Swimlane Visualization

MANDATORY: docs-management Delegation

Documentation Verification: This skill references Claude Code internal types (event types, hook events) that may change between releases. Before relying on hardcoded values, invoke the hook-management skill which delegates to docs-management for authoritative documentation.

What's Static (design decisions):

• UI patterns (lane layout, card design, status indicators)
• Component specifications (Vue/React templates)
• WebSocket integration patterns

What's Dynamic (verify via docs-management):

• Event type names (PreToolUse, PostToolUse, TextBlock, etc.)
• Hook event payloads and structure
• Claude Code internal APIs

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Design swimlane UI patterns for visualizing AI Developer Workflow execution in real-time.

When to Use

• Building ADW observability dashboards
• Monitoring agent workflow progress
• Creating real-time status displays
• Designing event inspection interfaces
• Implementing workflow debugging tools

Prerequisites

• Understanding of @websocket-architecture.md for real-time updates
• Familiarity with @hook-event-patterns.md for event types
• Frontend development capabilities (Vue, React, etc.)

SDK Requirement

Implementation Note: Swimlane visualization requires frontend development. This skill provides UI specifications and component patterns.

Swimlane Layout

Basic Structure

┌─────────────────────────────────────────────────────────────────┐
│ ADW: a1b2c3d4 - Feature: Add rate limiting                      │
├────────────┬────────────┬────────────┬────────────┬─────────────┤
│    Plan    │   Build    │   Review   │    Fix     │   Status    │
├────────────┼────────────┼────────────┼────────────┼─────────────┤
│ ✅ Complete │ ⚡ Active  │ ○ Pending  │ ○ Pending  │ ● Running   │
│            │            │            │            │             │
│ 💬 Created │ 🛠️ Write   │            │            │ Cost: $0.42 │
│    spec    │   auth.py  │            │            │             │
│            │ 🛠️ Write   │            │            │ Tokens: 12K │
│            │   tests.py │            │            │             │
│            │ 🧠 Thinking│            │            │ Duration:   │
│            │   ...      │            │            │   45s       │
└────────────┴────────────┴────────────┴────────────┴─────────────┘

Lane States

State	Icon	Color	Meaning
Pending	○	Gray	Not started
Active	⚡	Blue	Currently executing
Complete	✅	Green	Successfully finished
Failed	❌	Red	Error occurred

Event Card Design

Event Card Structure

┌─────────────────────────────────┐
│ 🛠️ ToolUseBlock                 │
├─────────────────────────────────┤
│ Write: src/auth/middleware.py   │
│                                 │
│ "Implementing JWT validation    │
│  middleware for API routes"     │
├─────────────────────────────────┤
│ 10:32:15 | 45ms                 │
└─────────────────────────────────┘

Event Type Icons

Documentation Verification: Event types (TextBlock, ToolUseBlock, PreToolUse, PostToolUse, etc.) are Claude Code internal types. For authoritative current types, verify via hook-management skill → docs-management.

Event Type	Icon	Card Style
TextBlock	💬	Blue border
ToolUseBlock	🛠️	Orange border
ThinkingBlock	🧠	Purple border
PreToolUse	🪝	Light gray
PostToolUse	🪝	Light gray
StepStart	⚙️	Green accent
StepEnd	⚙️	Green accent

Component Specifications

Lane Component

<template>
  <div class="lane" :class="{ active: isActive }">
    <div class="lane-header">
      <span class="lane-icon">{{ stateIcon }}</span>
      <span class="lane-name">{{ step.name }}</span>
    </div>
    <div class="lane-content">
      <EventCard
        v-for="event in events"
        :key="event.id"
        :event="event"
        @click="$emit('select', event)"
      />
    </div>
  </div>
</template>

Event Card Component

<template>
  <div class="event-card" :class="eventTypeClass">
    <div class="event-header">
      <span class="event-icon">{{ typeIcon }}</span>
      <span class="event-type">{{ event.event_type }}</span>
    </div>
    <div class="event-body">
      <p class="event-summary">{{ event.summary }}</p>
    </div>
    <div class="event-footer">
      <span class="event-time">{{ formattedTime }}</span>
      <span class="event-duration" v-if="event.duration_ms">
        {{ event.duration_ms }}ms
      </span>
    </div>
  </div>
</template>

