feat: Task #109 — MCP Logging in Trinity Console (v2.3.0)

Arbiter changes:
- POST /api/internal/mcp/log endpoint in api.js
- MCP Logs admin route (/admin/mcp-logs) with filters, stats, pagination
- EJS view with expandable detail rows, server color badges
- Sidebar link under System group

Trinity Core v2.3.0:
- logToArbiter() function POSTs to Arbiter after every command
- Both MCP (Claude.ai) and REST (/exec) paths log with execution timing
- Async logging — doesn't block command response

Database:
- mcp_logs table created on Command Center (indexes on server, time, success)

Architecture:
  Trinity Core → command → response + async POST → Arbiter → PostgreSQL → Trinity Console

Chronicler #78 | firefrost-services

services/arbiter-3.0/src/routes/admin/index.js

@@ -17,6 +17,7 @@ const systemRouter = require('./system');
 const socialRouter = require('./social');
 const infrastructureRouter = require('./infrastructure');
 const aboutRouter = require('./about');
+const mcpLogsRouter = require('./mcp-logs');
 
 router.use(requireTrinityAccess);
 
@@ -121,5 +122,6 @@ router.use('/system', systemRouter);
 router.use('/social', socialRouter);
 router.use('/infrastructure', infrastructureRouter);
 router.use('/about', aboutRouter);
+router.use('/mcp-logs', mcpLogsRouter);
 
 module.exports = router;

services/arbiter-3.0/src/routes/admin/mcp-logs.js

@@ -0,0 +1,98 @@
+const express = require('express');
+const router = express.Router();
+const db = require('../../database');
+
+/**
+ * MCP Logs Module — Trinity Console
+ * 
+ * View and filter command execution logs from Trinity Core.
+ * 
+ * GET /admin/mcp-logs — Main logs page with filters
+ * 
+ * Chronicler #78 | April 11, 2026
+ */
+
+const SERVERS = [
+  'command-center', 'tx1-dallas', 'nc1-charlotte',
+  'panel-vps', 'dev-panel', 'wiki-vps', 'services-vps', 'trinity-core'
+];
+
+router.get('/', async (req, res) => {
+  try {
+    const { server, success, limit = 50, offset = 0 } = req.query;
+
+    // Build filtered query
+    let where = 'WHERE 1=1';
+    const params = [];
+    let p = 0;
+
+    if (server) {
+      p++;
+      where += ` AND server = $${p}`;
+      params.push(server);
+    }
+
+    if (success !== undefined && success !== '') {
+      p++;
+      where += ` AND success = $${p}`;
+      params.push(success === 'true');
+    }
+
+    // Get logs
+    const logsResult = await db.query(
+      `SELECT * FROM mcp_logs ${where} ORDER BY executed_at DESC LIMIT $${p + 1} OFFSET $${p + 2}`,
+      [...params, parseInt(limit), parseInt(offset)]
+    );
+
+    // Get total count
+    const countResult = await db.query(
+      `SELECT COUNT(*) FROM mcp_logs ${where}`,
+      params
+    );
+    const total = parseInt(countResult.rows[0].count);
+
+    // Get stats
+    const statsResult = await db.query(`
+      SELECT
+        COUNT(*) as total,
+        COUNT(*) FILTER (WHERE success = true) as success_count,
+        COUNT(*) FILTER (WHERE success = false) as fail_count,
+        COALESCE(ROUND(AVG(execution_time_ms)), 0) as avg_time
+      FROM mcp_logs
+    `);
+
+    const stats = statsResult.rows[0];
+
+    res.render('admin/mcp-logs/index', {
+      title: 'MCP Logs',
+      currentPath: '/mcp-logs',
+      logs: logsResult.rows,
+      total,
+      limit: parseInt(limit),
+      offset: parseInt(offset),
+      query: req.query,
+      stats,
+      servers: SERVERS,
+      adminUser: req.user,
+      layout: 'layout'
+    });
+  } catch (err) {
+    console.error('[MCP Logs] Route error:', err);
+    res.render('admin/mcp-logs/index', {
+      title: 'MCP Logs',
+      currentPath: '/mcp-logs',
+      logs: [],
+      total: 0,
+      limit: 50,
+      offset: 0,
+      query: {},
+      stats: { total: 0, success_count: 0, fail_count: 0, avg_time: 0 },
+      servers: SERVERS,
+      error: err.message,
+      adminUser: req.user,
+      layout: 'layout'
+    });
+  }
+});
+
+module.exports = router;

