelector('.message-header'),
+      type: messageType,
+      arrow: messageArrow,
+      detail: messageDetail,
+      session: messageSession,
+    };
+    // Positions (x centers)
+    const pos = {
+      client: 65,
+      lb: 240,
+      server1: 470,
+      server2: 470,
+      server3: 470
+    };
+    const yClient = 115;
+    const yServer1 = 38;
+    const yServer2 = 143;
+    const yServer3 = 248;
+    function setMessagePos(x, y) {
+      setMessagePosition(message, x, y);
+    }
+    function animateMessage(fromX, fromY, toX, toY, duration, callback) {
+      animateMessageBetween(message, fromX, fromY, toX, toY, duration, callback);
+    }
+    function animatePath(waypoints, totalDuration, callback) {
+      animatePathBetween(message, waypoints, totalDuration, callback);
+    }
+    function configMessage(type, arrow, method, detail, sessionText, sessionError, direction) {
+      configureMessage(messageElements, {
+        type,
+        arrow,
+        method,
+        detail,
+        sessionText,
+        sessionError,
+        direction,
+      });
+    }
+    function buildCookieMarkup(label, value, isEmpty) {
+      const valueClass = isEmpty ? 'cookie-value empty' : 'cookie-value';
+      return `<div class="cookie-label">${label}</div><div class="${valueClass}">${value}</div>`;
+    }
+    function resetAll() {
+      clientBox.className = 'entity-box';
+      server1Box.className = 'entity-box';
+      server2Box.className = 'entity-box';
+      server3Box.className = 'entity-box';
+      clientState.className = 'state-badge';
+      server1State.className = 'state-badge';
+      server2State.className = 'state-badge';
+      server3State.className = 'state-badge';
+      // Clear dynamic content
+      clientSession.textContent = '';
+      clientCaps.innerHTML = '';
+      server1Session.textContent = '';
+      server1Caps.innerHTML = '';
+      server2Session.textContent = '';
+      server2Caps.innerHTML = '';
+      server3Session.textContent = '';
+      server3Caps.innerHTML = '';
+      message.className = 'message';
+    }
+    const steps = [
+      // Step 0: Initial state
+      {
+        setup: () => {
+          resetAll();
+          stepNum.textContent = '○';
+          narrationText.textContent = 'Client and server exchange cookies at the MCP layer';
+          narration.className = 'narration';
+        },
+        animate: (done) => setTimeout(done, ANIMATION.INITIAL_PAUSE),
+        after: () => {}
+      },
+      // Step 1: tools/call → LB → Node 1 (no cookie yet)
+      {
+        setup: () => {
+          configMessage('request', '→', 'tools/call', 'CallToolRequest', buildCookieMarkup('MCP-Cookie', '(none)', true), false, 'right');
+          messageSession.classList.add('mcp-cookie');
+          setMessagePos(pos.client, yClient);
+          stepNum.textContent = '1';
+          narrationText.textContent = 'Client sends request without cookie (MCP JSON-RPC layer)';
+          narration.className = 'narration request-state';
+          clientBox.classList.add('alive', 'active');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.client, y: yClient}, {x: pos.lb, y: yClient}, {x: pos.server1, y: yServer1}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          clientBox.classList.remove('active');
+          server1Box.classList.add('alive', 'active');
+        }
+      },
+      // Step 2: tools/call result ← Node 1 issues cookie
+      {
+        setup: () => {
+          configMessage('response', '←', 'tools/call', 'CallToolResult', buildCookieMarkup('Set-MCP-Cookie', 'cookie_4f2', false), false, 'left');
+          messageSession.classList.add('mcp-cookie', 'set-cookie');
+          setMessagePos(pos.server1, yServer1);
+          stepNum.textContent = '2';
+          narrationText.textContent = 'Server issues MCP cookie (can be copied to HTTP headers)';
+          narration.className = 'narration response-state';
+          server1Session.textContent = 'cookie_4f2';
+          server1State.classList.add('active');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.server1, y: yServer1}, {x: pos.lb, y: yClient}, {x: pos.client, y: yClient}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          server1Box.classList.remove('active');
+          clientSession.textContent = 'cookie_4f2';
+          clientState.classList.add('active');
+        }
+      },
+      // Step 3: tools/call → LB → Node 2 (cookie included)
+      {
+        setup: () => {
+          configMessage('request', '→', 'tools/call', 'CallToolRequest', buildCookieMarkup('MCP-Cookie', 'cookie_4f2', false), false, 'right');
+          messageSession.classList.add('mcp-cookie');
+          setMessagePos(pos.client, yClient);
+          stepNum.textContent = '3';
+          narrationText.textContent = 'Client returns cookie on the next request';
+          narration.className = 'narration request-state';
+          clientBox.classList.add('active');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.client, y: yClient}, {x: pos.lb, y: yClient}, {x: pos.server2, y: yServer2}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          clientBox.classList.remove('active');
+          server2Box.classList.add('alive', 'active');
+        }
+      },
+      // Step 4: tools/call result ← Node 2 recognizes cookie
+      {
+        setup: () => {
+          configMessage('response', '←', 'tools/call', 'CallToolResult', buildCookieMarkup('MCP-Cookie ✓', 'cookie_4f2', false), false, 'left');
+          messageSession.classList.add('mcp-cookie');
+          setMessagePos(pos.server2, yServer2);
+          stepNum.textContent = '4';
+          narrationText.textContent = 'Server uses cookie to maintain session semantics';
+          narration.className = 'narration response-state';
+          server2Session.textContent = 'cookie_4f2';
+          server2State.classList.add('active');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.server2, y: yServer2}, {x: pos.lb, y: yClient}, {x: pos.client, y: yClient}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          server2Box.classList.remove('active');
+        }
+      },
+      // Step 5: Pause before restart
+      {
+        setup: () => {
+          message.className = 'message';
+          stepNum.textContent = '✓';
+          narrationText.textContent = 'MCP cookies preserve client/server context across requests';
+          narration.className = 'narration success-state';
+        },
+        animate: (done) => setTimeout(done, ANIMATION.ERROR_PAUSE),
+        after: () => {}
+      }
+    ];
+    runStepSequence(steps);
+    scaleCanvas();
+  </script>
+</body>
+</html>

2026/mcp-connect/animations/http-multinode-shared-storage.html ADDED Viewed

	@@ -0,0 +1,444 @@

+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="UTF-8">
+  <link rel="stylesheet" href="shared/http-diagram.css">
+  <style>
+    /* Make RequestId box much larger and prominent */
+    .message-session.request-id {
+      padding: 12px 16px;
+      border-radius: 12px;
+      min-width: 180px;
+      background: #fff3e0;
+      border: 3px solid #ffa726;
+      box-shadow: 0 6px 20px rgba(255, 152, 0, 0.35);
+    }
+    .message-session.request-id .request-label {
+      font-size: 10px;
+      font-weight: 600;
+      text-transform: uppercase;
+      letter-spacing: 0.5px;
+      color: #e65100;
+      margin-bottom: 6px;
+    }
+    .message-session.request-id .request-value {
+      font-family: 'SF Mono', Monaco, monospace;
+      font-size: 14px;
+      font-weight: 700;
+      background: white;
+      padding: 6px 14px;
+      border-radius: 8px;
+      border: 2px solid #ffb74d;
+      color: #e65100;
+      display: inline-block;
+      box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+    }
+    /* Client response variation - blue themed */
+    .message.client-response .message-session.request-id {
+      background: #e3f2fd;
+      border-color: #42a5f5;
+      box-shadow: 0 6px 20px rgba(33, 150, 243, 0.35);
+    }
+    .message.client-response .message-session.request-id .request-label {
+      color: #1565c0;
+    }
+    .message.client-response .message-session.request-id .request-value {
+      border-color: #90caf9;
+      color: #1565c0;
+    }
+    /* Error variation - red themed */
+    .message.error-response .message-session.request-id {
+      background: #ffebee;
+      border-color: #ef5350;
+      box-shadow: 0 6px 20px rgba(244, 67, 54, 0.35);
+    }
+    .message.error-response .message-session.request-id .request-label {
+      color: #c62828;
+    }
+    .message.error-response .message-session.request-id .request-value {
+      border-color: #ef9a9a;
+      color: #c62828;
+    }
+  </style>
+</head>
+<body>
+  <div class="canvas-root">
+    <div class="diagram">
+    <!-- Client -->
+    <div class="entity client">
+      <div class="entity-box" id="client-box">
+        <span>MCP Client</span>
+        <span class="entity-status" id="client-status"></span>
+      </div>
+      <div class="state-badge" id="client-state">
+        <div class="badge-title">Connection State</div>
+        <div class="empty-state">Mcp-Session-Id: —</div>
+        <div class="session-id" id="client-session"></div>
+        <div class="caps-row" id="client-caps"></div>
+      </div>
+    </div>
+    <!-- Load Balancer -->
+    <div class="entity lb">
+      <div class="entity-box">LB</div>
+    </div>
+    <!-- Connection lines -->
+    <div class="connection conn-client-lb"></div>
+    <div class="connection conn-lb-servers"></div>
+    <!-- Server Cluster -->
+    <div class="server-cluster">
+      <div class="cluster-label">Streamable HTTP (Shared Init State)</div>
+    </div>
+    <!-- Server Nodes with session badges to the right -->
+    <div class="entity server server-1">
+      <div class="entity-box" id="server-1-box">
+        <span>Node 1</span>
+        <span class="entity-status" id="server-1-status"></span>
+      </div>
+      <div class="state-badge" id="server-1-state">
+        <div class="badge-title">Connection State</div>
+        <div class="empty-state">Mcp-Session-Id: —</div>
+        <div class="session-id" id="server-1-session"></div>
+        <div class="caps-row" id="server-1-caps"></div>
+      </div>
+    </div>
+    <div class="entity server server-2">
+      <div class="entity-box" id="server-2-box">
+        <span>Node 2</span>
+        <span class="entity-status" id="server-2-status"></span>
+      </div>
+      <div class="state-badge" id="server-2-state">
+        <div class="badge-title">Connection State</div>
+        <div class="empty-state">Mcp-Session-Id: —</div>
+        <div class="session-id" id="server-2-session"></div>
+        <div class="caps-row" id="server-2-caps"></div>
+      </div>
+    </div>
+    <div class="entity server server-3">
+      <div class="entity-box" id="server-3-box">
+        <span>Node 3</span>
+        <span class="entity-status" id="server-3-status"></span>
+      </div>
+      <div class="state-badge" id="server-3-state">
+        <div class="badge-title">Connection State</div>
+        <div class="empty-state">Mcp-Session-Id: —</div>
+        <div class="session-id" id="server-3-session"></div>
+        <div class="caps-row" id="server-3-caps"></div>
+      </div>
+    </div>
+    <!-- Message -->
+    <div class="message" id="message">
+      <div class="message-header">
+        <span class="message-type" id="message-type">initialize</span>
+        <span class="message-arrow" id="message-arrow">→</span>
+      </div>
+      <div class="message-detail" id="message-detail">InitializeRequest</div>
+      <div class="message-session" id="message-session">Mcp-Session-Id: sess_abc123</div>
+    </div>
+  </div>
+    <div class="narration" id="narration">
+    <span class="step-num" id="step-num">○</span>
+    <span id="narration-text">Shared storage syncs initialize state across servers...</span>
+  </div>
+  </div>
+  <script src="shared/animation-config.js"></script>
+  <script src="shared/diagram-helpers.js"></script>
+  <script src="shared/canvas-scale.js"></script>
+  <script>
+    const message = document.getElementById('message');
+    const messageType = document.getElementById('message-type');
+    const messageArrow = document.getElementById('message-arrow');
+    const messageDetail = document.getElementById('message-detail');
+    const messageSession = document.getElementById('message-session');
+    const narration = document.getElementById('narration');
+    const narrationText = document.getElementById('narration-text');
+    const stepNum = document.getElementById('step-num');
+    const clientBox = document.getElementById('client-box');
+    const clientState = document.getElementById('client-state');
+    const clientSession = document.getElementById('client-session');
+    const clientCaps = document.getElementById('client-caps');
+    const clientStatus = document.getElementById('client-status');
+    const server1Box = document.getElementById('server-1-box');
+    const server2Box = document.getElementById('server-2-box');
+    const server3Box = document.getElementById('server-3-box');
+    const server1State = document.getElementById('server-1-state');
+    const server2State = document.getElementById('server-2-state');
+    const server3State = document.getElementById('server-3-state');
+    const server1Status = document.getElementById('server-1-status');
+    const server2Status = document.getElementById('server-2-status');
+    const server3Status = document.getElementById('server-3-status');
+    const server1Session = document.getElementById('server-1-session');
+    const server1Caps = document.getElementById('server-1-caps');
+    const server2Session = document.getElementById('server-2-session');
+    const server2Caps = document.getElementById('server-2-caps');
+    const server3Session = document.getElementById('server-3-session');
+    const server3Caps = document.getElementById('server-3-caps');
+    const messageElements = {
+      container: message,
+      header: message.querySelector('.message-header'),
+      type: messageType,
+      arrow: messageArrow,
+      detail: messageDetail,
+      session: messageSession,
+    };
+    // Positions (x centers)
+    const pos = {
+      client: 65,
+      lb: 240,
+      server1: 470,
+      server2: 470,
+      server3: 470
+    };
+    const yClient = 115;
+    const yServer1 = 38;
+    const yServer2 = 143;
+    const yServer3 = 248;
+    function setMessagePos(x, y) {
+      setMessagePosition(message, x, y);
+    }
+    function animateMessage(fromX, fromY, toX, toY, duration, callback) {
+      animateMessageBetween(message, fromX, fromY, toX, toY, duration, callback);
+    }
+    function animatePath(waypoints, totalDuration, callback) {
+      animatePathBetween(message, waypoints, totalDuration, callback);
+    }
+    function configMessage(type, arrow, method, detail, sessionText, sessionError, direction) {
+      configureMessage(messageElements, {
+        type,
+        arrow,
+        method,
+        detail,
+        sessionText,
+        sessionError,
+        direction,
+      });
+    }
+    function buildRequestIdMarkup(requestId) {
+      return `<div class="request-label">Must route to original server</div><div class="request-value">${requestId}</div>`;
+    }
+    function setStatus(element, text, className) {
+      element.textContent = text;
+      element.className = 'entity-status' + (text ? ' visible' : '') + (className ? ' ' + className : '');
+    }
+    function resetAll() {
+      clientBox.className = 'entity-box';
+      server1Box.className = 'entity-box';
+      server2Box.className = 'entity-box';
+      server3Box.className = 'entity-box';
+      clientState.className = 'state-badge';
+      server1State.className = 'state-badge';
+      server2State.className = 'state-badge';
+      server3State.className = 'state-badge';
+      // Clear dynamic content
+      clientSession.textContent = '';
+      clientCaps.innerHTML = '';
+      server1Session.textContent = '';
+      server1Caps.innerHTML = '';
+      server2Session.textContent = '';
+      server2Caps.innerHTML = '';
+      server3Session.textContent = '';
+      server3Caps.innerHTML = '';
+      setStatus(clientStatus, '', '');
+      setStatus(server1Status, '', '');
+      setStatus(server2Status, '', '');
+      setStatus(server3Status, '', '');
+      message.className = 'message';
+    }
+    const steps = [
+      // Step 0: Initial state
+      {
+        setup: () => {
+          resetAll();
+          stepNum.textContent = '○';
+          narrationText.textContent = 'Shared storage syncs initialize state across servers';
+          narration.className = 'narration';
+        },
+        animate: (done) => setTimeout(done, ANIMATION.INITIAL_PAUSE),
+        after: () => {}
+      },
+      // Step 1: Initialize request → LB → Node 1
+      {
+        setup: () => {
+          configMessage('request', '→', 'initialize', 'InitializeRequest', null, false, 'right');
+          setMessagePos(pos.client, yClient);
+          stepNum.textContent = '1';
+          narrationText.textContent = 'Client initializes with capabilities';
+          narration.className = 'narration request-state';
+          clientBox.classList.add('alive', 'active');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.client, y: yClient}, {x: pos.lb, y: yClient}, {x: pos.server1, y: yServer1}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          clientBox.classList.remove('active');
+          server1Box.classList.add('alive', 'active');
+        }
+      },
+      // Step 2: Initialize result ← shared to all nodes
+      {
+        setup: () => {
+          configMessage('response', '←', 'initialize', 'InitializeResult', 'Mcp-Session-Id: sess_shared', false, 'left');
+          setMessagePos(pos.server1, yServer1);
+          stepNum.textContent = '2';
+          narrationText.textContent = 'Shared store syncs session to all servers';
+          narration.className = 'narration response-state';
+          server1Session.textContent = 'sess_shared';
+          server1Caps.innerHTML = '<span class="cap">sampling ✓</span>';
+          server2Session.textContent = 'sess_shared';
+          server2Caps.innerHTML = '<span class="cap">sampling ✓</span>';
+          server3Session.textContent = 'sess_shared';
+          server3Caps.innerHTML = '<span class="cap">sampling ✓</span>';
+          server1State.classList.add('session');
+          server2State.classList.add('session');
+          server3State.classList.add('session');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.server1, y: yServer1}, {x: pos.lb, y: yClient}, {x: pos.client, y: yClient}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          server1Box.classList.remove('active');
+          clientSession.textContent = 'sess_shared';
+          clientCaps.innerHTML = '<span class="cap">tools ✓</span><span class="cap">prompts ✓</span>';
+          clientState.classList.add('session');
+        }
+      },
+      // Step 3: notifications/initialized → LB → Node 1
+      {
+        setup: () => {
+          configMessage('notification', '→', 'initialized', 'notification', 'Mcp-Session-Id: sess_shared', false, 'right');
+          setMessagePos(pos.client, yClient);
+          stepNum.textContent = '3';
+          narrationText.textContent = 'Client sends initialized notification';
+          narration.className = 'narration notification-state';
+          clientBox.classList.add('active');
+          server2Box.classList.add('alive');
+          server3Box.classList.add('alive');
+          setStatus(server2Status, 'SYNCED', '');
+          setStatus(server3Status, 'SYNCED', '');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.client, y: yClient}, {x: pos.lb, y: yClient}, {x: pos.server1, y: yServer1}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          clientBox.classList.remove('active');
+          clientState.classList.add('active');
+          server1State.classList.add('active');
+          server2State.classList.add('active');
+          server3State.classList.add('active');
+          setStatus(server2Status, '', '');
+          setStatus(server3Status, '', '');
+        }
+      },
+      // Step 4: Server sends elicitation request (waiting)
+      {
+        setup: () => {
+          configMessage('server-request', '←', 'elicitation/request', 'ElicitRequest', buildRequestIdMarkup('req_41'), false, 'left');
+          messageSession.classList.add('request-id');
+          setMessagePos(pos.server1, yServer1);
+          stepNum.textContent = '4';
+          narrationText.textContent = 'Node 1 asks client to confirm (WAITING)';
+          narration.className = 'narration waiting-state';
+          server1Box.classList.add('waiting');
+          setStatus(server1Status, 'WAITING', 'waiting');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.server1, y: yServer1}, {x: pos.lb, y: yClient}, {x: pos.client, y: yClient}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          clientBox.classList.add('active');
+        }
+      },
+      // Step 5: Client responds but routed to Node 3
+      {
+        setup: () => {
+          configMessage('client-response', '→', 'elicitation/response', 'ElicitResult', buildRequestIdMarkup('req_41'), false, 'right');
+          messageSession.classList.add('request-id');
+          setMessagePos(pos.client, yClient);
+          stepNum.textContent = '5';
+          narrationText.textContent = 'Client response routed to the wrong server';
+          narration.className = 'narration request-state';
+        },
+        animate: (done) => animatePath(
+          [{x: pos.client, y: yClient}, {x: pos.lb, y: yClient}, {x: pos.server3, y: yServer3}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          clientBox.classList.remove('active');
+          server3Box.classList.add('active');
+        }
+      },
+      // Step 6: Error ← Node 3 doesn't know pending request
+      {
+        setup: () => {
+          configMessage('error-response', '←', 'ERROR', 'Unknown request', buildRequestIdMarkup('req_41'), true, 'left');
+          messageSession.classList.add('request-id');
+          setMessagePos(pos.server3, yServer3);
+          stepNum.textContent = '✗';
+          narrationText.textContent = 'Shared init state is not enough for server requests';
+          narration.className = 'narration error-state';
+          server3Box.classList.add('error');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.server3, y: yServer3}, {x: pos.lb, y: yClient}, {x: pos.client, y: yClient}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          clientBox.classList.add('error');
+        }
+      },
+      // Step 7: Pause on error
+      {
+        setup: () => {
+          message.className = 'message';
+        },
+        animate: (done) => setTimeout(done, ANIMATION.ERROR_PAUSE),
+        after: () => {}
+      }
+    ];
+    runStepSequence(steps);
+    scaleCanvas();
+  </script>
+</body>
+</html>