Status Panel Component

<template>
  <div class="status-panel">
    <div class="status-indicator" :class="overallStatus">
      <span class="status-dot"></span>
      <span class="status-text">{{ statusText }}</span>
    </div>
    <div class="metrics">
      <div class="metric">
        <span class="metric-label">Cost</span>
        <span class="metric-value">${{ totalCost.toFixed(2) }}</span>
      </div>
      <div class="metric">
        <span class="metric-label">Tokens</span>
        <span class="metric-value">{{ formatTokens(totalTokens) }}</span>
      </div>
      <div class="metric">
        <span class="metric-label">Duration</span>
        <span class="metric-value">{{ formatDuration(totalDuration) }}</span>
      </div>
    </div>
  </div>
</template>

Real-Time Update Pattern

WebSocket Integration

class SwimlaneLive {
  private ws: ADWWebSocket;
  private lanes: Map<string, Lane> = new Map();

  connect(adwId: string) {
    this.ws = new ADWWebSocket();
    this.ws.connect();
    this.ws.subscribe(adwId, this.handleEvent.bind(this));
  }

  handleEvent(event: ADWEvent) {
    const lane = this.lanes.get(event.step);
    if (lane) {
      lane.addEvent(event);
      this.updateLaneState(event.step);
    }
  }

  updateLaneState(step: string) {
    // Update lane visual state based on latest event
  }
}

Event Buffering

class EventBuffer {
  private buffer: ADWEvent[] = [];
  private flushInterval = 100; // ms

  add(event: ADWEvent) {
    this.buffer.push(event);
  }

  flush(): ADWEvent[] {
    const events = [...this.buffer];
    this.buffer = [];
    return events;
  }
}

Filtering and Navigation

Filter Controls

┌─────────────────────────────────────────────────────────────────┐
│ Filters:                                                         │
│ [Step: All ▼] [Type: All ▼] [Search: _____________] [🔄 Live]  │
└─────────────────────────────────────────────────────────────────┘

Filter Implementation

interface SwimlineFilters {
  step: string | null;
  eventTypes: string[];
  searchQuery: string;
  liveMode: boolean;
}

function filterEvents(events: ADWEvent[], filters: SwimlineFilters) {
  return events.filter(event => {
    if (filters.step && event.step !== filters.step) return false;
    if (filters.eventTypes.length && !filters.eventTypes.includes(event.event_type)) return false;
    if (filters.searchQuery && !event.summary.includes(filters.searchQuery)) return false;
    return true;
  });
}

Event Detail Panel

Expanded Event View

┌─────────────────────────────────────────────────────────────────┐
│ Event Details                                              [X]  │
├─────────────────────────────────────────────────────────────────┤
│ Type: ToolUseBlock                                              │
│ Step: build                                                     │
│ Time: 2026-01-01 10:32:15 UTC                                  │
│ Duration: 45ms                                                  │
├─────────────────────────────────────────────────────────────────┤
│ Tool: Write                                                     │
│ Path: src/auth/middleware.py                                    │
├─────────────────────────────────────────────────────────────────┤
│ Summary:                                                        │
│ "Implementing JWT validation middleware for API routes"        │
├─────────────────────────────────────────────────────────────────┤
│ Raw Payload:                                                    │
│ {                                                               │
│   "tool_name": "Write",                                        │
│   "file_path": "src/auth/middleware.py",                       │
│   "content": "..."                                             │
│ }                                                               │
└─────────────────────────────────────────────────────────────────┘

Design Checklist

• Lane layout defined for all steps
• Event card components designed
• Status indicators specified
• Real-time WebSocket integration
• Event type icons and colors
• Filter controls designed
• Event detail panel specified
• Responsive layout considered
• Loading and error states
• Accessibility requirements

Output Format

## Swimlane Visualization Design

### Layout Specification

```text
[ASCII layout diagram]

Lane States

State	Visual	Trigger
[state]	[description]	[when applied]

Event Cards

[Card specifications per event type]

Components

Lane Component: [Props, events, slots]

Event Card Component: [Props, events, styling]

Status Panel: [Metrics displayed]

Real-Time Updates

[WebSocket integration pattern]

Filtering

[Filter controls and logic]

## Anti-Patterns

| Anti-Pattern | Problem | Solution |
| --- | --- | --- |
| No live updates | Stale display | WebSocket streaming |
| Overwhelming events | UI unusable | Filtering and pagination |
| No event details | Can't debug | Detail panel on click |
| Missing status | Unknown state | Status indicators |
| Sync rendering | UI freezes | Buffered updates |

## Cross-References

- @websocket-architecture.md - Real-time streaming
- @hook-event-patterns.md - Event types
- @multi-agent-observability skill - Metrics patterns
- @production-patterns.md - Backend integration

## Version History

- **v1.0.0** (2026-01-01): Initial release (Lesson 14)

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## Last Updated

**Date:** 2026-01-01
**Model:** claude-opus-4-5-20251101