services/arbiter-3.0/src/routes/api.js

@@ -368,4 +368,31 @@ router.get('/social/digest', async (req, res) => {
     }
 });
 
+// =============================================================================
+// POST /api/internal/mcp/log
+// Log a command execution from Trinity Core
+// =============================================================================
+
+router.post('/mcp/log', async (req, res) => {
+    try {
+        const { server, command, success, stdout, stderr, error, execution_time_ms } = req.body;
+
+        if (!server || !command || success === undefined) {
+            return res.status(400).json({ error: 'Missing required fields: server, command, success' });
+        }
+
+        const result = await db.query(
+            `INSERT INTO mcp_logs (server, command, success, stdout, stderr, error, execution_time_ms)
+             VALUES ($1, $2, $3, $4, $5, $6, $7)
+             RETURNING id`,
+            [server, command, success, stdout || '', stderr || '', error || null, execution_time_ms || null]
+        );
+
+        res.json({ success: true, id: result.rows[0].id });
+    } catch (err) {
+        console.error('❌ [MCP Log] Error:', err);
+        res.status(500).json({ error: 'Failed to log command' });
+    }
+});
+
 module.exports = router;

services/arbiter-3.0/src/views/admin/mcp-logs/index.ejs

@@ -0,0 +1,161 @@
+<!-- MCP Logs Module — Trinity Console -->
+<!-- Chronicler #78 | April 11, 2026 -->
+
+<!-- Stats Cards -->
+<div class="grid grid-cols-1 md:grid-cols-4 gap-4 mb-6">
+  <div class="bg-white dark:bg-darkcard rounded-lg shadow-sm border border-gray-200 dark:border-gray-700 p-4">
+    <div class="text-sm text-gray-500 dark:text-gray-400">Total Commands</div>
+    <div class="text-2xl font-bold mt-1"><%= stats.total %></div>
+  </div>
+  <div class="bg-white dark:bg-darkcard rounded-lg shadow-sm border border-gray-200 dark:border-gray-700 p-4">
+    <div class="text-sm text-gray-500 dark:text-gray-400">Successful</div>
+    <div class="text-2xl font-bold mt-1 text-green-500"><%= stats.success_count %></div>
+  </div>
+  <div class="bg-white dark:bg-darkcard rounded-lg shadow-sm border border-gray-200 dark:border-gray-700 p-4">
+    <div class="text-sm text-gray-500 dark:text-gray-400">Failed</div>
+    <div class="text-2xl font-bold mt-1 text-red-500"><%= stats.fail_count %></div>
+  </div>
+  <div class="bg-white dark:bg-darkcard rounded-lg shadow-sm border border-gray-200 dark:border-gray-700 p-4">
+    <div class="text-sm text-gray-500 dark:text-gray-400">Avg Execution</div>
+    <div class="text-2xl font-bold mt-1 text-frost"><%= stats.avg_time %>ms</div>
+  </div>
+</div>
+
+<!-- Filters -->
+<div class="bg-white dark:bg-darkcard rounded-lg shadow-sm border border-gray-200 dark:border-gray-700 p-4 mb-6">
+  <form method="GET" class="flex flex-wrap gap-4 items-end">
+    <div>
+      <label class="block text-xs text-gray-500 dark:text-gray-400 mb-1">Server</label>
+      <select name="server" class="bg-gray-100 dark:bg-gray-800 border border-gray-300 dark:border-gray-600 rounded-md px-3 py-2 text-sm">
+        <option value="">All Servers</option>
+        <% servers.forEach(s => { %>