2026/mcp-connect/animations/http-multinode-stateless.html ADDED Viewed

	@@ -0,0 +1,392 @@

+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="UTF-8">
+  <link rel="stylesheet" href="shared/http-diagram.css">
+  <style>
+    /* Override message-session to be much larger for stateless demo */
+    .message-session.caps {
+      padding: 12px 16px;
+      border-radius: 12px;
+      min-width: 180px;
+      background: #e8f5e9;
+      border: 3px solid #66bb6a;
+      box-shadow: 0 6px 20px rgba(76, 175, 80, 0.35);
+    }
+    .message-session .session-label {
+      font-size: 11px;
+      font-weight: 600;
+      text-transform: uppercase;
+      letter-spacing: 0.5px;
+      color: #2e7d32;
+      margin-bottom: 8px;
+    }
+    .message-session .cap-row {
+      display: flex;
+      gap: 8px;
+      flex-wrap: wrap;
+    }
+    .message-session .cap-chip {
+      font-family: 'SF Mono', Monaco, monospace;
+      font-size: 12px;
+      font-weight: 600;
+      background: white;
+      padding: 6px 12px;
+      border-radius: 8px;
+      border: 2px solid #a5d6a7;
+      color: #2e7d32;
+      box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+    }
+    /* Make server response caps orange themed */
+    .message.response .message-session.caps {
+      background: #fff3e0;
+      border-color: #ffa726;
+      box-shadow: 0 6px 20px rgba(255, 152, 0, 0.35);
+    }
+    .message.response .message-session .session-label {
+      color: #e65100;
+    }
+    .message.response .message-session .cap-chip {
+      border-color: #ffb74d;
+      color: #e65100;
+    }
+  </style>
+</head>
+<body>
+  <div class="canvas-root">
+    <div class="diagram">
+    <!-- Client -->
+    <div class="entity client">
+      <div class="entity-box" id="client-box">
+        <span>MCP Client</span>
+        <span class="entity-status" id="client-status"></span>
+      </div>
+      <div class="state-badge" id="client-state">
+        <div class="badge-title">Connection State</div>
+        <div class="empty-state">stateless</div>
+        <div class="session-id" id="client-session"></div>
+        <div class="caps-row" id="client-caps"></div>
+      </div>
+    </div>
+    <!-- Load Balancer -->
+    <div class="entity lb">
+      <div class="entity-box">LB</div>
+    </div>
+    <!-- Connection lines -->
+    <div class="connection conn-client-lb"></div>
+    <div class="connection conn-lb-servers"></div>
+    <!-- Server Cluster -->
+    <div class="server-cluster">
+      <div class="cluster-label">Streamable HTTP (Stateless)</div>
+    </div>
+    <!-- Server Nodes with session badges to the right -->
+    <div class="entity server server-1">
+      <div class="entity-box" id="server-1-box">
+        <span>Node 1</span>
+        <span class="entity-status" id="server-1-status"></span>
+      </div>
+      <div class="state-badge" id="server-1-state">
+        <div class="badge-title">Connection State</div>
+        <div class="empty-state">stateless</div>
+        <div class="session-id" id="server-1-session"></div>
+        <div class="caps-row" id="server-1-caps"></div>
+      </div>
+    </div>
+    <div class="entity server server-2">
+      <div class="entity-box" id="server-2-box">
+        <span>Node 2</span>
+        <span class="entity-status" id="server-2-status"></span>
+      </div>
+      <div class="state-badge" id="server-2-state">
+        <div class="badge-title">Connection State</div>
+        <div class="empty-state">stateless</div>
+        <div class="session-id"></div>
+        <div class="caps-row"></div>
+      </div>
+    </div>
+    <div class="entity server server-3">
+      <div class="entity-box" id="server-3-box">
+        <span>Node 3</span>
+        <span class="entity-status" id="server-3-status"></span>
+      </div>
+      <div class="state-badge" id="server-3-state">
+        <div class="badge-title">Connection State</div>
+        <div class="empty-state">stateless</div>
+        <div class="session-id" id="server-3-session"></div>
+        <div class="caps-row" id="server-3-caps"></div>
+      </div>
+    </div>
+    <!-- Message -->
+    <div class="message" id="message">
+      <div class="message-header">
+        <span class="message-type" id="message-type">initialize</span>
+        <span class="message-arrow" id="message-arrow">→</span>
+      </div>
+      <div class="message-detail" id="message-detail">InitializeRequest</div>
+      <div class="message-session" id="message-session">Client capabilities: tools, prompts</div>
+    </div>
+  </div>
+    <div class="narration" id="narration">
+    <span class="step-num" id="step-num">○</span>
+    <span id="narration-text">Client sends stateless requests via HTTP...</span>
+  </div>
+  </div>
+  <script src="shared/animation-config.js"></script>
+  <script src="shared/diagram-helpers.js"></script>
+  <script src="shared/canvas-scale.js"></script>
+  <script>
+    const message = document.getElementById('message');
+    const messageType = document.getElementById('message-type');
+    const messageArrow = document.getElementById('message-arrow');
+    const messageDetail = document.getElementById('message-detail');
+    const messageSession = document.getElementById('message-session');
+    const narration = document.getElementById('narration');
+    const narrationText = document.getElementById('narration-text');
+    const stepNum = document.getElementById('step-num');
+    const clientBox = document.getElementById('client-box');
+    const clientState = document.getElementById('client-state');
+    const clientSession = document.getElementById('client-session');
+    const clientCaps = document.getElementById('client-caps');
+    const server1Box = document.getElementById('server-1-box');
+    const server2Box = document.getElementById('server-2-box');
+    const server3Box = document.getElementById('server-3-box');
+    const server1State = document.getElementById('server-1-state');
+    const server2State = document.getElementById('server-2-state');
+    const server3State = document.getElementById('server-3-state');
+    const server1Session = document.getElementById('server-1-session');
+    const server1Caps = document.getElementById('server-1-caps');
+    const server3Session = document.getElementById('server-3-session');
+    const server3Caps = document.getElementById('server-3-caps');
+    const messageElements = {
+      container: message,
+      header: message.querySelector('.message-header'),
+      type: messageType,
+      arrow: messageArrow,
+      detail: messageDetail,
+      session: messageSession,
+    };
+    // Positions (x centers)
+    const pos = {
+      client: 65,
+      lb: 240,
+      server1: 470,
+      server2: 470,
+      server3: 470
+    };
+    const yClient = 115;
+    const yServer1 = 38;
+    const yServer2 = 143;
+    const yServer3 = 248;
+    function buildCapsMarkup(label, caps) {
+      const chips = caps.map((cap) => `<span class="cap-chip">${cap} ✓</span>`).join('');
+      return `<div class="session-label">${label}</div><div class="cap-row">${chips}</div>`;
+    }
+    function setMessagePos(x, y) {
+      setMessagePosition(message, x, y);
+    }
+    function animateMessage(fromX, fromY, toX, toY, duration, callback) {
+      animateMessageBetween(message, fromX, fromY, toX, toY, duration, callback);
+    }
+    function animatePath(waypoints, totalDuration, callback) {
+      animatePathBetween(message, waypoints, totalDuration, callback);
+    }
+    function configMessage(type, arrow, method, detail, sessionText, sessionError, direction) {
+      configureMessage(messageElements, {
+        type,
+        arrow,
+        method,
+        detail,
+        sessionText,
+        sessionError,
+        direction,
+      });
+    }
+    function resetAll() {
+      clientBox.className = 'entity-box';
+      server1Box.className = 'entity-box';
+      server2Box.className = 'entity-box';
+      server3Box.className = 'entity-box';
+      clientState.className = 'state-badge';
+      server1State.className = 'state-badge';
+      server2State.className = 'state-badge';
+      server3State.className = 'state-badge';
+      // Clear dynamic content
+      clientSession.textContent = '';
+      clientCaps.innerHTML = '';
+      server1Session.textContent = '';
+      server1Caps.innerHTML = '';
+      server3Session.textContent = '';
+      server3Caps.innerHTML = '';
+      message.className = 'message';
+    }
+    const steps = [
+      // Step 0: Initial state
+      {
+        setup: () => {
+          resetAll();
+          stepNum.textContent = '○';
+          narrationText.textContent = 'Client sends stateless requests via load balancer...';
+          narration.className = 'narration';
+        },
+        animate: (done) => setTimeout(done, ANIMATION.INITIAL_PAUSE),
+        after: () => {}
+      },
+      // Step 1: tools/call → LB → Node 2 (client caps included)
+      {
+        setup: () => {
+          configMessage(
+            'request',
+            '→',
+            'tools/call',
+            'CallToolRequest',
+            buildCapsMarkup('Client capabilities', ['tools', 'prompts']),
+            false,
+            'right'
+          );
+          messageSession.classList.add('caps');
+          setMessagePos(pos.client, yClient);
+          stepNum.textContent = '1';
+          narrationText.textContent = 'Client sends tool call with capabilities on every request';
+          narration.className = 'narration request-state';
+          clientBox.classList.add('alive', 'active');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.client, y: yClient}, {x: pos.lb, y: yClient}, {x: pos.server2, y: yServer2}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          clientBox.classList.remove('active');
+          server2Box.classList.add('alive', 'active');
+        }
+      },
+      // Step 2: tools/call result ← Node 2 (server caps included)
+      {
+        setup: () => {
+          configMessage(
+            'response',
+            '←',
+            'tools/call',
+            'CallToolResult',
+            buildCapsMarkup('Server capabilities', ['sampling']),
+            false,
+            'left'
+          );
+          messageSession.classList.add('caps');
+          setMessagePos(pos.server2, yServer2);
+          stepNum.textContent = '2';
+          narrationText.textContent = 'Node 2 responds with result and server capabilities';
+          narration.className = 'narration response-state';
+        },
+        animate: (done) => animatePath(
+          [{x: pos.server2, y: yServer2}, {x: pos.lb, y: yClient}, {x: pos.client, y: yClient}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          server2Box.classList.remove('active');
+        }
+      },
+      // Step 3: prompts/list → LB → Node 3
+      {
+        setup: () => {
+          configMessage(
+            'request',
+            '→',
+            'prompts/list',
+            'ListPromptsRequest',
+            buildCapsMarkup('Client capabilities', ['tools', 'prompts']),
+            false,
+            'right'
+          );
+          messageSession.classList.add('caps');
+          setMessagePos(pos.client, yClient);
+          stepNum.textContent = '3';
+          narrationText.textContent = 'Next request can hit any node in the cluster';
+          narration.className = 'narration request-state';
+          clientBox.classList.add('active');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.client, y: yClient}, {x: pos.lb, y: yClient}, {x: pos.server3, y: yServer3}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          clientBox.classList.remove('active');
+          server3Box.classList.add('alive', 'active');
+        }
+      },
+      // Step 4: prompts/list result ← Node 3
+      {
+        setup: () => {
+          configMessage(
+            'response',
+            '←',
+            'prompts/list',
+            'ListPromptsResult',
+            buildCapsMarkup('Server capabilities', ['sampling']),
+            false,
+            'left'
+          );
+          messageSession.classList.add('caps');
+          setMessagePos(pos.server3, yServer3);
+          stepNum.textContent = '4';
+          narrationText.textContent = 'Node 3 replies with its capabilities and result';
+          narration.className = 'narration response-state';
+        },
+        animate: (done) => animatePath(
+          [{x: pos.server3, y: yServer3}, {x: pos.lb, y: yClient}, {x: pos.client, y: yClient}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          server3Box.classList.remove('active');
+        }
+      },
+      // Step 5: Pause before restart
+      {
+        setup: () => {
+          message.className = 'message';
+          stepNum.textContent = '✓';
+          narrationText.textContent = 'Stateless flow — capabilities travel with each message';
+          narration.className = 'narration success-state';
+        },
+        animate: (done) => setTimeout(done, ANIMATION.ERROR_PAUSE),
+        after: () => {}
+      }
+    ];
+    runStepSequence(steps);
+    scaleCanvas();
+  </script>
+</body>
+</html>

