Function createBaseHookInput

source code/utils/hooks.ts:303–330

(
  permissionMode?: string,
  sessionId?: string,
  // Typed narrowly (not ToolUseContext) so callers can pass toolUseContext
  // directly via structural typing without this function depending on Tool.ts.
  agentInfo?: { agentId?: string; agentType?: string },
)

 * Creates the base hook input that's common to all hook types
 */
export function createBaseHookInput(
  permissionMode?: string,
  sessionId?: string,
  // Typed narrowly (not ToolUseContext) so callers can pass toolUseContext
  // directly via structural typing without this function depending on Tool.ts.
  agentInfo?: { agentId?: string; agentType?: string },
): {
  session_id: string
  transcript_path: string
  cwd: string
  permission_mode?: string
  agent_id?: string
  agent_type?: string
} {
  const resolvedSessionId = sessionId ?? getSessionId()
  // agent_type: subagent's type (from toolUseContext) takes precedence over
  // the session's --agent flag. Hooks use agent_id presence to distinguish
  // subagent calls from main-thread calls in a --agent session.
  const resolvedAgentType = agentInfo?.agentType ?? getMainThreadAgentType()
  return {
    session_id: resolvedSessionId,
    transcript_path: getTranscriptPathForSession(resolvedSessionId),
    cwd: getCwd(),
    permission_mode: permissionMode,
    agent_id: agentInfo?.agentId,
    agent_type: resolvedAgentType,
  }
}

export interface HookBlockingError {
  blockingError: string