MCP Tool Optimization Complete

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{
  "id": "3a24c477-4532-47bd-8c12-3d9fe853edd7",
  "type": "general",
  "status": "completed",
  "title": "MCP Tool Optimization Complete",
  "description": "Fixed konui_list_tasks to limit results and strip large context fields",
  "context": {
    "output": "<div style=\"background:#1e1e1e;color:#e0e0e0;padding:20px;border-radius:8px;font-family:'Segoe UI','Helvetica Neue',sans-serif;\">\n<h2 style=\"color:#4ade80;margin:0 0 16px 0;\">✓ MCP Tool Optimized</h2>\n\n<div style=\"background:#2d2d2d;padding:16px;border-radius:6px;margin-bottom:16px;\">\n<h3 style=\"color:#fff;margin:0 0 12px 0;\">Changes Made</h3>\n<pre style=\"background:#1e1e1e;padding:12px;border-radius:4px;overflow-x:auto;margin:0;line-height:1.6;\">\n<span style=\"color:#e5c07b;\">konui/mcp/server.ts</span>\n\n<span style=\"color:#98c379;\">1. Added limit parameter:</span>\n   <span style=\"color:#7f848e;\">- Default: 20 tasks</span>\n   <span style=\"color:#7f848e;\">- Max: 100 tasks</span>\n   <span style=\"color:#7f848e;\">- Sorted by most recent first</span>\n\n<span style=\"color:#98c379;\">2. Stripped large context fields:</span>\n   <span style=\"color:#7f848e;\">- KEPT: requestId, choices (small, useful)</span>\n   <span style=\"color:#f87171;\">- REMOVED: output, layout, data (huge HTML)</span>\n</pre>\n</div>\n\n<div style=\"background:#2d2d2d;padding:16px;border-radius:6px;margin-bottom:16px;\">\n<h3 style=\"color:#61afef;margin:0 0 12px 0;\">Before vs After</h3>\n<table style=\"width:100%;border-collapse:collapse;\">\n<tr style=\"border-bottom:1px solid #444;\">\n<th style=\"padding:8px;text-align:left;color:#9ca3af;\">Metric</th>\n<th style=\"padding:8px;text-align:right;color:#f87171;\">Before</th>\n<th style=\"padding:8px;text-align:right;color:#4ade80;\">After</th>\n</tr>\n<tr style=\"border-bottom:1px solid #333;\">\n<td style=\"padding:8px;\">Tasks returned</td>\n<td style=\"padding:8px;text-align:right;color:#f87171;\">ALL (~1000+)</td>\n<td style=\"padding:8px;text-align:right;color:#4ade80;\">20 (default)</td>\n</tr>\n<tr style=\"border-bottom:1px solid #333;\">\n<td style=\"padding:8px;\">Per-task size</td>\n<td style=\"padding:8px;text-align:right;color:#f87171;\">~5-50KB (with HTML)</td>\n<td style=\"padding:8px;text-align:right;color:#4ade80;\">~500 bytes</td>\n</tr>\n<tr>\n<td style=\"padding:8px;\">Total response</td>\n<td style=\"padding:8px;text-align:right;color:#f87171;\">9.3 MB</td>\n<td style=\"padding:8px;text-align:right;color:#4ade80;\">~10 KB</td>\n</tr>\n</table>\n</div>\n\n<div style=\"background:#2d2d2d;padding:16px;border-radius:6px;margin-bottom:16px;\">\n<h3 style=\"color:#e5c07b;margin:0 0 12px 0;\">Will This Speed Up Most Turns?</h3>\n<p style=\"margin:0 0 12px 0;line-height:1.6;\"><strong style=\"color:#fff;\">Short answer: Mostly no, but it prevents catastrophic slowdowns.</strong></p>\n<p style=\"margin:0 0 8px 0;line-height:1.6;color:#9ca3af;\">This fix addresses the specific case where <code style=\"color:#e5c07b;\">konui_list_tasks</code> returns massive data. Most turn latency comes from:</p>\n<ul style=\"margin:0;padding-left:20px;line-height:1.8;color:#9ca3af;\">\n<li><strong style=\"color:#fff;\">Claude spawn time</strong> (~0.5-2s) - Fixed by session reuse</li>\n<li><strong style=\"color:#fff;\">Claude thinking</strong> (1-30s) - The API call itself</li>\n<li><strong style=\"color:#fff;\">Tool execution</strong> - Reading files, searches, etc.</li>\n</ul>\n<p style=\"margin:12px 0 0 0;line-height:1.6;\">The MCP fix eliminates the <span style=\"color:#f87171;\">9.3MB response spike</span> that caused the error you saw, but it won't make normal turns faster.</p>\n</div>\n\n<div style=\"background:#2d2d2d;padding:16px;border-radius:6px;margin-bottom:16px;\">\n<h3 style=\"color:#c678dd;margin:0 0 12px 0;\">New API</h3>\n<pre style=\"background:#1e1e1e;padding:12px;border-radius:4px;overflow-x:auto;margin:0;\">\n<span style=\"color:#7f848e;\">// Old (dangerous):</span>\n<span style=\"color:#c678dd;\">konui_list_tasks</span>({ status: <span style=\"color:#98c379;\">\"completed\"</span> })  <span style=\"color:#f87171;\">// 9.3MB!</span>\n\n<span style=\"color:#7f848e;\">// New (safe):</span>\n<span style=\"color:#c678dd;\">konui_list_tasks</span>({ status: <span style=\"color:#98c379;\">\"completed\"</span> })  <span style=\"color:#4ade80;\">// 20 most recent, ~10KB</span>\n<span style=\"color:#c678dd;\">konui_list_tasks</span>({ status: <span style=\"color:#98c379;\">\"approved\"</span>, <span style=\"color:#e5c07b;\">limit</span>: <span style=\"color:#d19a66;\">5</span> })  <span style=\"color:#4ade80;\">// 5 most recent</span>\n</pre>\n</div>\n\n<div style=\"background:#2d2d2d;padding:16px;border-radius:6px;\">\n<h4 style=\"margin:0 0 8px 0;color:#fff;\">What's Next?</h4>\n<p style=\"color:#9ca3af;margin:0;\">The MCP server needs to restart for changes to take effect (requires Claude Code restart or reconnect).</p>\n</div>\n</div>",
    "choices": [
      {
        "label": "Test it now",
        "value": "Test the konui_list_tasks MCP tool to verify the fix works - call it with status=completed",
        "primary": true
      },
      {
        "label": "Focus on telemetry",
        "value": "Let's move on to testing the telemetry system we built earlier"
      },
      {
        "label": "Done for now",
        "value": "Good progress, let's wrap up"
      }
    ],
    "requestedAt": "2026-01-03T07:45:00Z",
    "requestId": "004b9df6-5552-486f-8459-5663d14a0918"
  },
  "createdBy": "claude",
  "createdAt": "2026-01-03T07:38:40.874Z",
  "updatedAt": "2026-01-03T07:38:41.026Z",
  "requestId": "004b9df6-5552-486f-8459-5663d14a0918",
  "scope": "vibetools",
  "tags": [
    "mcp",
    "performance",
    "kontasks"
  ],
  "targetUser": "claude"
}