2026/mcp-connect/animations/http-multinode.html ADDED Viewed

	@@ -0,0 +1,368 @@

+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="UTF-8">
+  <link rel="stylesheet" href="shared/http-diagram.css">
+</head>
+<body>
+  <div class="canvas-root">
+    <div class="diagram">
+    <!-- Client -->
+    <div class="entity client">
+      <div class="entity-box" id="client-box">
+        <span>MCP Client</span>
+        <span class="entity-status" id="client-status"></span>
+      </div>
+      <div class="state-badge" id="client-state">
+        <div class="badge-title">Connection State</div>
+        <div class="empty-state">Mcp-Session-Id: —</div>
+        <div class="session-id" id="client-session"></div>
+        <div class="caps-row" id="client-caps"></div>
+      </div>
+    </div>
+    <!-- Load Balancer -->
+    <div class="entity lb">
+      <div class="entity-box">LB</div>
+    </div>
+    <!-- Connection lines -->
+    <div class="connection conn-client-lb"></div>
+    <div class="connection conn-lb-servers"></div>
+    <!-- Server Cluster -->
+    <div class="server-cluster">
+      <div class="cluster-label">Streamable HTTP (MCP Servers)</div>
+    </div>
+    <!-- Server Nodes with session badges to the right -->
+    <div class="entity server server-1">
+      <div class="entity-box" id="server-1-box">
+        <span>Node 1</span>
+        <span class="entity-status" id="server-1-status"></span>
+      </div>
+      <div class="state-badge" id="server-1-state">
+        <div class="badge-title">Connection State</div>
+        <div class="empty-state">Mcp-Session-Id: —</div>
+        <div class="session-id" id="server-1-session"></div>
+        <div class="caps-row" id="server-1-caps"></div>
+      </div>
+    </div>
+    <div class="entity server server-2">
+      <div class="entity-box" id="server-2-box">
+        <span>Node 2</span>
+        <span class="entity-status" id="server-2-status"></span>
+      </div>
+      <div class="state-badge" id="server-2-state">
+        <div class="badge-title">Connection State</div>
+        <div class="empty-state">Mcp-Session-Id: —</div>
+        <div class="session-id"></div>
+        <div class="caps-row"></div>
+      </div>
+    </div>
+    <div class="entity server server-3">
+      <div class="entity-box" id="server-3-box">
+        <span>Node 3</span>
+        <span class="entity-status" id="server-3-status"></span>
+      </div>
+      <div class="state-badge" id="server-3-state">
+        <div class="badge-title">Connection State</div>
+        <div class="empty-state">Mcp-Session-Id: —</div>
+        <div class="session-id" id="server-3-session"></div>
+        <div class="caps-row" id="server-3-caps"></div>
+      </div>
+    </div>
+    <!-- Message -->
+    <div class="message" id="message">
+      <div class="message-header">
+        <span class="message-type" id="message-type">initialize</span>
+        <span class="message-arrow" id="message-arrow">→</span>
+      </div>
+      <div class="message-detail" id="message-detail">InitializeRequest</div>
+      <div class="message-session" id="message-session">Mcp-Session-Id: sess_abc123</div>
+    </div>
+  </div>
+    <div class="narration" id="narration">
+    <span class="step-num" id="step-num">○</span>
+    <span id="narration-text">Client connects via HTTP...</span>
+  </div>
+  </div>
+  <script src="shared/animation-config.js"></script>
+  <script src="shared/diagram-helpers.js"></script>
+  <script src="shared/canvas-scale.js"></script>
+  <script>
+    const message = document.getElementById('message');
+    const messageType = document.getElementById('message-type');
+    const messageArrow = document.getElementById('message-arrow');
+    const messageDetail = document.getElementById('message-detail');
+    const messageSession = document.getElementById('message-session');
+    const narration = document.getElementById('narration');
+    const narrationText = document.getElementById('narration-text');
+    const stepNum = document.getElementById('step-num');
+    const clientBox = document.getElementById('client-box');
+    const clientState = document.getElementById('client-state');
+    const clientSession = document.getElementById('client-session');
+    const clientCaps = document.getElementById('client-caps');
+    const server1Box = document.getElementById('server-1-box');
+    const server2Box = document.getElementById('server-2-box');
+    const server3Box = document.getElementById('server-3-box');
+    const server1State = document.getElementById('server-1-state');
+    const server2State = document.getElementById('server-2-state');
+    const server3State = document.getElementById('server-3-state');
+    const server1Session = document.getElementById('server-1-session');
+    const server1Caps = document.getElementById('server-1-caps');
+    const server3Session = document.getElementById('server-3-session');
+    const server3Caps = document.getElementById('server-3-caps');
+    const messageElements = {
+      container: message,
+      header: message.querySelector('.message-header'),
+      type: messageType,
+      arrow: messageArrow,
+      detail: messageDetail,
+      session: messageSession,
+    };
+    // Positions (x centers)
+    const pos = {
+      client: 65,
+      lb: 240,
+      server1: 470,
+      server2: 470,
+      server3: 470
+    };
+    const yClient = 115;
+    const yServer1 = 38;
+    const yServer2 = 143;
+    const yServer3 = 248;
+    function setMessagePos(x, y) {
+      setMessagePosition(message, x, y);
+    }
+    function animateMessage(fromX, fromY, toX, toY, duration, callback) {
+      animateMessageBetween(message, fromX, fromY, toX, toY, duration, callback);
+    }
+    function animatePath(waypoints, totalDuration, callback) {
+      animatePathBetween(message, waypoints, totalDuration, callback);
+    }
+    function configMessage(type, arrow, method, detail, sessionText, sessionError, direction) {
+      configureMessage(messageElements, {
+        type,
+        arrow,
+        method,
+        detail,
+        sessionText,
+        sessionError,
+        direction,
+      });
+    }
+    function resetAll() {
+      clientBox.className = 'entity-box';
+      server1Box.className = 'entity-box';
+      server2Box.className = 'entity-box';
+      server3Box.className = 'entity-box';
+      clientState.className = 'state-badge';
+      server1State.className = 'state-badge';
+      server2State.className = 'state-badge';
+      server3State.className = 'state-badge';
+      // Clear dynamic content
+      clientSession.textContent = '';
+      clientCaps.innerHTML = '';
+      server1Session.textContent = '';
+      server1Caps.innerHTML = '';
+      server3Session.textContent = '';
+      server3Caps.innerHTML = '';
+      message.className = 'message';
+    }
+    const steps = [
+      // Step 0: Initial state
+      {
+        setup: () => {
+          resetAll();
+          stepNum.textContent = '○';
+          narrationText.textContent = 'Client connects to server cluster via load balancer...';
+          narration.className = 'narration';
+        },
+        animate: (done) => setTimeout(done, ANIMATION.INITIAL_PAUSE),
+        after: () => {}
+      },
+      // Step 1: Initialize request → LB → Node 1
+      {
+        setup: () => {
+          configMessage('request', '→', 'initialize', 'InitializeRequest', null, false, 'right');
+          setMessagePos(pos.client, yClient);
+          stepNum.textContent = '1';
+          narrationText.textContent = 'Client sends InitializeRequest with capabilities';
+          narration.className = 'narration request-state';
+          clientBox.classList.add('alive', 'active');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.client, y: yClient}, {x: pos.lb, y: yClient}, {x: pos.server1, y: yServer1}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          clientBox.classList.remove('active');
+          server1Box.classList.add('alive', 'active');
+        }
+      },
+      // Step 2: Initialize result ← with session ID
+      {
+        setup: () => {
+          configMessage('response', '←', 'initialize', 'InitializeResult', 'Mcp-Session-Id: sess_abc123', false, 'left');
+          setMessagePos(pos.server1, yServer1);
+          stepNum.textContent = '2';
+          narrationText.textContent = 'Node 1 creates session, stores client capabilities';
+          narration.className = 'narration response-state';
+          // Populate server 1 state
+          server1Session.textContent = 'sess_abc123';
+          server1Caps.innerHTML = '<span class="cap">sampling ✓</span>';
+          server1State.classList.add('session');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.server1, y: yServer1}, {x: pos.lb, y: yClient}, {x: pos.client, y: yClient}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          server1Box.classList.remove('active');
+          clientSession.textContent = 'sess_abc123';
+          clientState.classList.add('session');
+        }
+      },
+      // Step 3: notifications/initialized → LB → Node 1
+      {
+        setup: () => {
+          configMessage('notification', '→', 'initialized', 'notification', 'Mcp-Session-Id: sess_abc123', false, 'right');
+          setMessagePos(pos.client, yClient);
+          stepNum.textContent = '3';
+          narrationText.textContent = 'Client sends initialized notification';
+          narration.className = 'narration notification-state';
+          clientBox.classList.add('active');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.client, y: yClient}, {x: pos.lb, y: yClient}, {x: pos.server1, y: yServer1}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          clientBox.classList.remove('active');
+          // Populate client state
+          clientSession.textContent = 'sess_abc123';
+          clientCaps.innerHTML = '<span class="cap">tools ✓</span><span class="cap">prompts ✓</span>';
+          clientState.classList.add('active');
+          server1State.classList.add('active');
+        }
+      },
+      // Step 4: tools/call → LB → Node 1 (correct)
+      {
+        setup: () => {
+          configMessage('request', '→', 'tools/call', 'CallToolRequest', 'Mcp-Session-Id: sess_abc123', false, 'right');
+          setMessagePos(pos.client, yClient);
+          stepNum.textContent = '4';
+          narrationText.textContent = 'Client calls tool with session ID';
+          narration.className = 'narration request-state';
+          clientBox.classList.add('active');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.client, y: yClient}, {x: pos.lb, y: yClient}, {x: pos.server1, y: yServer1}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          clientBox.classList.remove('active');
+          server1Box.classList.add('active');
+        }
+      },
+      // Step 5: tools/call result ←
+      {
+        setup: () => {
+          configMessage('response', '←', 'tools/call', 'CallToolResult', 'Mcp-Session-Id: sess_abc123', false, 'left');
+          setMessagePos(pos.server1, yServer1);
+          stepNum.textContent = '5';
+          narrationText.textContent = 'Node 1 has session + capabilities — success ✓';
+          narration.className = 'narration response-state';
+        },
+        animate: (done) => animatePath(
+          [{x: pos.server1, y: yServer1}, {x: pos.lb, y: yClient}, {x: pos.client, y: yClient}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          server1Box.classList.remove('active');
+        }
+      },
+      // Step 6: Another request → LB → Node 3 (WRONG!)
+      {
+        setup: () => {
+          configMessage('request', '→', 'tools/call', 'CallToolRequest', 'Mcp-Session-Id: sess_abc123', false, 'right');
+          setMessagePos(pos.client, yClient);
+          stepNum.textContent = '6';
+          narrationText.textContent = 'Next request... LB routes to Node 3!';
+          narration.className = 'narration request-state';
+          clientBox.classList.add('active');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.client, y: yClient}, {x: pos.lb, y: yClient}, {x: pos.server3, y: yServer3}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          clientBox.classList.remove('active');
+          server3Box.classList.add('alive');
+        }
+      },
+      // Step 7: Error! Node 3 doesn't know this session
+      {
+        setup: () => {
+          configMessage('error-response', '←', '404 Not Found', 'Unknown session', 'Mcp-Session-Id: sess_abc123', true, 'left');
+          setMessagePos(pos.server3, yServer3);
+          stepNum.textContent = '✗';
+          narrationText.textContent = 'Node 3 has no session or capabilities — fails!';
+          narration.className = 'narration error-state';
+          server3Box.classList.add('error');
+          // Show error state with question marks
+          server3Session.textContent = 'sess_abc123 ?';
+          server3Caps.innerHTML = '<span class="cap">sampling ?</span>';
+          server3State.classList.add('error');
+        },
+        animate: (done) => animatePath(
+          [{x: pos.server3, y: yServer3}, {x: pos.lb, y: yClient}, {x: pos.client, y: yClient}],
+          ANIMATION.MSG_DURATION,
+          done
+        ),
+        after: () => {
+          clientBox.classList.add('error');
+        }
+      },
+      // Step 8: Pause on error
+      {
+        setup: () => {
+          message.className = 'message';
+        },
+        animate: (done) => setTimeout(done, ANIMATION.ERROR_PAUSE),
+        after: () => {}
+      }
+    ];
+    runStepSequence(steps);
+    scaleCanvas();
+  </script>
+</body>
+</html>

