Function executeSessionStartHooks

src/utils/hooks.ts:4026–4051

(
  source: 'startup' | 'resume' | 'clear' | 'compact',
  sessionId?: string,
  agentType?: string,
  model?: string,
  signal?: AbortSignal,
  timeoutMs: number = TOOL_HOOK_EXECUTION_TIMEOUT_MS,
  forceSyncExecution?: boolean,
)

 * @returns Async generator that yields progress messages and hook results
 */
export async function* executeSessionStartHooks(
  source: 'startup' | 'resume' | 'clear' | 'compact',
  sessionId?: string,
  agentType?: string,
  model?: string,
  signal?: AbortSignal,
  timeoutMs: number = TOOL_HOOK_EXECUTION_TIMEOUT_MS,
  forceSyncExecution?: boolean,
): AsyncGenerator<AggregatedHookResult> {
  const hookInput: SessionStartHookInput = {
    ...createBaseHookInput(undefined, sessionId),
    hook_event_name: 'SessionStart',
    source,
    agent_type: agentType,
    model,
  }

  yield* executeHooks({
    hookInput,
    toolUseID: randomUUID(),
    matchQuery: source,
    signal,
    timeoutMs,
    forceSyncExecution,
  })
}

/**
 * Execute setup hooks if configured