Turn: Phase 2 Delivery Confirmation Implemented

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{
  "id": "c787c125-409b-438e-901a-5abf82a5be58",
  "type": "general",
  "status": "completed",
  "title": "Turn: Phase 2 Delivery Confirmation Implemented",
  "description": "Client-side ack_turn message protocol for reliable turn event delivery",
  "context": {
    "output": "<div style=\"background:#1e1e1e;color:#e0e0e0;padding:20px;border-radius:8px;font-family:'Consolas','Monaco',monospace;\"><h2 style=\"font-family:sans-serif;color:#fff;margin:0 0 16px 0;\">✅ Phase 2 Complete: Client-Side Delivery Confirmation</h2><div style=\"background:#22c55e22;border-left:4px solid #22c55e;padding:12px;margin-bottom:16px;\"><strong style=\"color:#22c55e;\">Commit:</strong> <code style=\"background:#2d2d2d;padding:2px 8px;border-radius:4px;\">459ba1d5</code></div><div style=\"background:#2d2d2d;padding:16px;border-radius:6px;margin-bottom:16px;\"><h3 style=\"color:#3b82f6;margin:0 0 12px 0;\">What Was Built</h3><p style=\"margin:0 0 16px 0;line-height:1.6;\">Implemented the <strong>ack_turn protocol</strong> for reliable turn event delivery. The server no longer marks turns as \"delivered\" when sending turn_end - instead, it waits for the client to confirm receipt.</p><div id=\"arch-diagram\" style=\"background:#1e1e1e;padding:16px;border-radius:8px;min-height:200px;\"><div style=\"color:#888;\">Loading diagram...</div></div><script>\n(function() {\n  const definition = `\n%%{init: {'theme': 'dark'}}%%\nsequenceDiagram\n    participant C as Browser\n    participant S as Konui Server\n    participant D as Disk Store\n\n    rect rgb(59, 130, 246, 0.2)\n    Note over C,D: Normal Turn Flow\n    C->>S: send_prompt\n    S->>D: startTurn()\n    loop Events\n        S->>D: appendEvent()\n        S->>C: event\n    end\n    S->>D: endTurn(status=completed)\n    S->>C: turn_end\n    C->>S: ack_turn (requestId)\n    S->>D: markDelivered()\n    end\n\n    rect rgb(239, 68, 68, 0.2)\n    Note over C,D: Disconnect Scenario\n    C->>S: send_prompt\n    S->>D: startTurn()\n    Note over C: Browser disconnects!\n    loop Events\n        S->>D: appendEvent()\n    end\n    S->>D: endTurn(status=completed)\n    Note over S: No connected client\n    Note over D: Turn remains undelivered\n    end\n\n    rect rgb(34, 197, 94, 0.2)\n    Note over C,D: Recovery on Reconnect\n    C->>S: reconnect\n    S->>D: getUndeliveredTurns()\n    D-->>S: [turn data]\n    S->>C: turn_start (isRecovery=true)\n    S->>C: [replayed events]\n    S->>C: turn_end (isRecovery=true)\n    C->>S: ack_turn (requestId)\n    S->>D: markDelivered()\n    end\n`;\n  window.renderMermaidDiagram('arch-diagram', definition);\n})();\n</script></div><div style=\"background:#2d2d2d;padding:16px;border-radius:6px;margin-bottom:16px;\"><h3 style=\"color:#22c55e;margin:0 0 12px 0;\">Changes Made</h3><table style=\"width:100%;border-collapse:collapse;\"><tr style=\"border-bottom:1px solid #4b5563;\"><th style=\"text-align:left;padding:8px;color:#9ca3af;\">File</th><th style=\"text-align:left;padding:8px;color:#9ca3af;\">Change</th></tr><tr style=\"border-bottom:1px solid #4b5563;\"><td style=\"padding:8px;\"><code>console-websocket.ts</code></td><td style=\"padding:8px;\">Added <code>ack_turn</code> message type and <code>handleAckTurn()</code> method</td></tr><tr