2026/mcp-connect/animations/mcp-mrtr-flow.html ADDED Viewed

	@@ -0,0 +1,221 @@

+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="UTF-8">
+  <style>
+    * { margin: 0; padding: 0; box-sizing: border-box; }
+    body {
+      background: transparent;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+      width: 100vw;
+      height: 100vh;
+      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+      padding: 0;
+      overflow: hidden;
+    }
+    .flow-window {
+      background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
+      border-radius: 16px;
+      padding: 20px;
+      width: 480px;
+      height: 460px;
+      box-shadow: 0 10px 40px rgba(0,0,0,0.3);
+      overflow: hidden;
+      display: flex;
+      flex-direction: column;
+    }
+    .flow-header {
+      display: flex;
+      justify-content: space-between;
+      margin-bottom: 16px;
+      padding-bottom: 10px;
+      border-bottom: 1px solid #333;
+    }
+    .flow-header span {
+      font-size: 14px;
+      font-weight: 600;
+      text-transform: uppercase;
+      letter-spacing: 1px;
+    }
+    .client-label { color: #0b93f6; }
+    .server-label { color: #f5a623; }
+    .flow-messages {
+      display: flex;
+      flex-direction: column;
+      gap: 10px;
+      flex: 1;
+      overflow-y: auto;
+      padding-right: 6px;
+      scrollbar-width: none;
+    }
+    .flow-messages::-webkit-scrollbar {
+      width: 0;
+      height: 0;
+    }
+    .flow-msg {
+      display: flex;
+      align-items: center;
+      gap: 10px;
+      opacity: 0;
+      transform: translateY(10px);
+    }
+    .flow-msg.show {
+      animation: slideIn 0.4s ease forwards;
+    }
+    .flow-msg.fade-out {
+      animation: fadeOut 0.8s ease forwards;
+    }
+    .flow-msg.client-msg { flex-direction: row; }
+    .flow-msg.server-msg { flex-direction: row-reverse; }
+    .arrow {
+      font-size: 20px;
+      flex-shrink: 0;
+      width: 30px;
+      text-align: center;
+    }
+    .client-msg .arrow { color: #0b93f6; }
+    .server-msg .arrow { color: #f5a623; }
+    .msg-content {
+      flex: 1;
+      padding: 12px 16px;
+      border-radius: 10px;
+      font-size: 14px;
+      line-height: 1.5;
+    }
+    .client-msg .msg-content {
+      background: linear-gradient(135deg, #0b93f6 0%, #007AFF 100%);
+      color: white;
+      border-bottom-left-radius: 3px;
+    }
+    .server-msg .msg-content {
+      background: linear-gradient(135deg, #f5a623 0%, #f09819 100%);
+      color: white;
+      border-bottom-right-radius: 3px;
+    }
+    .msg-type {
+      font-weight: 600;
+      font-size: 12px;
+      opacity: 0.9;
+      margin-bottom: 4px;
+    }
+    .msg-detail {
+      font-size: 12px;
+      opacity: 0.85;
+    }
+    @keyframes slideIn {
+      from { opacity: 0; transform: translateY(10px); }
+      to { opacity: 1; transform: translateY(0); }
+    }
+    @keyframes fadeOut {
+      from { opacity: 1; }
+      to { opacity: 0; }
+    }
+  </style>
+</head>
+<body>
+  <div class="flow-window canvas-root">
+    <div class="flow-header">
+      <span class="client-label">Client</span>
+      <span class="server-label">Server</span>
+    </div>
+    <div class="flow-messages">
+      <div class="flow-msg client-msg" data-delay="0">
+        <div class="msg-content">
+          <div class="msg-type">CallToolRequest</div>
+          <div class="msg-detail">tool: "deploy_app", env: "production"</div>
+        </div>
+        <div class="arrow">→</div>
+      </div>
+      <div class="flow-msg server-msg" data-delay="2500">
+        <div class="msg-content">
+          <div class="msg-type">elicitation/create</div>
+          <div class="msg-detail">server waits for client reply</div>
+        </div>
+        <div class="arrow">←</div>
+      </div>
+      <div class="flow-msg client-msg" data-delay="5000">
+        <div class="msg-content">
+          <div class="msg-type">elicitation/response</div>
+          <div class="msg-detail">client must retain request id</div>
+        </div>
+        <div class="arrow">→</div>
+      </div>
+      <div class="flow-msg server-msg" data-delay="7500">
+        <div class="msg-content">
+          <div class="msg-type">sampling/createMessage</div>
+          <div class="msg-detail">server keeps call context</div>
+        </div>
+        <div class="arrow">←</div>
+      </div>
+      <div class="flow-msg client-msg" data-delay="10000">
+        <div class="msg-content">
+          <div class="msg-type">sampling/response</div>
+          <div class="msg-detail">client responds on new request</div>
+        </div>
+        <div class="arrow">→</div>
+      </div>
+      <div class="flow-msg server-msg" data-delay="12500">
+        <div class="msg-content">
+          <div class="msg-type">CallToolResult</div>
+          <div class="msg-detail">status: "success" ✓</div>
+        </div>
+        <div class="arrow">←</div>
+      </div>
+    </div>
+  </div>
+  <script src="shared/sequence-helpers.js"></script>
+  <script src="shared/canvas-scale.js"></script>
+  <script>
+    const flowMessages = document.querySelector('.flow-messages');
+    const flowItems = Array.from(document.querySelectorAll('.flow-msg'));
+    const delays = flowItems.map((item) => parseInt(item.dataset.delay, 10) || 0);
+    const maxDelay = delays.length ? Math.max(...delays) : 0;
+    const FADE_OUT_OFFSET = 2500;
+    const CYCLE_PAUSE = 3500;
+    const cycleDuration = maxDelay + FADE_OUT_OFFSET + 1000 + CYCLE_PAUSE;
+    flowMessages.scrollTop = 0;
+    setInterval(() => {
+      flowMessages.scrollTop = 0;
+    }, cycleDuration);
+    runSequenceAnimation({
+      selectors: ['.flow-msg'],
+      cyclePause: CYCLE_PAUSE,
+      fadeOutOffset: FADE_OUT_OFFSET,
+      initialDelay: 500,
+      onShow: (el) => {
+        el.scrollIntoView({ block: 'nearest' });
+      },
+    });
+    scaleCanvas();
+  </script>
+</body>
+</html>

2026/mcp-connect/animations/mcp-mrtr-request.html ADDED Viewed

	@@ -0,0 +1,233 @@

+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="UTF-8">
+  <style>
+    * { margin: 0; padding: 0; box-sizing: border-box; }
+    body {
+      background: transparent;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+      width: 100vw;
+      height: 100vh;
+      font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
+      padding: 0;
+      overflow: hidden;
+    }
+    .api-window {
+      background: linear-gradient(135deg, #1e1e1e 0%, #252526 100%);
+      border-radius: 16px;
+      padding: 12px;
+      width: 480px;
+      height: 460px;
+      box-shadow: 0 10px 40px rgba(0,0,0,0.3);
+      overflow: hidden;
+      display: flex;
+      flex-direction: column;
+    }
+    .api-header {
+      color: #888;
+      font-size: 11px;
+      margin-bottom: 4px;
+      padding-bottom: 3px;
+      border-bottom: 1px solid #333;
+    }
+    .request-label {
+      color: #569cd6;
+      font-size: 10px;
+      margin-bottom: 2px;
+      opacity: 0;
+    }
+    .request-label.show { animation: fadeIn 0.3s ease forwards; }
+    .request-label.fade-out { animation: fadeOut 0.8s ease forwards; }
+    .api-content {
+      font-size: 10px;
+      line-height: 1.3;
+      flex: 1;
+      overflow: auto;
+      padding-right: 6px;
+      scrollbar-width: none;
+    }
+    .api-content::-webkit-scrollbar {
+      display: none;
+    }
+    .json-brace { color: #d4d4d4; }
+    .json-key { color: #9cdcfe; }
+    .json-string { color: #ce9178; }
+    .json-bracket { color: #d4d4d4; }
+    .json-bool { color: #569cd6; }
+    .msg-block {
+      opacity: 0;
+      transform: translateX(-10px);
+      margin: 1px 0;
+      padding: 1px 0 1px 6px;
+      color: #d4d4d4;
+    }
+    .msg-block.show {
+      animation: slideInLeft 0.4s ease forwards;
+    }
+    .msg-block.fade-out {
+      animation: fadeOut 0.8s ease forwards;
+    }
+    .msg-block.client-req { border-left: 2px solid #0b93f6; }
+    .msg-block.server-req { border-left: 2px solid #f5a623; }
+    .msg-block.client-resp { border-left: 2px solid #34c759; }
+    .static-content {
+      opacity: 0;
+    }
+    .static-content.show { animation: fadeIn 0.3s ease forwards; }
+    .static-content.fade-out { animation: fadeOut 0.8s ease forwards; }
+    .request-group {
+      margin-bottom: 2px;
+      padding-bottom: 2px;
+      border-bottom: 1px dashed #333;
+    }
+    .request-group:last-child {
+      border-bottom: none;
+    }
+    @keyframes slideInLeft {
+      from { opacity: 0; transform: translateX(-10px); }
+      to { opacity: 1; transform: translateX(0); }
+    }
+    @keyframes fadeIn {
+      from { opacity: 0; }
+      to { opacity: 1; }
+    }
+    @keyframes fadeOut {
+      from { opacity: 1; }
+      to { opacity: 0; }
+    }
+    .dim { opacity: 0.5; }
+  </style>
+</head>
+<body>
+  <div class="api-window canvas-root">
+    <div class="api-header">POST /mcp (Client → Server)</div>
+    <div class="api-content">
+      <!-- Request 1: Initial CallToolRequest -->
+      <div class="request-group">
+        <div class="request-label" data-delay="0">Request #1 — tools/call</div>
+        <div class="msg-block client-req" data-delay="0">
+          <span class="json-brace">{</span><br>
+          &nbsp;&nbsp;<span class="json-key">"method"</span>: <span class="json-string">"tools/call"</span>,<br>
+          &nbsp;&nbsp;<span class="json-key">"params"</span>: <span class="json-brace">{</span> <span class="json-key">"name"</span>: <span class="json-string">"deploy_app"</span>, <span class="json-key">"env"</span>: <span class="json-string">"production"</span> <span class="json-brace">}</span><br>
+          <span class="json-brace">}</span>
+        </div>
+      </div>
+      <!-- Response 1: Incomplete result with dependent requests -->
+      <div class="request-group">
+        <div class="request-label" data-delay="2500">Response #1 — incomplete (dependent_requests)</div>
+        <div class="msg-block server-req" data-delay="2500">
+          <span class="json-brace">{</span><br>
+          &nbsp;&nbsp;<span class="json-key">"dependent_requests"</span>: <span class="json-brace">{</span><br>
+          &nbsp;&nbsp;&nbsp;&nbsp;<span class="json-key">"confirm"</span>: <span class="json-string">"elicitation/create"</span><br>
+          &nbsp;&nbsp;<span class="json-brace">}</span><br>
+          <span class="json-brace">}</span>
+        </div>
+      </div>
+      <!-- Request 2: Retry with dependent responses -->
+      <div class="request-group">
+        <div class="request-label" data-delay="5000">Request #2 — retry (elicitation response)</div>
+        <div class="msg-block client-req" data-delay="5000">
+          <span class="json-brace">{</span><br>
+          &nbsp;&nbsp;<span class="json-key">"method"</span>: <span class="json-string">"tools/call"</span>,<br>
+          &nbsp;&nbsp;<span class="json-key">"params"</span>: <span class="json-brace">{</span> <span class="json-key">"name"</span>: <span class="json-string">"deploy_app"</span> <span class="json-brace">}</span>,<br>
+          &nbsp;&nbsp;<span class="json-key">"dependent_responses"</span>: <span class="json-brace">{</span><br>
+          &nbsp;&nbsp;&nbsp;&nbsp;<span class="json-key">"confirm"</span>: <span class="json-brace">{</span> <span class="json-key">"result"</span>: <span class="json-brace">{</span> <span class="json-key">"action"</span>: <span class="json-string">"accept"</span> <span class="json-brace">}</span> <span class="json-brace">}</span><br>
+          &nbsp;&nbsp;<span class="json-brace">}</span><br>
+          <span class="json-brace">}</span>
+        </div>
+      </div>
+      <!-- Response 2: Incomplete result with next dependent request -->
+      <div class="request-group">
+        <div class="request-label" data-delay="7500">Response #2 — sampling request (dependent_requests)</div>
+        <div class="msg-block server-req" data-delay="7500">
+          <span class="json-brace">{</span><br>
+          &nbsp;&nbsp;<span class="json-key">"dependent_requests"</span>: <span class="json-brace">{</span><br>
+          &nbsp;&nbsp;&nbsp;&nbsp;<span class="json-key">"summary"</span>: <span class="json-string">"sampling/createMessage"</span><br>
+          &nbsp;&nbsp;<span class="json-brace">}</span><br>
+          <span class="json-brace">}</span>
+        </div>
+      </div>
+      <div class="request-group">
+        <div class="request-label" data-delay="10000">Request #3 — retry (sampling response added)</div>
+        <div class="msg-block client-req" data-delay="10000">
+          <span class="json-brace">{</span><br>
+          &nbsp;&nbsp;<span class="json-key">"method"</span>: <span class="json-string">"tools/call"</span>,<br>
+          &nbsp;&nbsp;<span class="json-key">"params"</span>: <span class="json-brace">{</span> <span class="json-key">"name"</span>: <span class="json-string">"deploy_app"</span> <span class="json-brace">}</span>,<br>
+          &nbsp;&nbsp;<span class="json-key">"dependent_responses"</span>: <span class="json-brace">{</span><br>
+          &nbsp;&nbsp;&nbsp;&nbsp;<span class="json-key">"confirm"</span>: <span class="json-brace">{</span> <span class="json-key">"result"</span>: <span class="json-brace">{</span> <span class="json-key">"action"</span>: <span class="json-string">"accept"</span> <span class="json-brace">}</span> <span class="json-brace">}</span>,<br>
+          &nbsp;&nbsp;&nbsp;&nbsp;<span class="json-key">"summary"</span>: <span class="json-brace">{</span> <span class="json-key">"result"</span>: <span class="json-brace">{</span> <span class="json-key">"content"</span>: <span class="json-string">"..."</span> <span class="json-brace">}</span> <span class="json-brace">}</span><br>
+          &nbsp;&nbsp;<span class="json-brace">}</span><br>
+          <span class="json-brace">}</span>
+        </div>
+      </div>
+      <!-- Response 3: Final result -->
+      <div class="request-group">
+        <div class="request-label" data-delay="12500">Response #3 — CallToolResult</div>
+        <div class="msg-block server-req" data-delay="12500">
+          <span class="json-brace">{</span><br>
+          &nbsp;&nbsp;<span class="json-key">"result"</span>: <span class="json-brace">{</span> <span class="json-key">"status"</span>: <span class="json-string">"success"</span> <span class="json-brace">}</span><br>
+          <span class="json-brace">}</span>
+        </div>
+      </div>
+    </div>
+  </div>
+  <script src="shared/sequence-helpers.js"></script>
+  <script src="shared/canvas-scale.js"></script>
+  <script>
+    const apiContent = document.querySelector('.api-content');
+    const timelineItems = Array.from(document.querySelectorAll('.msg-block, .request-label'));
+    const delays = timelineItems.map((item) => parseInt(item.dataset.delay, 10) || 0);
+    const maxDelay = delays.length ? Math.max(...delays) : 0;
+    const FADE_OUT_OFFSET = 2500;
+    const CYCLE_PAUSE = 3500;
+    const cycleDuration = maxDelay + FADE_OUT_OFFSET + 1000 + CYCLE_PAUSE;
+    apiContent.scrollTop = 0;
+    setInterval(() => {
+      apiContent.scrollTop = 0;
+    }, cycleDuration);
+    runSequenceAnimation({
+      selectors: ['.msg-block', '.request-label'],
+      cyclePause: CYCLE_PAUSE,
+      fadeOutOffset: FADE_OUT_OFFSET,
+      initialDelay: 500,
+      lastDelayOverride: 12500,
+      onShow: (el) => {
+        if (el.classList.contains('msg-block')) {
+          el.scrollIntoView({ block: 'nearest' });
+        }
+      },
+    });
+    scaleCanvas();
+  </script>
+</body>
+</html>

