OpenTelemetry Events Reference

{
  "event": "user.auth_succeeded",
  "timestamp": "2026-03-05T10:30:00Z",
  "attributes": {
    "provider": "github",
    "user_id": "user_abc123",
    "session_id": "sess_xyz789"
  }
}

{
  "event": "workspace.initialized",
  "timestamp": "2026-03-05T10:32:15Z",
  "attributes": {
    "roots_count": 2,
    "vcs_type": "git",
    "duration_ms": 145,
    "multi_root_enabled": true
  }
}

{
  "event": "task.tool_used",
  "timestamp": "2026-03-05T10:35:22Z",
  "attributes": {
    "task_id": "task_1234567890",
    "tool_name": "write_to_file",
    "success": true,
    "duration_ms": 125,
    "auto_approved": false,
    "model": "claude-sonnet-4",
    "provider": "anthropic"
  }
}

{
  "event": "ui.model_selected",
  "timestamp": "2026-03-05T11:20:00Z",
  "attributes": {
    "model": "claude-sonnet-4",
    "provider": "anthropic",
    "previous_model": "gpt-4o",
    "mode": "act"
  }
}

{
  "event": "hooks.execution",
  "timestamp": "2026-03-05T10:40:15Z",
  "attributes": {
    "hook_name": "preToolUse",
    "status": "completed",
    "duration_ms": 234,
    "task_id": "task_1234567890",
    "context_modified": false
  }
}

{
  "event": "worktree.created",
  "timestamp": "2026-03-05T14:22:00Z",
  "attributes": {
    "success": true,
    "branch_name_hash": "abc123",
    "duration_ms": 1250,
    "parent_branch": "main"
  }
}

{
  "event": "host.detected",
  "timestamp": "2026-03-05T09:00:00Z",
  "attributes": {
    "host_type": "vscode",
    "version": "1.95.0",
    "platform": "darwin"
  }
}

{
  "event": "cline.test.connection",
  "timestamp": "2026-03-05T15:30:00Z",
  "attributes": {
    "success": true,
    "exporter_type": "otlp",
    "endpoint": "https://api.datadoghq.com:4317",
    "protocol": "grpc"
  }
}

sequenceDiagram
    participant User
    participant Cline
    participant OTel

    User->>Cline: Start Task
    Cline->>OTel: task.created
    
    User->>Cline: Submit Message
    Cline->>OTel: task.conversation_turn (user)
    
    Cline->>Cline: Process with AI
    Cline->>OTel: task.tokens
    Cline->>OTel: task.conversation_turn (assistant)
    
    Cline->>Cline: Use Tool
    Cline->>OTel: task.tool_used
    
    User->>Cline: Provide Feedback
    Cline->>OTel: task.option_selected
    
    User->>Cline: Complete Task
    Cline->>OTel: task.completed

{
  "event": "task.tokens",
  "timestamp": "2026-03-05T10:35:30Z",
  "attributes": {
    "task_id": "task_1234567890",
    "tokens_in": 2500,
    "tokens_out": 850,
    "cached_tokens": 1200,
    "cost": 0.0043,
    "model": "claude-sonnet-4",
    "provider": "anthropic"
  }
}

SELECT attributes.tool_name, COUNT(*) as count
FROM otel_logs
WHERE event = 'task.tool_used'
  AND attributes.success = true
GROUP BY attributes.tool_name
ORDER BY count DESC
LIMIT 10

SELECT 
  attributes.model,
  AVG(attributes.duration_ms) as avg_duration_ms,
  COUNT(*) as task_count
FROM otel_logs
WHERE event = 'task.completed'
GROUP BY attributes.model

SELECT 
  attributes.provider,
  SUM(attributes.tokens_in) as total_tokens_in,
  SUM(attributes.tokens_out) as total_tokens_out,
  SUM(attributes.cost) as total_cost
FROM otel_logs
WHERE event = 'task.tokens'
  AND timestamp >= NOW() - INTERVAL '30 days'
GROUP BY attributes.provider

SELECT 
  attributes.tool_name,
  SUM(CASE WHEN attributes.auto_approved THEN 1 ELSE 0 END)::float / COUNT(*) as auto_approval_rate,
  COUNT(*) as total_uses
FROM otel_logs
WHERE event = 'task.tool_used'
GROUP BY attributes.tool_name
ORDER BY total_uses DESC

{
  "widgets": [
    {
      "definition": {
        "type": "timeseries",
        "requests": [
          {
            "q": "sum:cline.task.completed{*}.as_count()",
            "display_type": "bars"
          }
        ],
        "title": "Tasks Completed Over Time"
      }
    },
    {
      "definition": {
        "type": "query_value",
        "requests": [
          {
            "q": "sum:cline.task.tokens{*}",
            "aggregator": "sum"
          }
        ],
        "title": "Total Tokens Used"
      }
    }
  ]
}

{event="task.tool_used"} 
| json
| line_format "{{.attributes_tool_name}}: {{.attributes_success}}"

SELECT count(*) 
FROM Log 
WHERE event = 'task.completed' 
FACET attributes.model 
SINCE 1 day ago

interface OtelLogEvent {
  event: string              // Event name (e.g., "task.created")
  timestamp: string           // ISO 8601 timestamp
  attributes: {
    // Event-specific attributes
    [key: string]: string | number | boolean
  }
  resource: {
    service_name: "cline"
    service_version: string   // Extension version
    host_type: string         // vscode | jetbrains | cli
  }
}