+          <option value="<%= s %>" <%= query.server === s ? 'selected' : '' %>><%= s %></option>
+        <% }); %>
+      </select>
+    </div>
+    <div>
+      <label class="block text-xs text-gray-500 dark:text-gray-400 mb-1">Status</label>
+      <select name="success" class="bg-gray-100 dark:bg-gray-800 border border-gray-300 dark:border-gray-600 rounded-md px-3 py-2 text-sm">
+        <option value="">All</option>
+        <option value="true" <%= query.success === 'true' ? 'selected' : '' %>>Success</option>
+        <option value="false" <%= query.success === 'false' ? 'selected' : '' %>>Failed</option>
+      </select>
+    </div>
+    <div class="flex gap-2">
+      <button type="submit" class="bg-frost text-white px-4 py-2 rounded-md text-sm hover:opacity-90 transition">Filter</button>
+      <a href="/admin/mcp-logs" class="bg-gray-200 dark:bg-gray-700 text-gray-700 dark:text-gray-300 px-4 py-2 rounded-md text-sm hover:opacity-90 transition">Reset</a>
+    </div>
+  </form>
+</div>
+
+<!-- Logs Table -->
+<div class="bg-white dark:bg-darkcard rounded-lg shadow-sm border border-gray-200 dark:border-gray-700 overflow-hidden">
+  <table class="w-full">
+    <thead>
+      <tr class="border-b border-gray-200 dark:border-gray-700 text-left text-xs text-gray-500 dark:text-gray-400 uppercase tracking-wider">
+        <th class="px-4 py-3">Time</th>
+        <th class="px-4 py-3">Server</th>
+        <th class="px-4 py-3">Command</th>
+        <th class="px-4 py-3">Status</th>
+        <th class="px-4 py-3">Duration</th>
+        <th class="px-4 py-3"></th>
+      </tr>
+    </thead>
+    <tbody class="divide-y divide-gray-200 dark:divide-gray-700">
+      <% if (logs.length === 0) { %>
+        <tr>
+          <td colspan="6" class="px-4 py-8 text-center text-gray-500 dark:text-gray-400">
+            <% if (stats.total == 0) { %>
+              No commands logged yet. Commands executed via Trinity Core will appear here.
+            <% } else { %>
+              No logs match your filters.
+            <% } %>
+          </td>
+        </tr>
+      <% } %>
+      <% logs.forEach(log => {
+        const time = new Date(log.executed_at);
+        const timeStr = time.toLocaleString('en-US', { month:'short', day:'numeric', hour:'numeric', minute:'2-digit', second:'2-digit', hour12:true });
+        const cmdShort = log.command.length > 60 ? log.command.substring(0, 60) + '...' : log.command;
+      %>
+        <tr class="hover:bg-gray-50 dark:hover:bg-gray-800/50 transition cursor-pointer" onclick="toggleDetail('<%= log.id %>')">
+          <td class="px-4 py-3 text-xs text-gray-500 dark:text-gray-400 whitespace-nowrap"><%= timeStr %></td>
+          <td class="px-4 py-3">
+            <span class="inline-block px-2 py-0.5 text-xs rounded-full
+              <% if (log.server === 'tx1-dallas') { %>bg-fire/20 text-fire
+              <% } else if (log.server === 'nc1-charlotte') { %>bg-frost/20 text-frost
+              <% } else if (log.server === 'command-center' || log.server === 'trinity-core') { %>bg-universal/20 text-universal
+              <% } else { %>bg-gray-200 dark:bg-gray-700 text-gray-600 dark:text-gray-300
+              <% } %>
+            "><%= log.server %></span>
+          </td>