2026/mcp-connect/animations/mcp-stateful-request.html ADDED Viewed

	@@ -0,0 +1,318 @@

+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="UTF-8">
+  <style>
+    * { margin: 0; padding: 0; box-sizing: border-box; }
+    body {
+      background: transparent;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+      width: 100vw;
+      height: 100vh;
+      font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
+      padding: 0;
+      overflow: hidden;
+    }
+    .api-window {
+      background: linear-gradient(135deg, #1e1e1e 0%, #252526 100%);
+      border-radius: 16px;
+      padding: 20px;
+      width: 480px;
+      height: 460px;
+      box-shadow: 0 10px 40px rgba(0,0,0,0.3);
+      overflow: hidden;
+      position: relative;
+    }
+    .api-header {
+      color: #888;
+      font-size: 11px;
+      margin-bottom: 12px;
+      padding-bottom: 8px;
+      border-bottom: 1px solid #333;
+    }
+    .direction-label {
+      font-size: 10px;
+      margin-bottom: 10px;
+      padding: 4px 8px;
+      border-radius: 4px;
+      display: inline-block;
+    }
+    .to-server { background: #0b93f620; color: #0b93f6; }
+    .to-client { background: #f5a62320; color: #f5a623; }
+    .single-message {
+      position: absolute;
+      top: 80px;
+      left: 20px;
+      right: 20px;
+      opacity: 0;
+      transform: scale(0.95);
+    }
+    .single-message.show {
+      animation: popIn 0.3s ease forwards;
+    }
+    .single-message.fade-out {
+      animation: popOut 0.25s ease forwards;
+    }
+    .msg-box {
+      padding: 16px;
+      border-radius: 10px;
+      font-size: 11px;
+      line-height: 1.5;
+      color: #d4d4d4;
+    }
+    .client-msg .msg-box {
+      background: linear-gradient(135deg, #0b93f615 0%, #007AFF15 100%);
+      border: 1px solid #0b93f640;
+    }
+    .server-msg .msg-box {
+      background: linear-gradient(135deg, #f5a62315 0%, #f0981915 100%);
+      border: 1px solid #f5a62340;
+    }
+    .json-brace { color: #d4d4d4; }
+    .json-key { color: #9cdcfe; }
+    .json-string { color: #ce9178; }
+    .json-bool { color: #569cd6; }
+    .state-indicator {
+      position: absolute;
+      bottom: 20px;
+      left: 20px;
+      right: 20px;
+      padding: 12px;
+      background: #2d2d3a;
+      border-radius: 8px;
+      font-size: 10px;
+      color: #888;
+      opacity: 0;
+    }
+    .state-indicator.show {
+      animation: fadeIn 0.3s ease forwards;
+    }
+    .state-indicator.fade-out {
+      animation: fadeOut 0.5s ease forwards;
+    }
+    .state-indicator .label {
+      color: #f5a623;
+      font-weight: 600;
+      margin-bottom: 4px;
+    }
+    .state-dots {
+      display: flex;
+      gap: 6px;
+      margin-top: 8px;
+    }
+    .state-dot {
+      width: 8px;
+      height: 8px;
+      border-radius: 50%;
+      background: #444;
+    }
+    .state-dot.active { background: #f5a623; }
+    @keyframes popIn {
+      from { opacity: 0; transform: scale(0.95); }
+      to { opacity: 1; transform: scale(1); }
+    }
+    @keyframes popOut {
+      from { opacity: 1; transform: scale(1); }
+      to { opacity: 0; transform: scale(0.95); }
+    }
+    @keyframes fadeIn {
+      from { opacity: 0; }
+      to { opacity: 1; }
+    }
+    @keyframes fadeOut {
+      from { opacity: 1; }
+      to { opacity: 0; }
+    }
+  </style>
+</head>
+<body>
+  <div class="api-window canvas-root">
+    <div class="api-header">Current: Individual Messages (Stateful)</div>
+    <!-- Message 1: CallToolRequest -->
+    <div class="single-message client-msg" id="msg1">
+      <div class="direction-label to-server">→ Client to Server</div>
+      <div class="msg-box">
+        <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;<span class="json-key">"method"</span>: <span class="json-string">"tools/call"</span>,<br>
+        &nbsp;&nbsp;<span class="json-key">"params"</span>: <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;&nbsp;&nbsp;<span class="json-key">"name"</span>: <span class="json-string">"deploy_app"</span>,<br>
+        &nbsp;&nbsp;&nbsp;&nbsp;<span class="json-key">"env"</span>: <span class="json-string">"production"</span><br>
+        &nbsp;&nbsp;<span class="json-brace">}</span><br>
+        <span class="json-brace">}</span>
+      </div>
+    </div>
+    <!-- Message 2: ElicitationRequest -->
+    <div class="single-message server-msg" id="msg2">
+      <div class="direction-label to-client">← Server to Client</div>
+      <div class="msg-box">
+        <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;<span class="json-key">"method"</span>: <span class="json-string">"elicitation/create"</span>,<br>
+        &nbsp;&nbsp;<span class="json-key">"params"</span>: <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;&nbsp;&nbsp;<span class="json-key">"message"</span>: <span class="json-string">"Confirm deployment to production?"</span><br>
+        &nbsp;&nbsp;<span class="json-brace">}</span><br>
+        <span class="json-brace">}</span>
+      </div>
+    </div>
+    <!-- Message 3: ElicitationResponse -->
+    <div class="single-message client-msg" id="msg3">
+      <div class="direction-label to-server">→ Client to Server</div>
+      <div class="msg-box">
+        <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;<span class="json-key">"result"</span>: <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;&nbsp;&nbsp;<span class="json-key">"confirmed"</span>: <span class="json-bool">true</span><br>
+        &nbsp;&nbsp;<span class="json-brace">}</span><br>
+        <span class="json-brace">}</span>
+      </div>
+    </div>
+    <!-- Message 4: SamplingRequest -->
+    <div class="single-message server-msg" id="msg4">
+      <div class="direction-label to-client">← Server to Client</div>
+      <div class="msg-box">
+        <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;<span class="json-key">"method"</span>: <span class="json-string">"sampling/createMessage"</span>,<br>
+        &nbsp;&nbsp;<span class="json-key">"params"</span>: <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;&nbsp;&nbsp;<span class="json-key">"prompt"</span>: <span class="json-string">"Generate deployment summary"</span><br>
+        &nbsp;&nbsp;<span class="json-brace">}</span><br>
+        <span class="json-brace">}</span>
+      </div>
+    </div>
+    <!-- Message 5: SamplingResponse -->
+    <div class="single-message client-msg" id="msg5">
+      <div class="direction-label to-server">→ Client to Server</div>
+      <div class="msg-box">
+        <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;<span class="json-key">"result"</span>: <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;&nbsp;&nbsp;<span class="json-key">"content"</span>: <span class="json-string">"Deployed v2.1.0 to prod..."</span><br>
+        &nbsp;&nbsp;<span class="json-brace">}</span><br>
+        <span class="json-brace">}</span>
+      </div>
+    </div>
+    <!-- Message 6: CallToolResult -->
+    <div class="single-message server-msg" id="msg6">
+      <div class="direction-label to-client">← Server to Client</div>
+      <div class="msg-box">
+        <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;<span class="json-key">"result"</span>: <span class="json-brace">{</span><br>
+        &nbsp;&nbsp;&nbsp;&nbsp;<span class="json-key">"status"</span>: <span class="json-string">"success"</span><br>
+        &nbsp;&nbsp;<span class="json-brace">}</span><br>
+        <span class="json-brace">}</span>
+      </div>
+    </div>
+    <!-- State indicator -->
+    <div class="state-indicator" id="stateBox">
+      <div class="label">⚠ Server must maintain state</div>
+      <div>Remembering: tool call, elicitation, sampling context...</div>
+      <div class="state-dots">
+        <div class="state-dot" id="dot1"></div>
+        <div class="state-dot" id="dot2"></div>
+        <div class="state-dot" id="dot3"></div>
+        <div class="state-dot" id="dot4"></div>
+        <div class="state-dot" id="dot5"></div>
+        <div class="state-dot" id="dot6"></div>
+      </div>
+    </div>
+  </div>
+  <script src="shared/canvas-scale.js"></script>
+  <script>
+    const messages = [
+      document.getElementById('msg1'),
+      document.getElementById('msg2'),
+      document.getElementById('msg3'),
+      document.getElementById('msg4'),
+      document.getElementById('msg5'),
+      document.getElementById('msg6')
+    ];
+    const dots = [
+      document.getElementById('dot1'),
+      document.getElementById('dot2'),
+      document.getElementById('dot3'),
+      document.getElementById('dot4'),
+      document.getElementById('dot5'),
+      document.getElementById('dot6')
+    ];
+    const stateBox = document.getElementById('stateBox');
+    const CYCLE_PAUSE = 3000;
+    const MSG_DURATION = 2500;
+    function runAnimation() {
+      // Reset
+      messages.forEach(m => m.classList.remove('show', 'fade-out'));
+      dots.forEach(d => d.classList.remove('active'));
+      stateBox.classList.remove('show', 'fade-out');
+      // Force reflow to ensure class removal is processed
+      void document.body.offsetHeight;
+      // Show state box
+      setTimeout(() => stateBox.classList.add('show'), 200);
+      // Show each message one at a time
+      messages.forEach((msg, i) => {
+        const showTime = i * MSG_DURATION;
+        const hideTime = showTime + MSG_DURATION - 300;
+        setTimeout(() => {
+          // Hide previous
+          if (i > 0) messages[i-1].classList.add('fade-out');
+          // Show current
+          msg.classList.add('show');
+          // Activate dot
+          dots[i].classList.add('active');
+        }, showTime);
+      });
+      // Fade out last message and state
+      const totalTime = messages.length * MSG_DURATION;
+      setTimeout(() => {
+        messages[messages.length - 1].classList.add('fade-out');
+        stateBox.classList.add('fade-out');
+      }, totalTime);
+      // Restart
+      setTimeout(runAnimation, totalTime + 1500 + CYCLE_PAUSE);
+    }
+    function startAnimation() {
+      setTimeout(runAnimation, 500);
+    }
+    if (document.readyState === 'complete') {
+      startAnimation();
+    } else {
+      window.addEventListener('load', startAnimation, { once: true });
+    }
+    window.addEventListener('pageshow', startAnimation);
+    scaleCanvas();
+  </script>
+</body>
+</html>

2026/mcp-connect/animations/shared/animation-config.js ADDED Viewed

	@@ -0,0 +1,32 @@

+// Shared animation timing constants
+const ANIMATION = {
+  MSG_DURATION: 1200,   // message travel time (ms)
+  STEP_PAUSE: 1500,    // pause between steps (ms)
+  INITIAL_PAUSE: 3000, // pause at start before animation begins (ms)
+  ERROR_PAUSE: 4000,   // pause on error state (ms)
+};
+// Shared color palette
+const COLORS = {
+  client: '#1976d2',
+  clientLight: '#e3f2fd',
+  clientActive: '#bbdefb',
+  server: '#ef6c00',
+  serverLight: '#fff3e0',
+  serverActive: '#ffe0b2',
+  notification: '#7b1fa2',
+  success: '#4caf50',
+  successLight: '#e8f5e9',
+  successBorder: '#a5d6a7',
+  error: '#c62828',
+  errorLight: '#ffebee',
+  errorBorder: '#ef9a9a',
+  inactive: '#9e9e9e',
+  inactiveLight: '#f5f5f5',
+  inactiveBorder: '#e0e0e0',
+};

