Events

{
  agentId: string             // stable agent identifier (CUID or label)
  timestamp: string           // agent-supplied ISO timestamp
  type: EventType             // see above
  reasoning?: string          // human-readable description
  toolExecuted?: string       // name of the tool, if applicable
  toolsConsidered?: string[]  // alternatives the agent rejected
  transaction?: string        // Solana tx signature, if applicable
  amount?: { token, value }   // payment / swap amount
  outcome?: 'pending' | 'success' | 'failed'
  durationMs?: number         // for PostToolUse events
  errorMessage?: string       // raw error text when outcome=failed
  model?: string              // LLM model used (claude-opus-4-7, etc.)
  tokens?: { input, output, total }
  metadata?: {                // free-form additional data
    source: 'claude-code' | 'cursor' | 'sdk' | ...
    hookEvent?: 'PreToolUse' | 'PostToolUse' | 'Stop' | ...
    sessionId?: string
    traceId?: string
    cwd?: string
    git?: { branch, sha, remote, dirty }
    detail?: { /* per-tool structured detail */ }
    tokensBreakdown?: {
      inputBase, cacheCreation, cacheRead, output
    }
    privacyLevel?: 'minimal' | 'standard' | 'full'
    // anything else you want to attach
  }
}