+          <td class="px-4 py-3"><code class="text-xs text-gray-300"><%= cmdShort %></code></td>
+          <td class="px-4 py-3">
+            <% if (log.success) { %>
+              <span class="inline-block px-2 py-0.5 text-xs rounded-full bg-green-500/20 text-green-500">✓ OK</span>
+            <% } else { %>
+              <span class="inline-block px-2 py-0.5 text-xs rounded-full bg-red-500/20 text-red-500">✗ Fail</span>
+            <% } %>
+          </td>
+          <td class="px-4 py-3 text-xs text-gray-500 dark:text-gray-400"><%= log.execution_time_ms || '—' %>ms</td>
+          <td class="px-4 py-3 text-xs text-gray-400">▼</td>
+        </tr>
+        <!-- Expandable detail row -->
+        <tr id="detail-<%= log.id %>" style="display:none;" class="bg-gray-50 dark:bg-gray-800/30">
+          <td colspan="6" class="px-4 py-4">
+            <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
+              <div>
+                <div class="text-xs text-gray-500 dark:text-gray-400 mb-1 font-semibold">Full Command</div>
+                <pre class="bg-gray-900 text-green-400 text-xs p-3 rounded-md overflow-x-auto max-h-32"><%= log.command %></pre>
+              </div>
+              <div>
+                <div class="text-xs text-gray-500 dark:text-gray-400 mb-1 font-semibold">Output</div>
+                <pre class="bg-gray-900 text-gray-300 text-xs p-3 rounded-md overflow-x-auto max-h-32"><%= log.stdout || '(no output)' %></pre>
+              </div>
+              <% if (log.stderr) { %>
+              <div>
+                <div class="text-xs text-yellow-500 mb-1 font-semibold">STDERR</div>
+                <pre class="bg-yellow-900/20 text-yellow-300 text-xs p-3 rounded-md overflow-x-auto max-h-32"><%= log.stderr %></pre>
+              </div>
+              <% } %>
+              <% if (log.error) { %>
+              <div>
+                <div class="text-xs text-red-500 mb-1 font-semibold">Error</div>
+                <pre class="bg-red-900/20 text-red-300 text-xs p-3 rounded-md overflow-x-auto max-h-32"><%= log.error %></pre>
+              </div>
+              <% } %>
+            </div>
+          </td>
+        </tr>
+      <% }); %>
+    </tbody>
+  </table>
+</div>
+
+<!-- Pagination -->
+<% if (total > limit) { %>
+<div class="flex justify-center mt-6 gap-2">
+  <% const totalPages = Math.ceil(total / limit); %>
+  <% const currentPage = Math.floor(offset / limit) + 1; %>
+  <% for (let i = 1; i <= totalPages && i <= 10; i++) {
+    const pageOffset = (i - 1) * limit;
+    const params = new URLSearchParams({...query, offset: pageOffset});
+    params.delete('offset');
+    if (pageOffset > 0) params.set('offset', pageOffset);
+  %>
+    <a href="/admin/mcp-logs?<%= params.toString() %>"
+       class="px-3 py-1 rounded-md text-sm <%= currentPage === i ? 'bg-frost text-white' : 'bg-gray-200 dark:bg-gray-700 text-gray-600 dark:text-gray-300 hover:bg-gray-300 dark:hover:bg-gray-600' %> transition">
+      <%= i %>
+    </a>
+  <% } %>
+</div>
+<% } %>
+
+<script>
+function toggleDetail(id) {
+  const row = document.getElementById('detail-' + id);
+  if (row) {
+    row.style.display = row.style.display === 'none' ? '' : 'none';
+  }
+}
+</script>