2026/mcp-connect/animations/shared/canvas-scale.js ADDED Viewed

	@@ -0,0 +1,44 @@

+function scaleCanvas({ selector = '.canvas-root', minScale = 0.25, maxScale = 4 } = {}) {
+  const canvases = Array.from(document.querySelectorAll(selector));
+  if (canvases.length === 0) {
+    return;
+  }
+  function updateBaseSize(canvas) {
+    if (canvas.dataset.baseWidth && canvas.dataset.baseHeight) {
+      return;
+    }
+    const { width, height } = canvas.getBoundingClientRect();
+    if (width && height) {
+      canvas.dataset.baseWidth = width;
+      canvas.dataset.baseHeight = height;
+    }
+  }
+  function updateScale() {
+    canvases.forEach((canvas) => {
+      updateBaseSize(canvas);
+      const baseWidth = parseFloat(canvas.dataset.baseWidth || '0');
+      const baseHeight = parseFloat(canvas.dataset.baseHeight || '0');
+      if (!baseWidth || !baseHeight) {
+        return;
+      }
+      const scale = Math.min(window.innerWidth / baseWidth, window.innerHeight / baseHeight);
+      const clamped = Math.max(minScale, Math.min(scale, maxScale));
+      canvas.style.transform = `scale(${clamped})`;
+      canvas.style.transformOrigin = 'center';
+    });
+  }
+  const observer = new ResizeObserver(() => updateScale());
+  canvases.forEach((canvas) => {
+    observer.observe(canvas);
+    updateBaseSize(canvas);
+  });
+  window.addEventListener('resize', updateScale);
+  window.addEventListener('load', () => requestAnimationFrame(updateScale));
+  requestAnimationFrame(updateScale);
+}

2026/mcp-connect/animations/shared/diagram-helpers.js ADDED Viewed

	@@ -0,0 +1,152 @@

+function setMessagePosition(message, x, y) {
+  message.style.left = `${x}px`;
+  message.style.top = `${y}px`;
+}
+function animateMessageBetween(message, fromX, fromY, toX, toY, duration, callback) {
+  const startTime = performance.now();
+  function step(currentTime) {
+    const elapsed = currentTime - startTime;
+    const progress = Math.min(elapsed / duration, 1);
+    const eased = 1 - Math.pow(1 - progress, 3);
+    setMessagePosition(
+      message,
+      fromX + (toX - fromX) * eased,
+      fromY + (toY - fromY) * eased
+    );
+    if (progress < 1) {
+      requestAnimationFrame(step);
+    } else if (callback) {
+      callback();
+    }
+  }
+  requestAnimationFrame(step);
+}
+function animatePathBetween(message, waypoints, totalDuration, callback) {
+  if (waypoints.length < 2) {
+    if (callback) {
+      callback();
+    }
+    return;
+  }
+  let totalDist = 0;
+  for (let i = 0; i < waypoints.length - 1; i++) {
+    const dx = waypoints[i + 1].x - waypoints[i].x;
+    const dy = waypoints[i + 1].y - waypoints[i].y;
+    totalDist += Math.sqrt(dx * dx + dy * dy);
+  }
+  const durations = [];
+  for (let i = 0; i < waypoints.length - 1; i++) {
+    const dx = waypoints[i + 1].x - waypoints[i].x;
+    const dy = waypoints[i + 1].y - waypoints[i].y;
+    const legDist = Math.sqrt(dx * dx + dy * dy);
+    durations.push((legDist / totalDist) * totalDuration);
+  }
+  let i = 0;
+  function nextLeg() {
+    if (i < waypoints.length - 1) {
+      animateMessageBetween(
+        message,
+        waypoints[i].x, waypoints[i].y,
+        waypoints[i + 1].x, waypoints[i + 1].y,
+        durations[i],
+        () => {
+          i++;
+          nextLeg();
+        }
+      );
+    } else if (callback) {
+      callback();
+    }
+  }
+  nextLeg();
+}
+function configureMessage(elements, {
+  type,
+  arrow,
+  method,
+  detail,
+  sessionText,
+  sessionError = false,
+  direction = 'right',
+} = {}) {
+  const container = elements.container;
+  const header = elements.header || container.querySelector('.message-header');
+  container.className = `message ${type} visible`;
+  elements.type.textContent = method;
+  elements.arrow.textContent = arrow;
+  elements.detail.textContent = detail;
+  if (elements.session) {
+    if (sessionText) {
+      elements.session.innerHTML = sessionText;
+      elements.session.style.display = 'block';
+      elements.session.className = 'message-session' + (sessionError ? ' error' : '');
+    } else {
+      elements.session.style.display = 'none';
+    }
+  }
+  if (header) {
+    header.style.flexDirection = direction === 'left' ? 'row-reverse' : 'row';
+  }
+}
+function runStepSequence(steps, { initialDelay = 100, stepPause, startOnLoad = true } = {}) {
+  if (!steps || steps.length === 0) {
+    return;
+  }
+  const pause = stepPause ?? (typeof ANIMATION !== 'undefined' ? ANIMATION.STEP_PAUSE : 1500);
+  let currentStep = 0;
+  let animationTimer = null;
+  function runStep() {
+    if (currentStep >= steps.length) {
+      currentStep = 0;
+    }
+    const step = steps[currentStep];
+    step.setup();
+    animationTimer = setTimeout(() => {
+      step.animate(() => {
+        if (step.after) {
+          step.after();
+        }
+        currentStep++;
+        animationTimer = setTimeout(runStep, pause);
+      });
+    }, initialDelay);
+  }
+  const start = () => {
+    if (animationTimer) {
+      clearTimeout(animationTimer);
+    }
+    currentStep = 0;
+    runStep();
+  };
+  if (startOnLoad) {
+    if (document.readyState === 'complete') {
+      start();
+    } else {
+      window.addEventListener('load', start, { once: true });
+    }
+    window.addEventListener('pageshow', start);
+  } else {
+    start();
+  }
+}

2026/mcp-connect/animations/shared/http-diagram.css ADDED Viewed

	@@ -0,0 +1,505 @@

+* { margin: 0; padding: 0; box-sizing: border-box; }
+body {
+  background: #fafafa;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 100vw;
+  height: 100vh;
+  overflow: hidden;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+  padding: 0;
+}
+.canvas-root {
+  display: inline-flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  padding: 30px 20px;
+}
+.diagram {
+  position: relative;
+  width: 780px;
+  height: 320px;
+}
+/* Entity base styles */
+.entity {
+  position: absolute;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 8px;
+}
+/* Client - starts grey, becomes blue */
+.client { left: 0; top: 100px; }
+.client .entity-box {
+  width: 130px;
+  height: 80px;
+  border-radius: 16px;
+  background: #f5f5f5;
+  border: 3px solid #9e9e9e;
+  color: #9e9e9e;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-weight: 600;
+  font-size: 14px;
+  transition: all 0.5s ease;
+  text-align: center;
+  line-height: 1.3;
+  gap: 2px;
+}
+.client .entity-box.alive {
+  background: #e3f2fd;
+  border-color: #1976d2;
+  color: #1976d2;
+}
+.client .entity-box.active {
+  background: #bbdefb;
+  border-color: #1976d2;
+  color: #1976d2;
+  box-shadow: 0 4px 20px rgba(25, 118, 210, 0.3);
+}
+/* Load Balancer */
+.lb { left: 200px; top: 105px; }
+.lb .entity-box {
+  width: 80px;
+  height: 70px;
+  background: linear-gradient(180deg, #fafafa 0%, #e0e0e0 100%);
+  border: 2px solid #9e9e9e;
+  border-radius: 8px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  color: #616161;
+  font-weight: 600;
+  font-size: 13px;
+  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
+}
+/* Server cluster bounding box */
+.server-cluster {
+  position: absolute;
+  left: 400px;
+  top: 0;
+  width: 300px;
+  height: 320px;
+  border: 3px solid #ef6c00;
+  border-radius: 20px;
+  background: rgba(255, 243, 224, 0.3);
+}
+.cluster-label {
+  position: absolute;
+  top: -14px;
+  left: 24px;
+  background: #fafafa;
+  padding: 4px 16px;
+  font-size: 16px;
+  font-weight: 600;
+  color: #ef6c00;
+  white-space: nowrap;
+}
+/* Server nodes - horizontal layout with badge to right */
+.server {
+  flex-direction: row;
+  align-items: center;
+  gap: 12px;
+  left: 420px;
+}
+.server-1 { top: 25px; }
+.server-2 { top: 130px; }
+.server-3 { top: 235px; }
+.server .entity-box {
+  width: 100px;
+  height: 55px;
+  border-radius: 12px;
+  background: #f5f5f5;
+  border: 3px solid #bdbdbd;
+  color: #9e9e9e;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-weight: 600;
+  font-size: 13px;
+  transition: all 0.5s ease;
+  text-align: center;
+  gap: 2px;
+}
+.server .entity-box.alive {
+  background: #fff3e0;
+  border-color: #ef6c00;
+  color: #ef6c00;
+}
+.server .entity-box.active {
+  background: #ffe0b2;
+  border-color: #ef6c00;
+  color: #ef6c00;
+  box-shadow: 0 4px 20px rgba(239, 108, 0, 0.3);
+}
+.server .entity-box.error {
+  background: #ffebee;
+  border-color: #c62828;
+  color: #c62828;
+  animation: shake 0.4s ease;
+}
+.server .entity-box.waiting {
+  animation: waitingPulse 1s ease-in-out infinite;
+}
+@keyframes waitingPulse {
+  0%, 100% {
+    background: #fff3e0;
+    border-color: #ef6c00;
+    box-shadow: 0 4px 20px rgba(239, 108, 0, 0.2);
+  }
+  50% {
+    background: #ffe0b2;
+    border-color: #e65100;
+    box-shadow: 0 4px 30px rgba(239, 108, 0, 0.5);
+  }
+}
+@keyframes shake {
+  0%, 100% { transform: translateX(0); }
+  25% { transform: translateX(-6px); }
+  75% { transform: translateX(6px); }
+}
+.entity-status {
+  font-size: 9px;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: 0.3px;
+  opacity: 0;
+  transition: opacity 0.3s ease;
+  padding: 2px 6px;
+  border-radius: 3px;
+}
+.entity-status.visible {
+  opacity: 1;
+}
+.entity-status.waiting {
+  background: #e65100;
+  color: white;
+  animation: statusBlink 0.8s ease-in-out infinite;
+}
+@keyframes statusBlink {
+  0%, 100% { opacity: 1; transform: scale(1); }
+  50% { opacity: 0.7; transform: scale(1.05); }
+}
+/* State badge - shows session + capabilities */
+.state-badge {
+  display: flex;
+  flex-direction: column;
+  align-items: flex-start;
+  gap: 4px;
+  padding: 8px 10px;
+  border-radius: 8px;
+  font-size: 10px;
+  font-weight: 600;
+  transition: all 0.4s ease;
+  /* Default: gray/inactive state */
+  background: #f5f5f5;
+  border: 1px solid #e0e0e0;
+  color: #9e9e9e;
+  min-width: 140px;
+  min-height: 64px;
+}
+.state-badge.active {
+  background: #e8f5e9;
+  border: 1px solid #a5d6a7;
+  color: #2e7d32;
+}
+.state-badge.error {
+  background: #ffebee;
+  border-color: #ef9a9a;
+  color: #c62828;
+}
+.state-badge .badge-title {
+  font-size: 8px;
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+  color: #888;
+  font-weight: 500;
+}
+.state-badge .session-id {
+  font-family: 'SF Mono', Monaco, monospace;
+  font-size: 10px;
+  display: none;
+}
+.state-badge.active .session-id,
+.state-badge.error .session-id {
+  display: block;
+}
+.state-badge.session .session-id {
+  display: block;
+}
+.state-badge.session .empty-state {
+  display: none;
+}
+.state-badge .caps-row {
+  display: none;
+  gap: 4px;
+  flex-wrap: wrap;
+}
+.state-badge.active .caps-row,
+.state-badge.error .caps-row {
+  display: flex;
+}
+.state-badge .cap {
+  font-family: 'SF Mono', Monaco, monospace;
+  font-size: 8px;
+  background: white;
+  padding: 1px 5px;
+  border-radius: 3px;
+  border: 1px solid #e0e0e0;
+}
+.state-badge.active .cap {
+  border-color: #c8e6c9;
+}
+.state-badge.error .cap {
+  border-color: #ef9a9a;
+}
+.state-badge .empty-state {
+  font-size: 9px;
+  color: #bdbdbd;
+  font-style: italic;
+}
+.state-badge.active .empty-state,
+.state-badge.error .empty-state {
+  display: none;
+}
+/* Client state badge stays below */
+.client .state-badge {
+  align-items: center;
+}
+.client .state-badge .caps-row {
+  justify-content: center;
+}
+/* Connection lines */
+.connection {
+  position: absolute;
+  height: 2px;
+  background: #bdbdbd;
+}
+.conn-client-lb {
+  left: 140px;
+  width: 60px;
+  top: 140px;
+}
+.conn-lb-servers {
+  left: 290px;
+  width: 110px;
+  top: 140px;
+}
+/* The moving message */
+.message {
+  position: absolute;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 3px;
+  opacity: 0;
+  transition: opacity 0.2s ease;
+  pointer-events: none;
+  z-index: 100;
+  transform: translateX(-50%);
+}
+.message.visible {
+  opacity: 1;
+}
+.message-header {
+  display: flex;
+  align-items: center;
+  gap: 5px;
+}
+.message-arrow {
+  font-size: 24px;
+  font-weight: bold;
+}
+.message-type {
+  padding: 5px 10px;
+  border-radius: 6px;
+  font-size: 11px;
+  font-weight: 600;
+  white-space: nowrap;
+  box-shadow: 0 2px 10px rgba(0,0,0,0.15);
+}
+.message-detail {
+  padding: 3px 8px;
+  border-radius: 4px;
+  font-size: 9px;
+  font-family: 'SF Mono', Monaco, monospace;
+  background: rgba(255,255,255,0.95);
+  color: #666;
+  border: 1px solid #e0e0e0;
+}
+.message-session {
+  padding: 3px 8px;
+  border-radius: 4px;
+  font-size: 9px;
+  font-family: 'SF Mono', Monaco, monospace;
+  background: #e8f5e9;
+  color: #2e7d32;
+  border: 1px solid #a5d6a7;
+}
+.message-session.caps {
+  display: flex;
+  flex-direction: column;
+  gap: 3px;
+  align-items: flex-start;
+}
+.message-session .session-label {
+  font-size: 8px;
+  text-transform: uppercase;
+  letter-spacing: 0.4px;
+  color: #2e7d32;
+}
+.message-session .cap-row {
+  display: flex;
+  gap: 4px;
+  flex-wrap: wrap;
+}
+.message-session .cap-chip {
+  font-family: 'SF Mono', Monaco, monospace;
+  font-size: 8px;
+  background: white;
+  padding: 1px 5px;
+  border-radius: 3px;
+  border: 1px solid #c8e6c9;
+  color: #2e7d32;
+}
+.message-session.error {
+  background: #ffebee;
+  color: #c62828;
+  border-color: #ef9a9a;
+}
+.message.request .message-arrow { color: #1976d2; }
+.message.request .message-type {
+  background: #1976d2;
+  color: white;
+}
+.message.response .message-arrow { color: #ef6c00; }
+.message.response .message-type {
+  background: #ef6c00;
+  color: white;
+}
+.message.notification .message-arrow { color: #7b1fa2; }
+.message.notification .message-type {
+  background: #7b1fa2;
+  color: white;
+}
+.message.server-request .message-arrow { color: #ef6c00; }
+.message.server-request .message-type {
+  background: #ef6c00;
+  color: white;
+}
+.message.client-response .message-arrow { color: #1976d2; }
+.message.client-response .message-type {
+  background: #1976d2;
+  color: white;
+}
+.message.error-response .message-arrow { color: #c62828; }
+.message.error-response .message-type {
+  background: #c62828;
+  color: white;
+}
+/* Narration */
+.narration {
+  margin-top: 25px;
+  padding: 14px 20px;
+  background: white;
+  border: 2px solid #e0e0e0;
+  border-radius: 12px;
+  font-size: 14px;
+  color: #333;
+  max-width: 700px;
+  text-align: center;
+  min-height: 52px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+.narration .step-num {
+  display: inline-block;
+  width: 26px;
+  height: 26px;
+  background: #9e9e9e;
+  color: white;
+  border-radius: 50%;
+  font-size: 13px;
+  font-weight: 600;
+  line-height: 26px;
+  text-align: center;
+  margin-right: 12px;
+  flex-shrink: 0;
+  transition: background 0.3s ease;
+}
+.narration.request-state .step-num { background: #1976d2; }
+.narration.response-state .step-num { background: #ef6c00; }
+.narration.notification-state .step-num { background: #7b1fa2; }
+.narration.waiting-state .step-num { background: #e65100; }
+.narration.error-state .step-num { background: #c62828; }
+.narration.error-state { border-color: #ef9a9a; background: #fff8f8; }
+.narration.success-state .step-num { background: #4caf50; }