style=\"border-bottom:1px solid #4b5563;\"><td style=\"padding:8px;\"><code>console-websocket.ts</code></td><td style=\"padding:8px;\">Removed immediate <code>markDelivered()</code> calls from <code>endTurn()</code> and <code>replayUndeliveredTurns()</code></td></tr><tr><td style=\"padding:8px;\"><code>console-websocket-client.ts</code></td><td style=\"padding:8px;\">Added <code>sendAckTurn()</code> function, called on every <code>turn_end</code> message</td></tr></table></div><div style=\"background:#2d2d2d;padding:16px;border-radius:6px;margin-bottom:16px;\"><h3 style=\"color:#f59e0b;margin:0 0 12px 0;\">The Protocol</h3><pre style=\"background:#1e1e1e;padding:12px;border-radius:6px;overflow-x:auto;line-height:1.8;\"><span style=\"color:#7f848e;\">// Server receives from client:</span>\n{\n  type: <span style=\"color:#98c379;\">\"ack_turn\"</span>,\n  data: {\n    requestId: <span style=\"color:#98c379;\">\"uuid-of-turn\"</span>,\n    isRecovery: <span style=\"color:#e5c07b;\">false</span>  <span style=\"color:#7f848e;\">// true if replayed from disk</span>\n  }\n}\n\n<span style=\"color:#7f848e;\">// Server action on receipt:</span>\nawait turnEventStore.<span style=\"color:#61afef;\">markDelivered</span>(username, requestId);</pre></div><div style=\"background:#2d2d2d;padding:16px;border-radius:6px;margin-bottom:16px;\"><h3 style=\"color:#8b5cf6;margin:0 0 12px 0;\">Edge Cases Handled</h3><ul style=\"margin:0;padding-left:20px;line-height:2;\"><li><strong>Tab closes after turn_end sent</strong> → Turn not marked delivered → Replayed on next session</li><li><strong>Network drops mid-message</strong> → Ack never received → Turn stays recoverable</li><li><strong>Recovery from disk</strong> → Same ack flow → Prevents duplicate replays</li><li><strong>Empty requestId in turn_end</strong> → No ack sent (stopped turns)</li></ul></div><div style=\"background:#2d2d2d;padding:16px;border-radius:6px;\"><h4 style=\"margin:0 0 8px 0;color:#fff;\">What's Next?</h4><p style=\"color:#9ca3af;margin:0;\">Remaining reliability improvements:</p></div></div>",
    "requestedAt": "2026-01-08T09:10:00.000Z",
    "requestId": "fa0a68e6-b83f-4640-abee-c6ff368ef4aa",
    "commitSha": "459ba1d5",
    "choices": [
      {
        "label": "Restart konui",
        "value": "Restart konui to test the Phase 2 delivery confirmation changes",
        "primary": true
      },
      {
        "label": "Implement Phase 3",
        "value": "Implement Phase 3: State Machine Fix for better handling of reconnect with completed turn"
      },
      {
        "label": "Test recovery",
        "value": "Walk me through testing the disconnect/reconnect recovery flow to verify Phase 2 works correctly"
      },
      {
        "label": "View the diff",
        "value": "Show me the full diff of changes in commit 459ba1d5"
      }
    ],
    "turnTiming": {
      "totalMs": 291740,
      "ttfeMs": 157,
      "thinkingMs": 291577,
      "toolExecutionMs": 0,
      "toolCallCount": 0,
      "thinkingPct": 100,
      "toolsPct": 0,
      "ttfePct": 0
    }
  },
  "createdBy": "claude",
  "createdAt": "2026-01-08T09:07:43.907Z",
  "updatedAt": "2026-01-08T09:07:49.228Z",
  "requestId": "fa0a68e6-b83f-4640-abee-c6ff368ef4aa",
  "scope": "vibetools",
  "tags": [
    "websocket",
    "console",
    "recovery",
    "architecture"
  ],
  "targetUser": "claude"
}