Function usePermissionRequestLogging

src/components/permissions/hooks.ts:101–209

(
  toolUseConfirm: ToolUseConfirm,
  unaryEvent: UnaryEvent,
)

 * Handles both the analytics event and the unary event logging.
 */
export function usePermissionRequestLogging(
  toolUseConfirm: ToolUseConfirm,
  unaryEvent: UnaryEvent,
): void {
  const setAppState = useSetAppState()
  // Guard against effect re-firing if toolUseConfirm's object reference
  // changes during a single dialog's lifetime (e.g., parent re-renders with a
  // fresh object). Without this, the unconditional setAppState below can
  // cascade into an infinite microtask loop — each re-fire does another
  // setAppState spread + (ant builds) splitCommand → shell-quote regex,
  // pegging CPU at 100% and leaking ~500MB/min in JSRopeString/RegExp allocs.
  // The component is keyed by toolUseID, so this ref resets on remount —
  // we only need to dedupe re-fires WITHIN one dialog instance.
  const loggedToolUseID = useRef<string | null>(null)

  useEffect(() => {
    if (loggedToolUseID.current === toolUseConfirm.toolUseID) {
      return
    }
    loggedToolUseID.current = toolUseConfirm.toolUseID

    // Increment permission prompt count for attribution tracking
    setAppState(prev => ({
      ...prev,
      attribution: {
        ...prev.attribution,
        permissionPromptCount: prev.attribution.permissionPromptCount + 1,
      },
    }))

    // Log analytics event
    logEvent('tengu_tool_use_show_permission_request', {
      messageID: toolUseConfirm.assistantMessage.message
        .id as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
      toolName: sanitizeToolNameForAnalytics(toolUseConfirm.tool.name),
      isMcp: toolUseConfirm.tool.isMcp ?? false,
      decisionReasonType: toolUseConfirm.permissionResult.decisionReason
        ?.type as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
      sandboxEnabled: SandboxManager.isSandboxingEnabled(),
    })

    if (process.env.USER_TYPE === 'ant') {
      const permissionResult = toolUseConfirm.permissionResult
      if (
        toolUseConfirm.tool.name === BashTool.name &&
        permissionResult.behavior === 'ask' &&
        !hasRules(permissionResult.suggestions)
      ) {
        // Log if no rule suggestions ("always allow") are provided
        logEvent('tengu_internal_tool_use_permission_request_no_always_allow', {
          messageID: toolUseConfirm.assistantMessage.message
            .id as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
          toolName: sanitizeToolNameForAnalytics(toolUseConfirm.tool.name),
          isMcp: toolUseConfirm.tool.isMcp ?? false,
          decisionReasonType: (permissionResult.decisionReason?.type ??
            'unknown') as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
          sandboxEnabled: SandboxManager.isSandboxingEnabled(),