2026/mcp-connect/animations/shared/sequence-helpers.js ADDED Viewed

	@@ -0,0 +1,83 @@

+function runSequenceAnimation({
+  selectors,
+  cyclePause = 2000,
+  fadeOutOffset = 4000,
+  initialDelay = 500,
+  lastDelayOverride,
+  onShow,
+  scrollContainerSelector,
+} = {}) {
+  const groups = (selectors || []).flatMap((selector) =>
+    Array.from(document.querySelectorAll(selector))
+  );
+  if (groups.length === 0) {
+    return;
+  }
+  const delays = groups.map((el) => parseInt(el.dataset.delay, 10) || 0);
+  const maxDelay = Math.max(...delays, 0);
+  const finalDelay = Math.max(maxDelay, lastDelayOverride || 0);
+  const scrollContainer = scrollContainerSelector
+    ? document.querySelector(scrollContainerSelector)
+    : null;
+  let timers = [];
+  function clearTimers() {
+    timers.forEach((id) => clearTimeout(id));
+    timers = [];
+  }
+  function schedule(fn, delay) {
+    const id = setTimeout(fn, delay);
+    timers.push(id);
+    return id;
+  }
+  function runAnimation() {
+    clearTimers();
+    groups.forEach((el) => el.classList.remove('show', 'fade-out'));
+    if (scrollContainer) {
+      scrollContainer.scrollTop = 0;
+    }
+    // Force reflow to ensure class removal is processed before re-adding
+    void document.body.offsetHeight;
+    groups.forEach((el) => {
+      const delay = parseInt(el.dataset.delay, 10) || 0;
+      schedule(() => {
+        el.classList.add('show');
+        if (onShow) {
+          onShow(el);
+        }
+        if (scrollContainer) {
+          scrollContainer.scrollTop = scrollContainer.scrollHeight;
+        }
+      }, delay);
+    });
+    const fadeOutTime = finalDelay + fadeOutOffset;
+    schedule(() => {
+      groups.forEach((el) => el.classList.add('fade-out'));
+    }, fadeOutTime);
+    schedule(runAnimation, fadeOutTime + 1000 + cyclePause);
+  }
+  function start() {
+    clearTimers();
+    schedule(runAnimation, initialDelay);
+  }
+  if (document.readyState === 'complete') {
+    start();
+  } else {
+    window.addEventListener('load', start, { once: true });
+  }
+  window.addEventListener('pageshow', () => {
+    start();
+  });
+}