services/arbiter-3.0/src/views/layout.ejs

@@ -118,6 +118,9 @@
                 <a href="/admin/roles" class="block px-4 py-2 rounded-md <%= currentPath.startsWith('/roles') ? 'bg-gray-200 dark:bg-gray-700' : 'hover:bg-gray-100 dark:hover:bg-gray-800' %>">
                     🔍 Role Audit
                 </a>
+                <a href="/admin/mcp-logs" class="block px-4 py-2 rounded-md <%= currentPath.startsWith('/mcp-logs') ? 'bg-gray-200 dark:bg-gray-700' : 'hover:bg-gray-100 dark:hover:bg-gray-800' %>">
+                    🖥️ MCP Logs
+                </a>
             </nav>
             <div class="p-4 border-t border-gray-200 dark:border-gray-700">
                 <!-- User Info -->

services/trinity-core/index.js

@@ -10,6 +10,8 @@ const API_TOKEN = 'FFG-Trinity-2026-Core-Access';
 const LOG_FILE = '/home/claude_executor/mcp-server/command.log';
 const PORT = 3000;
 const BASE_URL = 'https://mcp.firefrostgaming.com';
+const ARBITER_LOG_URL = 'https://discord-bot.firefrostgaming.com/api/internal/mcp/log';
+const ARBITER_TOKEN = '6fYF1akCRW6pM2F8n3S3RxeIod4YgRniUJNEQurvBP4=';
 
 const SERVERS = {
   'command-center': { host: '63.143.34.217', user: 'root' },
@@ -28,6 +30,21 @@ function log(msg) {
   console.log(line.trim());
 }
 
+async function logToArbiter(data) {
+  try {
+    await fetch(ARBITER_LOG_URL, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        'Authorization': `Bearer ${ARBITER_TOKEN}`
+      },
+      body: JSON.stringify(data)
+    });
+  } catch (err) {
+    log(`Arbiter log failed: ${err.message}`);
+  }
+}
+
 const app = express();
 app.use(cors({ origin: '*', credentials: true }));
 app.use(express.json());
@@ -119,9 +136,12 @@ function setupToolHandlers(mcpServer) {
       const { server, command } = request.params.arguments;
       if (!SERVERS[server]) return { content: [{ type: "text", text: `Unknown server ${server}` }], isError: true };
       const target = SERVERS[server];
+      const startTime = Date.now();
       const result = target.local
         ? await executeLocal(command)
         : await executeSSH(server, command);
+      const executionTime = Date.now() - startTime;
+      logToArbiter({ server, command, success: result.success, stdout: result.stdout, stderr: result.stderr, error: result.error, execution_time_ms: executionTime });
       let output = result.stdout || '(no output)';
       if (result.stderr) output += `\nSTDERR: ${result.stderr}`;
       return { content: [{ type: "text", text: output }], isError: !result.success };
@@ -147,10 +167,13 @@ app.post('/exec', auth, async (req, res) => {
     return res.status(400).json({ error: `Unknown server: ${server}` });
   }
   const target = SERVERS[server];
+  const startTime = Date.now();
   const result = target.local
     ? await executeLocal(command)
     : await executeSSH(server, command);
-  log(`REST /exec [${server}] -> ${result.success ? 'OK' : 'FAIL'}`);
+  const executionTime = Date.now() - startTime;
+  log(`REST /exec [${server}] -> ${result.success ? 'OK' : 'FAIL'} (${executionTime}ms)`);
+  logToArbiter({ server, command, success: result.success, stdout: result.stdout, stderr: result.stderr, error: result.error, execution_time_ms: executionTime });
   res.json({
     success: result.success,
     output: result.stdout || '',
@@ -164,7 +187,7 @@ app.post('/exec', auth, async (req, res) => {
 app.get('/mcp', auth, async (req, res) => {
   log(`SSE connection from ${req.ip}`);
 
-  const mcpServer = new Server({ name: "trinity-core", version: "2.2.0" }, { capabilities: { tools: {} } });
+  const mcpServer = new Server({ name: "trinity-core", version: "2.3.0" }, { capabilities: { tools: {} } });
   setupToolHandlers(mcpServer);
 
   mcpServer.onmessage = (msg) => log(`SERVER MSG: ${JSON.stringify(msg)}`);
@@ -201,4 +224,4 @@ app.post('/mcp/messages', auth, async (req, res) => {
   }
 });
 
-app.listen(PORT, () => log(`Trinity Core MCP v2.2.0 started on port ${PORT}`));
+app.listen(PORT, () => log(`Trinity Core MCP v2.3.0 started on port ${PORT}`));

services/trinity-core/package.json

@@ -1,6 +1,6 @@
 {
   "name": "trinity-core",
-  "version": "2.2.0",
+  "version": "2.3.0",
   "type": "module",
   "main": "index.js",
   "dependencies": {