2026/mcp-connect/animations/stdio-simple.html ADDED Viewed

	@@ -0,0 +1,722 @@

+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="UTF-8">
+  <style>
+    * { margin: 0; padding: 0; box-sizing: border-box; }
+    body {
+      background: #fafafa;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      width: 100vw;
+      height: 100vh;
+      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+      padding: 0;
+      overflow: hidden;
+    }
+    .canvas-root {
+      display: inline-flex;
+      flex-direction: column;
+      align-items: center;
+      justify-content: center;
+      padding: 24px 20px;
+    }
+    /* Process boundary container */
+    .process-boundary {
+      border: 2px dashed #9e9e9e;
+      border-radius: 20px;
+      padding: 30px 30px;
+      background: rgba(255, 255, 255, 0.5);
+      position: relative;
+    }
+    .process-label {
+      position: absolute;
+      top: -14px;
+      left: 50%;
+      transform: translateX(-50%);
+      background: #fafafa;
+      padding: 4px 20px;
+      font-size: 16px;
+      font-weight: 600;
+      color: #616161;
+      white-space: nowrap;
+    }
+    .diagram {
+      position: relative;
+      width: 500px;
+      height: 220px;
+    }
+    /* Entity base styles */
+    .entity {
+      position: absolute;
+      display: flex;
+      flex-direction: column;
+      align-items: center;
+      gap: 10px;
+    }
+    /* Client - starts grey, becomes blue */
+    .client { left: 0; top: 30px; }
+    .client .entity-box {
+      width: 130px;
+      min-height: 75px;
+      height: 80px;
+      border-radius: 16px;
+      background: #f5f5f5;
+      border: 3px solid #9e9e9e;
+      color: #9e9e9e;
+      display: flex;
+      flex-direction: column;
+      align-items: center;
+      justify-content: center;
+      font-weight: 600;
+      font-size: 14px;
+      transition: all 0.5s ease;
+      text-align: center;
+      line-height: 1.3;
+      gap: 4px;
+    }
+    .client .entity-box.alive {
+      background: #e3f2fd;
+      border-color: #1976d2;
+      color: #1976d2;
+    }
+    .client .entity-box.active {
+      background: #bbdefb;
+      border-color: #1976d2;
+      color: #1976d2;
+      box-shadow: 0 4px 20px rgba(25, 118, 210, 0.3);
+    }
+    /* Server - starts grey, becomes orange */
+    .server { right: 0; top: 30px; }
+    .server .entity-box {
+      width: 130px;
+      min-height: 75px;
+      height: 80px;
+      border-radius: 16px;
+      background: #f5f5f5;
+      border: 3px solid #9e9e9e;
+      color: #9e9e9e;
+      display: flex;
+      flex-direction: column;
+      align-items: center;
+      justify-content: center;
+      font-weight: 600;
+      font-size: 14px;
+      transition: all 0.5s ease;
+      text-align: center;
+      line-height: 1.3;
+      gap: 4px;
+    }
+    .server .entity-box.alive {
+      background: #fff3e0;
+      border-color: #ef6c00;
+      color: #ef6c00;
+    }
+    .server .entity-box.active {
+      background: #ffe0b2;
+      border-color: #ef6c00;
+      color: #ef6c00;
+      box-shadow: 0 4px 20px rgba(239, 108, 0, 0.3);
+    }
+    .server .entity-box.waiting {
+      animation: waitingPulse 1s ease-in-out infinite;
+    }
+    @keyframes waitingPulse {
+      0%, 100% {
+        background: #fff3e0;
+        border-color: #ef6c00;
+        box-shadow: 0 4px 20px rgba(239, 108, 0, 0.2);
+      }
+      50% {
+        background: #ffe0b2;
+        border-color: #e65100;
+        box-shadow: 0 4px 30px rgba(239, 108, 0, 0.5);
+      }
+    }
+    .entity-status {
+      font-size: 10px;
+      font-weight: 600;
+      text-transform: uppercase;
+      letter-spacing: 0.5px;
+      opacity: 0;
+      transition: opacity 0.3s ease;
+      padding: 2px 8px;
+      border-radius: 4px;
+    }
+    .entity-status.visible {
+      opacity: 1;
+    }
+    .entity-status.waiting {
+      background: #e65100;
+      color: white;
+      animation: statusBlink 0.8s ease-in-out infinite;
+    }
+    @keyframes statusBlink {
+      0%, 100% { opacity: 1; transform: scale(1); }
+      50% { opacity: 0.7; transform: scale(1.05); }
+    }
+    /* State indicator badge - shows capabilities learned */
+    .state-badge {
+      display: flex;
+      flex-direction: column;
+      align-items: center;
+      gap: 4px;
+      padding: 8px 12px;
+      border-radius: 10px;
+      font-size: 11px;
+      font-weight: 600;
+      transition: all 0.4s ease;
+      width: 130px;
+      min-height: 75px;
+      /* Default: gray/inactive state */
+      background: #f5f5f5;
+      border: 1px solid #e0e0e0;
+      color: #9e9e9e;
+    }
+    .state-badge.active {
+      background: #e8f5e9;
+      border: 1px solid #a5d6a7;
+      color: #2e7d32;
+    }
+    .state-badge .badge-title {
+      font-size: 9px;
+      text-transform: uppercase;
+      letter-spacing: 0.5px;
+      color: #999;
+      font-weight: 500;
+    }
+    .state-badge.active .badge-title {
+      color: #666;
+    }
+    .state-badge .caps-list {
+      display: flex;
+      flex-wrap: wrap;
+      gap: 4px;
+      justify-content: center;
+    }
+    .state-badge .cap {
+      display: flex;
+      align-items: center;
+      gap: 3px;
+      font-family: 'SF Mono', Monaco, monospace;
+      font-size: 9px;
+      background: white;
+      padding: 2px 6px;
+      border-radius: 4px;
+      border: 1px solid #e0e0e0;
+      opacity: 0;
+      transition: opacity 0.3s ease;
+    }
+    .state-badge.active .cap {
+      border-color: #c8e6c9;
+      opacity: 1;
+    }
+    .state-badge .cap .check {
+      color: #4caf50;
+      font-weight: bold;
+    }
+    .state-badge .empty-state {
+      font-size: 9px;
+      color: #bdbdbd;
+      font-style: italic;
+    }
+    .state-badge.active .empty-state {
+      display: none;
+    }
+    /* Connection line */
+    .connection {
+      position: absolute;
+      left: 145px;
+      right: 145px;
+      top: 70px;
+      height: 2px;
+      background: #bdbdbd;
+    }
+    .connection-label {
+      position: absolute;
+      left: 50%;
+      top: 50%;
+      transform: translate(-50%, -50%);
+      background: rgba(255, 255, 255, 0.9);
+      padding: 4px 12px;
+      font-size: 11px;
+      color: #757575;
+      font-weight: 500;
+      white-space: nowrap;
+      border-radius: 4px;
+    }
+    /* The moving message - centered around arrow */
+    .message {
+      position: absolute;
+      display: flex;
+      flex-direction: column;
+      align-items: center;
+      gap: 4px;
+      opacity: 0;
+      transition: opacity 0.2s ease;
+      pointer-events: none;
+      z-index: 100;
+      transform: translateX(-50%);
+    }
+    .message.visible {
+      opacity: 1;
+    }
+    .message-header {
+      display: flex;
+      align-items: center;
+      gap: 6px;
+    }
+    .message-arrow {
+      font-size: 28px;
+      font-weight: bold;
+    }
+    .message-type {
+      padding: 6px 12px;
+      border-radius: 8px;
+      font-size: 12px;
+      font-weight: 600;
+      white-space: nowrap;
+      box-shadow: 0 3px 12px rgba(0,0,0,0.15);
+    }
+    .message-detail {
+      padding: 3px 8px;
+      border-radius: 4px;
+      font-size: 10px;
+      font-family: 'SF Mono', Monaco, monospace;
+      background: rgba(255,255,255,0.95);
+      color: #666;
+      border: 1px solid #e0e0e0;
+    }
+    .message.request .message-arrow { color: #1976d2; }
+    .message.request .message-type {
+      background: #1976d2;
+      color: white;
+    }
+    .message.response .message-arrow { color: #ef6c00; }
+    .message.response .message-type {
+      background: #ef6c00;
+      color: white;
+    }
+    .message.notification .message-arrow { color: #7b1fa2; }
+    .message.notification .message-type {
+      background: #7b1fa2;
+      color: white;
+    }
+    .message.server-request .message-arrow { color: #ef6c00; }
+    .message.server-request .message-type {
+      background: #ef6c00;
+      color: white;
+    }
+    .message.client-response .message-arrow { color: #1976d2; }
+    .message.client-response .message-type {
+      background: #1976d2;
+      color: white;
+    }
+    /* Narration */
+    .narration {
+      margin-top: 30px;
+      padding: 16px 24px;
+      background: white;
+      border: 2px solid #e0e0e0;
+      border-radius: 12px;
+      font-size: 15px;
+      color: #333;
+      max-width: 650px;
+      text-align: center;
+      min-height: 56px;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+    }
+    .narration .step-num {
+      display: inline-block;
+      width: 28px;
+      height: 28px;
+      background: #9e9e9e;
+      color: white;
+      border-radius: 50%;
+      font-size: 14px;
+      font-weight: 600;
+      line-height: 28px;
+      text-align: center;
+      margin-right: 14px;
+      flex-shrink: 0;
+      transition: background 0.3s ease;
+    }
+    .narration.request-state .step-num { background: #1976d2; }
+    .narration.response-state .step-num { background: #ef6c00; }
+    .narration.notification-state .step-num { background: #7b1fa2; }
+    .narration.success-state .step-num { background: #4caf50; }
+    .narration.waiting-state .step-num { background: #e65100; }
+  </style>
+</head>
+<body>
+  <div class="canvas-root">
+    <div class="process-boundary">
+    <div class="process-label">STDIO (Same Process)</div>
+    <div class="diagram">
+      <!-- Client -->
+      <div class="entity client">
+        <div class="entity-box" id="client-box">
+          <span>MCP Client</span>
+          <span class="entity-status" id="client-status"></span>
+        </div>
+        <div class="state-badge" id="client-state">
+          <div class="badge-title">Connection State</div>
+          <div class="empty-state">not connected</div>
+          <div class="caps-list">
+            <span class="cap"><span class="check">✓</span> tools</span>
+            <span class="cap"><span class="check">✓</span> prompts</span>
+          </div>
+        </div>
+      </div>
+      <!-- Connection line -->
+      <div class="connection">
+        <div class="connection-label">stdin / stdout</div>
+      </div>
+      <!-- Server -->
+      <div class="entity server">
+        <div class="entity-box" id="server-box">
+          <span>MCP Server</span>
+          <span class="entity-status" id="server-status"></span>
+        </div>
+        <div class="state-badge" id="server-state">
+          <div class="badge-title">Connection State</div>
+          <div class="empty-state">not connected</div>
+          <div class="caps-list">
+            <span class="cap"><span class="check">✓</span> sampling</span>
+          </div>
+        </div>
+      </div>
+      <!-- Message -->
+      <div class="message" id="message">
+        <div class="message-header">
+          <span class="message-type" id="message-type">initialize</span>
+          <span class="message-arrow" id="message-arrow">→</span>
+        </div>
+        <div class="message-detail" id="message-detail">request</div>
+      </div>
+    </div>
+  </div>
+    <div class="narration" id="narration">
+    <span class="step-num" id="step-num">○</span>
+    <span id="narration-text">Client spawns server as subprocess...</span>
+  </div>
+  </div>
+  <script src="shared/animation-config.js"></script>
+  <script src="shared/diagram-helpers.js"></script>
+  <script src="shared/canvas-scale.js"></script>
+  <script>
+    const message = document.getElementById('message');
+    const messageType = document.getElementById('message-type');
+    const messageArrow = document.getElementById('message-arrow');
+    const messageDetail = document.getElementById('message-detail');
+    const narration = document.getElementById('narration');
+    const narrationText = document.getElementById('narration-text');
+    const stepNum = document.getElementById('step-num');
+    const clientBox = document.getElementById('client-box');
+    const serverBox = document.getElementById('server-box');
+    const clientState = document.getElementById('client-state');
+    const serverState = document.getElementById('server-state');
+    const clientStatus = document.getElementById('client-status');
+    const serverStatus = document.getElementById('server-status');
+    const messageElements = {
+      container: message,
+      header: message.querySelector('.message-header'),
+      type: messageType,
+      arrow: messageArrow,
+      detail: messageDetail,
+    };
+    const clientCenter = 65;
+    const serverCenter = 435;
+    const msgY = 45;
+    function setMessagePos(x, y) {
+      setMessagePosition(message, x, y);
+    }
+    function animateMessage(fromX, fromY, toX, toY, duration, callback) {
+      animateMessageBetween(message, fromX, fromY, toX, toY, duration, callback);
+    }
+    function configMessage(type, arrow, method, detail, direction) {
+      configureMessage(messageElements, {
+        type,
+        arrow,
+        method,
+        detail,
+        direction,
+      });
+    }
+    function setStatus(element, text, className) {
+      element.textContent = text;
+      element.className = 'entity-status' + (text ? ' visible' : '') + (className ? ' ' + className : '');
+    }
+    const steps = [
+      // Step 0: Initial grey state
+      {
+        setup: () => {
+          message.className = 'message';
+          stepNum.textContent = '○';
+          narrationText.textContent = 'Client spawns server as subprocess...';
+          narration.className = 'narration';
+          clientBox.className = 'entity-box';
+          serverBox.className = 'entity-box';
+          clientState.classList.remove('active');
+          serverState.classList.remove('active');
+          setStatus(clientStatus, '', '');
+          setStatus(serverStatus, '', '');
+        },
+        animate: (done) => setTimeout(done, ANIMATION.INITIAL_PAUSE),
+        after: () => {}
+      },
+      // Step 1: Initialize request Client → Server
+      {
+        setup: () => {
+          configMessage('request', '→', 'initialize', 'InitializeRequest', 'right');
+          setMessagePos(clientCenter, msgY);
+          stepNum.textContent = '1';
+          narrationText.textContent = 'Client sends InitializeRequest with capabilities';
+          narration.className = 'narration request-state';
+          clientBox.classList.add('alive', 'active');
+        },
+        animate: (done) => animateMessage(clientCenter, msgY, serverCenter, msgY, ANIMATION.MSG_DURATION, done),
+        after: () => {
+          clientBox.classList.remove('active');
+          serverBox.classList.add('alive', 'active');
+        }
+      },
+      // Step 2: Initialize result Server → Client
+      {
+        setup: () => {
+          configMessage('response', '←', 'initialize', 'InitializeResult', 'left');
+          setMessagePos(serverCenter, msgY);
+          stepNum.textContent = '2';
+          narrationText.textContent = 'Server responds with InitializeResult';
+          narration.className = 'narration response-state';
+        },
+        animate: (done) => animateMessage(serverCenter, msgY, clientCenter, msgY, ANIMATION.MSG_DURATION, done),
+        after: () => {
+          serverBox.classList.remove('active');
+          clientBox.classList.add('active');
+        }
+      },
+      // Step 3: notifications/initialized Client → Server
+      {
+        setup: () => {
+          clientBox.classList.remove('active');
+          configMessage('notification', '→', 'initialized', 'notification', 'right');
+          setMessagePos(clientCenter, msgY);
+          stepNum.textContent = '3';
+          narrationText.textContent = 'Client sends initialized notification';
+          narration.className = 'narration notification-state';
+          clientBox.classList.add('active');
+        },
+        animate: (done) => animateMessage(clientCenter, msgY, serverCenter, msgY, ANIMATION.MSG_DURATION, done),
+        after: () => {
+          clientBox.classList.remove('active');
+          clientState.classList.add('active');
+          serverState.classList.add('active');
+        }
+      },
+      // Step 4: tools/list request
+      {
+        setup: () => {
+          configMessage('request', '→', 'tools/list', 'ListToolsRequest', 'right');
+          setMessagePos(clientCenter, msgY);
+          stepNum.textContent = '4';
+          narrationText.textContent = 'Client requests tool list';
+          narration.className = 'narration request-state';
+          clientBox.classList.add('active');
+        },
+        animate: (done) => animateMessage(clientCenter, msgY, serverCenter, msgY, ANIMATION.MSG_DURATION, done),
+        after: () => {
+          clientBox.classList.remove('active');
+          serverBox.classList.add('active');
+        }
+      },
+      // Step 5: tools/list response
+      {
+        setup: () => {
+          configMessage('response', '←', 'tools/list', 'ListToolsResult', 'left');
+          setMessagePos(serverCenter, msgY);
+          stepNum.textContent = '5';
+          narrationText.textContent = 'Server returns ListToolsResult';
+          narration.className = 'narration response-state';
+        },
+        animate: (done) => animateMessage(serverCenter, msgY, clientCenter, msgY, ANIMATION.MSG_DURATION, done),
+        after: () => {
+          serverBox.classList.remove('active');
+        }
+      },
+      // Step 6: prompts/list request
+      {
+        setup: () => {
+          configMessage('request', '→', 'prompts/list', 'ListPromptsRequest', 'right');
+          setMessagePos(clientCenter, msgY);
+          stepNum.textContent = '6';
+          narrationText.textContent = 'Client requests prompt list';
+          narration.className = 'narration request-state';
+          clientBox.classList.add('active');
+        },
+        animate: (done) => animateMessage(clientCenter, msgY, serverCenter, msgY, ANIMATION.MSG_DURATION, done),
+        after: () => {
+          clientBox.classList.remove('active');
+          serverBox.classList.add('active');
+        }
+      },
+      // Step 7: prompts/list response
+      {
+        setup: () => {
+          configMessage('response', '←', 'prompts/list', 'ListPromptsResult', 'left');
+          setMessagePos(serverCenter, msgY);
+          stepNum.textContent = '7';
+          narrationText.textContent = 'Server returns ListPromptsResult';
+          narration.className = 'narration response-state';
+        },
+        animate: (done) => animateMessage(serverCenter, msgY, clientCenter, msgY, ANIMATION.MSG_DURATION, done),
+        after: () => {
+          serverBox.classList.remove('active');
+        }
+      },
+      // Step 8: tools/call request
+      {
+        setup: () => {
+          configMessage('request', '→', 'tools/call', 'CallToolRequest', 'right');
+          setMessagePos(clientCenter, msgY);
+          stepNum.textContent = '8';
+          narrationText.textContent = 'Client calls a tool';
+          narration.className = 'narration request-state';
+          clientBox.classList.add('active');
+        },
+        animate: (done) => animateMessage(clientCenter, msgY, serverCenter, msgY, ANIMATION.MSG_DURATION, done),
+        after: () => {
+          clientBox.classList.remove('active');
+          serverBox.classList.add('active');
+          setStatus(serverStatus, 'processing', '');
+        }
+      },
+      // Step 9: Server sends sampling request BACK to client (server waits)
+      {
+        setup: () => {
+          configMessage('server-request', '←', 'sampling/createMessage', 'CreateMessageRequest', 'left');
+          setMessagePos(serverCenter, msgY);
+          stepNum.textContent = '9';
+          narrationText.textContent = 'Server needs LLM — sends sampling request to client';
+          narration.className = 'narration waiting-state';
+          serverBox.classList.remove('active');
+          serverBox.classList.add('waiting');
+          setStatus(serverStatus, 'WAITING', 'waiting');
+        },
+        animate: (done) => animateMessage(serverCenter, msgY, clientCenter, msgY, ANIMATION.MSG_DURATION, done),
+        after: () => {
+          clientBox.classList.add('active');
+        }
+      },
+      // Step 10: Client responds with sampling result
+      {
+        setup: () => {
+          configMessage('client-response', '→', 'sampling/createMessage', 'CreateMessageResult', 'right');
+          setMessagePos(clientCenter, msgY);
+          stepNum.textContent = '10';
+          narrationText.textContent = 'Client returns LLM response — server resumes';
+          narration.className = 'narration response-state';
+        },
+        animate: (done) => animateMessage(clientCenter, msgY, serverCenter, msgY, ANIMATION.MSG_DURATION, done),
+        after: () => {
+          clientBox.classList.remove('active');
+          serverBox.classList.remove('waiting');
+          serverBox.classList.add('active');
+          setStatus(serverStatus, 'processing', '');
+        }
+      },
+      // Step 11: tools/call response
+      {
+        setup: () => {
+          configMessage('response', '←', 'tools/call', 'CallToolResult', 'left');
+          setMessagePos(serverCenter, msgY);
+          stepNum.textContent = '11';
+          narrationText.textContent = 'Server completes tool call';
+          narration.className = 'narration response-state';
+        },
+        animate: (done) => animateMessage(serverCenter, msgY, clientCenter, msgY, ANIMATION.MSG_DURATION, done),
+        after: () => {
+          serverBox.classList.remove('active');
+          setStatus(serverStatus, '', '');
+        }
+      },
+      // Step 12: Pause before restart
+      {
+        setup: () => {
+          message.className = 'message';
+          stepNum.textContent = '✓';
+          narrationText.textContent = 'Connection complete — both sides know capabilities';
+          narration.className = 'narration success-state';
+        },
+        animate: (done) => setTimeout(done, ANIMATION.ERROR_PAUSE),
+        after: () => {}
+      }
+    ];
+    runStepSequence(steps);
+    scaleCanvas();
+  </script>
+</body>
+</html>

2026/mcp-connect/images/2026-02-03-mcp-server-stats.png ADDED Viewed

Git LFS Details

SHA256: c2b1a70674af22fb440cf8b6b36fbb6463f65ae8587908ca9feaa0ab10550517
Pointer size: 131 Bytes
Size of remote file: 229 kB

2026/mcp-connect/images/2026-02-03-mcpremote1.png ADDED Viewed

Git LFS Details

SHA256: ec92c2f68888e74aab259fe2983ec263fc1bb6f13502578569a137dfb39a0678
Pointer size: 131 Bytes
Size of remote file: 955 kB

2026/mcp-connect/images/2026-02-03-mcpremote2.png ADDED Viewed

Git LFS Details

SHA256: 54771193666fd7a3c5caf5a56395cda93094e4d7bab0180b1f7292c2278d2ab7
Pointer size: 131 Bytes
Size of remote file: 947 kB

2026/mcp-connect/images/2026-02-04-client-dataset.png ADDED Viewed

Git LFS Details

SHA256: 6f0f57aac37d6c46c1571f10e989fb21d6accd31fcc7fddc02d2cee3b22064bb
Pointer size: 131 Bytes
Size of remote file: 596 kB

2026/mcp-connect/images/2026-02-04-efficient.png ADDED Viewed

2026/mcp-connect/images/github-mark.svg ADDED Viewed

2026/mcp-connect/images/hf_logo.svg ADDED Viewed

2026/mcp-connect/images/huggingface-mark-logo.svg ADDED Viewed

2026/mcp-connect/images/intro-spaces.webm ADDED Viewed

	@@ -0,0 +1,3 @@

+version https://git-lfs.github.com/spec/v1
+oid sha256:f0e4d819a50bd539e7dda538f1cd05ba1c33dfa565552986c96feadd8fce93c5
+size 14977657

2026/mcp-connect/images/mcp-icon.svg ADDED Viewed

2026/mcp-connect/images/xcom-logo-black.png ADDED Viewed

Git LFS Details

SHA256: 391a3a86f40e253b584defa5f284c7402a2175a705ebb2b4b9460112fc92dc77
Pointer size: 131 Bytes
Size of remote file: 102 kB

2026/mcp-connect/presentation.html ADDED Viewed

The diff for this file is too large to render. See raw diff

index.html CHANGED Viewed

@@ -155,6 +155,22 @@
   <main>
     <h1>Conference Presentations</h1>
     <section>
       <h2>2025</h2>
       <ul class="conference-list">

   <main>
     <h1>Conference Presentations</h1>
+    <section>
+      <h2>2026</h2>
+      <ul class="conference-list">
+        <li class="conference">
+          <p class="conference-title">MCP Connect (February) <span class="tag">Feb 2026</span></p>
+          <div class="links">
+            <a href="https://lu.ma/mcpconnect" aria-label="Conference Site: MCP Connect">MCP Connect</a>
+            <a href="2026/mcp-connect/presentation.html">View presentation</a>
+          </div>
+          <div class="extras">
+            <p class="note">Talk covering MCP transport choices and trade-offs in Streamable HTTP, sessions and transport relationships, and analytics insights from the <a href="https://github.com/evalstate/hf-mcp-server">Hugging Face MCP Server</a> showing real-world client behavior at scale. Includes detailed experience report and data on session lengths, initialize:tool call ratios, and client patterns in production.</p>
+          </div>
+        </li>
+      </ul>
+    </section>
     <section>
       <h2>2025</h2>
       <ul class="conference-list">